1
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Bae S, Shin D, Kim H, Han JW, Lee JM. Accelerated Structural Optimization for the Supported Metal System Based on Hybrid Approach Combining Bayesian Optimization with Local Search. J Chem Theory Comput 2024; 20:2284-2296. [PMID: 38358319 DOI: 10.1021/acs.jctc.3c01265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Numerous systematic methods have been developed to search for the global minimum of the potential energy surface, which corresponds to the optimal atomic structure. However, the majority of them still demand a substantial computing load due to the relaxation process that is embedded as an inner step inside the algorithm. Here, we propose a hybrid approach that combines Bayesian optimization (BO) and a local search that circumvents the relaxation step and efficiently finds the optimum structure, particularly in supported metal systems. The hybridization strategy combining the capabilities of BO's effective exploration and the local search's fast convergence expedites structural search. In addition, the formulation of physical constraints regarding the materials system and the feature of screening structure similarity enhance the computational efficiency of the proposed method. The proposed algorithm is demonstrated in two supported metal systems, showing the potential of the proposed method in the field of structural optimization.
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Affiliation(s)
- Shinyoung Bae
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Dongjae Shin
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Haechang Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jeong Woo Han
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jong Min Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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2
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Zhang H, Wang F, Lou J, Chen H, Huang J, Li A, Yu Z, Long H, Ren Z, Tang C. Low-temperature CeCoMnO x spinel-type catalysts prepared by oxalate co-precipitation for selective catalytic reduction of NO using NH 3: A structure-activity relationship study. J Colloid Interface Sci 2024; 657:414-427. [PMID: 38056046 DOI: 10.1016/j.jcis.2023.11.181] [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: 09/05/2023] [Revised: 11/06/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
CeCoMnOx spinel-type catalysts for the selective catalytic reduction of NO using NH3 (NH3-SCR) are usually prepared by alkaline co-precipitation. In this paper, a series of CeCoMnOx spinel-type catalysts with different calcination temperatures were prepared by acidic oxalate co-precipitation. The physicochemical structures and NH3-SCR activities of the CeCoMnOx spinel-type catalysts prepared by oxalate co-precipitation and conventional ammonia co-precipitation were systematically compared. The results show that the CeCoMnOx spinel-type catalysts prepared by the oxalate precipitation method (CeCoMnOx-C) have larger specific surface area, more mesopores and surface active sites, stronger redox properties and adsorption activation properties than those prepared by the traditional ammonia co-precipitation method at 400 °C (CeCoMnOx-N-400), and thus CeCoMnOx-C have better low-temperature NH3-SCR performance. At the same calcination temperature of 400 °C, the NO conversion of CeCoMnOx-C-400 exceeds 89 % and approaches 100 % within the reaction temperature of 100-125 °C, which is 14.8 %-2.5 % higher than that of CeCoMnOx-N-400 at 100-125 °C. In addition, the enhanced redox and acid cycle matching mechanisms on the CeCoMnOx-C surface, as well as the enhanced monoadsorption Eley-Rideal (E-R) and double adsorption Langmuir-Hinshelwood (L-H) reaction mechanisms, are also derived from XPS and in situ DRIFTS characterization.
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Affiliation(s)
- Hongliang Zhang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; Analysis and Testing Central Facility, Anhui University of Technology, Ma'anshan 243002, China
| | - Fengcai Wang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; Analysis and Testing Central Facility, Anhui University of Technology, Ma'anshan 243002, China
| | - Jianjian Lou
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; Analysis and Testing Central Facility, Anhui University of Technology, Ma'anshan 243002, China
| | - Huan Chen
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; Analysis and Testing Central Facility, Anhui University of Technology, Ma'anshan 243002, China
| | - Jun Huang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; Analysis and Testing Central Facility, Anhui University of Technology, Ma'anshan 243002, China
| | - Ao Li
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China
| | - Zhengwei Yu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China
| | - Hongming Long
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China
| | - Zhixiang Ren
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology), Ministry of Education, Ma'anshan 243002, China; School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China.
| | - Changjin Tang
- Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, School of Environment, Nanjing Normal University, Nanjing 210023, China.
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3
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Wang SD, Ma TM, Li XN, He SG. CO Oxidation Promoted by NO Adsorption on RhMn 2O 3- Cluster Anions. J Phys Chem A 2024; 128:738-746. [PMID: 38236743 DOI: 10.1021/acs.jpca.3c06445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
CO oxidation represents an important model reaction in the gas phase to provide a clear structure-reactivity relationship in related heterogeneous catalysis. Herein, in combination with mass spectrometry experiments and quantum-chemical calculations, we identified that the RhMn2O3- cluster cannot oxidize CO into gas-phase CO2 at room temperature, while the NO preadsorbed products RhMn2O3-[(NO)1,2] are highly reactive in CO oxidation. This discovery is helpful to get a fundamental understanding on the reaction behavior in real-world three-way catalytic conditions where different kinds of reactants coexist. Theoretical calculations were performed to rationalize the crucial roles of preadsorbed NO where the strongly attached NO on the Rh atom can greatly stabilize the products RhMn2O2-[(NO)1,2] during CO oxidation and at the same time works together with the Rh atom to store electrons that stay originally in the attached CO2- unit. The leading result is that the desorption of CO2, which is the rate-determining step of CO oxidation by RhMn2O3-, can be greatly facilitated on the reactions of RhMn2O3-[(NO)1,2] with CO.
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Affiliation(s)
- Si-Dun Wang
- China School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, P. R. China
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Tong-Mei Ma
- China School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Tianhe District, Guangzhou 510641, P. R. China
| | - Xiao-Na Li
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Beijing National Laboratory for Molecular Sciences and CAS Research/Education Center of Excellence in Molecular Sciences, Beijing 100190, P. R. China
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4
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Zerbato E, Farris R, Fronzoni G, Neyman KM, Stener M, Bruix A. Effects of Oxygen Adsorption on the Optical Properties of Ag Nanoparticles. J Phys Chem A 2023; 127:10412-10424. [PMID: 38039331 PMCID: PMC10726366 DOI: 10.1021/acs.jpca.3c05801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 12/03/2023]
Abstract
Plasmonic metal nanoparticles are efficient light harvesters with a myriad of sensing- and energy-related applications. For such applications, the optical properties of nanoparticles of metals such as Cu, Ag, and Au can be tuned by controlling the composition, particle size, and shape, but less is known about the effects of oxidation on the plasmon resonances. In this work, we elucidate the effects of O adsorption on the optical properties of Ag particles by evaluating the thermodynamic properties of O-decorated Ag particles with calculations based on the density functional theory and subsequently computing the photoabsorption spectra with a computationally efficient time-dependent density functional theory approach. We identify stable Ag nanoparticle structures with oxidized edges and a quenching of the plasmonic character of the metal particles upon oxidation and trace back this effect to the sp orbitals (or bands) of Ag particles being involved both in the plasmonic excitation and in the hybridization to form bonds with the adsorbed O atoms. Our work has important implications for the understanding and application of plasmonic metal nanoparticles and plasmon-mediated processes under oxidizing environments.
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Affiliation(s)
- Elena Zerbato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università
di Trieste, Via L. Giorgieri 1, Trieste 34127, Italy
| | - Riccardo Farris
- Departament
de Ciència del Materials i Química Física &
Institut de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona 08028, Spain
| | - Giovanna Fronzoni
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università
di Trieste, Via L. Giorgieri 1, Trieste 34127, Italy
| | - Konstantin M. Neyman
- Departament
de Ciència del Materials i Química Física &
Institut de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona 08028, Spain
- ICREA
(Institució Catalana de Recerca i Estudis Avançats), Barcelona 08010, Spain
| | - Mauro Stener
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università
di Trieste, Via L. Giorgieri 1, Trieste 34127, Italy
| | - Albert Bruix
- Departament
de Ciència del Materials i Química Física &
Institut de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona 08028, Spain
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5
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Li Z, Haynes BS, Montoya A. Carbon Monoxide Oxidation on Ceria-Supported Nanoclusters. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37883665 DOI: 10.1021/acsami.3c09468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Periodic density functional theory is used to evaluate the minimum energy pathways of CO oxidation on cerium oxide-supported platinum and palladium nanoclusters (Pt/CeO2 and Pd/CeO2). For Pt/CeO2, the oxidation process involves the participation of lattice oxygen from CeO2 at the boundary sites of the cluster-ceria interface, which exhibits an exceptionally low energy barrier. Conversely, on Pd/CeO2, oxidation predominantly occurs through oxygen species bound to the Pd cluster. Experimental analysis using the temperature-programmed reduction of the oxidized Pd/CeO2 catalyst reveals a lower CO oxidation temperature compared to Pt/CeO2. This observation aligns with the anticipated decrease in the energy barrier for CO oxidation due to the oxygen coverage of the Pd cluster.
