1
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Gao T, An Q, Tang X, Yue Q, Zhang Y, Li B, Li P, Jin Z. Recent progress in energy-saving electrocatalytic hydrogen production via regulating the anodic oxidation reaction. Phys Chem Chem Phys 2024; 26:19606-19624. [PMID: 39011574 DOI: 10.1039/d4cp01680g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Hydrogen energy with its advantages of high calorific value, renewable nature, and zero carbon emissions is considered an ideal candidate for clean energy in the future. The electrochemical decomposition of water, powered by renewable and clean energy sources, presents a sustainable and environmentally friendly approach to hydrogen production. However, the traditional electrochemical overall water-splitting reaction (OWSR) is limited by the anodic oxygen evolution reaction (OER) with sluggish kinetics. Although important advances have been made in efficient OER catalysts, the theoretical thermodynamic difficulty predetermines the inevitable large potential (1.23 V vs. RHE for the OER) and high energy consumption for the conventional water electrolysis to obtain H2. Besides, the generation of reactive oxygen species at high oxidation potentials can lead to equipment degradation and increase maintenance costs. Therefore, to address these challenges, thermodynamically favorable anodic oxidation reactions with lower oxidation potentials than the OER are used to couple with the cathodic hydrogen evolution reaction (HER) to construct new coupling hydrogen production systems. Meanwhile, a series of robust catalysts applied in these new coupled systems are exploited to improve the energy conversion efficiency of hydrogen production. Besides, the electrochemical neutralization energy (ENE) of the asymmetric electrolytes with a pH gradient can further promote the decrease in application voltage and energy consumption for hydrogen production. In this review, we aim to provide an overview of the advancements in electrochemical hydrogen production strategies with low energy consumption, including (1) the traditional electrochemical overall water splitting reaction (OWSR, HER-OER); (2) the small molecule sacrificial agent oxidation reaction (SAOR) and (3) the electrochemical oxidation synthesis reaction (EOSR) coupling with the HER (HER-SAOR, HER-EOSR), respectively; (4) regulating the pH gradient of the cathodic and anodic electrolytes. The operating principle, advantages, and the latest progress of these hydrogen production systems are analyzed in detail. In particular, the recent progress in the catalytic materials applied to these coupled systems and the corresponding catalytic mechanism are further discussed. Furthermore, we also provide a perspective on the potential challenges and future directions to foster advancements in electrocatalytic green sustainable hydrogen production.
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Affiliation(s)
- Taotao Gao
- Institute for Advanced Study and School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Qi An
- Institute for Advanced Study and School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Xiangmin Tang
- Institute for Advanced Study and School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Qu Yue
- Institute for Advanced Study and School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Yang Zhang
- Institute for Advanced Study and School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Bing Li
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, 442000, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China.
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2
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Huang B, Gu Q, Tang X, Lützenkirchen-Hecht D, Yuan K, Chen Y. Experimentally validating sabatier plot by molecular level microenvironment customization for oxygen electroreduction. Nat Commun 2024; 15:6077. [PMID: 39030179 PMCID: PMC11271610 DOI: 10.1038/s41467-024-50377-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 07/09/2024] [Indexed: 07/21/2024] Open
Abstract
Microenvironmental modifications on metal sites are crucial to tune oxygen reduction catalytic behavior and decrypt intrinsic mechanism, whereas the stochastic properties of traditional pyrolyzed single-atom catalysts induce vague recognition on structure-reactivity relations. Herein, we report a theoretical descriptor relying on binding energies of oxygen adsorbates and directly associating the derived Sabatier volcano plot with calculated overpotential to forecast catalytic efficiency of cobalt porphyrin. This Sabatier volcano plot instructs that electron-withdrawing substituents mitigate the over-strong *OH intermediate adsorption by virtue of the decreased proportion of electrons in bonding orbital. To experimentally validate this speculation, we implement a secondary sphere microenvironment customization strategy on cobalt porphyrin-based polymer nanocomposite analogs. Systematic X-ray spectroscopic and in situ electrochemical characterizations capture the pronounced accessible active site density and the fast interfacial/outward charge migration kinetics contributions for the optimal carboxyl group-substituted catalyst. This work offers ample strategies for designing single-atom catalysts with well-managed microenvironment under the guidance of Sabatier volcano map.
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Affiliation(s)
- Bingyu Huang
- College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China
- College of Chemistry and Materials/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Qiao Gu
- College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China
| | - Xiannong Tang
- College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China
| | - Dirk Lützenkirchen-Hecht
- Faculty of Mathematics and Natural Sciences-Physics Department, Bergische Universität Wuppertal, Gauss-Str. 20, D-42119, Wuppertal, Germany
| | - Kai Yuan
- College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China.
| | - Yiwang Chen
- College of Chemistry and Chemical Engineering/Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC), Nanchang University, Nanchang, 330031, PR China.
- College of Chemistry and Materials/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
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3
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Han S, Lee HJ, Kim T, Lim SY, Kim J. Flexible and Dynamic Light-Guided Electrochemiluminescence for Spatiotemporal Imaging of Photoelectrochemical Processes on Hematite. Anal Chem 2024; 96:11146-11154. [PMID: 38917341 DOI: 10.1021/acs.analchem.3c05097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Here, we report an electrochemiluminescence (ECL)-based approach for imaging of local photoelectrochemical processes on hematite in a spatially and temporally controlled manner. The local processes were guided by flexible and dynamic light illumination, not requiring any prepatterned conductive features or photomasks, with a digital micromirror device (DMD). The imaging approach was based on light-addressable electrochemical reactions on hematite, resulting in photoinduced ECL emission for spatiotemporally resolved imaging of photoelectrochemical processes selectively guided by light illumination. After clarifying the capability of hematite as a photosensitive electrode, we validated that the illuminated hematite exhibited stable light-guided ECL emission in correspondence with the illuminated area, with a spatial resolution of 0.8 μm and a temporal resolution of 1 μs, even over a long period of 6 h. More importantly, this study exemplified the simple yet effective ECL-based approach for electrochemical visualization of local photoelectrochemical processes guided by flexible and dynamic adjustment of light illumination in a spatiotemporally controlled way.
