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Cai M, Zhang Y, He P, Zhang Z. Recent Advances in Revealing the Electrocatalytic Mechanism for Hydrogen Energy Conversion System. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405008. [PMID: 39075971 DOI: 10.1002/smll.202405008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 07/16/2024] [Indexed: 07/31/2024]
Abstract
In light of the intensifying global energy crisis and the mounting demand for environmental protection, it is of vital importance to develop advanced hydrogen energy conversion systems. Electrolysis cells for hydrogen production and fuel cell devices for hydrogen utilization are indispensable in hydrogen energy conversion. As one of the electrolysis cells, water splitting involves two electrochemical reactions, hydrogen evolution reaction and oxygen evolution reaction. And oxygen reduction reaction coupled with hydrogen oxidation reaction, represent the core electrocatalytic reactions in fuel cell devices. However, the inherent complexity and the lack of a clear understanding of the structure-performance relationship of these electrocatalytic reactions, have posed significant challenges to the advancement of research in this field. In this work, the recent development in revealing the mechanism of electrocatalytic reactions in hydrogen energy conversion systems is reviewed, including in situ characterization and theoretical calculation. First, the working principles and applications of operando measurements in unveiling the reaction mechanism are systematically introduced. Then the application of theoretical calculations in the design of catalysts and the investigation of the reaction mechanism are discussed. Furthermore, the challenges and opportunities are also summarized and discussed for paving the development of hydrogen energy conversion systems.
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Affiliation(s)
- Mingxin Cai
- Materials Tech Laboratory for Hydrogen & Energy Storage, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yiran Zhang
- Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Peilei He
- Materials Tech Laboratory for Hydrogen & Energy Storage, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
- CISRI & NIMTE Joint Innovation Center for Rare Earth Permanent Magnets, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Zhicheng Zhang
- Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
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2
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Sfeir A, Shuck CE, Fadel A, Marinova M, Vezin H, Dacquin JP, Gogotsi Y, Royer S, Laassiri S. Unlocking the Potential of MXene in Catalysis: Decorated Mo 2CT x Catalyst for Ammonia Synthesis under Mild Conditions. J Am Chem Soc 2024; 146:20033-20044. [PMID: 38996197 DOI: 10.1021/jacs.4c03875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
Ammonia, which is one of the most important chemicals for the synthesis of dyes, pharmaceuticals, and fertilizers, is produced by the reaction of molecular hydrogen with nitrogen, over an iron-based catalyst at 400-500 °C under pressure of over 100 bar. Decreasing the operating temperature and pressure of this highly energy-intensive process, developed by Haber and Bosch over 100 years ago, would decrease energy consumption in the world. In this work, we used two-dimensional Mo2CTx MXene as a support for a cobalt-based catalyst. The MXene functionalized by Co showed catalytic activity for ammonia synthesis from H2 and N2 at temperatures as low as 250 °C, without any pretreatment. The developed catalyst was highly active for ammonia synthesis, demonstrating a high rate of up to 9500 μmol g-1active phase h-1 at 400 °C under ambient pressure in steady-state conditions, and did not suffer from any deactivation after 15 days of reaction. The apparent activation energy (Ea) was found to be in the range of 68-74 kJ mol-1, which is in line with values reported for highly active catalysts. This improved catalyst may decrease the energy consumption in the synthesis of ammonia and its derivatives, as well as facilitate the use of ammonia as a hydrogen carrier for renewable energy storage.
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Affiliation(s)
- Amanda Sfeir
- CNRS, ENSCL, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Université de Lille, F-59000 Lille, France
| | - Christopher E Shuck
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Alexandre Fadel
- CNRS, INRA, Centrale Lille, Université Artois, FR 2638─IMEC─Institut Michel-Eugène Chevreul, Université de Lille, 59000 Lille, France
| | - Maya Marinova
- CNRS, INRA, Centrale Lille, Université Artois, FR 2638─IMEC─Institut Michel-Eugène Chevreul, Université de Lille, 59000 Lille, France
| | - Hervé Vezin
- Laboratoire de Spectroscopie pour Les Interactions La Réactivité et L'Environnement, UMR CNRS 8516-LASIRE, Université de Lille, 59000 Lille, France
| | - Jean-Philippe Dacquin
- CNRS, ENSCL, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Université de Lille, F-59000 Lille, France
| | - Yury Gogotsi
- A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Sébastien Royer
- CNRS, ENSCL, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et de Chimie du Solide, Université de Lille, F-59000 Lille, France
| | - Said Laassiri
- Chemical & Biochemical Sciences, Green Process Engineering (CBS), Mohammed VI Polytechnic University, UM6P, 43150 Benguerir, Morocco
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3
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Front A, Lapointe C, Gaudry É. Intermetallics with sp-d orbital hybridisation: morphologies, stabilities and work functions of In-Pd particles at the nanoscale. NANOSCALE HORIZONS 2024; 9:1341-1353. [PMID: 38832452 DOI: 10.1039/d3nh00594a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The field of intermetallic catalysts, alloying a p-block and a transition metal to form a pM-TM bimetallic alloy, is experiencing robust growth, emerging as a vibrant frontier in catalysis research. Although such materials are increasingly used in the form of nanoparticles, a precise description of their atomic arrangements at the nanoscale remains scarce. Based on the In-Pd binary as a typical pM-TM system, we performed density functional theory calculations to investigate the morphologies, relative stabilities and electronic properties of 24 Å and 36 Å nanoparticles built from the In3Pd2, InPd and InPd3 compounds. Wulff equilibrium structures are compared to other ordered and disordered structures. Surface energies are computed to discuss their thermodynamic stability, while work functions are calculated to examine their electronic structures. For any compound, increasing the size leads to the stabilisation of Wulff polyhedra, which are found to offer smaller surface energies than non-crystalline and chemically disordered structures. Disordered In3Pd2 and InPd nanoparticles show a tendency towards amorphisation, owing to repulsive short In-In bonds. Tuning nanoparticles' work functions can be achieved through the control of the surface structure and composition, by virtue of the roughly linear correlation found between the surface composition and the work function which nevertheless includes a certain number of outliers. This work paves the way to rationalisation of both structural and electronic properties of pM-TM nanoparticles.
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Affiliation(s)
- Alexis Front
- Université de Lorraine, CNRS, Institut Jean Lamour, UMR 7198, Campus Artem, 2 allée André Guinier, F-54011, Nancy, France.
- Department of Chemistry and Materials Science, Aalto University, 02150 Espoo, Finland
- Department of Applied physics, Aalto university, P.O. Box 11000, FI-00076 Aalto, Finland
| | - Clovis Lapointe
- Université de Lorraine, CNRS, Institut Jean Lamour, UMR 7198, Campus Artem, 2 allée André Guinier, F-54011, Nancy, France.
- Université Paris-Saclay, CEA, Service de Recherche en Corrosion et Comportement des Matériaux, SRMP, 91191 Gif-sur-Yvette, France
| | - Émilie Gaudry
- Université de Lorraine, CNRS, Institut Jean Lamour, UMR 7198, Campus Artem, 2 allée André Guinier, F-54011, Nancy, France.
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4
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Sun X, Araujo RB, Dos Santos EC, Sang Y, Liu H, Yu X. Advancing electrocatalytic reactions through mapping key intermediates to active sites via descriptors. Chem Soc Rev 2024; 53:7392-7425. [PMID: 38894661 DOI: 10.1039/d3cs01130e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Descriptors play a crucial role in electrocatalysis as they can provide valuable insights into the electrochemical performance of energy conversion and storage processes. They allow for the understanding of different catalytic activities and enable the prediction of better catalysts without relying on the time-consuming trial-and-error approaches. Hence, this comprehensive review focuses on highlighting the significant advancements in commonly used descriptors for critical electrocatalytic reactions. First, the fundamental reaction processes and key intermediates involved in several electrocatalytic reactions are summarized. Subsequently, three types of descriptors are classified and introduced based on different reactions and catalysts. These include d-band center descriptors, readily accessible intrinsic property descriptors, and spin-related descriptors, all of which contribute to a profound understanding of catalytic behavior. Furthermore, multi-type descriptors that collectively determine the catalytic performance are also summarized. Finally, we discuss the future of descriptors, envisioning their potential to integrate multiple factors, broaden application scopes, and synergize with artificial intelligence for more efficient catalyst design and discovery.
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Affiliation(s)
- Xiaowen Sun
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Rafael B Araujo
- Department of Materials Science and Engineering, The Ångstrom Laboratory, Uppsala University, SE-751 03 Uppsala, Sweden
| | - Egon Campos Dos Santos
- Departamento de Física dos Materials e Mecânica, Instituto de Física, Universidade de SãoPaulo, 05508-090, São Paulo, Brazil
| | - Yuanhua Sang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
- Jinan Institute of Quantum Technology, Jinan Branch, Hefei National Laboratory, Jinan, 250101, China
| | - Xiaowen Yu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
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5
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Chen Z, Chen Y, Shi L, Li X, Xu G, Zeng X, Zheng X, Qi Z, Zhang K, Li J, Zhang S, Zhao Z, Zhang Y. Directional Construction of the Highly Stable Active-Site Ensembles at Sub-2 nm to Enhance Catalytic Activity and Selectivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405733. [PMID: 39003615 DOI: 10.1002/adma.202405733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/04/2024] [Indexed: 07/15/2024]
Abstract
Precise control over the size, species, and breakthrough of the activity-selectivity trade-off are great challenges for sub-nano non-noble metal catalysts. Here, for the first time, a "multiheteroatom induced SMSI + in situ P activation" strategy that enables high stability and effective construction of sub-2 nm metal sites for optimizing selective hydrogenation performance is developed. It is synthesized the smallest metal phosphide clusters (<2 nm) including from unary to ternary non-noble metal systems, accompanied by unprecedented thermal stability. In the proof-of-concept demonstration, further modulation of size and species results in the creation of a sub-2 nm site platform, directionally achieving single atom (Ni1), Ni1+metal cluster (Ni1+Nin), or novel Ni1+metal phosphide cluster synergistic sites (Ni1+Ni2Pn), respectively. Based on thorough structure and mechanism investigation, it is found the Ni1+Ni2Pn site is motivated to achieve electronic structure self-optimizing through synergistic SMSI and site coupling effect. Therefore, it speeds up the substrate adsorption-desorption kinetics in semihydrogenation of alkyne and achieves superior catalytic activity that is 56 times higher than the Ni1 site under mild conditions. Compared to traditional active sites, this may represent the highly effective integration of atom utilization, thermal stability, and favorable site requirements for chemisorption properties and reactivities of substrates.
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Affiliation(s)
- Zemin Chen
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Yu Chen
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Lei Shi
- The Instruments Center for Physical Science, University of Science and Technology of China, Hefei, 230026, China
| | - Xinyu Li
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Guangyue Xu
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Xiang Zeng
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Zeming Qi
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Kaihang Zhang
- Brook Byers Institute of Sustainable Systems, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jiong Li
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Shuo Zhang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Zhijian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Ying Zhang
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, China
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6
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Kim H, Yu NK, Tian N, Medford AJ. Assessing Exchange-Correlation Functionals for Heterogeneous Catalysis of Nitrogen Species. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:11159-11175. [PMID: 39015419 PMCID: PMC11247500 DOI: 10.1021/acs.jpcc.4c01497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 06/07/2024] [Accepted: 06/14/2024] [Indexed: 07/18/2024]
Abstract
Increasing interest in the sustainable synthesis of ammonia, nitrates, and urea has led to an increase in studies of catalytic conversion between nitrogen-containing compounds using heterogeneous catalysts. Density functional theory (DFT) is commonly employed to obtain molecular-scale insight into these reactions, but there have been relatively few assessments of the exchange-correlation functionals that are best suited for heterogeneous catalysis of nitrogen compounds. Here, we assess a range of functionals ranging from the generalized gradient approximation (GGA) to the random phase approximation (RPA) for the formation energies of gas-phase nitrogen species, the lattice constants of representative solids from several common classes of catalysts (metals, oxides, and metal-organic frameworks (MOFs)), and the adsorption energies of a range of nitrogen-containing intermediates on these materials. The results reveal that the choice of exchange-correlation functional and van der Waals correction can have a surprisingly large effect and that increasing the level of theory does not always improve the accuracy for nitrogen-containing compounds. This suggests that the selection of functionals should be carefully evaluated on the basis of the specific reaction and material being studied.
