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Chepkasov IV, Radina AD, Kvashnin AG. Structure-driven tuning of catalytic properties of core-shell nanostructures. NANOSCALE 2024; 16:5870-5892. [PMID: 38450538 DOI: 10.1039/d3nr06194a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The annual increase in demand for renewable energy is driving the development of catalysis-based technologies that generate, store and convert clean energy by splitting and forming chemical bonds. Thanks to efforts over the last two decades, great progress has been made in the use of core-shell nanostructures to improve the performance of metallic catalysts. The successful preparation and application of a large number of bimetallic core-shell nanocrystals demonstrates the wide range of possibilities they offer and suggests further advances in this field. Here, we have reviewed recent advances in the synthesis and study of core-shell nanostructures that are promising for catalysis. Particular attention has been paid to the structural tuning of the catalytic properties of core-shell nanostructures and to theoretical methods capable of describing their catalytic properties in order to efficiently search for new catalysts with desired properties. We have also identified the most promising areas of research in this field, in terms of experimental and theoretical studies, and in terms of promising materials to be studied.
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Affiliation(s)
- Ilya V Chepkasov
- Skolkovo Institute of Science and Technology, 121205, Bolshoi Blv. 30, Building 1, Moscow, Russia.
| | - Aleksandra D Radina
- Skolkovo Institute of Science and Technology, 121205, Bolshoi Blv. 30, Building 1, Moscow, Russia.
| | - Alexander G Kvashnin
- Skolkovo Institute of Science and Technology, 121205, Bolshoi Blv. 30, Building 1, Moscow, Russia.
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2
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Lim C, Fairhurst AR, Ransom BJ, Haering D, Stamenkovic VR. Role of Transition Metals in Pt Alloy Catalysts for the Oxygen Reduction Reaction. ACS Catal 2023; 13:14874-14893. [PMID: 38026811 PMCID: PMC10660348 DOI: 10.1021/acscatal.3c03321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/26/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023]
Abstract
In pursuit of higher activity and stability of electrocatalysts toward the oxygen reduction reaction, it has become standard practice to alloy platinum in various structural configurations. Transition metals have been extensively studied for their ability to tune catalyst functionality through strain, ligand, and ensemble effects. The origin of these effects and potential for synergistic application in practical materials have been the subject of many theoretical and experimental analyses in recent years. Here, a comprehensive overview of these phenomena is provided regarding the impact on reaction mechanisms and kinetics through combined experimental and theoretical approaches. Experimental approaches to electrocatalysis are discussed.
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Affiliation(s)
- Chaewon Lim
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, California 92697, United States
- HORIBA
Institute for Mobility and Connectivity, University of California, Irvine, California 92697, United States
| | - Alasdair R. Fairhurst
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, California 92697, United States
- HORIBA
Institute for Mobility and Connectivity, University of California, Irvine, California 92697, United States
| | - Benjamin J. Ransom
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, California 92697, United States
- HORIBA
Institute for Mobility and Connectivity, University of California, Irvine, California 92697, United States
| | - Dominik Haering
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, California 92697, United States
- HORIBA
Institute for Mobility and Connectivity, University of California, Irvine, California 92697, United States
| | - Vojislav R. Stamenkovic
- Department
of Chemical & Biomolecular Engineering, University of California, Irvine, California 92697, United States
- HORIBA
Institute for Mobility and Connectivity, University of California, Irvine, California 92697, United States
- Department
of Chemistry, University of California, Irvine, California 92697, United States
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Abstract
Adsorption energy (AE) of reactive intermediate is currently the most important descriptor for electrochemical reactions (e.g., water electrolysis, hydrogen fuel cell, electrochemical nitrogen fixation, electrochemical carbon dioxide reduction, etc.), which can bridge the gap between catalyst's structure and activity. Tracing the history and evolution of AE can help to understand electrocatalysis and design optimal electrocatalysts. Focusing on oxygen electrocatalysis, this review aims to provide a comprehensive introduction on how AE is selected as the activity descriptor, the intrinsic and empirical relationships related to AE, how AE links the structure and electrocatalytic performance, the approaches to obtain AE, the strategies to improve catalytic activity by modulating AE, the extrinsic influences on AE from the environment, and the methods in circumventing linear scaling relations of AE. An outlook is provided at the end with emphasis on possible future investigation related to the obstacles existing between adsorption energy and electrocatalytic performance.