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Affiliation(s)
- Zuo Li
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Brian S Haynes
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Alejandro Montoya
- Faculty of Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
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6
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Castro-Latorre P, Neyman KM, Bruix A. Systematic Characterization of Electronic Metal-Support Interactions in Ceria-Supported Pt Particles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:17700-17710. [PMID: 37736294 PMCID: PMC10510437 DOI: 10.1021/acs.jpcc.3c03383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/31/2023] [Indexed: 09/23/2023]
Abstract
Electronic metal-support interactions affect the chemical and catalytic properties of metal particles supported on reducible metal oxides, but their characterization is challenging due to the complexity of the electronic structure of these systems. These interactions often involve different states with varying numbers and positions of strongly correlated d or f electrons and the corresponding polarons. In this work, we present an approach to characterize electronic metal-support interactions by means of computationally efficient density functional calculations within the projector augmented wave method. We describe Ce3+ cations with potentials that include a Ce4f electron in the frozen core, overcoming prevalent convergence and 4f electron localization issues. We systematically explore the stability and chemical properties of different electronic states for a Pt8/CeO2(111) model system, revealing the predominant effect of electronic metal-support interactions on Pt atoms located directly at the metal-oxide interface. Adsorption energies and the reactivity of these interface Pt atoms vary significantly upon donation of electrons to the oxide support, pointing to a strategy to selectively activate interfacial sites of metal particles supported on reducible metal oxides.
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Affiliation(s)
- Pablo Castro-Latorre
- Departament
de Ciència de Materials i Química Física, Institut de Quimica Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Konstantin M. Neyman
- Departament
de Ciència de Materials i Química Física, Institut de Quimica Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, 08028 Barcelona, Spain
- ICREA
(Institució Catalana de Recerca i Estudis Avançats), 08010 Barcelona, Spain
| | - Albert Bruix
- Departament
de Ciència de Materials i Química Física, Institut de Quimica Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, 08028 Barcelona, Spain
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7
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Tan W, Xie S, Cai Y, Yu H, Ye K, Wang M, Diao W, Ma L, Ehrlich SN, Gao F, Dong L, Liu F. Surface Lattice-Embedded Pt Single-Atom Catalyst on Ceria-Zirconia with Superior Catalytic Performance for Propane Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12501-12512. [PMID: 37563957 DOI: 10.1021/acs.est.3c03497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Tuning the metal-support interaction and coordination environment of single-atom catalysts can help achieve satisfactory catalytic performance for targeted reactions. Herein, via the facile control of calcination temperatures for Pt catalysts on pre-stabilized Ce0.9Zr0.1O2 (CZO) support, Pt single atoms (Pt1) with different strengths of Pt-CeO2 interaction and coordination environment were successfully constructed. With the increase in calcination temperature from 350 to 750 °C, a stronger Pt-CeO2 interaction and higher Pt-O-Ce coordination number were achieved due to the reaction between PtOx and surface Ce3+ species as well as the migration of Pt1 into the surface lattice of CZO. The Pt/CZO catalyst calcined at 750 °C (Pt/CZO-750) exhibited a surprisingly higher C3H8 oxidation activity than that calcined at 550 °C (Pt/CZO-550). Through systematic characterizations and reaction mechanism study, it was revealed that the higher concentration of surface Ce3+ species/oxygen vacancies and the stronger Pt-CeO2 interaction on Pt/CZO-750 could better facilitate the activation of oxygen to oxidize C3H8 into reactive carbonate/carboxyl species and further promote the transformation of these intermediates into gaseous CO2. The Pt/CZO-750 catalyst can be a potential candidate for the catalytic removal of hydrocarbons from vehicle exhaust.
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Affiliation(s)
- Wei Tan
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Yandi Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Haowei Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kailong Ye
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Meiyu Wang
- College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Weijian Diao
- Department of Chemical and Biological Engineering, Villanova University, Villanova, Pennsylvania 19085, United States
| | - Lu Ma
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Steven N Ehrlich
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Fei Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis; Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
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8
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Yeo W, Shin D, Kim MH, Han JW. Change in the Electronic Environment of the VO x Active Center via Support Modification to Enhance Hg Oxidation Activity. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Woonsuk Yeo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Dongjae Shin
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Moon Hyeon Kim
- Department of Environmental Engineering, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
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9
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Zhang B, Zhou J, Sun Z. New horizons of MBenes: highly active catalysts for the CO oxidation reaction. NANOSCALE 2023; 15:483-489. [PMID: 36519284 DOI: 10.1039/d2nr05705k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The search for materials with high intrinsic carbon monoxide oxidation reaction (COOR) catalytic activity is critical for enhancing the efficiency of reducing CO contamination. COOR catalysts, however, have long relied heavily on noble metals and CeO2. Herein, in order to search for non-noble COOR catalysts that are more active than CeO2, 18 oxygen-functionalized MBenes with orthorhombic and hexagonal crystal structures, denoted as orth-M2B2O2 and hex-M2B2O2 (M = Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and W), were investigated in terms of their COOR catalytic activity by high-throughput first-principles calculations. Hex-Mo2B2O2, orth-Mo2B2O2, hex-V2B2O2 and hex-Cr2B2O2 were found to be more active than CeO2 and possess structural stability below 1000 K, showing the potential to replace CeO2 as the substrates of COOR catalysts. Moreover, orth-Mo2B2O2, hex-V2B2O2 and hex-Cr2B2O2 exhibit even higher COOR catalytic activity than Pt-CeO2 and Au-CeO2, and are expected to be applied as COOR catalysts directly. Further investigations showed that the formation energy of oxygen vacancies could be used as the descriptor of COOR catalytic activity, which would help to reduce the amount of calculations significantly during the catalyst screening process. This work not only reports a series of 2D materials with high COOR catalytic activity and opens up a new application area for MBenes, but also provides a reliable strategy for highly efficient screening for COOR catalysts.
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Affiliation(s)
- Bikun Zhang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
- Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
| | - Jian Zhou
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
- Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
| | - Zhimei Sun
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China.
- Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
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10
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Small palladium clusters and their adducts with atomic oxygen. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Quinlivan Domínguez JE, Neyman KM, Bruix A. Stability of oxidized states of free-standing and ceria-supported PtO x particles. J Chem Phys 2022; 157:094709. [DOI: 10.1063/5.0099927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Nanostructured materials based on CeO2 and Pt play a fundamental role in catalyst design. However, their characterization is often challenging due to their structural complexity and the tendency of the materials to change under reaction conditions. In this work, we combine calculations based on the density functional theory, a machine-learning assisted global optimization method (GOFEE), and ab initio thermodynamics to characterize stable oxidation states of ceria-supported PtyOx particles in different environments. The collection of global minima structures for different stoichiometries resulting from the global optimisation effort is used to assess the effect of temperature, oxygen pressure, and support interactions on the phase diagrams, oxidation states, and geometries of the PtyOx particles. We thus identify favoured structural motifs and O:Pt ratios, revealing that oxidized states of free-standing and ceria-supported platinum particles are more stable than reduced ones under a wide range of conditions. These results indicate that studies rationalizing activity of ceria-supported Pt clusters must consider oxidized states, and that previous understanding of such materials obtained only with fully reduced Pt clusters may be incomplete.