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Affiliation(s)
- Honghui Kim
- Department
of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Neung-Kyung Yu
- School
of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Nianhan Tian
- School
of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Andrew J. Medford
- School
of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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7
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Wang C, Sun Y, Chen Y, Zhang Y, Yue L, Han L, Zhao L, Zhu X, Zhan D. In Situ Electropolymerizing Toward EP-CoP/Cu Tandem Catalyst for Enhanced Electrochemical CO 2-to-Ethylene Conversion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404053. [PMID: 38973357 DOI: 10.1002/advs.202404053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/29/2024] [Indexed: 07/09/2024]
Abstract
Electrochemical CO2 reduction has garnered significant interest in the conversion of sustainable energy to valuable fuels and chemicals. Cu-based bimetallic catalysts play a crucial role in enhancing *CO concentration on Cu sites for efficient C─C coupling reactions, particularly for C2 product generation. To enhance Cu's electronic structure and direct its selectivity toward C2 products, a novel strategy is proposed involving the in situ electropolymerization of a nano-thickness cobalt porphyrin polymeric network (EP-CoP) onto a copper electrode, resulting in the creation of a highly effective EP-CoP/Cu tandem catalyst. The even distribution of EP-CoP facilitates the initial reduction of CO2 to *CO intermediates, which then transition to Cu sites for efficient C─C coupling. DFT calculations confirm that the *CO enrichment from Co sites boosts *CO coverage on Cu sites, promoting C─C coupling for C2+ product formation. The EP-CoP/Cu gas diffusion electrode achieves an impressive current density of 726 mA cm-2 at -0.9 V versus reversible hydrogen electrode (RHE), with a 76.8% Faraday efficiency for total C2+ conversion and 43% for ethylene, demonstrating exceptional long-term stability in flow cells. These findings mark a significant step forward in developing a tandem catalyst system for the effective electrochemical production of ethylene.
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Affiliation(s)
- Chao Wang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Science & Technology Innovation Laboratory for Energy Materials of China, Engineering Research Center of Electrochemical Technologies of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yifan Sun
- Department of Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yuzhuo Chen
- Department of Chemistry and State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Yiting Zhang
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Science & Technology Innovation Laboratory for Energy Materials of China, Engineering Research Center of Electrochemical Technologies of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Liangliang Yue
- Department of Chemistry and State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Lianhuan Han
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Science & Technology Innovation Laboratory for Energy Materials of China, Engineering Research Center of Electrochemical Technologies of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Liubin Zhao
- Department of Chemistry, School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xunjin Zhu
- Department of Chemistry and State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Dongping Zhan
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Science & Technology Innovation Laboratory for Energy Materials of China, Engineering Research Center of Electrochemical Technologies of Ministry of Education, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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8
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Žibert T, Likozar B, Huš M. Modelling Photocatalytic N 2 Reduction to Ammonia: Where We Stand and Where We Are Going. CHEMSUSCHEM 2024; 17:e202301730. [PMID: 38523408 DOI: 10.1002/cssc.202301730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Artificial ammonia synthesis via the Haber-Bosch process is environmentally problematic due to the high energy consumption and corresponding CO2 ${_2 }$ emissions, produced during the reaction and before hand in hydrogen production upon methane steam reforming. Photocatalytic nitrogen fixation as a greener alternative to the conventional Haber-Bosch process enables us to perform nitrogen reduction reaction (NRR) under mild conditions, harnessing light as the energy source. Herein, we systematically review first-principles calculations used to determine the electronic/optical properties of photocatalysts, N2 adsorption and to expound possible NRR mechanisms. The most commonly studied photocatalysts for nitrogen fixation are usually modified with dopants, defects, co-catalysts and Z-scheme heterojunctions to prevent charge carrier recombination, improve charge separation efficiency and adjust a band gap to for utilizing a broader light spectrum. Most studies at the atomistic level of modeling are grounded upon density functional theory (DFT) calculations, wholly foregoing excitation effects paramount in photocatalysis. Hence, there is a dire need to consider methods beyond DFT to study the excited state properties more accurately. Furthermore, a few studies have been examined, which include higher level kinetics and macroscale simulations. Ultimately, we show there is still ample room for improvement with regard to first principles calculations and their integration in multiscale models.
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Affiliation(s)
- Taja Žibert
- National Institute of Chemistry, Department of Catalysis and Chemical Reaction Engineering, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
- University of Nova Gorica, Vipavska 13, 5000, Nova Gorica, Slovenia
| | - Blaž Likozar
- National Institute of Chemistry, Department of Catalysis and Chemical Reaction Engineering, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
| | - Matej Huš
- National Institute of Chemistry, Department of Catalysis and Chemical Reaction Engineering, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
- University of Nova Gorica, Vipavska 13, 5000, Nova Gorica, Slovenia
- Institute for the Protection of Cultural Heritage, Poljanska 40, SI-1000, Ljubljana, Slovenia
- Association for Technical Culture (ZOTKS), Zaloška 65, SI, 1001, Ljubljana, Slovenia
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9
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Worakul T, Laplaza R, Das S, Wodrich MD, Corminboeuf C. Microkinetic Molecular Volcano Plots for Enhanced Catalyst Selectivity and Activity Predictions. ACS Catal 2024; 14:9829-9839. [PMID: 38988648 PMCID: PMC11232097 DOI: 10.1021/acscatal.4c01175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/20/2024] [Accepted: 06/04/2024] [Indexed: 07/12/2024]
Abstract
Molecular volcano plots, which facilitate the rapid prediction of the activity and selectivity of prospective catalysts, have emerged as powerful tools for computational catalysis. Here, we integrate microkinetic modeling into the volcano plot framework to develop "microkinetic molecular volcano plots". The resulting unified computational framework allows the influence of important reaction parameters, including temperature, reaction time, and concentration, to be quickly incorporated and more complex situations, such as off-cycle resting states and coupled catalytic cycles, to be tackled. Compared to previous generations of molecular volcanoes, these microkinetic counterparts offer a more comprehensive understanding of catalytic behavior, in which selectivity and product ratios can be explicitly determined by tracking the evolution of each product concentration over time. This is demonstrated by examining two case studies, rhodium-catalyzed hydroformylation and metal-catalyzed hydrosilylation, in which the unique insights provided by microkinetic modeling, as well as the ability to simultaneously screen catalysts and reaction conditions, are highlighted. To facilitate the construction of these plots/maps, we introduce mikimo, a Python program that seamlessly integrates with our previously developed automated volcano builder, volcanic.
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Affiliation(s)
- Thanapat Worakul
- Laboratory
for Computational Molecular Design, Institute of Chemical Sciences
and Engineering, Ecole Polytechnique Fedéralé
de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Rubén Laplaza
- Laboratory
for Computational Molecular Design, Institute of Chemical Sciences
and Engineering, Ecole Polytechnique Fedéralé
de Lausanne (EPFL), 1015 Lausanne, Switzerland
- National
Center for Competence in Research-Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne
(EPFL), 1015 Lausanne, Switzerland
| | - Shubhajit Das
- Laboratory
for Computational Molecular Design, Institute of Chemical Sciences
and Engineering, Ecole Polytechnique Fedéralé
de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Matthew D. Wodrich
- Laboratory
for Computational Molecular Design, Institute of Chemical Sciences
and Engineering, Ecole Polytechnique Fedéralé
de Lausanne (EPFL), 1015 Lausanne, Switzerland
- National
Center for Competence in Research-Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne
(EPFL), 1015 Lausanne, Switzerland
| | - Clemence Corminboeuf
- Laboratory
for Computational Molecular Design, Institute of Chemical Sciences
and Engineering, Ecole Polytechnique Fedéralé
de Lausanne (EPFL), 1015 Lausanne, Switzerland
- National
Center for Competence in Research-Catalysis (NCCR-Catalysis), Ecole Polytechnique Fédérale de Lausanne
(EPFL), 1015 Lausanne, Switzerland
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10
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Lalith N, Singh AR, Gauthier JA. The Importance of Reaction Energy in Predicting Chemical Reaction Barriers with Machine Learning Models. Chemphyschem 2024; 25:e202300933. [PMID: 38517585 DOI: 10.1002/cphc.202300933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
Improving our fundamental understanding of complex heterocatalytic processes increasingly relies on electronic structure simulations and microkinetic models based on calculated energy differences. In particular, calculation of activation barriers, usually achieved through compute-intensive saddle point search routines, remains a serious bottleneck in understanding trends in catalytic activity for highly branched reaction networks. Although the well-known Brønsted-Evans-Polyani (BEP) scaling - a one-feature linear regression model - has been widely applied in such microkinetic models, they still rely on calculated reaction energies and may not generalize beyond a single facet on a single class of materials, e. g., a terrace sites on transition metals. For highly branched and energetically shallow reaction networks, such as electrochemical CO2 reduction or wastewater remediation, calculating even reaction energies on many surfaces can become computationally intractable due to the combinatorial explosion of states that must be considered. Here, we investigate the feasibility of activation barrier prediction without knowledge of the reaction energy using linear and nonlinear machine learning (ML) models trained on a new database of over 500 dehydrogenation activation barriers. We also find that inclusion of the reaction energy significantly improves both classes of ML models, but complex nonlinear models can achieve performance similar to the simplest BEP scaling when predicting activation barriers on new systems. Additionally, inclusion of the reaction energy significantly improves generalizability to new systems beyond the training set. Our results suggest that the reaction energy is a critical feature to consider when building models to predict activation barriers, indicating that efforts to reliably predict reaction energies through, e. g., the Open Catalyst Project and others, will be an important route to effective model development for more complex systems.
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Affiliation(s)
- Nithin Lalith
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA
| | | | - Joseph A Gauthier
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA
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11
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Jo S, Jeon JI, Shin KH, Zhang L, Lee KB, Hong J, Sohn JI. Stabilization of Lattice Oxygen Evolution Reactions in Oxophilic Ce-Mediated Bi/BiCeO 1.8H Electrocatalysts for Efficient Anion Exchange Membrane Water Electrolyzers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314211. [PMID: 38558476 DOI: 10.1002/adma.202314211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/20/2024] [Indexed: 04/04/2024]
Abstract
The lattice oxygen mechanism (LOM) offers an efficient reaction pathway for oxygen evolution reactions (OERs) in energy storage and conversion systems. Owing to the involvement of active lattice oxygen enhancing electrochemical activity, addressing the structural and electrochemical stabilities of LOM materials is crucial. Herein, a heterostructure (Bi/BiCeO1.8H) containing abundant under-coordinated oxygen atoms having oxygen nonbonding states is synthesized by a simple electrochemical deposition method. Given the difference in reduction potentials between Bi and Ce, partially reduced Bi nanoparticles and surrounding under-coordinated oxygen atoms are generated in BiCeO1.8H. It is found that the lattice oxygen can be activated as a reactant of the OER when the valence state of Bi increases to Bi5+, leading to increased metal-oxygen covalency and that the oxophilic Ce3+/4+ redox couple can maintain the Bi nanoparticles and surrounding under-coordinated oxygen atoms by preventing over-oxidation of Bi. The anion exchange membrane water electrolyzer with Bi/BiCeO1.8H exhibits a low cell voltage of 1.79 V even at a high practical current density of 1.0 A cm-2. Furthermore, the cell performance remains significantly stable over 100 h with only a 2.2% increase in the initial cell voltage, demonstrating sustainable lattice oxygen redox.