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Affiliation(s)
- Sungeun Han
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun Joo Lee
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Taeyoon Kim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sung Yul Lim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Science, Kyung Hee University, Seoul 02447, Republic of Korea
- KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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4
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Liu X, Sun Y, Song H, Zhang W, Liu T, Chu Z, Gu X, Ma Z, Jin W. Nanomaterials-based electrochemical biosensors for diagnosis of COVID-19. Talanta 2024; 274:125994. [PMID: 38547841 DOI: 10.1016/j.talanta.2024.125994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 03/15/2024] [Accepted: 03/24/2024] [Indexed: 05/04/2024]
Abstract
Since the outbreak of corona virus disease 2019 (COVID-19), this pandemic has caused severe death and infection worldwide. Owing to its strong infectivity, long incubation period, and nonspecific symptoms, the early diagnosis is essential to reduce risk of the severe illness. The electrochemical biosensor, as a fast and sensitive technique for quantitative analysis of body fluids, has been widely studied to diagnose different biomarkers caused at different infective stages of COVID-19 virus (SARS-CoV-2). Recently, many reports have proved that nanomaterials with special architectures and size effects can effectively promote the biosensing performance on the COVID-19 diagnosis, there are few comprehensive summary reports yet. Therefore, in this review, we will pay efforts on recent progress of advanced nanomaterials-facilitated electrochemical biosensors for the COVID-19 detections. The process of SARS-CoV-2 infection in humans will be briefly described, as well as summarizing the types of sensors that should be designed for different infection processes. Emphasis will be supplied to various functional nanomaterials which dominate the biosensing performance for comparison, expecting to provide a rational guidance on the material selection of biosensor construction for people. Finally, we will conclude the perspective on the design of superior nanomaterials-based biosensors facing the unknown virus in future.
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Affiliation(s)
- Xinxin Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Yifan Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Huaiyu Song
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Wei Zhang
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China
| | - Tao Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China.
| | - Zhenyu Chu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China
| | - Xiaoping Gu
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China.
| | - Zhengliang Ma
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, PR China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, NO.30 Puzhu Road(S), Nanjing, 211816, PR China.
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5
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Zhang L, Wahab OJ, Jallow AA, O’Dell ZJ, Pungsrisai T, Sridhar S, Vernon KL, Willets KA, Baker LA. Recent Developments in Single-Entity Electrochemistry. Anal Chem 2024; 96:8036-8055. [PMID: 38727715 PMCID: PMC11112546 DOI: 10.1021/acs.analchem.4c01406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Affiliation(s)
- L. Zhang
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - O. J. Wahab
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - A. A. Jallow
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - Z. J. O’Dell
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - T. Pungsrisai
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - S. Sridhar
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - K. L. Vernon
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - K. A. Willets
- Department
of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - L. A. Baker
- Department
of Chemistry, Texas A&M University, College Station, Texas 77845, United States
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6
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Liu K, Li H, Xie M, Wang P, Jin Z, Liu Y, Zhou M, Li P, Yu G. Thermally Enhanced Relay Electrocatalysis of Nitrate-to-Ammonia Reduction over Single-Atom-Alloy Oxides. J Am Chem Soc 2024; 146:7779-7790. [PMID: 38466142 DOI: 10.1021/jacs.4c00429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The electrochemical nitrate reduction reaction (NO3RR) holds promise for converting nitrogenous pollutants to valuable ammonia products. However, conventional electrocatalysis faces challenges in effectively driving the complex eight-electron and nine-proton transfer process of the NO3RR while also competing with the hydrogen evolution reaction. In this study, we present the thermally enhanced electrocatalysis of nitrate-to-ammonia conversion over nickel-modified copper oxide single-atom alloy oxide nanowires. The catalyst demonstrates improved ammonia production performance with a Faradaic efficiency of approximately 80% and a yield rate of 9.7 mg h-1 cm-2 at +0.1 V versus a reversible hydrogen electrode at elevated cell temperatures. In addition, this thermally enhanced electrocatalysis system displays impressive stability, interference resistance, and favorable energy consumption and greenhouse gas emissions for the simulated industrial wastewater treatment. Complementary in situ analyses confirm that the significantly superior relay of active hydrogen species formed at Ni sites facilitates the thermal-field-coupled electrocatalysis of Cu surface-adsorbed *NOx hydrogenation. Theoretical calculations further support the thermodynamic and kinetic feasibility of the relay catalysis mechanism for the NO3RR over the Ni1Cu model catalyst. This study introduces a conceptual thermal-electrochemistry approach for the synergistic regulation of complex catalytic processes, highlighting the potential of multifield-coupled catalysis to advance sustainable-energy-powered chemical synthesis technologies.
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Affiliation(s)
- Kui Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hongmei Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Minghao Xie
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, the University of Texas at Austin, Austin, Texas 78712, United States
| | - Pengfei Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yuanting Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Min Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, the University of Texas at Austin, Austin, Texas 78712, United States
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7
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Chen C, Jin H, Wang P, Sun X, Jaroniec M, Zheng Y, Qiao SZ. Local reaction environment in electrocatalysis. Chem Soc Rev 2024; 53:2022-2055. [PMID: 38204405 DOI: 10.1039/d3cs00669g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Beyond conventional electrocatalyst engineering, recent studies have unveiled the effectiveness of manipulating the local reaction environment in enhancing the performance of electrocatalytic reactions. The general principles and strategies of local environmental engineering for different electrocatalytic processes have been extensively investigated. This review provides a critical appraisal of the recent advancements in local reaction environment engineering, aiming to comprehensively assess this emerging field. It presents the interactions among surface structure, ions distribution and local electric field in relation to the local reaction environment. Useful protocols such as the interfacial reactant concentration, mass transport rate, adsorption/desorption behaviors, and binding energy are in-depth discussed toward modifying the local reaction environment. Meanwhile, electrode physical structures and reaction cell configurations are viable optimization methods in engineering local reaction environments. In combination with operando investigation techniques, we conclude that rational modifications of the local reaction environment can significantly enhance various electrocatalytic processes by optimizing the thermodynamic and kinetic properties of the reaction interface. We also outline future research directions to attain a comprehensive understanding and effective modulation of the local reaction environment.