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Affiliation(s)
| | - Konstantin M. Neyman
- Departament de Quimica Fisica, Universitat de Barcelona Departament de Química-Física, Spain
| | - Albert Bruix
- Universitat de Barcelona Departament de Química-Física, Spain
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12
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Shin D, Huang R, Jang MG, Choung S, Kim Y, Sung K, Kim TY, Han JW. Role of an Interface for Hydrogen Production Reaction over Size-Controlled Supported Metal Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dongjae Shin
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Rui Huang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Myeong Gon Jang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Seokhyun Choung
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Youngbi Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Kiheon Sung
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Tae Yong Kim
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
| | - Jeong Woo Han
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 37673, Republic of Korea
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13
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Promotional Effect of Pt-Doping on the Catalytic Performance of Pt−CeO2 Catalyst for CO Oxidation. Catalysts 2022. [DOI: 10.3390/catal12050529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Growing interest in the development of a hydrogen economy means that CO oxidation is increasingly important for upgrading H2-rich fuel gas streams for fuel cells. CeO2-supported catalysts are the most promising candidates for the catalytic oxidation of CO because of their high activity. In the present work, DFT+U calculations were performed to investigate the stability and CO oxidation reactivity of Ptn (n = 1−4) clusters supported on CeO2(111) (Pt/CeO2) and Pt-doped CeO2(111) (Pt/(Pt−Ce)O2) surfaces. The Pt clusters showed similar nucleation behavior on both CeO2 and (Pt−Ce)O2 surfaces. Further, the formation of oxygen vacancies (Ov) was facilitated because of surface charge depletion caused by the dopant Pt. Our DFT results suggest that the interfacial OV plays an important role in the CO oxidation reaction cycle, and the calculated energy barrier for the CO oxidation reaction on the Pt/(Pt−Ce)O2 surface is approximately 0.43 eV lower than that on the surface of the undoped catalyst, suggesting enhanced CO oxidation reactivity. Therefore, the chemical modification of the CeO2 support via doping is an effective strategy for improving the catalytic performance of Pt/CeO2.
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14
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Musa E, Doherty F, Goldsmith BR. Accelerating the structure search of catalysts with machine learning. Curr Opin Chem Eng 2022. [DOI: 10.1016/j.coche.2021.100771] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Ma K, Liao W, Shi W, Xu F, Zhou Y, Tang C, Lu J, Shen W, Zhang Z. Ceria-supported Pd catalysts with different size regimes ranging from single atoms to nanoparticles for the oxidation of CO. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Li G, Meeprasert J, Wang J, Li C, Pidko EA. CO
2
Hydrogenation to Methanol over Cd
4
/TiO
2
Catalyst: Insight into Multifunctional Interface. ChemCatChem 2022; 14:e202101646. [PMID: 35909897 PMCID: PMC9305886 DOI: 10.1002/cctc.202101646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/12/2021] [Indexed: 11/26/2022]
Abstract
Supported metal catalysts have shown to be efficient for CO2 conversion due to their multifunctionality and high stability. Herein, we have combined density functional theory calculations with microkinetic modeling to investigate the catalytic reaction mechanisms of CO2 hydrogenation to CH3OH over a recently reported catalyst of Cd4/TiO2. Calculations reveal that the metal‐oxide interface is the active center for CO2 hydrogenation and methanol formation via the formate pathway dominates over the reverse water‐gas shift (RWGS) pathway. Microkinetic modeling demonstrated that formate species on the surface of Cd4/TiO2 is the relevant intermediate for the production of CH3OH, and CH2O# formation is the rate‐determining step. These findings demonstrate the crucial role of the Cd‐TiO2 interface for controlling the CO2 reduction reactivity and CH3OH selectivity.
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Affiliation(s)
- Guanna Li
- Biobased Chemistry and Technology Wageningen University & Research Bornse Weilanden 9 6708WG Wageningen The Netherlands
- Laboratory of Organic Chemistry Wageningen University & Research Stippeneng 4 6708WE Wageningen The Netherlands
| | - Jittima Meeprasert
- Inorganic Systems Engineering Department of Chemical Engineering Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Jijie Wang
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Can Li
- State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Evgeny A. Pidko
- Inorganic Systems Engineering Department of Chemical Engineering Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
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17
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Bagheri M, Melillo A, Ferrer B, Masoomi MY, Garcia H. Quasi-HKUST Prepared via Postsynthetic Defect Engineering for Highly Improved Catalytic Conversion of 4-Nitrophenol. ACS APPLIED MATERIALS & INTERFACES 2022; 14:978-989. [PMID: 34970910 PMCID: PMC8762642 DOI: 10.1021/acsami.1c19862] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/12/2021] [Indexed: 06/14/2023]
Abstract
HKUST-1 [Cu3(BTC)2(H2O)3]n·nH2OMeOH was submitted to thermolysis under controlled conditions at temperatures between 100 and 300 °C. This treatment resulted in partial ligand decarboxylation, generating coordinatively unsaturated Cu2+ sites with extra porosity on the way to the transformation of the initial HKUST-1 framework to CuO. The obtained materials retaining in part the HKUST-1 original crystal structure (quasi-MOFs) were used to promote 4-nitrophenol conversion to 4-aminophenol. Because of the partial linker decomposition, the quasi-MOF treated at 240 °C contains coordinatively unsaturated Cu2+ ions distributed throughout the Q-HKUST lattice together with micro- and mesopores. These defects explain the excellent catalytic performance of QH-240 with an apparent rate constant of 1.02 × 10-2 s-1 in excess of NaBH4 and an activity factor and half-life time of 51 s-1g-1 and 68 s, respectively, which is much better than that of the HKUST parent. Also, the induction period decreases from the order of minutes to seconds in the presence of the HKUST and QH-240 catalysts, respectively. Kinetic studies fit with the Langmuir-Hinshelwood theory in which both 4-nitrophenol and BH4- should be adsorbed onto the catalyst surface. The values of the true rate constant (k), the adsorption constants of 4-nitrophenol and BH4- (K4-NP and KBH4-), as well as the activation energy are in agreement with a rate-determining step involving the reduction of 4-nitrophenol by the surface-bound hydrogen species.
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Affiliation(s)
- Minoo Bagheri
- Department
of Chemistry, Faculty of Science, Arak University, Arak 3848177584, Iran
| | - Arianna Melillo
- Instituto
Universitario de Tecnología Química Consejo Superior
de Investigaciones Científica and Departamento de Química, Universitat Politecnica de Valencia, Av. De los Naranjos s/n, Valencia 46022, Spain
| | - Belen Ferrer
- Instituto
Universitario de Tecnología Química Consejo Superior
de Investigaciones Científica and Departamento de Química, Universitat Politecnica de Valencia, Av. De los Naranjos s/n, Valencia 46022, Spain
| | | | - Hermenegildo Garcia
- Instituto
Universitario de Tecnología Química Consejo Superior
de Investigaciones Científica and Departamento de Química, Universitat Politecnica de Valencia, Av. De los Naranjos s/n, Valencia 46022, Spain
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18
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Ji W, Wang N, Li Q, Zhu H, Lin K, Deng J, Chen J, Zhang H, Xing X. Oxygen vacancy distributions and electron localization in a CeO2(100) nanocube. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01179k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Oxygen vacancy distributions in a 5 nm CeO2 nanocube were determined using the Reverse Monte Carlo method. The oxygen vacancies tend to be located on the surface of the CeO2 nanocube, with far fewer in subsurface and internal regions.