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Affiliation(s)
- Seunghwan Jo
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - Jeong In Jeon
- School of Materials Science and Engineering, Kookmin University, Seoul, 02707, Republic of Korea
| | - Ki Hoon Shin
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - Liting Zhang
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - Keon Beom Lee
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
| | - John Hong
- School of Materials Science and Engineering, Kookmin University, Seoul, 02707, Republic of Korea
| | - Jung Inn Sohn
- Division of Physics and Semiconductor Science, Dongguk University, Seoul, 04620, Republic of Korea
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12
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Rivoire O. A role for conformational changes in enzyme catalysis. Biophys J 2024; 123:1563-1578. [PMID: 38704639 PMCID: PMC11213973 DOI: 10.1016/j.bpj.2024.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/15/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024] Open
Abstract
The role played by conformational changes in enzyme catalysis is controversial. In addition to examining specific enzymes, studying formal models can help identify the conditions under which conformational changes promote catalysis. Here, we present a model demonstrating how conformational changes can break a generic trade-off due to the conflicting requirements of successive steps in catalytic cycles, namely high specificity for the transition state to accelerate the chemical transformation and low affinity for the products to favor their release. The mechanism by which the trade-off is broken is a transition between conformations with different affinities for the substrate. The role of the effector that induces the transition is played by a substrate "handle," a part of the substrate that is not chemically transformed but whose interaction with the enzyme is nevertheless essential to rapidly complete the catalytic cycle. A key element of the model is the formalization of the constraints causing the trade-off that the presence of multiple states breaks, which we attribute to the strong chemical similarity between successive reaction states-substrates, transition states, and products. For the sake of clarity, we present our model for irreversible one-step unimolecular reactions. In this context, we demonstrate how the different forms that chemical similarities between reaction states can take impose limits on the overall catalytic turnover. We first analyze catalysts without internal degrees of freedom and then show how two-state catalysts can overcome their limitations. Our results recapitulate previous proposals concerning the role of conformational changes and substrate handles in a formalism that makes explicit the constraints that elicit these features. In addition, our approach establishes links with studies in the field of heterogeneous catalysis, where the same trade-offs are observed and where overcoming them is a well-recognized challenge.
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13
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Ghuffar HA, Noh H. Lithium-coupled electron transfer reactions of nano-confined WO x within Zr-based metal-organic framework. Front Chem 2024; 12:1427536. [PMID: 38947957 PMCID: PMC11214277 DOI: 10.3389/fchem.2024.1427536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 05/23/2024] [Indexed: 07/02/2024] Open
Abstract
Interfacial charge transfer reactions involving cations and electrons are fundamental to (photo/electro) catalysis, energy storage, and beyond. Lithium-coupled electron transfer (LCET) at the electrode-electrolyte interfaces of lithium-ion batteries (LIBs) is a preeminent example to highlight the importance of charge transfer in modern-day society. The thermodynamics of LCET reactions define the minimal energy for charge/discharge of LIBs, and yet, these parameters are rarely available in the literature. Here, we demonstrate the successful incorporation of tungsten oxides (WOx) within a chemically stable Zr-based metal-organic framework (MOF), MOF-808. Cyclic voltammograms (CVs) of the composite, WOx@MOF-808, in Li+-containing acetonitrile (MeCN)-based electrolytes showed an irreversible, cathodic Faradaic feature that shifted in a Nernstian fashion with respect to the Li+ concentration, i.e., ∼59 mV/log [(Li+)]. The Nernstian dependence established 1:1 stoichiometry of Li+ and e-. Using the standard redox potential of Li+/0, the apparent free energy of lithiation of WOx@MOF-808 (ΔGapp,Li) was calculated to be -36 ± 1 kcal mol-1. ΔGapp,Li is an intrinsic parameter of WOx@MOF-808, and thus by deriving the similar reaction free energies of other metal oxides, their direct comparisons can be achieved. Implications of the reported measurements will be further contrasted to proton-coupled electron transfer (PCET) reactions on metal oxides.
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Affiliation(s)
| | - Hyunho Noh
- Department of Chemistry and Biochemistry, The University of Oklahoma, Norman, OK, United States
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14
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Chen YJ, Wen J, Luo ZR, Sun FL, Chen WX, Zhuang GL. Metal-support spin orders: Crucial effect on electrocatalytic oxygen reduction. J Chem Phys 2024; 160:224702. [PMID: 38856683 DOI: 10.1063/5.0207891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/23/2024] [Indexed: 06/11/2024] Open
Abstract
Magnetic property (e.g. spin order) of support is of great importance in the rational design of heterogeneous catalysts. Herein, we have taken the Ni-supported ferromagnetic (FM) CrBr3 support (Nix/CrBr3) to thoroughly investigate the effect of spin-order on electrocatalytic oxygen reduction reaction (ORR) via spin-polarized density functional theory calculations. Specifically, Ni loading induces anti-FM coupling in Ni-Cr, leading to a transition from FM-to-ferrimagnetic (FIM) properties, while Ni-Ni metallic bonds create a robust FM direct exchange, benefiting the improvement of the phase transition temperature. Interestingly, with the increase in Ni loading, the easy magnetic axis changes from out-of-plane (2D-Heisenberg) to in-plane (2D-XY). The adsorption properties of Nix/CrBr3, involving O2 adsorption energy and configuration, are not governed by the d-band center but strongly correlate with magnetic anisotropy. It is noteworthy that the applied potential and electrolyte acidity triggers spin-order transition phenomena during the ORR and induces the catalytic pathway change from 4e- ORR to 2e- ORR with the excellent onset potential of 0.93 V/reversible hydrogen electrode, comparable to the existing most excellent noble-metal catalysts. Generally, these findings offer new avenues to understand and design heterogeneous catalysts with magnetic support.
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Affiliation(s)
- Yi-Jie Chen
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Jun Wen
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Zhi-Rui Luo
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Fu-Li Sun
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Wen-Xian Chen
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
| | - Gui-Lin Zhuang
- H-PSI Computational Chemistry Lab, Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, Anhui, People's Republic of China
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15
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Solti D, Jacobson CR, Yates JAO, Hammel BF, Naidu GN, Arndt CE, Bayles A, Yuan Y, Dhindsa P, Luu JT, Farr C, Wu G, Everitt HO, Tsai AL, Yazdi S, Nordlander P, Halas NJ. Reduced-Dimensionality Al Nanocrystals: Nanowires, Nanobars, and Nanomoustaches. NANO LETTERS 2024; 24:6897-6905. [PMID: 38805366 DOI: 10.1021/acs.nanolett.4c00895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Aluminum nanocrystals created by catalyst-driven colloidal synthesis support excellent plasmonic properties, due to their high level of elemental purity, monocrystallinity, and controlled size and shape. Reduction in the rate of nanocrystal growth enables the synthesis of highly anisotropic Al nanowires, nanobars, and singly twinned "nanomoustaches". Electron energy loss spectroscopy was used to study the plasmonic properties of these nanocrystals, spanning the broad energy range needed to map their plasmonic modes. The coupling between these nanocrystals and other plasmonic metal nanostructures, specifically Ag nanocubes and Au films of controlled nanoscale thickness, was investigated. Al nanocrystals show excellent long-term stability under atmospheric conditions, providing a practical alternative to coinage metal-based nanowires in assembled nanoscale devices.
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Affiliation(s)
- David Solti
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Christian R Jacobson
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - J Alexander Orion Yates
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, United States
| | - Benjamin Franklin Hammel
- Renewable & Sustainable Energy Institute, University of Colorado─Boulder, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado─Boulder, Boulder, Colorado 80309, United States
| | - Gopal Narmada Naidu
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Catherine E Arndt
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Aaron Bayles
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Yigao Yuan
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Parmeet Dhindsa
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Jessica T Luu
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Research and Leadership Enabling Discoveries in Chemical Nanoscience Research Experience for Undergraduates, Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Corbin Farr
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Gang Wu
- Division of Hematology-Oncology Department of Internal Medicine, The University of Texas McGovern Medical School, Houston, Texas 77030, United States
| | - Henry O Everitt
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
| | - Ah-Lim Tsai
- Division of Hematology-Oncology Department of Internal Medicine, The University of Texas McGovern Medical School, Houston, Texas 77030, United States
| | - Sadegh Yazdi
- Renewable & Sustainable Energy Institute, University of Colorado─Boulder, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado─Boulder, Boulder, Colorado 80309, United States
| | - Peter Nordlander
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, United States
| | - Naomi J Halas
- Laboratory for Nanophotonics, Rice University, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, United States
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16
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Sargeant E, Rodriguez P, Calle-Vallejo F. Cation Effects on the Adsorbed Intermediates of CO 2 Electroreduction Are Systematic and Predictable. ACS Catal 2024; 14:8814-8822. [PMID: 38868103 PMCID: PMC11165452 DOI: 10.1021/acscatal.4c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/16/2024] [Accepted: 05/07/2024] [Indexed: 06/14/2024]
Abstract
The electrode-electrolyte interface, and in particular the nature of the cation, has considerable effects on the activity and product selectivity of the electrochemical reduction of CO2. Therefore, to improve the electrocatalysis of this challenging reaction, it is paramount to ascertain whether cation effects on adsorbed intermediates are systematic. Here, DFT calculations are used to show that the effects of K+, Na+, and Mg2+, on single carbon CO2 reduction intermediates can either be stabilizing or destabilizing depending on the metal and the adsorbate. Because systematic trends are observed, cation effects can be accurately predicted in simple terms for a wide variety of metals, cations and adsorbed species. These results are then applied to the reduction of CO2 to CO on four different catalytic surfaces (Au, Ag, Cu, Pd) and activation of weak-binding metals is consistently observed by virtue of the stabilization of the key intermediate *COOH.
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Affiliation(s)
- Elizabeth Sargeant
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
- Department
of Materials Science and Chemical Physics & Institute of Theoretical
and Computational Chemistry (IQTC), University
of Barcelona, Barcelona 08028, Spain
| | - Paramaconi Rodriguez
- School
of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
- Centre
for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Vitoria-Gasteiz 01510, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza de Euskadi 5, Bilbao 48009, Spain
| | - Federico Calle-Vallejo
- Department
of Materials Science and Chemical Physics & Institute of Theoretical
and Computational Chemistry (IQTC), University
of Barcelona, Barcelona 08028, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza de Euskadi 5, Bilbao 48009, Spain
- Nano-Bio
Spectroscopy Group and European Theoretical Spectroscopy Facility
(ETSF), Department of Advanced Materials and Polymers: Physics, Chemistry
and Technology, University of the Basque
Country UPV/EHU, Avenida Tolosa 72, San Sebastian 20018, Spain
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17
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Huang H, Chen C, Chang CC, Lai F, Liu S, Fu H, Chen Y, Li H, Huang WH, Zhang N, Liu T. Crystal-Phase-Engineered High-Entropy Alloy Aerogels for Enhanced Ethylamine Electrosynthesis from Acetonitrile. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314142. [PMID: 38624068 DOI: 10.1002/adma.202314142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 04/13/2024] [Indexed: 04/17/2024]
Abstract
Crystal-phase engineering that promotes the rearrangement of active atoms to form new structural frameworks achieves excellent result in the field of electrocatalysis and optimizes the performance of various electrochemical reactions. Herein, for the first time, it is found that the different components in metallic aerogels will affect the crystal-phase transformation, especially in high-entropy alloy aerogels (HEAAs), whose crystal-phase transformation during annealing is more difficult than medium-entropy alloy aerogels (MEAAs), but they still show better electrochemical performance. Specifically, PdPtCuCoNi HEAAs with the parent phase of face-centered cubic (FCC) PdCu possess excellent 89.24% of selectivity, 746.82 mmol h-1 g-1 cat. of yield rate, and 90.75% of Faraday efficiency for ethylamine during acetonitrile reduction reaction (ARR); while, maintaining stability under 50 h of long-term testing and ten consecutive electrolysis cycles. The structure-activity relationship indicates that crystal-phase regulation from amorphous state to FCC phase promotes the atomic rearrangement in HEAAs, thereby optimizing the electronic structure and enhancing the adsorption strength of reaction intermediates, improving the catalytic performance. This study provides a new paradigm for developing novel ARR electrocatalysts and also expands the potential of crystal-phase engineering in other application areas.