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Affiliation(s)
- Chaojie Chen
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Huanyu Jin
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Pengtang Wang
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Xiaogang Sun
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry & Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA
| | - Yao Zheng
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
| | - Shi-Zhang Qiao
- School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia.
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8
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Li H, Li P, Guo Y, Jin Z. Electrochemical Probing the Site Reactivity in Iron Single-Atom Catalysts for Electrocatalytic Nitrate Reduction to Ammonia. Anal Chem 2024; 96:997-1002. [PMID: 38176015 DOI: 10.1021/acs.analchem.3c05095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Single-atom catalysts (SACs), specifically iron single atoms dispersed on nitrogen-doped carbon (Fe-NC), have shown promising potential in the electrocatalytic reduction of nitrate to ammonia (NitRR), but there is a lack of understanding of their intrinsic activity. The conventional measurements often overlook the intrinsic performance of SACs, leading to significant underestimation. This study presents an in situ electrochemical probing protocol, using two poisoning molecules (SCN- and NO2-), to characterize the reactivity of Fe sites in Fe-NC SACs for NitRR. The technique aids in quantifying the yield rate of ammonia on Fe sites and the active site number. The findings reveal the intrinsic turnover frequency (TOF) based on the number and ammonia yield rate of Fe sites, challenging the current understanding of SACs' inherent performances. This unique approach holds considerable potential for determining the intrinsic activity of other SACs in complex reactions, opening new avenues for the exploration of electrocatalytic processes.
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Affiliation(s)
- Hongmei Li
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yong Guo
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China
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9
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Song W, Xiao C, Ding J, Huang Z, Yang X, Zhang T, Mitlin D, Hu W. Review of Carbon Support Coordination Environments for Single Metal Atom Electrocatalysts (SACS). ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2301477. [PMID: 37078970 DOI: 10.1002/adma.202301477] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/08/2023] [Indexed: 05/03/2023]
Abstract
This topical review focuses on the distinct role of carbon support coordination environment of single-atom catalysts (SACs) for electrocatalysis. The article begins with an overview of atomic coordination configurations in SACs, including a discussion of the advanced characterization techniques and simulation used for understanding the active sites. A summary of key electrocatalysis applications is then provided. These processes are oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), nitrogen reduction reaction (NRR), and carbon dioxide reduction reaction (CO2 RR). The review then shifts to modulation of the metal atom-carbon coordination environments, focusing on nitrogen and other non-metal coordination through modulation at the first coordination shell and modulation in the second and higher coordination shells. Representative case studies are provided, starting with the classic four-nitrogen-coordinated single metal atom (MN4 ) based SACs. Bimetallic coordination models including homo-paired and hetero-paired active sites are also discussed, being categorized as emerging approaches. The theme of the discussions is the correlation between synthesis methods for selective doping, the carbon structure-electron configuration changes associated with the doping, the analytical techniques used to ascertain these changes, and the resultant electrocatalysis performance. Critical unanswered questions as well as promising underexplored research directions are identified.
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Affiliation(s)
- Wanqing Song
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Caixia Xiao
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jia Ding
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Zechuan Huang
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xinyi Yang
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Tao Zhang
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - David Mitlin
- Materials Science Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712-1591, USA
| | - Wenbin Hu
- Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
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10
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Zhang P, Liu Y, Liu S, Zhou L, Wu X, Han G, Liu T, Sun K, Li B, Jiang J. Precise Design and Modification Engineering of Single-Atom Catalytic Materials for Oxygen Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305782. [PMID: 37718497 DOI: 10.1002/smll.202305782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/17/2023] [Indexed: 09/19/2023]
Abstract
Due to their unique electronic and structural properties, single-atom catalytic materials (SACMs) hold great promise for the oxygen reduction reaction (ORR). Coordinating environmental and engineering strategies is the key to improving the ORR performance of SACMs. This review summarizes the latest research progress and breakthroughs of SACMs in the field of ORR catalysis. First, the research progress on the catalytic mechanism of SACMs acting on ORR is reviewed, including the latest research results on the origin of SACMs activity and the analysis of pre-adsorption mechanism. The study of the pre-adsorption mechanism is an important breakthrough direction to explore the origin of the high activity of SACMs and the practical and theoretical understanding of the catalytic process. Precise coordination environment modification, including in-plane, axial, and adjacent site modifications, can enhance the intrinsic catalytic activity of SACMs and promote the ORR process. Additionally, several engineering strategies are discussed, including multiple SACMs, high loading, and atomic site confinement. Multiple SACMs synergistically enhance catalytic activity and selectivity, while high loading can provide more active sites for catalytic reactions. Overall, this review provides important insights into the design of advanced catalysts for ORR.
