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Galyamin D, Torrero J, Rodríguez I, Kolb MJ, Ferrer P, Pascual L, Salam MA, Gianolio D, Celorrio V, Mokhtar M, Garcia Sanchez D, Gago AS, Friedrich KA, Peña MA, Alonso JA, Calle-Vallejo F, Retuerto M, Rojas S. Active and durable R 2MnRuO 7 pyrochlores with low Ru content for acidic oxygen evolution. Nat Commun 2023; 14:2010. [PMID: 37037807 PMCID: PMC10086044 DOI: 10.1038/s41467-023-37665-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/27/2023] [Indexed: 04/12/2023] Open
Abstract
The production of green hydrogen in water electrolyzers is limited by the oxygen evolution reaction (OER). State-of-the-art electrocatalysts are based on Ir. Ru electrocatalysts are a suitable alternative provided their performance is improved. Here we show that low-Ru-content pyrochlores (R2MnRuO7, R = Y, Tb and Dy) display high activity and durability for the OER in acidic media. Y2MnRuO7 is the most stable catalyst, displaying 1.5 V at 10 mA cm-2 for 40 h, or 5000 cycles up to 1.7 V. Computational and experimental results show that the high performance is owed to Ru sites embedded in RuMnOx surface layers. A water electrolyser with Y2MnRuO7 (with only 0.2 mgRu cm-2) reaches 1 A cm-2 at 1.75 V, remaining stable at 200 mA cm-2 for more than 24 h. These results encourage further investigation on Ru catalysts in which a partial replacement of Ru by inexpensive cations can enhance the OER performance.
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Affiliation(s)
- Dmitry Galyamin
- Grupo de Energía y Química Sostenibles, Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain
| | - Jorge Torrero
- Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR), Pfaffenwaldring 38-40, 70569, Stuttgart, Germany
| | - Isabel Rodríguez
- Grupo de Energía y Química Sostenibles, Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain
| | - Manuel J Kolb
- Departament de Ciència de Materials i Química Fisica & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, 08028, Barcelona, Spain
| | - Pilar Ferrer
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Laura Pascual
- Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain
| | - Mohamed Abdel Salam
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80200, Jeddah, 21589, Saudi Arabia
| | - Diego Gianolio
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Verónica Celorrio
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Mohamed Mokhtar
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80200, Jeddah, 21589, Saudi Arabia
| | - Daniel Garcia Sanchez
- Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR), Pfaffenwaldring 38-40, 70569, Stuttgart, Germany
| | - Aldo Saul Gago
- Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR), Pfaffenwaldring 38-40, 70569, Stuttgart, Germany
| | - Kaspar Andreas Friedrich
- Institute of Engineering Thermodynamics/Electrochemical Energy Technology, German Aerospace Center (DLR), Pfaffenwaldring 38-40, 70569, Stuttgart, Germany
| | - Miguel A Peña
- Grupo de Energía y Química Sostenibles, Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain
| | - José Antonio Alonso
- Instituto de Ciencia de Materiales de Madrid, CSIC. C/Sor Juana Inés de la Cruz 3, 28049, Madrid, Spain
| | - Federico Calle-Vallejo
- Departament de Ciència de Materials i Química Fisica & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Martí i Franqués 1, 08028, Barcelona, Spain
- Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility (ETSF), Department of Advanced Materials and Polymers: Physics, Chemistry and Technology, University of the Basque Country UPV/EHU, Avenida Tolosa 72, 20018, San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza de Euskadi 5, 48009, Bilbao, Spain
| | - María Retuerto
- Grupo de Energía y Química Sostenibles, Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain.
| | - Sergio Rojas
- Grupo de Energía y Química Sostenibles, Instituto de Catálisis y Petroleoquímica, CSIC. C/Marie Curie 2, 28049, Madrid, Spain.
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Almeida CV, Huang H, Russell AE, Eguiluz KI, Salazar-Banda GR. Improving the catalytic activity of Pt-Rh/C towards ethanol oxidation through the addition of Pb. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lawrence MJ, Celorrio V, Sargeant E, Huang H, Rodríguez-López J, Zhu Y, Gu M, Russell AE, Rodriguez P. Insight into the Activity and Selectivity of Nanostructured Copper Titanates during Electrochemical Conversion of CO 2 at Neutral pH via In Situ X-ray Absorption Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2742-2753. [PMID: 34982523 DOI: 10.1021/acsami.1c19298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The electrochemical conversion of carbon dioxide (CO2) to useful chemical fuels is a promising route toward the achievement of carbon neutral and carbon negative energy technologies. Copper (Cu)- and Cu oxide-derived surfaces are known to electrochemically convert CO2 to high-value and energy-dense products. However, the nature and stability of oxidized Cu species under reaction conditions are the subject of much debate in the literature. Herein, we present the synthesis and characterization of copper-titanate nanocatalysts, with discrete Cu-O coordination environments, for the electrochemical CO2 reduction reaction (CO2RR). We employ real-time in situ X-ray absorption spectroscopy (XAS) to monitor Cu species under neutral-pH CO2RR conditions. Combination of voltammetry and on-line electrochemical mass spectrometry with XAS results demonstrates that the titanate motif promotes the retention of oxidized Cu species under reducing conditions for extended periods, without itself possessing any CO2RR activity. Additionally, we demonstrate that the specific nature of the Cu-O environment and the size of the catalyst dictate the long-term stability of the oxidized Cu species and, subsequently, the product selectivity.