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Affiliation(s)
- Honggang Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Cun Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Chun-Chi Chang
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hui Fu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yao Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Hanjun Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu, 30076, Taiwan
| | - Nan Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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18
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Lyu Z, Cai J, Zhang XG, Li H, Huang H, Wang S, Li T, Wang Q, Xie Z, Xie S. Biphase Pd Nanosheets with Atomic-Hybrid RhO x/Pd Amorphous Skins Disentangle the Activity-Stability Trade-Off in Oxygen Reduction Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314252. [PMID: 38551140 DOI: 10.1002/adma.202314252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/16/2024] [Indexed: 04/05/2024]
Abstract
The activity-stability trade-off relationship of oxygen reduction reaction (ORR) is a tricky issue that strikes the electrocatalyst population and hinders the widespread application of fuel cells. Here neoteric biphase Pd nanosheets that are structured with ultrathin two-dimensional crystalline Pd inner cores and ≈1 nm thin atomic-hybrid RhOx/Pd amorphous skins, named c/a-Pd@PdRh NSs, for disentangling this trade-off dilemma for alkaline ORR are developed. The superthin amorphous skins significantly amplify the quantity of flexibly low-coordinated atoms for electrocatalysis. An in situ selected oxidation of the top-surface Rh dopants creates atomically hybrid RhOx/Pd disorder surfaces. Detailed energy spectra and theoretical simulation confirm that these RhOx/Pd interfaces can arouse a surface charge redistribution, causing significant electron deficiency and lowered d-band center for surface Pd. Meanwhile, anticorrosive Rh/RhOx species can thermodynamically passivate the neighboring Pd atoms from oxidative dissolution. Thanks to these amplified interfacial effects, the biphase c/a-Pd@PdRh NSs simultaneously exhibit a superhigh ORR activity (5.92 A mg-1, 22.8 times that of Pt/C) and an outstanding long-lasting stability after 100k cycles of accelerated durability test, showcasing unprecedented electrocatalysts for breaking the activity-stability trade-off relationship of ORR. This work paves a bran-new strategy for designing high-performance electrocatalysts through creating modulated amorphous skins on low-dimensional nanomaterials.
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Affiliation(s)
- Zixi Lyu
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Junlin Cai
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Xia-Guang Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Huiqi Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Hongpu Huang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Shupeng Wang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Tianyu Li
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Qiuxiang Wang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhaoxiong Xie
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Shuifen Xie
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, China
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19
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Rice PS, Lee G, Schwartz B, Autrey T, Ginovska B. Leveraging Curvature on N-Doped Carbon Materials for Hydrogen Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310162. [PMID: 38221703 DOI: 10.1002/smll.202310162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/25/2023] [Indexed: 01/16/2024]
Abstract
Carbon sorbent materials have shown great promise for solid-state hydrogen (H2) storage. Modification of these materials with nitrogen (N) dopants has been undertaken to develop materials that can store H2 at ambient temperatures. In this work density functional theory (DFT) calculations are used to systematically probe the influence of curvature on the stability and activity of undoped and N-doped carbon materials toward H binding. Specifically, four models of carbon materials are used: graphene, [5,5] carbon nanotube, [5,5] D5d-C120, and C60, to extract and correlate the thermodynamic properties of active sites with varying degrees of sp2 hybridization (curvature). From the calculations and analysis, it is found that graphitic N-doping is thermodynamically favored on more pyramidal sites with increased curvature. In contrast, it is found that the hydrogen binding energy is weakly affected by curvature and is dominated by electronic effects induced by N-doping. These findings highlight the importance of modulating the heteroatom doping configuration and the lattice topology when developing materials for H2 storage.
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Affiliation(s)
- Peter S Rice
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
| | - Gabriel Lee
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
| | - Brayden Schwartz
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
| | - Tom Autrey
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
| | - Bojana Ginovska
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
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20
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Cui L, Sun Z, Wang Y, Jian X, Li H, Zhang X, Gao X, Li R, Liu J. *H migration-assisted MvK mechanism for efficient electrochemical NH 3 synthesis over TM-TiNO. Phys Chem Chem Phys 2024; 26:15705-15716. [PMID: 38766741 DOI: 10.1039/d4cp01207k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
The electrochemical NH3 synthesis on TiNO is proposed to follow the Mars-van Krevelen (MvK) mechanism, offering more favorable N2 adsorption and activation on the N vacancy (Nv) site, compared to the conventional associative mechanism. The regeneration cycle of Nv represents the rate-determining step in this process. This study investigates a series of TM (Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt)-TiNO to explore the *H migration (from TM to TiNO)-promoted Nv cycle. The screening results indicate that Ni-TiNO exhibits strong H2O decomposition for *H production with 0.242 eV and low *H migration resistance with 0.913 eV. Notably, *H migration from Ni to TiNO significantly reduces the Nv formation energy to 0.811 eV, compared to 1.387 eV on pure TiNO. Meanwhile, in the presence of *H, Nv formation takes precedence over Tiv and Ov. Lastly, electronic performance calculations reveal that the collaborative function provided by Ni and Nv enables highly stable and efficient NH3 synthesis. The *H migration-assisted MvK mechanism demonstrates effective catalytic cycle performance in electrochemical N2 fixation and may have potential applicability to other hydrogenation reactions utilizing water as a proton source.
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Affiliation(s)
- Luyao Cui
- Key Laboratory of Coal Science and Technology Ministry of Education, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Zijun Sun
- Xi'an North Huian Chemical Industries Co. Ltd, Xi'an 710302, Shaanxi, China
| | - Yawen Wang
- Key Laboratory of Coal Science and Technology Ministry of Education, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Xuan Jian
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Houfen Li
- Shanxi Key Laboratory of Compound Air Pollutions Identification and Control, College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Xiao Zhang
- Shanxi Key Laboratory of Compound Air Pollutions Identification and Control, College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Xiaoming Gao
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, Shaanxi, China
| | - Rui Li
- Key Laboratory of Coal Science and Technology Ministry of Education, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
- Shanxi Key Laboratory of Compound Air Pollutions Identification and Control, College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Jianxin Liu
- Key Laboratory of Coal Science and Technology Ministry of Education, College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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21
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Hu Y, Liu J, Luo W, Dong J, Lee C, Zhang N, Chen M, Xu Y, Wu D, Zhang M, Zhu Q, Hu E, Geng D, Zhong L, Yan Q. Alloying Pd with Ru enables electroreduction of nitrate to ammonia with ∼100% faradaic efficiency over a wide potential window. Chem Sci 2024; 15:8204-8215. [PMID: 38817556 PMCID: PMC11134412 DOI: 10.1039/d4sc00558a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/03/2024] [Indexed: 06/01/2024] Open
Abstract
Electrocatalytic nitrate (NO3-) reduction reaction (eNO3-RR) to ammonia under ambient conditions is deemed a sustainable route for wastewater treatment and a promising alternative to the Haber-Bosch process. However, there is still a lack of efficient electrocatalysts to achieve high NH3 production performance at wastewater-relevant low NO3- concentrations. Herein, we report a Pd74Ru26 bimetallic nanocrystal (NC) electrocatalyst capable of exhibiting an average NH3 FE of ∼100% over a wide potential window from 0.1 to -0.3 V (vs. reversible hydrogen electrode, RHE) at a low NO3- concentration of 32.3 mM. The average NH3 yield rate at -0.3 V can reach 16.20 mg h-1 cm-2. Meanwhile, Pd74Ru26 also demonstrates excellent electrocatalytic stability for over 110 h. Experimental investigations and density functional theory (DFT) calculations suggest that the electronic structure modulation between Pd and Ru favors the optimization of NO3- transport with respect to single components. Along the *NO3 reduction pathway, the synergy between Pd and Ru can also lower the energy barrier of the rate-determining steps (RDSs) on Ru and Pd, which are the protonation of *NO2 and *NO, respectively. Finally, this unique alloying design achieves a high-level dynamic equilibrium of adsorption and coupling between *H and various nitrogen intermediates during eNO3-RR.
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Affiliation(s)
- Yue Hu
- School of Mathematics and Physics, University of Science and Technology Beijing Beijing 100083 China
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Jiawei Liu
- Institute of Materials Research and Engineering, A*STAR 138634 Singapore
| | - Wenyu Luo
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Jinfeng Dong
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Carmen Lee
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Nan Zhang
- State Key Laboratory of Applied Organic Chemistry, Frontiers Science Center for Rare Isotopes, College of Chemistry and Chemical Engineering, Lanzhou University Lanzhou 730000 China
| | - Mengxin Chen
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Yifan Xu
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Dongshuang Wu
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Mingsheng Zhang
- Institute of Materials Research and Engineering, A*STAR 138634 Singapore
| | - Qiang Zhu
- Institute of Materials Research and Engineering, A*STAR 138634 Singapore
| | - Erhai Hu
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
| | - Dongsheng Geng
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology Nanjing 210044 China
| | - Lixiang Zhong
- School of Physics, Beijing Institute of Technology Beijing 100081 China
| | - Qingyu Yan
- School of Materials Science and Engineering, Nanyang Technological University 639798 Singapore
- Institute of Materials Research and Engineering, A*STAR 138634 Singapore
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22
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Mallikarjun Sharada S, Gauthier JA. Modeling Heterogeneous Catalysis and Electrocatalysis. Chemphyschem 2024:e202400507. [PMID: 38801730 DOI: 10.1002/cphc.202400507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Indexed: 05/29/2024]
Abstract
With this special collection of articles with contributions from friends, former colleagues, collaborators, students, and postdocs, we celebrate Jens K. Nørskov′s belated 70th birthday. The studies reported here highlight just a small portion of the breadth and depth of Jens Nørskov's 40 years of influence in modeling heterogeneous catalysis and electrocatalysis. Many challenges remain in enabling in silico catalyst design, and the contributions in this special collection highlight the growing importance of machine learning approaches towards solving these challenges.
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Affiliation(s)
- Shaama Mallikarjun Sharada
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Joseph A Gauthier
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USA
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23
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Li Y, Wei Z, Sun Z, Zhai H, Li S, Chen W. Sulfur Modified Carbon-Based Single-Atom Catalysts for Electrocatalytic Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401900. [PMID: 38798155 DOI: 10.1002/smll.202401900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/05/2024] [Indexed: 05/29/2024]
Abstract
Efficient and sustainable energy development is a powerful tool for addressing the energy and environmental crises. Single-atom catalysts (SACs) have received high attention for their extremely high atom utilization efficiency and excellent catalytic activity, and have broad application prospects in energy development and chemical production. M-N4 is an active center model with clear catalytic activity, but its catalytic properties such as catalytic activity, selectivity, and durability need to be further improved. Adjustment of the coordination environment of the central metal by incorporating heteroatoms (e.g., sulfur) is an effective and feasible modification method. This paper describes the precise synthetic methods for introducing sulfur atoms into M-N4 and controlling whether they are directly coordinated with the central metal to form a specific coordination configuration, the application of sulfur-doped carbon-based single-atom catalysts in electrocatalytic reactions such as ORR, CO2RR, HER, OER, and other electrocatalytic reaction are systematically reviewed. Meanwhile, the effect of the tuning of the electronic structure and ligand configuration parameters of the active center due to doped sulfur atoms with the improvement of catalytic performance is introduced by combining different characterization and testing methods. Finally, several opinions on development of sulfur-doped carbon-based SACs are put forward.
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Affiliation(s)
- Yinqi Li
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zihao Wei
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zhiyi Sun
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Huazhang Zhai
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Shenghua Li
- School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Wenxing Chen
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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24
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Zhang M, Zhou D, Mu X, Wang D, Liu S, Dai Z. Regulating the Critical Intermediates of Dual-Atom Catalysts for CO 2 Electroreduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402050. [PMID: 38801298 DOI: 10.1002/smll.202402050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Electrocatalysis is a very attractive way to achieve a sustainable carbon cycle by converting CO2 into organic fuels and feedstocks. Therefore, it is crucial to design advanced electrocatalysts by understanding the reaction mechanism of electrochemical CO2 reduction reaction (eCO2RR) with multiple electron transfers. Among electrocatalysts, dual-atom catalysts (DACs) are promising candidates due to their distinct electronic structures and extremely high atomic utilization efficiency. Herein, the eCO2RR mechanism and the identification of intermediates using advanced characterization techniques, with a particular focus on regulating the critical intermediates are systematically summarized. Further, the insightful understanding of the functionality of DACs originates from the variable metrics of electronic structures including orbital structure, charge distribution, and electron spin state, which influences the active sites and critical intermediates in eCO2RR processes. Based on the intrinsic relationship between variable metrics and critical intermediates, the optimized strategies of DACs are summarized containing the participation of synergistic atoms, engineering of the atomic coordination environment, regulation of the diversity of central metal atoms, and modulation of metal-support interaction. Finally, the challenges and future opportunities of atomically dispersed catalysts for eCO2RR processes are discussed.