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Affiliation(s)
- Pengxiang Zhang
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Yanyan Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Nanjing, 210042, P. R. China
- College of Science, Henan Agricultural University, 63 Agriculture Road, Zhengzhou, 450002, P. R. China
| | - Shuling Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Limin Zhou
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Guosheng Han
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Tao Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Kang Sun
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Nanjing, 210042, P. R. China
| | - Baojun Li
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, P. R. China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Nanjing, 210042, P. R. China
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11
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Bates JS, Martinez JJ, Hall MN, Al-Omari AA, Murphy E, Zeng Y, Luo F, Primbs M, Menga D, Bibent N, Sougrati MT, Wagner FE, Atanassov P, Wu G, Strasser P, Fellinger TP, Jaouen F, Root TW, Stahl SS. Chemical Kinetic Method for Active-Site Quantification in Fe-N-C Catalysts and Correlation with Molecular Probe and Spectroscopic Site-Counting Methods. J Am Chem Soc 2023; 145:26222-26237. [PMID: 37983387 PMCID: PMC10782517 DOI: 10.1021/jacs.3c08790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Mononuclear Fe ions ligated by nitrogen (FeNx) dispersed on nitrogen-doped carbon (Fe-N-C) serve as active centers for electrocatalytic O2 reduction and thermocatalytic aerobic oxidations. Despite their promise as replacements for precious metals in a variety of practical applications, such as fuel cells, the discovery of new Fe-N-C catalysts has relied primarily on empirical approaches. In this context, the development of quantitative structure-reactivity relationships and benchmarking of catalysts prepared by different synthetic routes and by different laboratories would be facilitated by the broader adoption of methods to quantify atomically dispersed FeNx active centers. In this study, we develop a kinetic probe reaction method that uses the aerobic oxidation of a model hydroquinone substrate to quantify the density of FeNx centers in Fe-N-C catalysts. The kinetic method is compared with low-temperature Mössbauer spectroscopy, CO pulse chemisorption, and electrochemical reductive stripping of NO derived from NO2- on a suite of Fe-N-C catalysts prepared by diverse routes and featuring either the exclusive presence of Fe as FeNx sites or the coexistence of aggregated Fe species in addition to FeNx. The FeNx site densities derived from the kinetic method correlate well with those obtained from CO pulse chemisorption and Mössbauer spectroscopy. The broad survey of Fe-N-C materials also reveals the presence of outliers and challenges associated with each site quantification approach. The kinetic method developed here does not require pretreatments that may alter active-site distributions or specialized equipment beyond reaction vessels and standard analytical instrumentation.
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Affiliation(s)
- Jason S. Bates
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
| | - Jesse J. Martinez
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
| | - Melissa N. Hall
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
| | - Abdulhadi A. Al-Omari
- Department of Chemical and Biomolecular Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
| | - Eamonn Murphy
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, California 92697, USA
| | - Yachao Zeng
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
| | - Fang Luo
- The Electrochemical Catalysis, Energy and Materials Science Laboratory, Department of Chemistry, Technical University Berlin, 10623 Berlin, Germany
| | - Mathias Primbs
- The Electrochemical Catalysis, Energy and Materials Science Laboratory, Department of Chemistry, Technical University Berlin, 10623 Berlin, Germany
| | - Davide Menga
- Chair of Technical Electrochemistry, Department of Chemistry and Catalysis Research Center, Technische Universität München (TUM), 85748 Garching, Germany
| | - Nicolas Bibent
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | | | - Friedrich E. Wagner
- Department of Physics, Technische Universität München (TUM), 85748 Garching, Germany
| | - Plamen Atanassov
- Department of Chemical and Biomolecular Engineering, National Fuel Cell Research Center, University of California, Irvine, California 92697, USA
| | - Gang Wu
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
| | - Peter Strasser
- The Electrochemical Catalysis, Energy and Materials Science Laboratory, Department of Chemistry, Technical University Berlin, 10623 Berlin, Germany
| | - Tim-Patrick Fellinger
- Chair of Technical Electrochemistry, Department of Chemistry and Catalysis Research Center, Technische Universität München (TUM), 85748 Garching, Germany
- Bundesanstalt für Materialforschung und -prüfung (BAM), 12203 Berlin, Germany
| | - Frédéric Jaouen
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34293 Montpellier, France
| | - Thatcher W. Root
- Department of Chemical and Biomolecular Engineering, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
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12
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Lee H, Matthews KC, Zhan X, Warner JH, Ren H. Precision Synthesis of Bimetallic Nanoparticles via Nanofluidics in Nanopipets. ACS NANO 2023; 17:22499-22507. [PMID: 37926957 DOI: 10.1021/acsnano.3c06011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Bimetallic nanoparticles often show properties superior to their single-component counterparts. However, the large parameter space, including size, structure, composition, and spatial arrangement, impedes the discovery of the best nanoparticles for a given application. High-throughput methods that can control the composition and spatial arrangement of the nanoparticles are desirable for accelerated materials discovery. Herein, we report a methodology for synthesizing bimetallic alloy nanoparticle arrays with precise control over their composition and spatial arrangement. A dual-channel nanopipet is used, and nanofluidic control in the nanopipet further enables precise tuning of the electrodeposition rate of each element, which determines the final composition of the nanoparticle. The composition control is validated by finite element simulation as well as electrochemical and elemental analyses. The scope of the particles demonstrated includes Cu-Ag, Cu-Pt, Au-Pt, Cu-Pb, and Co-Ni. We further demonstrate surface patterning using Cu-Ag alloys with precise control of the location and composition of each pixel. Additionally, combining the nanoparticle alloy synthesis method with scanning electrochemical cell microscopy (SECCM) allows for fast screening of electrocatalysts. The method is generally applicable for synthesizing metal nanoparticles that can be electrodeposited, which is important toward developing automated synthesis and screening systems for accelerated material discovery in electrocatalysis.
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Affiliation(s)
- Heekwon Lee
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Kevin C Matthews
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Xun Zhan
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jamie H Warner
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
- Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Hang Ren
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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13
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Sun F, Gao Y, Li M, Wen Y, Fang Y, Meyer TJ, Shan B. Molecular Self-Assembly in Conductive Covalent Networks for Selective Nitrate Electroreduction to Ammonia. J Am Chem Soc 2023; 145:21491-21501. [PMID: 37733833 DOI: 10.1021/jacs.3c07320] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Electrochemical nitrate (NO3-) reduction in aqueous media provides a useful approach for ammonia (NH3) synthesis. While efforts are focused on developing catalysts, the local microenvironment surrounding the catalyst centers is of great importance for controlling electrocatalytic performance. Here, we demonstrate that a self-assembled molecular iron catalyst integrated in a free-standing conductive hydrogel is capable of selective production of NH3 from NO3- at efficiencies approaching unity. With the electrocatalytic hydrogel, the NH3 selectivity is consistently high under a range of negative biases, which results from the hydrophobicity increase of the polycarbazole-based electrode substrate. In mildly acidic media, proton reduction is suppressed by electro-dewetting of the hydrogel electrode, enhancing the selectivity of NO3- reduction. The electrocatalytic hydrogel is capable of continuous production of NH3 for at least 100 h with NH3 selectivity of ∼89 to 98% at high current densities. Our results highlight the role of constructing an internal hydrophobic surface for electrocatalysts in controlling selectivity in aqueous media.