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Affiliation(s)
- Weihua Ji
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Na Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qiang Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - He Zhu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, China
| | - Kun Lin
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jinxia Deng
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jun Chen
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xianran Xing
- Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
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19
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Guo Y, Zhu H, Zhao H, Zhao Q, Zhou C, Suo B, Zou W, Jiang Z, Li Y. A theoretical study of the electrochemical reduction of CO 2 on cerium dioxide supported palladium single atoms and nanoparticles. Phys Chem Chem Phys 2021; 23:26185-26194. [PMID: 34812826 DOI: 10.1039/d1cp03835d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd/CeO2 catalysts show superior catalytic performance owing to their optimal cycling activity and stability. In this study, single-atom Pd and eight-atom Pd nanoparticle clusters were supported on the surface of CeO2(110) to investigate the effect of loaded-metal size on the catalytic performance of the Pd-CeO2 system for CO2 reduction. We investigated the CO2 reduction reaction (CRR) that produces C1 products (CO, HCOOH, CH3OH, and CH4) on Pd8/CeO2 and Pd/CeO2 by density functional theory. The structures, CO2 adsorption configurations, and CO2 reduction mechanisms of these two electrocatalysts were systematically studied. Subsequently, different reduction pathways on Pd8/CeO2 and Pd/CeO2 were investigated to identify the optimal reaction pathway for further assessment. The results showed that both of these catalysts are more selective towards the production of CH3OH than CH4. Moreover, compared to Pd/CeO2 and Pd4/CeO2 (from a previously reported study) the production of CH3OH via the CRR on Pd8/CeO2 exhibited the lowest limiting potential. These results demonstrate the superiority of Pd8/CeO2 as an electrocatalyst for the electrochemical reduction of CO2 to CH3OH.
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Affiliation(s)
- Yannv Guo
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Haiyan Zhu
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - He Zhao
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Qinfu Zhao
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Caihua Zhou
- School of Chemistry and Chemical Engineering, Xianyang Normal University, Xianyang, Shaanxi 712000, China
| | - Bingbing Suo
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Wenli Zou
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Zhenyi Jiang
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Yawei Li
- Shaanxi Key Laboratory for Theoretical Physics Frontiers, Institute of Modern Physics, Northwest University, Xi'an, Shaanxi 710069, China.
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20
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Xia GJ, Wang YG. Solvent promotion on the metal-support interaction and activity of Pd@ZrO2 Catalyst: Formation of metal hydrides as the new catalytic active phase at the Solid-Liquid interface. J Catal 2021. [DOI: 10.1016/j.jcat.2021.10.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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21
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Nasluzov VA, Ivanova-Shor EA, Shor AM, Laletina SS, Neyman KM. Adsorption and Oxidation of CO on Ceria Nanoparticles Exposing Single-Atom Pd and Ag: A DFT Modelling. MATERIALS (BASEL, SWITZERLAND) 2021; 14:6888. [PMID: 34832290 PMCID: PMC8618484 DOI: 10.3390/ma14226888] [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: 10/22/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022]
Abstract
Various COx species formed upon the adsorption and oxidation of CO on palladium and silver single atoms supported on a model ceria nanoparticle (NP) have been studied using density functional calculations. For both metals M, the ceria-supported MCOx moieties are found to be stabilised in the order MCO < MCO2 < MCO3, similar to the trend for COx species adsorbed on M-free ceria NP. Nevertheless, the characteristics of the palladium and silver intermediates are different. Very weak CO adsorption and the small exothermicity of the CO to CO2 transformation are found for O4Pd site of the Pd/Ce21O42 model featuring a square-planar coordination of the Pd2+ cation. The removal of one O atom and formation of the O3Pd site resulted in a notable strengthening of CO adsorption and increased the exothermicity of the CO to CO2 reaction. For the analogous ceria models with atomic Ag instead of atomic Pd, these two energies became twice as small in magnitude and basically independent of the presence of an O vacancy near the Ag atom. CO2-species are strongly bound in palladium carboxylate complexes, whereas the CO2 molecule easily desorbs from oxide-supported AgCO2 moieties. Opposite to metal-free ceria particle, the formation of neither PdCO3 nor AgCO3 carbonate intermediates before CO2 desorption is predicted. Overall, CO oxidation is concluded to be more favourable at Ag centres atomically dispersed on ceria nanostructures than at the corresponding Pd centres. Calculated vibrational fingerprints of surface COx moieties allow us to distinguish between CO adsorption on bare ceria NP (blue frequency shifts) and ceria-supported metal atoms (red frequency shifts). However, discrimination between the CO2 and CO32- species anchored to M-containing and bare ceria particles based solely on vibrational spectroscopy seems problematic. This computational modelling study provides guidance for the knowledge-driven design of more efficient ceria-based single-atom catalysts for the environmentally important CO oxidation reaction.
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Affiliation(s)
- Vladimir A. Nasluzov
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.A.N.); (A.M.S.); (S.S.L.)
| | - Elena A. Ivanova-Shor
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.A.N.); (A.M.S.); (S.S.L.)
| | - Aleksey M. Shor
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.A.N.); (A.M.S.); (S.S.L.)
| | - Svetlana S. Laletina
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 660036 Krasnoyarsk, Russia; (V.A.N.); (A.M.S.); (S.S.L.)
| | - Konstantin M. Neyman
- Departament de Ciència de Materials i Química Física and Institut de Quimica Teòrica i Computacional, Universitat de Barcelona, 08028 Barcelona, Spain;
- ICREA (Institució Catalana de Recerca i Estudis Avançats), 08010 Barcelona, Spain
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22
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Sangnier A, Genty E, Iachella M, Sautet P, Raybaud P, Matrat M, Dujardin C, Chizallet C. Thermokinetic and Spectroscopic Mapping of Carbon Monoxide Adsorption on Highly Dispersed Pt/γ-Al 2O 3. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04262] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexis Sangnier
- IFP Energies Nouvelles, Institut Carnot IFPEN Transports Energies, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France
- IFP Energies Nouvelles, Rond-Point de l’Echangeur de Solaize, BP 3, 69360 Solaize, France
| | - Eric Genty
- Univ. Lille, Centrale Lille, CNRS, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Mathilde Iachella
- Université de Lyon, CNRS, Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, 46 allée d’Italie, 69364 Lyon Cedex 07, France
| | - Philippe Sautet
- Université de Lyon, CNRS, Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, 46 allée d’Italie, 69364 Lyon Cedex 07, France
- Chemical and Biomolecular Engineering Department, Chemistry and Biochemistry Department and CNSI, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Pascal Raybaud
- IFP Energies Nouvelles, Rond-Point de l’Echangeur de Solaize, BP 3, 69360 Solaize, France
| | - Mickaël Matrat
- IFP Energies Nouvelles, Institut Carnot IFPEN Transports Energies, 1 et 4 avenue de Bois-Préau, 92852 Rueil-Malmaison Cedex, France
| | - Christophe Dujardin
- Univ. Lille, Centrale Lille, CNRS, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Céline Chizallet
- IFP Energies Nouvelles, Rond-Point de l’Echangeur de Solaize, BP 3, 69360 Solaize, France
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23
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Kim Y, Collinge G, Lee M, Khivantsev K, Cho SJ, Glezakou V, Rousseau R, Szanyi J, Kwak JH. Surface Density Dependent Catalytic Activity of Single Palladium Atoms Supported on Ceria**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yongseon Kim
- Department of Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Greg Collinge
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Mal‐Soon Lee
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Sung June Cho
- Department of Chemical Engineering Chonnam National University 77 Yongbong-ro, Buk-gu Gwangju 61186 Republic of Korea
| | - Vassiliki‐Alexandra Glezakou
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Roger Rousseau
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Janos Szanyi
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Ja Hun Kwak
- Department of Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
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24
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Wang Y, Kalscheur J, Su YQ, Hensen EJM, Vlachos DG. Real-time dynamics and structures of supported subnanometer catalysts via multiscale simulations. Nat Commun 2021; 12:5430. [PMID: 34521852 PMCID: PMC8440615 DOI: 10.1038/s41467-021-25752-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/18/2021] [Indexed: 02/08/2023] Open
Abstract
Understanding the performance of subnanometer catalysts and how catalyst treatment and exposure to spectroscopic probe molecules change the structure requires accurate structure determination under working conditions. Experiments lack simultaneous temporal and spatial resolution and could alter the structure, and similar challenges hinder first-principles calculations from answering these questions. Here, we introduce a multiscale modeling framework to follow the evolution of subnanometer clusters at experimentally relevant time scales. We demonstrate its feasibility on Pd adsorbed on CeO2(111) at various catalyst loadings, temperatures, and exposures to CO. We show that sintering occurs in seconds even at room temperature and is mainly driven by free energy reduction. It leads to a kinetically (far from equilibrium) frozen ensemble of quasi-two-dimensional structures that CO chemisorption and infrared experiments probe. CO adsorption makes structures flatter and smaller. High temperatures drive very rapid sintering toward larger, stable/metastable equilibrium structures, where CO induces secondary structure changes only.