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Affiliation(s)
- Mengyang Zhang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Dingyang Zhou
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Xueqin Mu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Suli Liu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Zhihui Dai
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China
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25
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Sahoo SJ, Xu Q, Lei X, Staros D, Iyer GR, Rubenstein B, Suryanarayana P, Medford AJ. Self-Consistent Convolutional Density Functional Approximations: Application to Adsorption at Metal Surfaces. Chemphyschem 2024; 25:e202300688. [PMID: 38421371 DOI: 10.1002/cphc.202300688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/02/2024]
Abstract
The exchange-correlation (XC) functional in density functional theory is used to approximate multi-electron interactions. A plethora of different functionals are available, but nearly all are based on the hierarchy of inputs commonly referred to as "Jacob's ladder." This paper introduces an approach to construct XC functionals with inputs from convolutions of arbitrary kernels with the electron density, providing a route to move beyond Jacob's ladder. We derive the variational derivative of these functionals, showing consistency with the generalized gradient approximation (GGA), and provide equations for variational derivatives based on multipole features from convolutional kernels. A proof-of-concept functional, PBEq, which generalizes the PBE α ${\alpha }$ framework with α ${\alpha }$ being a spatially-resolved function of the monopole of the electron density, is presented and implemented. It allows a single functional to use different GGAs at different spatial points in a system, while obeying PBE constraints. Analysis of the results underlines the importance of error cancellation and the XC potential in data-driven functional design. After testing on small molecules, bulk metals, and surface catalysts, the results indicate that this approach is a promising route to simultaneously optimize multiple properties of interest.
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Affiliation(s)
| | - Qimen Xu
- Georgia Institute of Technology, Atlanta, GA
- National Supercomputing Center, Shenzhen, People's Republic of China
| | | | - Daniel Staros
- Department of Chemistry, Brown University, Providence, RI
| | - Gopal R Iyer
- Department of Chemistry, Brown University, Providence, RI
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26
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Huang J, Xiao X, Chen B. Insight into the electrochemical process of EDTA-assisted soil washing effluent under alternating current. JOURNAL OF HAZARDOUS MATERIALS 2024; 470:134115. [PMID: 38626676 DOI: 10.1016/j.jhazmat.2024.134115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 03/11/2024] [Accepted: 03/22/2024] [Indexed: 04/18/2024]
Abstract
EDTA has been widely utilized as a chelating agent in soil heavy metal remediation, due to its strong coordination capability. Electrochemical deposition is a promising avenue to treat soil washing effluent. However, the impact of advanced electrochemical techniques on EDTA remains incompletely understood. Herein, we present a pioneering approach, utilizing a dual-chamber electrolytic cell and alternating current (AC) power supply. This approach achieves concurrent removal of M-EDTA while efficiently recovering heavy metal and recycling EDTA. Results demonstrate AC displays superior heavy metal removal capability for Cu, Pb, and Cd compare to direct current (DC), with EDTA decomposition mainly occurring in the anolyte. Substituting DC with AC and employing the dual-chamber electrolytic cell significantly enhances EDTA recovery efficiency from 47% to an impressive 96.8%. XPS and Raman spectra reveal an enhanced oxidative surface of the graphite anode under AC, which diminishes the decomposition of EDTA. Long-term experiments validate that this strategy boosts EDTA cyclability to 20 cycles with an outstanding 84% recovery efficiency and negligible electrode corrosion, surpassing the 8 cycles under the traditional strategy. This study innovatively combines cell design and electrochemical techniques, remarkably improving the reusability of EDTA and anode, offering valuable insights for chelate-related applications.
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Affiliation(s)
- Jiating Huang
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Xin Xiao
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China
| | - Baoliang Chen
- Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang 310058, China.
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27
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Schalenbach M, Tesch R, Kowalski PM, Eichel RA. The electrocatalytic activity for the hydrogen evolution reaction on alloys is determined by element-specific adsorption sites rather than d-band properties. Phys Chem Chem Phys 2024; 26:14171-14185. [PMID: 38713015 DOI: 10.1039/d4cp01084a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Trends of the electrocatalytic activities for the hydrogen evolution reaction (HER) across transition metals are typically explained by d-band properties such as center or upper edge positions in relation to Fermi levels. Here, the universality of this relation is questioned for alloys, exemplified for the AuPt system which is examined with electrocatalytic measurements and density functional theory (DFT) calculations. At small overpotentials, linear combinations of the pure-metals' Tafel kinetics normalized to the alloy compositions are found to precisely resemble the measured HER activities. DFT calculations show almost neighbor-independent adsorption energies on Au and Pt surface-sites, respectively, as the adsorbed hydrogen influences the electron density mostly locally at the adsorption site itself. In contrast, the density of states of the d-band describe the delocalized conduction electrons in the alloys, which are unable to portray the local electronic environments at adsorption sites and related bonding strengths. The adsorption energies at element-specific surface sites are related to overpotential-dependent reaction mechanisms in a multidimensional reinterpretation of the volcano plot for alloys, which bridges the found inconsistencies between activity and bonding strength descriptors of the common electrocatalytic theory for alloys.
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Affiliation(s)
- Maximilian Schalenbach
- Fundamental Electrochemistry (IEK-9), Institute of Energy and Climate Research, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany.
| | - Rebekka Tesch
- Theory and Computation of Energy Materials (IEK-13), Institute of Energy and Climate Research, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
- Jülich Aachen Research Alliance JARA Energy & Center for Simulation and Data Science (CSD), 52425 Jülich, Germany
| | - Piotr M Kowalski
- Theory and Computation of Energy Materials (IEK-13), Institute of Energy and Climate Research, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany
- Jülich Aachen Research Alliance JARA Energy & Center for Simulation and Data Science (CSD), 52425 Jülich, Germany
| | - Rüdiger-A Eichel
- Fundamental Electrochemistry (IEK-9), Institute of Energy and Climate Research, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany.
- Institute of Physical Chemistry, RWTH Aachen University, 52062 Aachen, Germany
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28
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Wang F, Ju L, Wu B, Li S, Peng J, Chen Y, Getaye Sendeku M, Wang K, Cai Y, Yi J, Yang Y, Wang Z, Sun X. Effect of Intrinsic Ferroelectric Phase Transition on Hydrogen Evolution Electrocatalysis. Angew Chem Int Ed Engl 2024; 63:e202402033. [PMID: 38407516 DOI: 10.1002/anie.202402033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
Heterogeneous electrocatalysis closely relies on the electronic structure of the catalytic materials. The ferroelectric-to-paraelectric phase transition of the materials also involves a change in the state of electrons that could impact the electrocatalytic activity, but such correlation remains unexplored. Here, we demonstrate experimentally and theoretically that the intrinsic electrocatalytic activity could be regulated as exampled by hydrogen evolution reaction catalysis over two-dimensional ferroelectric CuInP2S6. The obvious discontinuity in the overpotential and apparent activation energy values for CuInP2S6 electrode are illustrated during the ferroelectric-to-paraelectric phase transition caused by copper displacement around Tc point (318 K), revealing the ferroelectro-catalytic effect on thermodynamics and kinetics of electrocatalysis. When loading Pt single atom on the CuInP2S6, the paraelectric phase one showed an improved hydrogen evolution activity with smaller apparent activation energy over the ferroelectric phase counterpart. This is attributed to the copper hopping between two sulfur planes, which alternate between strong and weak H adsorption at the Pt sites to simultaneously promote H+ reactant adsorption and H2 product desorption.
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Affiliation(s)
- Fengmei Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Lin Ju
- School of Physics and Electric Engineering, Anyang Normal University, Anyang, 455000, P. R. China
| | - Binglan Wu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Shuhui Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Jian Peng
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2522, Australia
| | - Yetao Chen
- School of Electronic Science and Engineering, Fujian Key Laboratory of Ultrafast Laser Technology and Applications, Xiamen University, Xiamen, 361005, P. R. China
| | - Marshet Getaye Sendeku
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Kairui Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yuchen Cai
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Jun Yi
- School of Electronic Science and Engineering, Fujian Key Laboratory of Ultrafast Laser Technology and Applications, Xiamen University, Xiamen, 361005, P. R. China
| | - Ying Yang
- Shaanxi Provincial Key Laboratory of Electroanalytical Chemistry, Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P.R. China
| | - Zhenxing Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100029, P. R. China
| | - Xiaoming Sun
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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29
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Peng X, Zhang M, Zhang T, Zhou Y, Ni J, Wang X, Jiang L. Single-atom and cluster catalysts for thermocatalytic ammonia synthesis at mild conditions. Chem Sci 2024; 15:5897-5915. [PMID: 38665515 PMCID: PMC11041362 DOI: 10.1039/d3sc06998b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 03/07/2024] [Indexed: 04/28/2024] Open
Abstract
Ammonia (NH3) is closely related to the fields of food and energy that humans depend on. The exploitation of advanced catalysts for NH3 synthesis has been a research hotspot for more than one hundred years. Previous studies have shown that the Ru B5 sites (step sites on the Ru (0001) surface uniquely arranged with five Ru atoms) and Fe C7 sites (iron atoms with seven nearest neighbors) over nanoparticle catalysts are highly reactive for N2-to-NH3 conversion. In recent years, single-atom and cluster catalysts, where the B5 sites and C7 sites are absent, have emerged as promising catalysts for efficient NH3 synthesis. In this review, we focus on the recent advances in single-atom and cluster catalysts, including single-atom catalysts (SACs), single-cluster catalysts (SCCs), and bimetallic-cluster catalysts (BCCs), for thermocatalytic NH3 synthesis at mild conditions. In addition, we discussed and summarized the unique structural properties and reaction performance as well as reaction mechanisms over single-atom and cluster catalysts in comparison with traditional nanoparticle catalysts. Finally, the challenges and prospects in the rational design of efficient single-atom and cluster catalysts for NH3 synthesis were provided.
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Affiliation(s)
- Xuanbei Peng
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
- Qingyuan Innovat Lab Quanzhou Fujian 362801 China
| | - Mingyuan Zhang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
| | - Tianhua Zhang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
| | - Yanliang Zhou
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
- Qingyuan Innovat Lab Quanzhou Fujian 362801 China
| | - Jun Ni
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
| | - Xiuyun Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
- Qingyuan Innovat Lab Quanzhou Fujian 362801 China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University Fuzhou Fujian 350002 China
- Qingyuan Innovat Lab Quanzhou Fujian 362801 China
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30
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Almithn A. Phosphorus Modification of Iron: Mechanistic Insights into Ammonia Synthesis on Fe 2P Catalyst. Molecules 2024; 29:1894. [PMID: 38675713 PMCID: PMC11054198 DOI: 10.3390/molecules29081894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/15/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024] Open
Abstract
Ammonia (NH3) is a critical chemical for fertilizer production and a potential future energy carrier within a sustainable hydrogen economy. The industrial Haber-Bosch process, though effective, operates under harsh conditions due to the high thermodynamic stability of the nitrogen molecule (N2). This motivates the search for alternative catalysts that facilitate ammonia synthesis at milder temperatures and pressures. Theoretical and experimental studies suggest that circumventing the trade-off between N-N activation and subsequent NHx hydrogenation, governed by the Brønsted-Evans-Polanyi (BEP) relationship, is key to achieving this goal. Recent studies indicate metal phosphides as promising catalyst materials. In this work, a comprehensive density functional theory (DFT) study comparing the mechanisms and potential reaction pathways for ammonia synthesis on Fe(110) and Fe2P(001) is presented. The results reveal substantial differences in the adsorption strengths of NHx intermediates, with Fe2P(001) exhibiting weaker binding compared to Fe(110). For N-N bond cleavage, multiple competing pathways become viable on Fe2P(001), including routes involving the pre-hydrogenation of adsorbed N2 (e.g., through *NNH*). Analysis of DFT-derived turnover rates as a function of hydrogen pressure (H2) highlights the increased importance of these hydrogenated intermediates on Fe2P(001) compared to Fe(110) where direct N2 dissociation dominates. These findings suggest that phosphorus incorporation modifies the ammonia synthesis mechanism, offering alternative pathways that may circumvent the limitations of traditional transition metal catalysts. This work provides theoretical insights for the rational design of Fe-based catalysts and motivates further exploration of phosphide-based materials for sustainable ammonia production.