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Affiliation(s)
- Feiqing Sun
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Yifan Gao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Mengjie Li
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Yingke Wen
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Yanjie Fang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Thomas J Meyer
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Bing Shan
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Excited-State Materials of Zhejiang Province, Hangzhou 310058, China
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14
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Gao T, Qiu L, Xie M, Jin Z, Li P, Yu G. Defect-stabilized and oxygen-coordinated iron single-atom sites facilitate hydrogen peroxide electrosynthesis. MATERIALS HORIZONS 2023; 10:4270-4277. [PMID: 37556212 DOI: 10.1039/d3mh00882g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
The selective two-electron electrochemical oxygen reduction reaction (ORR) for hydrogen peroxide (H2O2) production is a promising and green alternative method to the current energy-intensive anthraquinone process used in industry. In this study, we develop a single-atom catalyst (CNT-D-O-Fe) by anchoring defect-stabilized and oxygen-coordinated iron atomic sites (Fe-O4) onto porous carbon nanotubes using a local etching strategy. Compared to O-doped CNTs with vacancy defects (CNT-D-O) and oxygen-coordinated Fe single-atom site modifying CNTs without a porous structure (CNT-O-Fe), CNT-D-O-Fe exhibits the highest H2O2 selectivity of 94.4% with a kinetic current density of 13.4 mA cm-2. Fe-O4 single-atom sites in the catalyst probably contribute to the intrinsic reactivity for the two-electron transfer process while vacancy defects greatly enhance the electrocatalytic stability. Theoretical calculations further support that the coordinated environment and defective moiety in CNT-D-O-Fe could efficiently optimize the adsorption strength of the *OOH intermediate over the Fe single atomic active sites. This contribution sheds light on the potential of defect-stabilized and oxygen-coordinated single-atom metal sites as a promising avenue for the rational design of highly efficient and selective catalysts towards various electrocatalytic reactions.
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Affiliation(s)
- Taotao Gao
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China.
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Lu Qiu
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Minghao Xie
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, USA.
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China.
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, USA.
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15
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Wei H, Shao S, Deng B, Xue Y, Chen W, Yin L, Lin Y, Hussain N, Wu X, Ge B, Zheng F, Li G, Liu LM, Wu H. Generalized Rapid Synthesis of Supported Nanocluster Catalyst for Mild Hydrogenation of Phenol toward KA Oil. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207759. [PMID: 37150859 DOI: 10.1002/smll.202207759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 02/05/2023] [Indexed: 05/09/2023]
Abstract
Homogeneous and nanometric metal clusters with unique electronic structures are promising for catalysis, however, common synthesis techniques for metal clusters suffer from large size and even metal nanocrystals attributing to their high surface energy and unsaturated configurations. Herein, a generalized rapid annealing strategy for synthesizing a series of supported metal clusters as superior catalysts is developed. Remarkably, TiO2 supported platinum nanoclusters (Pt NC/TiO2 ) exhibits the excellent catalytic activity to realize phenol hydrogenation under mild conditions. The complete phenol conversion rate and 100% selectivity toward KA oil are achieved in aqueous solution at room temperature and normal pressure. Semi-continuous scale up production of KA oil is successfully performed under mild conditions. Such excellent performance mainly originates from the partial reconstruction of Pt NC/TiO2 in aqueous phenol solution. Considering that the phenol can be produced from lignin, this study underpins a facile, sustainable, and economical route to synthesize nylon from biomass.
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Affiliation(s)
- Hehe Wei
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Key Laboratory for Advanced Materials, Center for Computational Chemistry and Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shengxian Shao
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bohan Deng
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Yufeng Xue
- School of Physics, Beihang University, Beijing, 100191, China
| | - Wenxing Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Linlin Yin
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Yunxiang Lin
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Naveed Hussain
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Xiaodong Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Binghui Ge
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Fengbin Zheng
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Guodong Li
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li-Min Liu
- School of Physics, Beihang University, Beijing, 100191, China
| | - Hui Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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16
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Hu H, Zhao Y, Zhang Y, Xi J, Xiao J, Cao S. Performance Regulation of Single-Atom Catalyst by Modulating the Microenvironment of Metal Sites. Top Curr Chem (Cham) 2023; 381:24. [PMID: 37480375 DOI: 10.1007/s41061-023-00434-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 07/01/2023] [Indexed: 07/24/2023]
Abstract
Metal-based catalysts, encompassing both homogeneous and heterogeneous types, play a vital role in the modern chemical industry. Heterogeneous metal-based catalysts usually possess more varied catalytically active centers than homogeneous catalysts, making it challenging to regulate their catalytic performance. In contrast, homogeneous catalysts have defined active-site structures, and their performance can be easily adjusted by modifying the ligand. These characteristics lead to remarkable conceptual and technical differences between homogeneous and heterogeneous catalysts. As a recently emerging class of catalytic material, single-atom catalysts (SACs) have become one of the most active new frontiers in the catalysis field and show great potential to bridge homogeneous and heterogeneous catalytic processes. This review documents a brief introduction to SACs and their role in a range of reactions involving single-atom catalysis. To fully understand process-structure-property relationships of single-atom catalysis in chemical reactions, active sites or coordination structure and performance regulation strategies (e.g., tuning chemical and physical environment of single atoms) of SACs are comprehensively summarized. Furthermore, we discuss the application limitations, development trends and future challenges of single-atom catalysis and present a perspective on further constructing a highly efficient (e.g., activity, selectivity and stability), single-atom catalytic system for a broader scope of reactions.