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Affiliation(s)
- Yifan Wang
- Department of Chemical and Biomolecular Engineering, 150 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States
- Catalysis Center for Energy Innovation (CCEI), RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), 221 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States
| | - Jake Kalscheur
- Department of Chemical and Biomolecular Engineering, 150 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States
- Catalysis Center for Energy Innovation (CCEI), RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), 221 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States
| | - Ya-Qiong Su
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, China
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.
| | - Dionisios G Vlachos
- Department of Chemical and Biomolecular Engineering, 150 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States.
- Catalysis Center for Energy Innovation (CCEI), RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), 221 Academy St., University of Delaware, Newark, Delaware, DE, 19716, United States.
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25
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Gu H, Liu X, Liu X, Ling C, Wei K, Zhan G, Guo Y, Zhang L. Adjacent single-atom irons boosting molecular oxygen activation on MnO 2. Nat Commun 2021; 12:5422. [PMID: 34521832 PMCID: PMC8440510 DOI: 10.1038/s41467-021-25726-w] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022] Open
Abstract
Efficient molecular oxygen activation is crucial for catalytic oxidation reaction, but highly depends on the construction of active sites. In this study, we demonstrate that dual adjacent Fe atoms anchored on MnO2 can assemble into a diatomic site, also called as MnO2-hosted Fe dimer, which activates molecular oxygen to form an active intermediate species Fe(O = O)Fe for highly efficient CO oxidation. These adjacent single-atom Fe sites exhibit a stronger O2 activation performance than the conventional surface oxygen vacancy activation sites. This work sheds light on molecular oxygen activation mechanisms of transition metal oxides and provides an efficient pathway to activate molecular oxygen by constructing new active sites through single atom technology.
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Affiliation(s)
- Huayu Gu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Xiao Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China.
| | - Xiufan Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Cancan Ling
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Kai Wei
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Guangming Zhan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China.
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26
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Seo Y, Lee MW, Kim HJ, Choung JW, Jung C, Kim CH, Lee KY. Effect of Ag doping on Pd/Ag-CeO 2 catalysts for CO and C 3H 6 oxidation. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125373. [PMID: 33765567 DOI: 10.1016/j.jhazmat.2021.125373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/15/2021] [Accepted: 02/07/2021] [Indexed: 06/12/2023]
Abstract
To achieve high fuel efficiency and low emission in automobiles, it is necessary to develop highly active diesel oxidation catalysts (DOCs). Pd/CeO2 catalysts have been widely used as active catalysts for CO and C3H6 oxidation reactions. Additionally, Ag has been reported to enhance the oxygen storage capacity (OSC) of CeO2, which contributes to the oxidation ability of Pd/CeO2. In this study, Pd/Ag-CeO2 catalysts were used for CO and C3H6 oxidation reactions. When CeO2 was doped with appropriate amounts of Ag, reducibility and CO desorption rate were increased, which confirmed the high OSCs of Ag-doped catalysts. However, Ag particles were formed and the Ce3+/Ce4+ ratio decreased when CeO2 was doped with excess amounts of Ag. In addition, reduced Pd (Pd0), which is an active species for C3H6 oxidation, was formed and maintained even under oxidative reaction conditions. Since the removal of C3H6 is important for the oxidation of CO and C3H6, the catalyst with the highest Pd0 fraction (Pd/0.1Ag-CeO2 and Pd/0.3Ag-CeO2) presented improved catalytic activity. Consequently, the optimal amount of Ag enhanced the OSC of Pd/Ag-CeO2 catalysts and formed active Pd0 species under oxidative conditions, which resulted in the excellent catalytic activity of Pd/Ag-CeO2 for the CO and C3H6 oxidation reaction.
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Affiliation(s)
- Yaeun Seo
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, South Korea
| | - Min Woo Lee
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, South Korea
| | - Hyun Jae Kim
- Central Technology R&D Institute, Hyundai Oilbank Co., Ltd, 17-10 Mabok-ro 240beon-gil, Giheung-gu, Yongin-si, Gyeonggi-do 16891, South Korea
| | - Jin Woo Choung
- Energy & Environmental Chemical Systems Lab, Hyundai Motor Group, 37, Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-Do 16082, South Korea
| | - ChangHo Jung
- Energy & Environmental Chemical Systems Lab, Hyundai Motor Group, 37, Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-Do 16082, South Korea
| | - Chang Hwan Kim
- Energy & Environmental Chemical Systems Lab, Hyundai Motor Group, 37, Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-Do 16082, South Korea
| | - Kwan-Young Lee
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, South Korea; Super Ultra Low Energy and Emission Vehicle (SULEEV) Center, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, South Korea; Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul 02841, South Korea.
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27
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Li G, Zhang W, Luo N, Xue Z, Hu Q, Zeng W, Xu J. Bimetallic Nanocrystals: Structure, Controllable Synthesis and Applications in Catalysis, Energy and Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1926. [PMID: 34443756 PMCID: PMC8401639 DOI: 10.3390/nano11081926] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/21/2021] [Accepted: 07/23/2021] [Indexed: 12/12/2022]
Abstract
In recent years, bimetallic nanocrystals have attracted great interest from many researchers. Bimetallic nanocrystals are expected to exhibit improved physical and chemical properties due to the synergistic effect between the two metals, not just a combination of two monometallic properties. More importantly, the properties of bimetallic nanocrystals are significantly affected by their morphology, structure, and atomic arrangement. Reasonable regulation of these parameters of nanocrystals can effectively control their properties and enhance their practicality in a given application. This review summarizes some recent research progress in the controlled synthesis of shape, composition and structure, as well as some important applications of bimetallic nanocrystals. We first give a brief introduction to the development of bimetals, followed by the architectural diversity of bimetallic nanocrystals. The most commonly used and typical synthesis methods are also summarized, and the possible morphologies under different conditions are also discussed. Finally, we discuss the composition-dependent and shape-dependent properties of bimetals in terms of highlighting applications such as catalysis, energy conversion, gas sensing and bio-detection applications.
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Affiliation(s)
- Gaojie Li
- NEST Lab, Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (N.L.); (Z.X.); (Q.H.)
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Wenshuang Zhang
- NEST Lab, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China;
| | - Na Luo
- NEST Lab, Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (N.L.); (Z.X.); (Q.H.)
| | - Zhenggang Xue
- NEST Lab, Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (N.L.); (Z.X.); (Q.H.)
| | - Qingmin Hu
- NEST Lab, Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (N.L.); (Z.X.); (Q.H.)
| | - Wen Zeng
- School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
| | - Jiaqiang Xu
- NEST Lab, Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (N.L.); (Z.X.); (Q.H.)
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, China
- NEST Lab, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China;
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28
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Yu YX, Yang J, Zhu KK, Sui ZJ, Chen D, Zhu YA, Zhou XG. High-Throughput Screening of Alloy Catalysts for Dry Methane Reforming. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04911] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ya-Xin Yu
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jie Yang
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ka-Ke Zhu
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhi-Jun Sui
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim N-9491, Norway
| | - Yi-An Zhu
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xing-Gui Zhou
- UNILAB, State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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29
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Kim Y, Collinge G, Lee MS, Khivantsev K, Cho SJ, Glezakou VA, Rousseau R, Szanyi J, Kwak JH. Surface Density Dependent Catalytic Activity of Single Palladium Atoms Supported on Ceria*. Angew Chem Int Ed Engl 2021; 60:22769-22775. [PMID: 34180114 DOI: 10.1002/anie.202105750] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/11/2021] [Indexed: 11/05/2022]
Abstract
The analogy between single-atom catalysts (SACs) and molecular catalysts predicts that the specific catalytic activity of these systems is constant. We provide evidence that this prediction is not necessarily true. As a case in point, we show that the specific activity over ceria-supported single Pd atoms linearly increases with metal atom density, originating from the cumulative enhancement of CeO2 reducibility. The long-range electrostatic footprints (≈1.5 nm) around each Pd site overlap with each other as surface Pd density increases, resulting in an observed deviation from constant specific activity. These cooperative effects exhaust previously active O atoms above a certain Pd density, leading to their permanent removal and a consequent drop in reaction rate. The findings of our combined experimental and computational study show that the specific catalytic activity of reducible oxide-supported single-atom catalysts can be tuned by varying the surface density of single metal atoms.