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Affiliation(s)
- Matthew J Lawrence
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Veronica Celorrio
- Diamond Light Source Ltd, Diamond House, Harwell Campus, Didcot OX11 0DE, U.K
| | - Elizabeth Sargeant
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Haoliang Huang
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Joaquín Rodríguez-López
- Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yuanmin Zhu
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meng Gu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Andrea E Russell
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Paramaconi Rodriguez
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
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Isolating the contributions of surface Sn atoms in the bifunctional behaviour of PtSn CO oxidation electrocatalysts. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Baggio BF, Grunder Y. In Situ X-Ray Techniques for Electrochemical Interfaces. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:87-107. [PMID: 33940932 DOI: 10.1146/annurev-anchem-091020-100631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This article reviews progress in the study of materials using X-ray-based techniques from an electrochemistry perspective. We focus on in situ/in operando surface X-ray scattering, X-ray absorption spectroscopy, and the combination of both methods. The background of these techniques together with key concepts is introduced. Key examples of in situ and in operando investigation of liquid-solid and liquid-liquid interfaces are presented. X-ray scattering and spectroscopy have helped to develop an understanding of the underlying atomic and molecular processes associated with electrocatalysis, electrodeposition, and battery materials. We highlight recent developments, including resonant surface diffraction and time-resolved studies.
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Affiliation(s)
- Bruna F Baggio
- Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom;
| | - Yvonne Grunder
- Oliver Lodge Laboratory, Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom;
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Leach AS, Hack J, Amboage M, Diaz-Moreno S, Huang H, Cullen PL, Wilding M, Magliocca E, Miller TS, Howard CA, Brett DJL, Shearing PR, McMillan PF, Russell AE, Jervis R. A novel fuel cell design for operandoenergy-dispersive x-ray absorption measurements. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:314002. [PMID: 34030140 DOI: 10.1088/1361-648x/ac0476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
A polymer electrolyte fuel cell has been designed to allowoperandox-ray absorption spectroscopy (XAS) measurements of catalysts. The cell has been developed to operate under standard fuel cell conditions, with elevated temperatures and humidification of the gas-phase reactants, both of which greatly impact the catalyst utilisation. X-ray windows in the endplates of the cell facilitate collection of XAS spectra during fuel cell operation while maintaining good compression in the area of measurement. Results of polarisation curves and cyclic voltammograms showed that theoperandocell performs well as a fuel cell, while also providing XAS data of suitable quality for robust XANES analysis. The cell has produced comparable XAS results when performing a cyclic voltammogram to an establishedin situcell when measuring the Pt LIII edge. Similar trends of Pt oxidation, and reduction of the formed Pt oxide, have been presented with a time resolution of 5 s for each spectrum, paving the way for time-resolved spectral measurements of fuel cell catalysts in a fully-operating fuel cell.
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Affiliation(s)
- A S Leach
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - J Hack
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - M Amboage
- Diamond Light Source, Didcot, Oxon, OX11 0DE, United Kingdom
| | - S Diaz-Moreno
- Diamond Light Source, Didcot, Oxon, OX11 0DE, United Kingdom
| | - H Huang
- School of Chemistry, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - P L Cullen
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
- School of Engineering and Materials Science (SEMS) and Material Research Institute, Queen Mary University of London, London, E1 4NS, United Kingdom
| | - M Wilding
- UK Catalysis Hub, Research Complex at Harwell, Harwell Campus, OX11 0FA, United Kingdom
| | - E Magliocca
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - T S Miller
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - C A Howard
- Department of Physics & Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - D J L Brett
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - P R Shearing
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
| | - P F McMillan
- Department of Chemistry, Christopher Ingold Laboratory, University College London, 20 Gordon St., London WC1H 0AJ, United Kingdom
| | - A E Russell
- School of Chemistry, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - R Jervis
- Electrochemical Innovation Lab, Department of Chemical Engineering, UCL, London WC1E 7JE, United Kingdom
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Timoshenko J, Roldan Cuenya B. In Situ/ Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy. Chem Rev 2021; 121:882-961. [PMID: 32986414 PMCID: PMC7844833 DOI: 10.1021/acs.chemrev.0c00396] [Citation(s) in RCA: 189] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 12/18/2022]
Abstract
During the last decades, X-ray absorption spectroscopy (XAS) has become an indispensable method for probing the structure and composition of heterogeneous catalysts, revealing the nature of the active sites and establishing links between structural motifs in a catalyst, local electronic structure, and catalytic properties. Here we discuss the fundamental principles of the XAS method and describe the progress in the instrumentation and data analysis approaches undertaken for deciphering X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra. Recent usages of XAS in the field of heterogeneous catalysis, with emphasis on examples concerning electrocatalysis, will be presented. The latter is a rapidly developing field with immense industrial applications but also unique challenges in terms of the experimental characterization restrictions and advanced modeling approaches required. This review will highlight the new insight that can be gained with XAS on complex real-world electrocatalysts including their working mechanisms and the dynamic processes taking place in the course of a chemical reaction. More specifically, we will discuss applications of in situ and operando XAS to probe the catalyst's interactions with the environment (support, electrolyte, ligands, adsorbates, reaction products, and intermediates) and its structural, chemical, and electronic transformations as it adapts to the reaction conditions.