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Affiliation(s)
- Hanyu Hu
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China
| | - Yanyan Zhao
- Rowland Institute at Harvard, Cambridge, MA, 02142, USA
| | - Yue Zhang
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China
| | - Jiangbo Xi
- School of Chemistry and Environmental Engineering, Key Laboratory of Green Chemical Engineering Process of Ministry of Education, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Key Laboratory of Novel Biomass-Based Environmental and Energy Materials in Petroleum and Chemical Industry, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Wuhan Institute of Technology, Wuhan, 430073, People's Republic of China.
| | - Jian Xiao
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, People's Republic of China.
| | - Sufeng Cao
- Aramco Boston Research Center, Cambridge, MA, 02139, USA.
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17
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Zeng Y, Zhao J, Wang S, Ren X, Tan Y, Lu YR, Xi S, Wang J, Jaouen F, Li X, Huang Y, Zhang T, Liu B. Unraveling the Electronic Structure and Dynamics of the Atomically Dispersed Iron Sites in Electrochemical CO 2 Reduction. J Am Chem Soc 2023. [PMID: 37418344 DOI: 10.1021/jacs.3c05457] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2023]
Abstract
Single-atom catalysts with a well-defined metal center open unique opportunities for exploring the catalytically active site and reaction mechanism of chemical reactions. However, understanding of the electronic and structural dynamics of single-atom catalytic centers under reaction conditions is still limited due to the challenge of combining operando techniques that are sensitive to such sites and model single-atom systems. Herein, supported by state-of-the-art operando techniques, we provide an in-depth study of the dynamic structural and electronic evolution during the electrochemical CO2 reduction reaction (CO2RR) of a model catalyst comprising iron only as a high-spin (HS) Fe(III)N4 center in its resting state. Operando 57Fe Mössbauer and X-ray absorption spectroscopies clearly evidence the change from a HS Fe(III)N4 to a HS Fe(II)N4 center with decreasing potential, CO2- or Ar-saturation of the electrolyte, leading to different adsorbates and stability of the HS Fe(II)N4 center. With operando Raman spectroscopy and cyclic voltammetry, we identify that the phthalocyanine (Pc) ligand coordinating the iron cation center undergoes a redox process from Fe(II)Pc to Fe(II)Pc-. Altogether, the HS Fe(II)Pc- species is identified as the catalytic intermediate for CO2RR. Furthermore, theoretical calculations reveal that the electroreduction of the Pc ligand modifies the d-band center of the in situ generated HS Fe(II)Pc- species, resulting in an optimal binding strength to CO2 and thus boosting the catalytic performance of CO2RR. This work provides both experimental and theoretical evidence toward the electronic structural and dynamics of reactive sites in single-Fe-atom materials and shall guide the design of novel efficient catalysts for CO2RR.
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Affiliation(s)
- Yaqiong Zeng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jian Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Shifu Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P.R. China
| | - Xinyi Ren
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yuanlong Tan
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Ying-Rui Lu
- National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, A*STAR, Singapore 627833, Singapore
| | - Junhu Wang
- Center for Advanced Mössbauer Spectroscopy, Mössbauer Effect Data Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Frédéric Jaouen
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Xuning Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yanqiang Huang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Tao Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Bin Liu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR 999077, China
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18
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Li P, Liao L, Fang Z, Su G, Jin Z, Yu G. A multifunctional copper single-atom electrocatalyst aerogel for smart sensing and producing ammonia from nitrate. Proc Natl Acad Sci U S A 2023; 120:e2305489120. [PMID: 37339226 PMCID: PMC10293845 DOI: 10.1073/pnas.2305489120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/18/2023] [Indexed: 06/22/2023] Open
Abstract
Despite modern chemistry's success in providing affordable fertilizers for feeding the population and supporting the ammonia industry, ineffective nitrogen management has led to pollution of water resources and air, contributing to climate change. Here, we report a multifunctional copper single-atom electrocatalyst-based aerogel (Cu SAA) that integrates the multiscale structure of coordinated single-atomic sites and 3D channel frameworks. The Cu SAA demonstrates an impressive faradaic efficiency of 87% for NH3 synthesis, as well as remarkable sensing performance with detection limits of 0.15 ppm for NO3- and 1.19 ppm for NH4+. These multifunctional features enable precise control and conversion of nitrate to ammonia in the catalytic process, facilitating accurate regulation of the ammonium and nitrate ratios in fertilizers. We thus designed the Cu SAA into a smart and sustainable fertilizing system (SSFS), a prototype device for on-site automatic recycling of nutrients with precisely controlled nitrate/ammonium concentrations. The SSFS represents a forward step toward sustainable nutrient/waste recycling, thus permitting efficient nitrogen utilization of crops and mitigating pollutant emissions. This contribution exemplifies how electrocatalysis and nanotechnology can be potentially leveraged to enable sustainable agriculture.
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Affiliation(s)
- Panpan Li
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX78712
- College of Materials Science and Engineering, Sichuan University, Chengdu610065, China
| | - Ling Liao
- College of Horticulture and College of Science, Sichuan Agricultural University, Chengdu611130, China
| | - Zhiwei Fang
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX78712
| | - Gehong Su
- College of Horticulture and College of Science, Sichuan Agricultural University, Chengdu611130, China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu610054, China
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX78712
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19
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Qiu W, Xie M, Wang P, Gao T, Li R, Xiao D, Jin Z, Li P. Size-Defined Ru Nanoclusters Supported by TiO 2 Nanotubes Enable Low-Concentration Nitrate Electroreduction to Ammonia with Suppressed Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300437. [PMID: 37029572 DOI: 10.1002/smll.202300437] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/28/2023] [Indexed: 06/19/2023]
Abstract
Anthropogenic nitrate pollution has an adverse impact on the environment and human health. As part of a sustainable nitrate management strategy, electrochemical denitrification is studied as an innovative strategy for nutrients recycling and recovering. It is, however, challenging to selectively electro-reduce nitrate with low-concentration for ammonia. Herein, the photo-deposition of size-defined Ru nanoclusters (NCs, average size: ≈1.66 nm) on TiO2 nanotubes (NTs) is demonstrated, which show improved performance for nitrate-to-ammonia electroreduction with a maximum yield rate of ≈600 µg h-1 cm-2 and a faradic efficiency (FE) of > 90.0% across a broad range of potentials in comparison with electrodeposited Ru nanoparticles (NPs, average size: ≈23.78 nm) on TiO2 NTs. Experimental and theoretical evidence further suggests the small-size Ru NCs with the intrinsically enhanced selectivity and activity because of the strong metal/substrate interaction and unsaturated coordination state. The findings highlight the size effect on Ru-based catalyst supported on metal oxides, a versatile catalytic model, which allows the regulation of hydrogen adsorption to favor ammonia production over the competing hydrogen evolution reaction.