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Affiliation(s)
- Yongseon Kim
- Department of Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Greg Collinge
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Mal-Soon Lee
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Sung June Cho
- Department of Chemical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Vassiliki-Alexandra Glezakou
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Roger Rousseau
- Physical and Computational Sciences Directorate and Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Janos Szanyi
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Ja Hun Kwak
- Department of Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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30
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Doherty F, Goldsmith BR. Rhodium Single‐Atom Catalysts on Titania for Reverse Water Gas Shift Reaction Explored by First Principles Mechanistic Analysis and Compared to Nanoclusters. ChemCatChem 2021. [DOI: 10.1002/cctc.202100292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Francis Doherty
- Department of Chemical Engineering University of Michigan 2300 Hayward St. Ann Arbor MI 48109-2136 USA
- Catalysis Science and Technology Institute University of Michigan 2300 Hayward St. Ann Arbor MI 48109-2136 USA
| | - Bryan R. Goldsmith
- Department of Chemical Engineering University of Michigan 2300 Hayward St. Ann Arbor MI 48109-2136 USA
- Catalysis Science and Technology Institute University of Michigan 2300 Hayward St. Ann Arbor MI 48109-2136 USA
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31
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Zhang L, Spezzati G, Muravev V, Verheijen MA, Zijlstra B, Filot IAW, Su YQ, Chang MW, Hensen EJM. Improved Pd/CeO 2 Catalysts for Low-Temperature NO Reduction: Activation of CeO 2 Lattice Oxygen by Fe Doping. ACS Catal 2021; 11:5614-5627. [PMID: 34055456 PMCID: PMC8154324 DOI: 10.1021/acscatal.1c00564] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/25/2021] [Indexed: 11/28/2022]
Abstract
Developing better three-way catalysts with improved low-temperature performance is essential for cold start emission control. Density functional theory in combination with microkinetics simulations is used to predict reactivity of CO/NO/H2 mixtures on a small Pd cluster on CeO2(111). At low temperatures, N2O formation occurs via a N2O2 dimer over metallic Pd3. Part of the N2O intermediate product re-oxidizes Pd, limiting NO conversion and requiring rich conditions to obtain high N2 selectivity. High N2 selectivity at elevated temperatures is due to N2O decomposition on oxygen vacancies. Doping CeO2 by Fe is predicted to lead to more oxygen vacancies and a higher N2 selectivity, which is validated by the lower onset of N2 formation for a Pd catalyst supported on Fe-doped CeO2 prepared by flame spray pyrolysis. Activating ceria surface oxygen by transition metal doping is a promising strategy to improve the performance of three-way catalysts.
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Affiliation(s)
- Long Zhang
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Giulia Spezzati
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Valery Muravev
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Marcel A. Verheijen
- Applied
Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
- Eurofins
Material Science Netherlands BV, 5656 AE Eindhoven, The Netherlands
| | - Bart Zijlstra
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ivo A. W. Filot
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ya-Qiong Su
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ming-Wen Chang
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Laboratory
of Inorganic Materials and Catalysis, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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32
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Liu L, Lv P. DFT insight into the effect of Cu atoms on adsorption and dissociation of CO 2 over a Pd 8/ TiO 2(101) surface. RSC Adv 2021; 11:17391-17398. [PMID: 35479725 PMCID: PMC9032842 DOI: 10.1039/d1ra01724a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/05/2021] [Indexed: 12/18/2022] Open
Abstract
In order to improve the photocatalytic activity of a bimetallic cocatalyst, understanding its mechanism is very important for the development of a CO2 photocatalyst. In this study, density functional theory (DFT) calculations were performed to investigate CO2 adsorption and dissociation over Pd–Cu bimetallic clusters loaded on a TiO2(101) surface, aiming at understanding the origin of the effect caused by the presence of Cu. The results demonstrated that the introduction of a Cu atom has a dual effect on the adsorption and dissociation of CO2: (1) it provides the positive polarization charge center to enhance CO2 adsorption, and (2) it up-shifts the d-band center of the Cu atom to improve the activation of CO2. Thus, the activity of the Pd7Cu1/TiO2(101) surface, as compared with that of the Pd8/TiO2(101) surface, can be significantly improved, and the active center is the introduced Cu atom. This result is not only helpful for the development of effective CO2 photocatalysts but also crucial to understand the basic mechanism of bimetallic catalysis. The Cu atom provides the positive polarization charge center to enhance CO2 adsorption and up-shifts its d-band center to improve the activation of CO2.![]()
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Affiliation(s)
- Li Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China +86 0531 89631630 +86 0531 89631168.,School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Pingli Lv
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China.,School of Chemistry and Chemical Engineering, Shandong University Jinan 250100 China
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33
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Zhang Y, Liu JX, Qian K, Jia A, Li D, Shi L, Hu J, Zhu J, Huang W. Structure Sensitivity of Au-TiO 2 Strong Metal-Support Interactions. Angew Chem Int Ed Engl 2021; 60:12074-12081. [PMID: 33709509 DOI: 10.1002/anie.202101928] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/07/2021] [Indexed: 11/07/2022]
Abstract
Strong metal-support interactions (SMSI) is an important concept in heterogeneous catalysis. Herein, we demonstrate that the Au-TiO2 SMSI of Au/TiO2 catalysts sensitively depends on both Au nanoparticle (NP) sizes and TiO2 facets. Au NPs of ca. 5 nm are more facile undergo Au-TiO2 SMSI than those of ca. 2 nm, while TiO2 {001} and {100} facets are more facile than TiO2 {101} facets. The resulting capsulating TiO2-x overlayers on Au NPs exhibit an average oxidation state between +3 and +4 and a Au-to-TiO2-x charge transfer, which, combined with calculations, determines the Ti:O ratio as ca. 6:11. Both TiO2-x overlayers and TiO2-x -Au interface exhibit easier lattice oxygen activation and higher intrinsic activity in catalyzing low-temperature CO oxidation than the starting Au-TiO2 interface. These results advance fundamental understanding of SMSI and demonstrate engineering of metal NP size and oxide facet as an effective strategy to tune the SMSI for efficient catalysis.
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Affiliation(s)
- Yunshang Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jin-Xun Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Aiping Jia
- Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Dan Li
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Lei Shi
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jun Hu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China.,Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China.,Dalian National Laboratory for Clean Energy, Dalian, 116023, China
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34
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35
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Catalytic activities of hydroxylated gold dimer clusters for water-gas shift reactions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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36
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Relationships between the activities and Ce3+ concentrations of CeO2(111) for CO oxidation: A first-principle investigation. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Liu R, An W. Stepped M@Pt(211) (M = Co, Fe, Mo) single-atom alloys promote the deoxygenation of lignin-derived phenolics: mechanism, kinetics, and descriptors. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01258d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
HDO of lignin-derived phenolics on stepped M@Pt(211) (M = Co, Fe, Mo) single-atom alloy was computationally explored. Either C–O bond length or *OH binding energy was confirmed as an effective catalytic descriptor for predicting HDO performance.