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Affiliation(s)
- Junming Zhang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Hong Bin Yang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Daojin Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,Department of Electrical and Computer Engineering, University of Toronto, 35 St. George Street, Toronto, Ontario M5S 1A4, Canada
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
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4
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Architecture Evolution of Different Nanoparticles Types: Relationship between the Structure and Functional Properties of Catalysts for PEMFC. Catalysts 2022. [DOI: 10.3390/catal12060638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
This review considers the features of the catalysts with different nanoparticle structures architecture transformation under the various pre-treatment types. Based on the results of the publications analysis, it can be concluded that the chemical or electrochemical activation of bimetallic catalysts has a significant effect on their composition, microstructure, and catalytic activity in the oxygen reduction reaction. The stage of electrochemical activation is recommended for use as a mandatory catalyst pre-treatment to obtain highly active de-alloyed materials. The literature is studied, which covers possible variants of the structural modification under the influence of thermal treatment under different processing conditions. Additionally, based on the literature data analysis, recommendations are given for the thermal treatment of catalysts alloyed with various d-metals.
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5
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Lee E, Kuttiyiel KA, Kim KH, Jang J, Lee HJ, Lee JM, Seo MH, Yang TH, Yim SD, Vargas JA, Petkov V, Sasaki K, Adzic RR, Park GG. High Pressure Nitrogen-Infused Ultrastable Fuel Cell Catalyst for Oxygen Reduction Reaction. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00395] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eunjik Lee
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Kurian A. Kuttiyiel
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Kyoung-Hee Kim
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Jeongyun Jang
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Hyo J. Lee
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Jong M. Lee
- Fuel Cell Research & Demonstration Center, Korea Institute of Energy Research, Buan-gun, Jeollabuk-do 56332, South Korea
| | - Min H. Seo
- Fuel Cell Research & Demonstration Center, Korea Institute of Energy Research, Buan-gun, Jeollabuk-do 56332, South Korea
| | - Tae-Hyun Yang
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Sung-Dae Yim
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
| | - Jorge A. Vargas
- Department of Physics and Science of Advanced Materials Program, Central Michigan University, Mount Pleasant, Michigan 48859, United States
- Unidad Académica de Física, Universidad Autónoma de Zacatecas, Zacatecas 98098, Mexico
| | - Valeri Petkov
- Department of Physics and Science of Advanced Materials Program, Central Michigan University, Mount Pleasant, Michigan 48859, United States
| | - Kotaro Sasaki
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Radoslav R. Adzic
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Gu-Gon Park
- Fuel Cell Laboratory, Korea Institute of Energy Research, Daejeon 34129, South Korea
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6
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Gautam RP, Lee YT, Herman GL, Moreno CM, Tse ECM, Barile CJ. Controlling Proton and Electron Transfer Rates to Enhance the Activity of an Oxygen Reduction Electrocatalyst. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rajendra P. Gautam
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Yi Teng Lee
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Gabriel L. Herman
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Cynthia M. Moreno
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Edmund C. M. Tse
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR Hong Kong
| | - Christopher J. Barile
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
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7
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Gautam RP, Lee YT, Herman GL, Moreno CM, Tse ECM, Barile CJ. Controlling Proton and Electron Transfer Rates to Enhance the Activity of an Oxygen Reduction Electrocatalyst. Angew Chem Int Ed Engl 2018; 57:13480-13483. [DOI: 10.1002/anie.201806795] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 08/14/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Rajendra P. Gautam
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Yi Teng Lee
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Gabriel L. Herman
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Cynthia M. Moreno
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
| | - Edmund C. M. Tse
- Department of Chemistry; The University of Hong Kong; Pokfulam Road Hong Kong SAR Hong Kong
| | - Christopher J. Barile
- Department of Chemistry; University of Nevada, Reno; 1664 N. Virginia St. Reno NV 89557 USA
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8
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Xu L, Stangland EE, Mavrikakis M. Ethylene versus ethane: A DFT-based selectivity descriptor for efficient catalyst screening. J Catal 2018. [DOI: 10.1016/j.jcat.2018.03.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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9