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Affiliation(s)
- Janis Timoshenko
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
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Wu Y, Zhao M, Cao JP, Xu J, Jin T, Asao N. Amorphous/low-crystalline core/shell-type nanoparticles as highly efficient and self-stabilizing catalysts for alkaline hydrogen evolution. Chem Commun (Camb) 2020; 56:8984-8987. [PMID: 32638722 DOI: 10.1039/d0cc03016c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Amorphous/low-crystalline core/shell-type nanoparticles (Pd-P/Pt-Ni NPs) were prepared via a facile seed-mediated method. After acid treatment, the NPs exhibited self-improved catalysis for hydrogen evolution during electrolysis in an alkaline medium.
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Affiliation(s)
- Yanfang Wu
- Key Laboratory of Coal Processing and Efficient Utilization (Ministry of Education), China University of Mining & Technology, Xuzhou 221116, P. R. China.
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In Situ Study of Graphene Oxide Quantum Dot-MoSx Nanohybrids as Hydrogen Evolution Catalysts. SURFACES 2020. [DOI: 10.3390/surfaces3020017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Graphene quantum dots (GOQDs)-MoSx nanohybrids with different MoSx stoichiometries (x = 2 and 3) were prepared in order to investigate their chemical stability under hydrogen evolution reaction (HER) conditions. Combined photoemission/electrochemical (XPS/EC) measurements and operando X-ray absorption spectroscopy (XAS) were employed to determine the chemical changes induced on the MoSx-based materials as a function of the applied potential. This in situ characterization indicates that both MoS2 and MoS3 materials are stable under operating conditions, although sulfur terminal sites in the MoS3 nanoparticles are converted from S-dimer (S22−) to S-monomer (S2−), which constitute the first sites where the hydrogen atoms are adsorbed for their subsequent evolution. In order to complete the characterization of the GOQDs-MoSx nanohybrids, the composition and particle size were determined by X-ray photoemission spectroscopy (XPS), X-ray diffraction (XRD) and Raman spectroscopy; whereas the HER activity was studied by conventional electrochemical techniques.
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Activity and stability improvement of platinum loaded on reduced graphene oxide and carbon nanotube composites for methanol oxidation. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01368-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Lee JH, Kattel S, Jiang Z, Xie Z, Yao S, Tackett BM, Xu W, Marinkovic NS, Chen JG. Tuning the activity and selectivity of electroreduction of CO 2 to synthesis gas using bimetallic catalysts. Nat Commun 2019; 10:3724. [PMID: 31427576 PMCID: PMC6700200 DOI: 10.1038/s41467-019-11352-0] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 06/25/2019] [Indexed: 11/09/2022] Open
Abstract
The electrochemical carbon dioxide reduction reaction to syngas with controlled CO/H2 ratios has been studied on Pd-based bimetallic hydrides using a combination of in situ characterization and density functional theory calculations. When compared with pure Pd hydride, the bimetallic Pd hydride formation occurs at more negative potentials for Pd-Ag, Pd-Cu, and Pd-Ni. Theoretical calculations show that the choice of the second metal has a more significant effect on the adsorption strength of *H than *HOCO, with the free energies between these two key intermediates (i.e., ΔG(*H)-ΔG(*HOCO)) correlating well with the carbon dioxide reduction reaction activity and selectivity observed in the experiments, and thus can be used as a descriptor to search for other bimetallic catalysts. The results also demonstrate the possibility of alloying Pd with non-precious transition metals to promote the electrochemical conversion of CO2 to syngas.
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Affiliation(s)
- Ji Hoon Lee
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA
| | - Shyam Kattel
- Department of Physics, Florida A&M University, Tallahassee, FL, 32307, USA
| | - Zhao Jiang
- Department of Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, No.28 Xianning West Road, 710049, Xi'an, Shaanxi, P. R. China
| | - Zhenhua Xie
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Siyu Yao
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Brian M Tackett
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA
| | - Wenqian Xu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Ave, B433/D003, Argonne, IL, 60439, USA
| | - Nebojsa S Marinkovic
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Jingguang G Chen
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA.
- Chemistry Division, Brookhaven National Laboratory, Upton, NY, 11973, USA.
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