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Affiliation(s)
- Ranran Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Songjiang District, Shanghai 201620, China
| | - Wei An
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Songjiang District, Shanghai 201620, China
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38
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Pei X, Li Y, Deng Y, Lu L, Li W, Shi R, Lei A, Zhang L. Chitin microsphere supported Pd nanoparticles as an efficient and recoverable catalyst for CO oxidation and Heck coupling reaction. Carbohydr Polym 2021; 251:117020. [PMID: 33142581 DOI: 10.1016/j.carbpol.2020.117020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 08/08/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
Chitin derived from seafood wastes is a sustainable biopolymer, which can be used to constructe new materials to reduce the environmental pollution caused by non-biodegradable plastics. Herein, nanofibrous microspheres fabricated from chitin solution were used as carriers to construct three different chitin-supported Pd catalysts through diverse activation methods, subsequently revealed their differences in structure and performance. The palladium nanoparticles were firmly and highly dispersed on the microspheres due to the interconnected nanofibrous networks and functional groups of chitin, confirmed by various physicochemical characterizations. As the best candidate catalyst of Pd/chitin-Ar, in the CO oxidation reaction, which achieved 100% CO conversion with a lower Pd content, and exhibited excellent stability in 24-hours cycle reaction. Importantly, the catalyst was further applied in Heck coupling reaction, which also displayed competitive catalytic activity and stability (∼6runs, 94%). This utilizing of biomass resource to build catalyst materials would be important for the sustainable chemistry.
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Affiliation(s)
- Xianglin Pei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China; College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Yan Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yi Deng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lijun Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wendian Li
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Renyi Shi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
| | - Lina Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
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39
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Chang MW, Zhang L, Davids M, Filot IA, Hensen EJ. Dynamics of gold clusters on ceria during CO oxidation. J Catal 2020. [DOI: 10.1016/j.jcat.2020.09.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Li S, Li Y, Bäumer M, Moskaleva LV. Assessment of PBE+U and HSE06 methods and determination of optimal parameter U for the structural and energetic properties of rare earth oxides. J Chem Phys 2020; 153:164710. [PMID: 33138436 DOI: 10.1063/5.0024499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Rare earth oxides are attracting increasing interest as a relatively unexplored group of materials with potential applications in heterogeneous catalysis and electrocatalysis; therefore, a credible and universal computational approach is needed for modeling their reactivity. In this work, we systematically assessed the performance of the PBE+U method against the results of the hybrid HSE06 method with respect to the description of structural parameters and energetic properties of the selected hexagonal lanthanide sesquioxides and the cubic fluorite-type cerium dioxide. In addition, we evaluated the performance of PBE+U in describing the electronic structure and adsorption properties of the CeO2(111) and Nd2O3(0001) surfaces. The HSE06 method reproduces rather well the lattice parameters and selected energetic properties with respect to the experimental values. The PBE+U method is able to reproduce the results of HSE06 or the experimental values only if the U parameter is selected from an appropriate range of values. The U value around 3 eV gives the best description of the lattice parameters of most bulk oxides. 2 eV-3 eV is also found to be the optimal range of U for the reaction energies of bulk La2O3, Ce2O3, Nd2O3, Er2O3, and Ho2O3. U = 1 eV gives the best results for Pr2O3, Pm2O3, Eu2O3, Tm2O3, and Lu2O3, whereas Gd2O3 could not be accurately described by the PBE+U method. The U values (∼3 eV) found optimal for most bulk oxides also work well in the calculations of adsorption of small molecules on Nd2O3(0001) and CeO2(111), although larger U values are required to obtain sufficient localization of 4f electrons.
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Affiliation(s)
- Shikun Li
- Institute of Applied and Physical Chemistry, Faculty 02, University of Bremen, 28359 Bremen, Germany
| | - Yong Li
- Institute of Applied and Physical Chemistry, Faculty 02, University of Bremen, 28359 Bremen, Germany
| | - Marcus Bäumer
- Institute of Applied and Physical Chemistry, Faculty 02, University of Bremen, 28359 Bremen, Germany
| | - Lyudmila V Moskaleva
- Institute of Applied and Physical Chemistry, Faculty 02, University of Bremen, 28359 Bremen, Germany
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41
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Wang Y, Su YQ, Hensen EJM, Vlachos DG. Finite-Temperature Structures of Supported Subnanometer Catalysts Inferred via Statistical Learning and Genetic Algorithm-Based Optimization. ACS NANO 2020; 14:13995-14007. [PMID: 33054171 DOI: 10.1021/acsnano.0c06472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Single-atom catalysts (SACs) minimize noble metal utilization and can alter the activity and selectivity of supported metal nanoparticles. However, the morphology of active centers, including single atoms and subnanometer clusters of a few atoms, remains elusive due to experimental challenges. The computational cost to describe numerous cluster shapes and sizes makes direct first-principles calculations impractical. We present a computational framework to enable structure determination for single-atom and subnanometer cluster catalysts. As a case study, we obtained the low-energy structures of Pdn (n = 1-21) clusters supported on CeO2(111), which are critical components of automobile three-way catalysts. Trained on density functional theory data, a three-dimensional cluster expansion is established using statistical learning to describe the Hamiltonian and predict energies of supported Pdn clusters of any structure. Low-energy stable and metastable structures are identified using a Metropolis Monte Carlo-based genetic algorithm in the canonical ensemble at 300 K. We observe that supported single atoms sinter to form bilayer clusters, and large cluster isomers share similarities in both shape and energy. The findings elucidate the significance of the support and microstructure on cluster stability. We discovered a simple surrogate structure-energy model, where the energy per atom scales with the square root of the average first coordination number, which can be used to estimate energies and compare the stability of clusters. Our framework, applicable to any metal/support system, fills an important methodological gap to predict the stability of supported metal catalysts in the subnanometer regime.
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Affiliation(s)
- Yifan Wang
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Ya-Qiong Su
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Dionisios G Vlachos
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
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42
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Liu J, Wang L, Okejiri F, Luo J, Zhao J, Zhang P, Liu M, Yang S, Zhang Z, Song W, Zhu W, Liu J, Zhao Z, Feng G, Xu C, Dai S. Deep Understanding of Strong Metal Interface Confinement: A Journey of Pd/FeOx Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01447] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jixing Liu
- School of Chemistry and Chemical Engineering, Institution for Energy Research, Jiangsu University, Zhenjiang 212013, P. R. China
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Lu Wang
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Francis Okejiri
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Jing Luo
- School of Chemistry and Chemical Engineering, Institution for Energy Research, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Jiahua Zhao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Pengfei Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Miaomiao Liu
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Shize Yang
- Brookhaven National Laboratory, Upton, New York NY11973, United States
| | - Zihao Zhang
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
| | - Weiyu Song
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering, Institution for Energy Research, Jiangsu University, Zhenjiang 212013, P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Guodong Feng
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China
- Key Laboratory of Advanced Molecular Engineering Materials, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China
| | - Chunming Xu
- State Key Laboratory of Heavy Oil and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Sheng Dai
- Department of Chemistry, University of Tennessee−Knoxville, Knoxville, Tennessee 37996-1600, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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43
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Xiao Q, Wang Y, Zhao ZJ, Pei C, Chen S, Gao L, Mu R, Fu Q, Gong J. Defect-mediated reactivity of Pt/TiO2 catalysts: the different role of titanium and oxygen vacancies. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9798-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Zhu X, He H, Li Y, Wu H, Fu M, Ye D, Wu J, Huang H, Hu Y, Niu X. CeO 2-Supported Pt Catalysts Derived from MOFs by Two Pyrolysis Strategies to Improve the Oxygen Activation Ability. NANOMATERIALS 2020; 10:nano10050983. [PMID: 32455569 PMCID: PMC7279553 DOI: 10.3390/nano10050983] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/16/2020] [Accepted: 05/16/2020] [Indexed: 01/19/2023]
Abstract
Functional metal organic framework (MOF) derivatives have attracted tremendous attention as promising catalysts for various reactions. The thermal decomposition strategies have a vital effect on the structures and physicochemical properties of functional MOF derivatives. Nevertheless, what effect does the pyrolysis strategy have on MOF derivatives need further study. In this work, one-step (under dry air) and two-step (first under N2 and then dry air) pyrolysis are chosen to prepare the functional ceria-based MOF derivatives with novel hierarchical pore structure. In comparison with the derivatives prepared by one-step pyrolysis, the two-step pyrolysis composites exhibit better catalytic activity for toluene oxidation due to the higher contents of surface absorbed oxygen species and surface oxygen vacancies. The reusability and durability test demonstrates perfect stability of such functional MOF derivatives. The in-situ UV Raman reveals that two-step strategy is favorable for enhancing the gaseous oxygen activation ability of the functional MOF derivatives. Those findings may instruct the synthesis of functional MOF derivatives via different pyrolysis strategies as well as afford a further understanding of the crucial role of oxygen vacancies.