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Luo J, Tian X, Zeng J, Li Y, Song H, Liao S. Limitations and Improvement Strategies for Early-Transition-Metal Nitrides as Competitive Catalysts toward the Oxygen Reduction Reaction. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01618] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junming Luo
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Xinlong Tian
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Jianhuang Zeng
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Yingwei Li
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Huiyu Song
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Shijun Liao
- The Key Laboratory of Fuel Cell Technology of Guangdong Province & The Key Laboratory of New Energy Technology of Guangdong Universities, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
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10
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Zhang L, Zhou G. Availability of surface boron species in improved oxygen reduction activity of Pt catalysts: A first-principles study. J Chem Phys 2016; 144:144706. [DOI: 10.1063/1.4946030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
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12
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Wang X, Choi SI, Roling LT, Luo M, Ma C, Zhang L, Chi M, Liu J, Xie Z, Herron JA, Mavrikakis M, Xia Y. Palladium-platinum core-shell icosahedra with substantially enhanced activity and durability towards oxygen reduction. Nat Commun 2015; 6:7594. [PMID: 26133469 PMCID: PMC4506534 DOI: 10.1038/ncomms8594] [Citation(s) in RCA: 267] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/21/2015] [Indexed: 12/22/2022] Open
Abstract
Conformal deposition of platinum as ultrathin shells on facet-controlled palladium nanocrystals offers a great opportunity to enhance the catalytic performance while reducing its loading. Here we report such a system based on palladium icosahedra. Owing to lateral confinement imposed by twin boundaries and thus vertical relaxation only, the platinum overlayers evolve into a corrugated structure under compressive strain. For the core-shell nanocrystals with an average of 2.7 platinum overlayers, their specific and platinum mass activities towards oxygen reduction are enhanced by eight- and sevenfold, respectively, relative to a commercial catalyst. Density functional theory calculations indicate that the enhancement can be attributed to the weakened binding of hydroxyl to the compressed platinum surface supported on palladium. After 10,000 testing cycles, the mass activity of the core-shell nanocrystals is still four times higher than the commercial catalyst. These results demonstrate an effective approach to the development of electrocatalysts with greatly enhanced activity and durability. Core-shell catalysts can enhance activity while reducing the loading of expensive catalyst materials. Here, the authors report a palladium@platinum system in which the platinum shells evolve into a corrugated structure with compressive strains, with subsequent enhancement of oxygen reduction activity.
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Affiliation(s)
- Xue Wang
- 1] Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA [2] State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian 361005, China [3] Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China
| | - Sang-Il Choi
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA
| | - Luke T Roling
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Ming Luo
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA
| | - Cheng Ma
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Lei Zhang
- 1] Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA [2] State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian 361005, China [3] Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China
| | - Miaofang Chi
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Jingyue Liu
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - Zhaoxiong Xie
- 1] State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, Fujian 361005, China [2] Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China
| | - Jeffrey A Herron
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Younan Xia
- 1] Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, USA [2] School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, USA [3] School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
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Chen C, Kang Y, Huo Z, Zhu Z, Huang W, Xin HL, Snyder JD, Li D, Herron JA, Mavrikakis M, Chi M, More KL, Li Y, Markovic NM, Somorjai GA, Yang P, Stamenkovic VR. Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces. Science 2014; 343:1339-43. [DOI: 10.1126/science.1249061] [Citation(s) in RCA: 2051] [Impact Index Per Article: 205.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Ramaker DE, Korovina A, Croze V, Melke J, Roth C. Following ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy. Phys Chem Chem Phys 2014; 16:13645-53. [DOI: 10.1039/c4cp00192c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In operando X-ray absorption spectroscopy data using the Δμ X-ray Absorption Near Edge Spectroscopy (XANES) analysis procedure is used to follow the ORR intermediate adsorbate coverage on a working catalyst in a PEMFC during initial activation and break-in.