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Affiliation(s)
- Wenxi Qiu
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Minghao Xie
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas, 78712, USA
| | - Pengfei Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, P. R. China
| | - Taotao Gao
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Ran Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Dan Xiao
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, P. R. China
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20
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Jin Z. High-Spatiotemporal-Resolution Electrochemical Measurements of Electrocatalytic Reactivity. Anal Chem 2023; 95:6477-6489. [PMID: 37023363 DOI: 10.1021/acs.analchem.2c05755] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
The real-time measurement of the individual or local electrocatalytic reactivity of catalyst particles instead of ensemble behavior is considerably challenging but very critical to uncover fundamental insights into catalytic mechanisms. Recent remarkable efforts have been made to the development of high-spatiotemporal-resolution electrochemical techniques, which allow the imaging of the topography and reactivity of fast electron-transfer processes at the nanoscale. This Perspective summarizes emerging powerful electrochemical measurement techniques for studying various electrocatalytic reactions on different types of catalysts. Principles of scanning electrochemical microscopy, scanning electrochemical cell microscopy, single-entity measurement, and molecular probing technique have been discussed for the purpose of measuring important parameters in electrocatalysis. We further demonstrate recent advances in these techniques that reveal quantitative information about the thermodynamic and kinetic properties of catalysts for various electrocatalytic reactions associated with our perspectives. Future research on the next-generation electrochemical techniques is anticipated to be focused on the development of instrumentation, correlative multimodal techniques, and new applications, thus enabling new opportunities for elucidating structure-reactivity relationships and dynamic information at the single active-site level.
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Affiliation(s)
- Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
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21
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Li P, Li R, Liu Y, Xie M, Jin Z, Yu G. Pulsed Nitrate-to-Ammonia Electroreduction Facilitated by Tandem Catalysis of Nitrite Intermediates. J Am Chem Soc 2023; 145:6471-6479. [PMID: 36897656 DOI: 10.1021/jacs.3c00334] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Electroreduction of nitrate to ammonia offers a promising pathway for nutrient recycling and recovery from wastewater with energy and environmental sustainability. There have been considerable efforts on the regulation of reaction pathways to facilitate nitrate-to-ammonia conversion over the competing hydrogen evolution reaction but only with limited success. Here, we report a Cu single-atom gel (Cu SAG) electrocatalyst that produces NH3 from both nitrate and nitrite under neutral conditions. Given the unique mechanism of NO2- activation on Cu SAGs with spatial confinement and strengthened kinetics, a pulse electrolysis strategy is presented to cascade the accumulation and conversion of NO2- intermediates during NO3- reduction with the prohibited competition from the hydrogen evolution reaction, thus substantially enhancing the Faradaic efficiency and the yield rate for ammonia production compared with constant potential electrolysis. This work underlines the cooperative approach of the pulse electrolysis and SAGs with three-dimensional (3D) framework structures for highly efficient nitrate-to-ammonia conversion enabled by tandem catalysis of unfavorable intermediates.
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Affiliation(s)
- Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Ran Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Yuanting Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Minghao Xie
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
| | - Guihua Yu
- Materials Science and Engineering Program and Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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22
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Li W, Liu C, Gu C, Choi JH, Wang S, Jiang J. Interlayer Charge Transfer Regulates Single-Atom Catalytic Activity on Electride/Graphene 2D Heterojunctions. J Am Chem Soc 2023; 145:4774-4783. [PMID: 36802572 DOI: 10.1021/jacs.2c13596] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Single-atom catalysts with structure and activity tunability have attracted significant attention for energy and environmental applications. Herein we present a first-principles study of single-atom catalysis on two-dimensional graphene and electride heterostructures. The anion electron gas in the electride layer enables a colossal electron transfer to the graphene layer, with the degree of transfer being controllable by the selection of electride. The charge transfer tunes the d-orbital electron occupancy of a single metal atom, enhancing the catalytic activity of hydrogen evolution reactions and oxygen reduction reactions. The strong correlation between the adsorption energy Eads and the charge variation Δq suggests that interfacial charge transfer is a critical catalytic descriptor for the heterostructure-based catalysts. The polynomial regression model proves the importance of charge transfer and accurately predicts the adsorption energy of ions and molecules. This study provides a strategy to obtain high-efficiency single-atom catalysts using two-dimensional heterostructures.