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Affiliation(s)
- Xueqing Zhu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Hui He
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Yanxia Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Haoyuan Wu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Mingli Fu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China
- National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, South China University of Technology, Guangzhou 510006, China
- Correspondence: ; Tel.: +86-20-39380508
| | - Daiqi Ye
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China
- National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, South China University of Technology, Guangzhou 510006, China
| | - Junliang Wu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou 510006, China
| | - Haomin Huang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Yun Hu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
| | - Xiaojun Niu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; (X.Z.); (H.H.); (Y.L.); (H.W.); (D.Y.); (J.W.); (H.H.); (Y.H.); (X.N.)
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Kalita L, Saikia L. Palladium‐Supported Nanoceria: A Highly Efficient Catalyst for Solvent‐Free Selective Oxidation of Ethylbenzene to Acetophenone. ChemistrySelect 2020. [DOI: 10.1002/slct.202001079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lisamoni Kalita
- Lisamoni KalitaMaterials Sciences and Technology DivisionCSIR-North East Institute of Science and TechnologyJorhat-06AssamAcademy of Scientific and Innovative Research Chennai India
| | - Lakshi Saikia
- Materials Sciences and Technology DivisionCSIR-North East Institute of Science and TechnologyJorhat-06AssamAcademy of Scientific and Innovative Research Chennai India
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46
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Sun G, Alexandrova AN, Sautet P. Structural Rearrangements of Subnanometer Cu Oxide Clusters Govern Catalytic Oxidation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00824] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Geng Sun
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Anastassia N. Alexandrova
- Department of Chemistry & Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- California Nano Systems Institute, Los Angeles, California 90095, United States
| | - Philippe Sautet
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry & Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- California Nano Systems Institute, Los Angeles, California 90095, United States
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47
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Cheng Y, Song Y, Zhang Y. A systematic investigation of the catalytic performances of monolayer carbon nitride nanosheets C 1-xN x. Phys Chem Chem Phys 2020; 22:6772-6782. [PMID: 32175552 DOI: 10.1039/d0cp00319k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphitic carbon nitrides (CNs) are potential candidate materials for the electro-catalytic industry due to their unique physical and chemical properties. However, to date, a full understanding of the electro-catalytic properties of CNs is still lacking. Herein, by using density functional theory calculations, we systematically investigate the catalytic performances in the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), N2 reduction reaction (NRR), and CO2 reduction reaction (CO2RR) of monolayer graphitic carbon nitrides (C1-xNx), C3N (x = 1/4), C2N (x = 1/3), and g-C3N4 (x = 4/7). We also evaluated the NRR activity of B doped C1-xNx, and the CO2RR activity of Cu and Pd modified C1-xNx. The cohesive energy and ab initio molecular dynamics (AIMD) results show that C3N, C2N, and g-C3N4 are stable at room temperature. The C3N-C1 site is predicted to deliver the best HER catalytic performance with a reaction Gibbs free energy (ΔGH*) of -0.03 eV (close to the ideal value (0 eV)). Among the studied C1-xNx materials, the C3N-C2 site is predicted to possess a favorable ηOER of 0.82 V for OER. Pure C3N, C2N, and g-C3N4 are not suitable for NRR and CO2RR. Due to the strong hybridization between the N 2p orbital and the B 2p orbital, the NRR performances of B doped BN-C2N, BN-C3N, and BN-g-C3N4 are greatly enhanced, with corresponding overpotential ηNRR of 0.57 V, 0.70 V, and 0.72 V, respectively. The transition metals Cu and Pd can enhance the CO2RR activity of C3N, C2N, and g-C3N4. The limiting potentials UL of pure C3N, C2N, and g-C3N4 are 0.96 V, 0.86 V, and 2.37 V, respectively, while these values are 0.63 V, 0.68 V, and 0.77 V with Cu or Pd modification. This work provides deep understanding of the catalytic properties of monolayer C1-xNx and guidance for synthesizing higher activity catalysts in the future.
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Affiliation(s)
- Yuwen Cheng
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, 2 West Wenhua Road, Weihai, 264209, P. R. China. and National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, P. R. China.
| | - Yan Song
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, 2 West Wenhua Road, Weihai, 264209, P. R. China.
| | - Yumin Zhang
- National Key Laboratory of Science and Technology for National Defence on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, P. R. China.
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48
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Fan W, Liu D, Wang X, Liu X, Cao D, Fan L, Huang Z, Guo W, Sun D. Metal-organic framework templated Pd/CeO 2@N-doped carbon for low-temperature CO oxidation. NANOSCALE ADVANCES 2020; 2:755-762. [PMID: 36133235 PMCID: PMC9419610 DOI: 10.1039/c9na00744j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 12/30/2019] [Indexed: 06/16/2023]
Abstract
A new Pd/Ce based metal-organic framework is designed and synthesized as a self-sacrificial template for fabrication of an efficient catalyst for CO oxidation. The catalyst obtained by thermal annealing at 700 °C (Pd/CeO2@NC-700) is composed of N-doped carbon with embedded Pd and CeO2 nanoparticles, which are highly dispersed and closely connected in the N-doped carbon; the high Pd loading (33.7 wt%) and the coupling between Pd and the CeO2 phase synergistically boost the CO oxidation performance. The Pd/CeO2@NC-700 catalyst exhibits a 100% conversion temperature of 89 °C and excellent long-term stability. By combining structural characterization with density functional theory calculations, two possible CO oxidation pathways of TPB and TOP are revealed, in which the adsorbed O2 directly dissociates to O* atoms and activates CO* molecules. The transfer of O* between Pd and Ce (TPB) or Pd and Pd (TOP) facilitates the formation of intermediates and finally results in the production of CO2. This work provides a new insight into the development of novel efficient catalysts for CO oxidation based on metal-organic frameworks.
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Affiliation(s)
- Weidong Fan
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Dongyuan Liu
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Xia Wang
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Xiuping Liu
- College of Materials Science and Engineering, Linyi University Linyi Shandong 276000 China
| | - Dongwei Cao
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Lili Fan
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Zhaodi Huang
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Wenyue Guo
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
| | - Daofeng Sun
- School of Materials Science and Engineering, College of Science, China University of Petroleum (East China) Qingdao Shandong 266580 China
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49
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Cui Z, Bai X, Liu T. Effect of Hexadecylpyridinium Bromide (HDPB) on Morphology and Electrocatalytic Performance of Porous Palladium Nanoparticles. ChemistrySelect 2020. [DOI: 10.1002/slct.201903892] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zelin Cui
- College of Chemistry and Material Science and Chemical EngineeringHarbin Engineering University Harbin 150001 China
| | - Xuefeng Bai
- College of Chemistry and Material Science and Chemical EngineeringHarbin Engineering University Harbin 150001 China
- College of Chemistry and Material SciencesHeilongjiang University Harbin 150080 China
- Institute of PetrochemistryHeilongjiang Academy of Sciences Harbin 150040 China
| | - Teng Liu
- College of Chemistry and Material SciencesHeilongjiang University Harbin 150080 China
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50
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Li H, Shen M, Wang J, Wang H, Wang J. Effect of Support on CO Oxidation Performance over the Pd/CeO2 and Pd/CeO2–ZrO2 Catalyst. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05351] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hang Li
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Meiqing Shen
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
- Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300350, PR China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300350, PR China
| | - Jianqiang Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Hui Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
| | - Jun Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, PR China
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