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Affiliation(s)
- Abdulrahman Almithn
- Department of Chemical Engineering, College of Engineering, King Faisal University, Al Ahsa 31982, Saudi Arabia
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31
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Xu G, Sun L, Wang T. Demagnetizing Ferromagnetic Catalysts to the Sabatier Optimal of Haber-Bosch Process. JACS AU 2024; 4:1405-1412. [PMID: 38665674 PMCID: PMC11040701 DOI: 10.1021/jacsau.3c00785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 04/28/2024]
Abstract
Achieving the Sabatier optimal of a chemical reaction has been the central topic in heterogeneous catalysis for a century. However, this ultimate goal was greatly hindered in previous catalyst design strategies since the active sites indeed changed. Fortunately, the magneto-catalytic effect (MCE) provides a promising solution to this long-standing challenge. Recent research suggests that the performance of ferromagnetic catalysts is capable to be promoted without changing its chemical structure. Herein, we use time-dependent density functional perturbation theory (TDDFPT) calculations to elucidate that a partially demagnetized (DM) ferromagnet could be a Sabatier optimal catalyst. Using ammonia synthesis as the model reaction, we determined the activity of Cobalt at each DM state by including the magnetic thermal excitations via magnon analysis, making the 55% DM Co to the genuine Sabatier optimal. As an essential but underexcavated phenomenon in heterogeneous catalysis, the MCE will open a new avenue to design high-performance catalysts.
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Affiliation(s)
- Gaomou Xu
- Center
of Artificial Photosynthesis for Solar Fuels and Department of Chemistry,
School of Science and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Institute
of Natural Sciences, Westlake Institute
for Advanced Study, 18
Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
| | - Licheng Sun
- Center
of Artificial Photosynthesis for Solar Fuels and Department of Chemistry,
School of Science and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Institute
of Natural Sciences, Westlake Institute
for Advanced Study, 18
Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Division
of Solar Energy Conversion and Catalysis at Westlake University, Zhejiang Baima Lake Laboratory, Hangzhou 310000, Zhejiang Province, China
| | - Tao Wang
- Center
of Artificial Photosynthesis for Solar Fuels and Department of Chemistry,
School of Science and Research Center for Industries of the Future, Westlake University, 600 Dunyu Road, Hangzhou 310030, Zhejiang Province, China
- Institute
of Natural Sciences, Westlake Institute
for Advanced Study, 18
Shilongshan Road, Hangzhou 310024, Zhejiang Province, China
- Division
of Solar Energy Conversion and Catalysis at Westlake University, Zhejiang Baima Lake Laboratory, Hangzhou 310000, Zhejiang Province, China
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Cho H, Jin A, Kim SJ, Kwon Y, Lee E, Shin JJ, Kim BH. Conversion of Polyethylene to Low-Molecular-Weight Oil Products at Moderate Temperatures Using Nickel/Zeolite Nanocatalysts. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1863. [PMID: 38673220 PMCID: PMC11051393 DOI: 10.3390/ma17081863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
Polyethylene (PE) is the most widely used plastic, known for its high mechanical strength and affordability, rendering it responsible for ~70% of packaging waste and contributing to microplastic pollution. The cleavage of the carbon chain can induce the conversion of PE wastes into low-molecular-weight hydrocarbons, such as petroleum oils, waxes, and natural gases, but the thermal degradation of PE is challenging and requires high temperatures exceeding 400 °C due to its lack of specific chemical groups. Herein, we prepare metal/zeolite nanocatalysts by incorporating small-sized nickel nanoparticles into zeolite to lower the degradation temperature of PE. With the use of nanocatalysts, the degradation temperature can be lowered to 350 °C under hydrogen conditions, compared to the 400 °C required for non-catalytic pyrolysis. The metal components of the catalysts facilitate hydrogen adsorption, while the zeolite components stabilize the intermediate radicals or carbocations formed during the degradation process. The successful pyrolysis of PE at low temperatures yields valuable low-molecular-weight oil products, offering a promising pathway for the upcycling of PE into higher value-added products.
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Affiliation(s)
- Hyungjin Cho
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
| | - Ahyeon Jin
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
| | - Sun Ju Kim
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
| | - Youngmin Kwon
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
| | - Eunseo Lee
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
| | - Jaeman J. Shin
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
- Department of Green Chemistry and Materials Engineering, Soongsil University, Seoul 06978, Republic of Korea
| | - Byung Hyo Kim
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea; (H.C.); (J.J.S.)
- Department of Green Chemistry and Materials Engineering, Soongsil University, Seoul 06978, Republic of Korea
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Malone W, von der Heyde J, Kara A. Accessing the usefulness of atomic adsorption configurations in predicting the adsorption properties of molecules with machine learning. Phys Chem Chem Phys 2024; 26:11676-11685. [PMID: 38563401 DOI: 10.1039/d3cp06312g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
We present a systematic study into the effect of adding atomic adsorption configurations into the training and validation dataset for a neural network's predictions of the adsorption energies of small molecules on single metal and bimetallic, single crystal surfaces. Specifically, we examine the efficacy of models trained with and without H and X atomic adsorption configurations, where X is C, N, or O, to predict XHn adsorption energies. In addition, we compare our machine learning models to traditional simple scaling relationships. We find that models trained with the atomic adsorption configurations outperform models trained with only molecular adsorption configurations, with as much as a 0.37 eV decrease in the MAE. We find that models trained with the atomic adsorption configurations slightly outperform traditional scaling relationships. In general, these results suggest it may be possible to vastly reduce the number of adsorption configurations one needs for training and validation datasets by supplementing said data with the adsorption configurations of composite atoms or smaller molecular fragments.
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Affiliation(s)
- Walter Malone
- Department of Physics, Tuskegee University, 1200 W. Montgomery Rd., Tuskegee, AL 36088, USA.
| | - Johnathan von der Heyde
- Department of Physics, University of Central Florida, 4000 Central Florida Blvd., Orlando, Florida, 32816, USA
| | - Abdelkader Kara
- Department of Physics, University of Central Florida, 4000 Central Florida Blvd., Orlando, Florida, 32816, USA
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Shafiq F, Yang L, Zhu W. Recent progress in the advanced strategies, rational design, and engineering of electrocatalysts for nitrate reduction toward ammonia. Phys Chem Chem Phys 2024; 26:11208-11216. [PMID: 38564180 DOI: 10.1039/d4cp00659c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Ammonia is a valuable feedstock for most chemicals, pharmaceuticals, and fertilizer products. It is a promising carbon-free energy source. Under severe experimental circumstances (high temperature and high pressure), ammonia is manufactured industrially using the standard Haber-Bosch process. This process uses a lot of energy and emits a huge amount of CO2 into the environment. One method that is seen to be promising and could eventually replace the Haber-Bosch process is the electrocatalytic production of ammonia. However, in ambient conditions, the cleavage of the nitrogen molecule is exceedingly difficult. As a result, the yield of ammonia remains modest and the study's scope is still restricted to the lab. When the catalytic performance is significantly increased, nitrate and nitrite contaminations in water systems can be effectively removed and simultaneously transformed into energy sources if nitrites or nitrates are employed as nitrogen sources instead of nitrogen gas. This may become a new substitute for the synthesis of ammonia, but nitrate and nitrite reduction are not getting enough attention. In this review, we discuss the performance of the electrocatalytic nitrate reduction reaction, which includes cycling stability, reactivity, selectivity, and faradaic efficiency. Following this summary, we look into the crucial elements, the rate-determining step, and the reaction mechanisms that govern the performance of the nitrate reduction reaction. In order to support the practical use of the electrocatalytic nitrate reduction reaction, we finally provided a summary of the challenges and future directions guiding the design of efficient catalyst and reaction systems.
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Affiliation(s)
- Faiza Shafiq
- Institute for Computation in Molecular and Materials Science, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Lei Yang
- Institute for Computation in Molecular and Materials Science, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Weihua Zhu
- Institute for Computation in Molecular and Materials Science, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Butenko VR, Komova OV, Simagina VI, Lipatnikova IL, Ozerova AM, Danilova NA, Rogov VA, Odegova GV, Bulavchenko OA, Chesalov YA, Netskina OV. Co and Co 3O 4 in the Hydrolysis of Boron-Containing Hydrides: H 2O Activation on the Metal and Oxide Active Centers. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1794. [PMID: 38673151 PMCID: PMC11050988 DOI: 10.3390/ma17081794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 03/31/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
This work focuses on the comparison of H2 evolution in the hydrolysis of boron-containing hydrides (NaBH4, NH3BH3, and (CH2NH2BH3)2) over the Co metal catalyst and the Co3O4-based catalysts. The Co3O4 catalysts were activated in the reaction medium, and a small amount of CuO was added to activate Co3O4 under the action of weaker reducers (NH3BH3, (CH2NH2BH3)2). The high activity of Co3O4 has been previously associated with its reduced states (nanosized CoBn). The performed DFT modeling shows that activating water on the metal-like surface requires overcoming a higher energy barrier compared to hydride activation. The novelty of this study lies in its focus on understanding the impact of the remaining cobalt oxide phase. The XRD, TPR H2, TEM, Raman, and ATR FTIR confirm the formation of oxygen vacancies in the Co3O4 structure in the reaction medium, which increases the amount of adsorbed water. The kinetic isotopic effect measurements in D2O, as well as DFT modeling, reveal differences in water activation between Co and Co3O4-based catalysts. It can be assumed that the oxide phase serves not only as a precursor and support for the reduced nanosized cobalt active component but also as a key catalyst component that improves water activation.
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Affiliation(s)
- Vladislav R. Butenko
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Oksana V. Komova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Valentina I. Simagina
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Inna L. Lipatnikova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Anna M. Ozerova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Natalya A. Danilova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
| | - Vladimir A. Rogov
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
| | - Galina V. Odegova
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Olga A. Bulavchenko
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Yuriy A. Chesalov
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
| | - Olga V. Netskina
- Boreskov Institute of Catalysis SB RAS, 5 Akademika Lavrentieva Ave., Novosibirsk 630090, Russia; (V.R.B.); (V.I.S.); (I.L.L.); (A.M.O.); (N.A.D.); (V.A.R.); (G.V.O.); (O.A.B.); (Y.A.C.); (O.V.N.)
- Department of Natural Sciences, Novosibirsk State University, 1 Pirogova Str., Novosibirsk 630090, Russia
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36
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Deng H, Deng D, Jin S, Tian Z, Yang LM. Unraveling the Activity and Mechanism of TM@g-C 4N 3 Electrocatalysts in the Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:17617-17625. [PMID: 38530989 DOI: 10.1021/acsami.4c01342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
In this work, a high-throughput screening strategy and density functional theory (DFT) are jointly employed to identify high-performance TM@g-C4N3 (TM = 3d, 4d, 5d transition metals) single-atom catalysts (SACs) for the oxygen reduction reaction (ORR). Comprehensive studies demonstrated that Cu@, Zn@, and Ag@g-C4N3 show high ORR catalytic activities under both acidic and alkaline conditions with favorable overpotentials (ηORR) of 0.70, 0.89, and 0.89 V, respectively; among them, Cu@g-C4N3 is the best candidate. The ORR follows a four-electron mechanism with the final product H2O/OH-. Cu@, Zn@, and Ag@g-C4N3 catalysts also exhibit good thermal (500 K) and electrochemical (0.93-3.14 V) stabilities. Cu@, Zn@, and Ag@g-C4N3 demonstrate superior activities with low ηORR due to its moderate adsorption strength of *OH. The ηORR and the Gibbs free energy changes of *OH (ΔG4(acidic)/ΔG4(alkaline)) resemble a volcano-type relationship under acidic/alkaline conditions, respectively. Additionally, the O-O bond length in *OOH emerged as an effective structural descriptor for rapidly identifying the promising electrocatalysts. This research provides valuable insights into the origin of the ORR activity on TM@g-C4N3 and offers useful guidance for the efficient exploration of high-performance catalyst candidates.