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Affiliation(s)
- D. E. Ramaker
- Chemistry Dept
- George Washington University
- Washington, USA
| | - A. Korovina
- Chemistry Dept
- George Washington University
- Washington, USA
| | - V. Croze
- Institute for Materials Science
- Technische Universität Darmstadt
- Darmstadt, Germany
| | - J. Melke
- Institute for Materials Science
- Technische Universität Darmstadt
- Darmstadt, Germany
| | - C. Roth
- Institute for Materials Science
- Technische Universität Darmstadt
- Darmstadt, Germany
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15
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Jia Q, Caldwell K, Ziegelbauer JM, Kongkanand A, Wagner FT, Mukerjee S, Ramaker DE. The Role of OOH Binding Site and Pt Surface Structure on ORR Activities. JOURNAL OF THE ELECTROCHEMICAL SOCIETY 2014; 161:F1323-F1329. [PMID: 26190857 PMCID: PMC4501392 DOI: 10.1149/2.1071412jes] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We present experimentally observed molecular adsorbate coverages (e.g., O(H), OOH and HOOH) on real operating dealloyed bimetallic PtMx (M = Ni or Co) catalysts under oxygen reduction reaction (ORR) conditions obtained using X-ray absorption near edge spectroscopy (XANES). The results reveal a complex Sabatier catalysis behavior and indicate the active ORR mechanism changes with Pt-O bond weakening from the O2 dissociative mechanism, to the peroxyl mechanism, and finally to the hydrogen peroxide mechanism. An important rearrangement of the OOH binding site, an intermediate in the ORR, enables facile H addition to OOH and faster O-O bond breaking on 111 faces at optimal Pt-O bonding strength, such as that occurring in dealloyed PtM core-shell nanoparticles. This rearrangement is identified by previous DFT calculations and confirmed from in situ measured OOH adsorption coverages during the ORR. The importance of surface structural effects and 111 ordered faces is confirmed by the higher specific ORR rates on solid core vs porous multi-core nanoparticles.
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Affiliation(s)
- Qingying Jia
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts 02115, USA
| | - Keegan Caldwell
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
| | - Joseph M Ziegelbauer
- Electrochemical Energy Research Lab, General Motors Research & Development, Warren, Michigan 48090, USA
| | - Anusorn Kongkanand
- Electrochemical Energy Research Lab, General Motors Research & Development, Warren, Michigan 48090, USA
| | - Frederick T Wagner
- Electrochemical Energy Research Lab, General Motors Research & Development, Warren, Michigan 48090, USA
| | - Sanjeev Mukerjee
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts 02115, USA
| | - David E Ramaker
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
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16
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Zulke AA, Matos R, Pereira EC. Metallic multilayered films electrodeposited over titanium as catalysts for methanol electro-oxidation. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.05.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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17
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Swider-Lyons KE, Campbell SA. Physical Chemistry Research Toward Proton Exchange Membrane Fuel Cell Advancement. J Phys Chem Lett 2013; 4:393-401. [PMID: 26281730 DOI: 10.1021/jz3019012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Hydrogen fuel cells, the most common type of which are proton exchange membrane fuel cells (PEMFCs), are on a rapid path to commercialization. We credit physical chemistry research in oxygen reduction electrocatalysis and theory with significant breakthroughs, enabling more cost-effective fuel cells. However, most of the physical chemistry has been restricted to studies of platinum and related alloys. More work is needed to better understand electrocatalysts generally in terms of properties and characterization. While the advent of such highly active catalysts will enable smaller, less expensive, and more powerful stacks, they will require better understanding and a complete restructuring of the diffusion media in PEMFCs to facilitate faster transport of the reactants (O2) and products (H2O). Even Ohmic losses between materials become more important at high power. Such lessons from PEMFC research are relevant to other electrochemical conversion systems, including Li-air batteries and flow batteries.
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Affiliation(s)
- Karen E Swider-Lyons
- †Chemistry Division, Naval Research Laboratory, Washington, DC 20375, United States
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