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Affiliation(s)
- Wei Li
- Gusu Laboratory of Materials, Suzhou, Jiangsu 215123, People's Republic of China.,Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Cong Liu
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, People's Republic of China
| | - Chenkai Gu
- Gusu Laboratory of Materials, Suzhou, Jiangsu 215123, People's Republic of China.,Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Jin-Ho Choi
- College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, People's Republic of China
| | - Song Wang
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Jun Jiang
- Gusu Laboratory of Materials, Suzhou, Jiangsu 215123, People's Republic of China.,Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.,Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, People's Republic of China
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23
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Zhao J, Lian J, Zhao Z, Wang X, Zhang J. A Review of In-Situ Techniques for Probing Active Sites and Mechanisms of Electrocatalytic Oxygen Reduction Reactions. NANO-MICRO LETTERS 2022; 15:19. [PMID: 36580130 PMCID: PMC9800687 DOI: 10.1007/s40820-022-00984-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 11/16/2022] [Indexed: 06/03/2023]
Abstract
Electrocatalytic oxygen reduction reaction (ORR) is one of the most important reactions in electrochemical energy technologies such as fuel cells and metal-O2/air batteries, etc. However, the essential catalysts to overcome its slow reaction kinetic always undergo a complex dynamic evolution in the actual catalytic process, and the concomitant intermediates and catalytic products also occur continuous conversion and reconstruction. This makes them difficult to be accurately captured, making the identification of ORR active sites and the elucidation of ORR mechanisms difficult. Thus, it is necessary to use extensive in-situ characterization techniques to proceed the real-time monitoring of the catalyst structure and the evolution state of intermediates and products during ORR. This work reviews the major advances in the use of various in-situ techniques to characterize the catalytic processes of various catalysts. Specifically, the catalyst structure evolutions revealed directly by in-situ techniques are systematically summarized, such as phase, valence, electronic transfer, coordination, and spin states varies. In-situ revelation of intermediate adsorption/desorption behavior, and the real-time monitoring of the product nucleation, growth, and reconstruction evolution are equally emphasized in the discussion. Other interference factors, as well as in-situ signal assignment with the aid of theoretical calculations, are also covered. Finally, some major challenges and prospects of in-situ techniques for future catalysts research in the ORR process are proposed.
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Affiliation(s)
- Jinyu Zhao
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Jie Lian
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Zhenxin Zhao
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China
| | - Xiaomin Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.
| | - Jiujun Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, People's Republic of China.
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, People's Republic of China.
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24
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Gao T, Tang X, Li X, Wu S, Yu S, Li P, Xiao D, Jin Z. Understanding the Atomic and Defective Interface Effect on Ruthenium Clusters for the Hydrogen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Taotao Gao
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, People’s Republic of China
| | - Xiangmin Tang
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, People’s Republic of China
| | - Xiaoqin Li
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, People’s Republic of China
| | - Shuaiwei Wu
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, People’s Republic of China
| | - Shumin Yu
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, People’s Republic of China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu, 610065, People’s Republic of China
| | - Dan Xiao
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, People’s Republic of China
- College of Chemical Engineering, Sichuan University, Chengdu, 610065, People’s Republic of China
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, People’s Republic of China
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25
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Xiao XY, Zhao YH, Li YY, Song ZY, Chen SH, Huang HQ, Yang M, Li PH, Huang XJ. General Strategies to Construct Highly Efficient Sensing Interfaces for Metal Ions Detection from the Perspective of Catalysis. Anal Chem 2022; 94:13631-13641. [PMID: 36150119 DOI: 10.1021/acs.analchem.2c01797] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Constructing high-effective electrode sensing interfaces has been considered an effective method for electrochemical detection toward heavy metal ions (HMIs). However, most research has been devoted to enhancing the stripping currents of HMIs by simply improving the adsorptive capacity and conductivity of the electrode modified materials, while lacking theoretical guidelines in fabricating catalytic sensing interfaces. Besides, the understanding of detection mechanisms is quite unscientific from the perspective of catalysis. This perspective summarizes five general strategies in designing highly efficient sensing interfaces in the recent five years, including modulating crystal phases, orientations and planes, defect engineering, ionic valence state cycle engineering, adsorption in situ catalysis strategy, and construction of atomic level catalytic active sites. What's more, the catalytic mechanisms for improving the signals of HMIs, such as boosting the electron transfer rates and conversion rates, lowering the energy barriers, etc., are introduced and emphasized. This study has a great significance in directionally controlling functionalized electrochemical sensors to achieve excellent sensitivity and selectivity in detecting environmental pollutants from the view of catalysis, and it also brings enlightenments and guidance to develop new electroanalytical methods.
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Affiliation(s)
- Xiang-Yu Xiao
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yong-Huan Zhao
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yong-Yu Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, P. R. China
| | - Zong-Yin Song
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Shi-Hua Chen
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hong-Qi Huang
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Meng Yang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Pei-Hua Li
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Xing-Jiu Huang
- Key Laboratory of Environmental Optics and Technology, and Environmental Materials and Pollution Control Laboratory, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
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26
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Snitkoff-Sol RZ, Elbaz L. Assessing and measuring the active site density of PGM-free ORR catalysts. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05236-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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27
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Luo Y, Li P, Jin Z. Lithiated interface of Pt/TiO 2 enables an efficient wire-shaped Zn-Air solar micro-battery. Chem Commun (Camb) 2022; 58:5988-5991. [PMID: 35481964 DOI: 10.1039/d2cc01875f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We report a wire-shaped bifunctional oxygen photoelectrode by integrating Li-doped TiO2 nanotubes and Pt nanoclusters. Conductive nanoshells have been identified at the lithiated interface of Pt/TiO2, which facilitates the performance of oxygen catalysis. Thus, the assembled Zn-air micro-battery with solar-assisted charging greatly improves the voltage efficiency compared with the conventional state-of-the-art catalyst as the air electrode.
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Affiliation(s)
- Yao Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu 610041, P. R. China
| | - Panpan Li
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, P. R. China.
| | - Zhaoyu Jin
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
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28
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Li H, Xie B, Hu C, Liu M, Xiao D. Reduced graphene oxide-supported CuO nanoparticles with synergistically enhanced electrocatalytic activity for nitric oxide sensing. Analyst 2022; 147:5187-5193. [DOI: 10.1039/d2an01134d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This work reports a NO electrochemical sensor based on rGO/CuO composites with excellent electrochemical performance.
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Affiliation(s)
- Hongmei Li
- College of Chemical, Sichuan University, Chengdu 610064, China
| | - Bo Xie
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Chunqiong Hu
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Mengyao Liu
- College of Chemical, Sichuan University, Chengdu 610064, China
| | - Dan Xiao
- College of Chemical, Sichuan University, Chengdu 610064, China
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
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