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Affiliation(s)
- Hao Deng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dan Deng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shangbin Jin
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Zhihong Tian
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, PR China
| | - Li-Ming Yang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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37
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Vijay S, H Heenen H, Singh AR, Chan K, Voss J. Number of sites-based solver for determining coverages from steady-state mean-field micro-kinetic models. J Comput Chem 2024; 45:546-551. [PMID: 38009447 DOI: 10.1002/jcc.27263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/28/2023]
Abstract
Kinetic models parameterized by ab-initio calculations have led to significant improvements in understanding chemical reactions in heterogeneous catalysis. These studies have been facilitated by implementations which determine steady-state coverages and rates of mean-field micro-kinetic models. As implemented in the open-source kinetic modeling program, CatMAP, the conventional solution strategy is to use a root-finding algorithm to determine the coverage of all intermediates through the steady-state expressions, constraining all coverages to be non-negative and to properly sum to unity. Though intuitive, this root-finding strategy causes issues with convergence to solution due to these imposed constraints. In this work, we avoid explicitly imposing these constraints, solving the mean-field steady-state micro-kinetic model in the space of number of sites instead of solving it in the space of coverages. We transform the constrained root-finding problem to an unconstrained least-squares minimization problem, leading to significantly improved convergence in solving micro-kinetic models and thus enabling the efficient study of more complex catalytic reactions.
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Affiliation(s)
- Sudarshan Vijay
- CatTheory, Department of Physics, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Hendrik H Heenen
- CatTheory, Department of Physics, Technical University of Denmark, Kgs. Lyngby, Denmark
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany
| | - Aayush R Singh
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Karen Chan
- CatTheory, Department of Physics, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Johannes Voss
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California, USA
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38
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Yan Z, Guo S, Tan Z, Wang L, Li G, Tang M, Feng Z, Yuan X, Wang Y, Cao B. Research Advances of Non-Noble Metal Catalysts for Oxygen Evolution Reaction in Acid. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1637. [PMID: 38612151 PMCID: PMC11012601 DOI: 10.3390/ma17071637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024]
Abstract
Water splitting is an important way to obtain hydrogen applied in clean energy, which mainly consists of two half-reactions: hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). However, the kinetics of the OER of water splitting, which occurs at the anode, is slow and inefficient, especially in acid. Currently, the main OER catalysts are still based on noble metals, such as Ir and Ru, which are the main active components. Hence, the exploration of new OER catalysts with low cost, high activity, and stability has become a key issue in the research of electrolytic water hydrogen production technology. In this paper, the reaction mechanism of OER in acid was discussed and summarized, and the main methods to improve the activity and stability of non-noble metal OER catalysts were summarized and categorized. Finally, the future prospects of OER catalysts in acid were made to provide a little reference idea for the development of advanced OER catalysts in acid in the future.
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Affiliation(s)
- Zhenwei Yan
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Shuaihui Guo
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Zhaojun Tan
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Lijun Wang
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Gang Li
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Mingqi Tang
- School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (M.T.); (Z.F.)
| | - Zaiqiang Feng
- School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (M.T.); (Z.F.)
| | - Xianjie Yuan
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Yingjia Wang
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
| | - Bin Cao
- School of Mechanical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450011, China; (S.G.); (Z.T.); (G.L.); (X.Y.); (Y.W.); (B.C.)
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39
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Hasan MH, McCrum IT. pKa as a Predictive Descriptor for Electrochemical Anion Adsorption. Angew Chem Int Ed Engl 2024; 63:e202313580. [PMID: 38340075 DOI: 10.1002/anie.202313580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/12/2024]
Abstract
The adsorption of anions onto metal surfaces is important in many applications including effective (electro)catalyst design, metal surface modification, and contaminant removal in wastewater treatment. In electrocatalysis, anions can be both reactive intermediates or site-blocking spectators, where their adsorption strength therefore dictates the rate of reaction. In this work, we have measured the adsorption energy of a series of carboxylic acids on a Pt (111) single-crystal electrode surface from aqueous solution. We find that the adsorption strength of the carboxylate anion is linearly correlated with its acid-dissociation constant (pKa) and therefore the heterolytic O-H bond dissociation strength in solution. Using density functional theory modeling, we split the anion adsorption energy into a sum of the adsorption energy and electron affinity of a neutral (carboxyl) radical. Surprisingly, the adsorption energy of the carboxyl radicals are similar and therefore the large difference in electron affinity is what dictates anion adsorption strength; the greater the cost in energy to remove the electron from the anion upon adsorption, the weaker its binding. Therefore, at least within a class of anions with similar structure and surface binding atoms, both electron affinity and acidity are predictive descriptors of adsorption strength.
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Affiliation(s)
- Mohammad H Hasan
- Department of Chemical and Biomolecular Engineering, Clarkson University, 8 Clarkson Ave., Potsdam, NY 13699
| | - Ian T McCrum
- Department of Chemical and Biomolecular Engineering, Clarkson University, 8 Clarkson Ave., Potsdam, NY 13699
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Qu Z, Zhou R, Sun J, Gao Y, Li Z, Zhang T, Zhou R, Liu D, Tu X, Cullen P, Ostrikov KK. Plasma-Assisted Sustainable Nitrogen-to-Ammonia Fixation: Mixed-phase, Synergistic Processes and Mechanisms. CHEMSUSCHEM 2024; 17:e202300783. [PMID: 37994281 DOI: 10.1002/cssc.202300783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 11/24/2023]
Abstract
Ammonia plays a crucial role in industry and agriculture worldwide, but traditional industrial ammonia production methods are energy-intensive and negatively impact the environment. Ammonia synthesis using low-temperature plasma technology has gained traction in the pursuit of environment-benign and cost-effective methods for producing green ammonia. This Review discusses the recent advances in low-temperature plasma-assisted ammonia synthesis, focusing on three main routes: N2+H2 plasma-only, N2+H2O plasma-only, and plasma coupled with other technologies. The reaction pathways involved in the plasma-assisted ammonia synthesis, as well as the process parameters, including the optimum catalyst types and discharge schemes, are examined. Building upon the current research status, the challenges and research opportunities in the plasma-assisted ammonia synthesis processes are outlined. The article concludes with the outlook for the future development of the plasma-assisted ammonia synthesis technology in real-life industrial applications.
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Affiliation(s)
- Zhongping Qu
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Renwu Zhou
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Jing Sun
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Yuting Gao
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Zhuo Li
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Tianqi Zhang
- School of Chemical and Biomolecular Engineering, University of Sydney, New South Wales, Darlington, 2008, Australia
| | - Rusen Zhou
- School of Chemical and Biomolecular Engineering, University of Sydney, New South Wales, Darlington, 2008, Australia
| | - Dingxin Liu
- State Key Laboratory of Electrical Insulation and Power Equipment, Centre for Plasma Biomedicine, Xi'an Jiaotong University, Xi An Shi, Xi'an, 710049, P. R. China
| | - Xin Tu
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, L69 3GJ, United Kingdom
| | - Patrick Cullen
- School of Chemical and Biomolecular Engineering, University of Sydney, New South Wales, Darlington, 2008, Australia
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
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41
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Yang XJ, Yang CC, Jiang Q. DFT Study of N-modified Co 3Mo 3C Electrocatalyst with Separated Active Sites for Enhanced Ammonia Oxidation. CHEMSUSCHEM 2024; 17:e202301535. [PMID: 37997528 DOI: 10.1002/cssc.202301535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 11/25/2023]
Abstract
Since the facile oxidation of ammonia is one key for its utilization as a zero-carbon fuel in a direct ammonia fuel cell, developing the ammonia oxidation reaction (AOR) catalysts with cost-effective and higher activity is urgently required. However, the catalytic activity of AOR is limited by the scaling relationship of the intermediate adsorption. Based on the density functional theory, the N-modified Co3Mo3C with separated active sites of NH3 dehydrogenation and N-N coupling has been designed and investigated, which is a promising strategy to circumvent the scaling relationship, achieving improved AOR catalytic performance with a lower theoretical overpotential of 0.59 V under fast reaction kinetics condition. The calculation results show that the hollow site (Co-Mo-Mo and Co-Co-Mo) and Co site in N-modified Co3Mo3C play essential roles in NH3 dehydrogenation and N-N coupling, respectively. This work not only benefits for understanding the mechanism of AOR, but also provides a fundamental guidance for rational design of AOR catalysts.
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Affiliation(s)
- Xue Jing Yang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
| | - Chun Cheng Yang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education and School of Materials Science and Engineering, Jilin University, 130022, Changchun, China
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42
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Chen X, Lv H, Wu X. Electrocatalytic Mechanism and Sabatier Principle in C 2N-Supported Atomically Dispersed Catalysts for the Sulfur Reduction Reaction in Lithium-Sulfur Batteries. J Phys Chem Lett 2024:3425-3433. [PMID: 38506831 DOI: 10.1021/acs.jpclett.4c00474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The sluggish kinetics of the sulfur reduction reaction (SRR) impedes the practical application of lithium-sulfur batteries (LSBs). Electrocatalysts are necessary to expedite the conversion of polysulfides. Here, we systematically investigate the chemical mechanisms and size dependence of catalytic activities toward the SRR from Li2S4 to Li2S on single-, double-, and triple-atom catalysts supported on C2N (Mn@C2N, where M is a 3d transitional metal and n = 1-3) as model systems by using first-principles calculations and a comprehensive electrocatalytic model. Our results reveal that the adsorption strength of the LiS• intermediate is identified as an optimal descriptor for catalytic activity. M1@C2N exhibits superior stability and exceptional activity compared to those of the other two catalyst types. Cu1@C2N exhibits the lowest overpotential of 0.426 V. Li embedding or a prelithiation strategy verifies the therein Sabatier principle. This work emphasizes the precise control of the active site structure and microenvironment in catalytic SRR and offers guidance for the design of electrocatalysts for metal-sulfur batteries.
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Affiliation(s)
- Xingjia Chen
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Haifeng Lv
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaojun Wu
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
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43
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Pei MJ, Shuai YK, Gao X, Chen JC, Liu Y, Yan W, Zhang J. Ni and Co Active Site Transition and Competition in Fluorine-Doped NiCo(OH) 2 LDH Electrocatalysts for Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400139. [PMID: 38497843 DOI: 10.1002/smll.202400139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/25/2024] [Indexed: 03/19/2024]
Abstract
The oxygen evolution reaction (OER) performance of NiCo LDH electrocatalysts can be improved through fluorine doping. The roles of Ni and Co active sites in such catalysts remain ambiguous and controversial. In addressing the issue, this study draws upon the molecular orbital theory and proposes the active center competitive mechanism between Ni and Co. The doped F-atoms can directly impact the valence state of metal atoms or exert an indirect influence through the dehydrogenation, thereby modulating the active center. As the F-atoms are progressively aggregate, the eg orbitals of Ni and Co transition from e2 g to e1 g , and subsequently to e0 g . The corresponding valence state elevates from +2 to +3, and then to +4, signifying an initial increase followed by a subsequent decrease in the electrocatalytic performance. Furthermore, a series of F-NiCo LDH catalysts are synthesized to verify the eg orbital occupancy analysis, and the catalytic OER overpotentials are 303, 243, 240, and 246 mV at the current density of 10 mA cm-2 , respectively, which coincides well with the theoretical prediction. This investigation not only provides novel mechanistic insights into the transition and competition of Ni and Co in F-NiCo LDH catalysts but also establishes a foundation for the design of high-performance catalysts.
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Affiliation(s)
- Mao-Jun Pei
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yan-Kang Shuai
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Xiang Gao
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Jia-Cheng Chen
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yao Liu
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Wei Yan
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Jiujun Zhang
- Institute for New Energy Materials and Engineering, College of Materials Science & Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
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44
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Hao TT, Guan SJ, Zhang D, Zhang P, Cao Y, Hou J, Suen NT. Correlation between d Electrons and the Sweet Spot for the Hydrogen Evolution Reaction: Is Platinum Always the Best Electrocatalyst? Inorg Chem 2024; 63:5076-5082. [PMID: 38447153 DOI: 10.1021/acs.inorgchem.3c04601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Herein, two Laves intermetallic series, ZrCo1.75M0.25 and NbCo1.75M0.25 (M = Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt), were synthesized, and their hydrogen evolution reaction (HER) activities were examined to reveal the influence of d electrons to the corresponding HER activities. Owing to the different electronegativity between Zr and Nb (χZr = 1.33; χNb = 1.60), Co and/or M elements receive more electrons in ZrCo1.75M0.25 than that of the Nb one. This leads to the overall weak H adsorption energy (ΔGHad) of ZrCo1.75M0.25 series compared to that of NbCo1.75M0.25 and rationalizes well the superior HER activity of the Rh member compared to that of the Pt one in the ZrCo1.75M0.25 series. Under industrial conditions (333 K, 6.0 M KOH), ZrCo1.75Rh0.25 only requires an overpotential of 110 mV to reach the current density of 500 mA/cm2 and can be operated at high current density over 400 h. This work demonstrates that with a proper combination between elements in intermetallic phases, one can manipulate d electrons of the active metal to be closer to the sweet spot (ΔGHad = 0). The Pt member may no longer exhibit the best HER activity in series, and all elements exhibit the potential to outperform the Pt member in the HER with careful control of the d electron population.
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Affiliation(s)
- Tong Tong Hao
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Si-Jia Guan
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Dong Zhang
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Peng Zhang
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
| | - Yu Cao
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Jianhua Hou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Nian-Tzu Suen
- College of Chemistry & Chemical Engineering, Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou 225002, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
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45
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Wang M, Xiong Q, Wang M, Lewis NHC, Ying D, Yan G, Hoenig E, Han Y, Lee OS, Peng G, Zhou H, Schatz GC, Liu C. Lanthanide transport in angstrom-scale MoS 2-based two-dimensional channels. SCIENCE ADVANCES 2024; 10:eadh1330. [PMID: 38489373 PMCID: PMC10942105 DOI: 10.1126/sciadv.adh1330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 02/09/2024] [Indexed: 03/17/2024]
Abstract
Rare earth elements (REEs), critical to modern industry, are difficult to separate and purify, given their similar physicochemical properties originating from the lanthanide contraction. Here, we systematically study the transport of lanthanide ions (Ln3+) in artificially confined angstrom-scale two-dimensional channels using MoS2-based building blocks in an aqueous environment. The results show that the uptake and permeability of Ln3+ assume a well-defined volcano shape peaked at Sm3+. This transport behavior is rooted from the tradeoff between the barrier for dehydration and the strength of interactions of lanthanide ions in the confinement channels, reminiscent of the Sabatier principle. Molecular dynamics simulations reveal that Sm3+, with moderate hydration free energy and intermediate affinity for channel interaction, exhibit the smallest dehydration degree, consequently resulting in the highest permeability. Our work not only highlights the distinct mass transport properties under extreme confinement but also demonstrates the potential of dialing confinement dimension and chemistry for greener REEs separation.
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Affiliation(s)
- Mingzhan Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Qinsi Xiong
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Maoyu Wang
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Nicholas H. C. Lewis
- Department of Chemistry, Institute for Biophysical Dynamics, and James Franck Institute, University of Chicago, Chicago, IL 60637, USA
| | - Dongchen Ying
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Gangbin Yan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Eli Hoenig
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Yu Han
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - One-Sun Lee
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Guiming Peng
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Hua Zhou
- X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - George C. Schatz
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Chong Liu
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
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46
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Huang X, Xu H. Regulating Excess Electrons in Reducible Metal Oxides for Enhanced Oxygen Evolution Reaction Activity: A Mini-Review. Chemphyschem 2024; 25:e202400081. [PMID: 38303551 DOI: 10.1002/cphc.202400081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 01/31/2024] [Indexed: 02/03/2024]
Abstract
Identifying a universal activity descriptor for metal oxides, akin to the d-band center for transition metals, remains a significant challenge in catalyst design, largely due to the intricate electronic structures of metal oxides. This review highlights a major advancement in formulating the number of excess electrons (NEE) as an activity descriptor for oxygen evolution reaction (OER) on reducible metal oxide surfaces. We elaborate on the quantitative relationship between NEE and the adsorption properties of OER intermediates, and unveil the decisive role of the octet rule on the OER performance of these oxides. This insight provides a robust theoretical basis for designing effective OER catalysts. Moreover, we discuss critical experimental evidence supporting this theory and summarize recent advances in employing NEE as a guiding principle for developing highly efficient OER catalysts experimentally.
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Affiliation(s)
- Xiang Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area, Guangdong, Shenzhen, 518045, China
| | - Hu Xu
- Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area, Guangdong, Shenzhen, 518045, China
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47
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Chirila A, Hu Y, Linehan JC, Dixon DA, Wiedner ES. Thermodynamic and Kinetic Activity Descriptors for the Catalytic Hydrogenation of Ketones. J Am Chem Soc 2024; 146:6866-6879. [PMID: 38437011 DOI: 10.1021/jacs.3c13876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Activity descriptors are a powerful tool for the design of catalysts that can efficiently utilize H2 with minimal energy losses. In this study, we develop the use of hydricity and H- self-exchange rates as thermodynamic and kinetic descriptors for the hydrogenation of ketones by molecular catalysts. Two complexes with known hydricity, HRh(dmpe)2 and HCo(dmpe)2, were investigated for the catalytic hydrogenation of ketones under mild conditions (1.5 atm and 25 °C). The rhodium catalyst proved to be an efficient catalyst for a wide range of ketones, whereas the cobalt catalyst could only hydrogenate electron-deficient ketones. Using a combination of experiment and electronic structure theory, thermodynamic hydricity values were established for 46 alkoxide/ketone pairs in both acetonitrile and tetrahydrofuran solvents. Through comparison of the hydricities of the catalysts and substrates, it was determined that catalysis was observed only for catalyst/ketone pairs with an exergonic H- transfer step. Mechanistic studies revealed that H- transfer was the rate-limiting step for catalysis, allowing for the experimental and computation construction of linear free-energy relationships (LFERs) for H- transfer. Further analysis revealed that the LFERs could be reproduced using Marcus theory, in which the H- self-exchange rates for the HRh/Rh+ and ketone/alkoxide pairs were used to predict the experimentally measured catalytic barriers within 2 kcal mol-1. These studies significantly expand the scope of catalytic reactions that can be analyzed with a thermodynamic hydricity descriptor and firmly establish Marcus theory as a valid approach to develop kinetic descriptors for designing catalysts for H- transfer reactions.
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Affiliation(s)
- Andrei Chirila
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yiqin Hu
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - John C Linehan
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Eric S Wiedner
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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48
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Zhou J, Yang S, Zhang Y, Ren JC, Liu W. Effective Descriptor for Screening Single-Molecule Conductance Switches. J Am Chem Soc 2024; 146:6962-6973. [PMID: 38426449 DOI: 10.1021/jacs.3c14655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The adsorption-type molecular switch exhibits bistable states with an equivalently long lifetime at the organic/inorganic interface, promising reliable switching behavior and superior assembly ability in the electronic circuits at the molecular scale. However, the number of reported adsorption-type molecular switches is currently less than 10, and exploring these molecular switches poses a formidable challenge due to the intricate interplay occurring at the interface. To address this challenge, we have developed a model enabling the identification of diverse molecular switches on metal surfaces based on easily accessible physical characteristics. These characteristics primarily include the metal valency electron concentration, the work function of metal surfaces, and the electronegativity difference of molecules. Using this model, we identified 56 new molecular switches. Employing the gradient descent algorithm and statistical linear discriminant analysis, we constructed an explicit descriptor that establishes a relationship between the interfacial structure and chemical environment and the stability of molecular switches. The model's accuracy was validated through density functional theory calculations, achieving a 90% accuracy for aromatic molecular switches. The conductive switching behaviors were further confirmed by nonequilibrium Green's function transport calculations.
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Affiliation(s)
- Junjun Zhou
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Sha Yang
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Yirong Zhang
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Ji-Chang Ren
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
| | - Wei Liu
- Nano and Heterogeneous Materials Center, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
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49
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Wang S, Kasarapu SSK, Clough PT. High-Throughput Screening of Sulfur-Resistant Catalysts for Steam Methane Reforming Using Machine Learning and Microkinetic Modeling. ACS OMEGA 2024; 9:12184-12194. [PMID: 38496975 PMCID: PMC10938427 DOI: 10.1021/acsomega.4c00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/31/2024] [Accepted: 02/21/2024] [Indexed: 03/19/2024]
Abstract
The catalytic activity of bimetallic catalysts for the steam methane reforming (SMR) reaction was extensively studied previously. However, the performance of these materials in the presence of sulfur-containing species is yet to be investigated. In this study, we propose a novel process aided by machine learning (ML) and microkinetic modeling for the rapid screening of sulfur-resistant bimetallic catalysts. First, various ML models were developed to predict atomic adsorption energies (C, H, O, and S) on bimetallic surfaces. Easily accessible physical and chemical properties of the metals and adsorbates were used as input features. The Ensemble learning, artificial neural network, and support vector regression models achieved the best performance with R2 values of 0.74, 0.71, and 0.70, respectively. A microkinetic model was then built based on the elementary steps of the SMR reaction. Finally, the microkinetic model, together with the atomic adsorption energies predicted by the Ensemble model, were used to screen over 500 bimetallic materials. Four Ge-based alloys (Ge3Cu1, Ge3Ni1, Ge3Co1, and Ge3Fe1) and the Ni3Cu1 alloy were identified as promising and cost-effective sulfur-resistant catalysts.
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Affiliation(s)
- Siqi Wang
- Energy and Sustainability
Theme, Cranfield University, Cranfield, Bedfordshire MK43 0AL, U.K.
| | | | - Peter T. Clough
- Energy and Sustainability
Theme, Cranfield University, Cranfield, Bedfordshire MK43 0AL, U.K.
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50
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Li J, Xiong Q, Mu X, Li L. Recent Advances in Ammonia Synthesis: From Haber-Bosch Process to External Field Driven Strategies. CHEMSUSCHEM 2024:e202301775. [PMID: 38469618 DOI: 10.1002/cssc.202301775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/01/2024] [Accepted: 03/11/2024] [Indexed: 03/13/2024]
Abstract
Ammonia, a pivotal chemical feedstock and a potential hydrogen energy carrier, demands efficient synthesis as a key step in its utilization. The traditional Haber-Bosch process, known for its high energy consumption, has spurred researchers to seek ammonia synthesis under milder conditions. Advances in surface science and characterization technologies have deepened our understanding of the microscopic reaction mechanisms of ammonia synthesis. This article concentrates on gas-solid phase ammonia synthesis, initially exploring the latest breakthroughs and improvements in thermal catalytic synthesis. Building on this, it especially focuses on emerging external field-driven alternatives, such as photocatalysis, photothermal catalysis, and low-temperature plasma catalysis strategies. The paper concludes by discussing the future prospects and objectives of nitrogen fixation technologies. This comprehensive review is intended to provide profound insights for overcoming the inherent thermodynamic and kinetic constraints in traditional ammonia synthesis, thereby fostering a shift towards "green ammonia" production and significantly reducing the energy footprint.
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Affiliation(s)
- Jiayang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, P. R. China
| | - Qingchuan Xiong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, P. R. China
| | - Xiaowei Mu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, 130022, Changchun, P. R. China
| | - Lu Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, P. R. China
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