1
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Dowling J, Ifkovits ZP, Carim AI, Evans JM, Swint MC, Ye AZ, Richter MH, Li AX, Lewis NS. Catalysis of the Oxygen-Evolution Reaction in 1.0 M Sulfuric Acid by Manganese Antimonate Films Synthesized via Chemical Vapor Deposition. ACS APPLIED ENERGY MATERIALS 2024; 7:4288-4293. [PMID: 38817848 PMCID: PMC11134315 DOI: 10.1021/acsaem.4c00135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/21/2024] [Accepted: 03/21/2024] [Indexed: 06/01/2024]
Abstract
Manganese antimonate (MnySb1-yOx) electrocatalysts for the oxygen-evolution reaction (OER) were synthesized via chemical vapor deposition. Mn-rich rutile Mn0.63Sb0.37Ox catalysts on fluorine-doped tin oxide (FTO) supports drove the OER for 168 h (7 days) at 10 mA cm-2 with a time-averaged overpotential of 687 ± 9 mV and with >97% Faradaic efficiency. Time-dependent anolyte composition analysis revealed the steady dissolution of Mn and Sb. Extended durability analysis confirmed that Mn-rich MnySb1-yOx materials are more active but dissolve at a faster rate than previously reported Sb-rich MnySb1-yOx alloys.
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Affiliation(s)
- Jacqueline
A. Dowling
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Zachary P. Ifkovits
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Azhar I. Carim
- Division
of Chemistry and Chemical Engineering and Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
| | - Jake M. Evans
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Madeleine C. Swint
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Alexandre Z. Ye
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Matthias H. Richter
- Division
of Engineering and Applied Sciences, California
Institute of Technology, Pasadena, California 91125, United States
| | - Anna X. Li
- Division
of Engineering and Applied Sciences, California
Institute of Technology, Pasadena, California 91125, United States
| | - Nathan S. Lewis
- Division
of Chemistry and Chemical Engineering and Beckman Institute, California Institute of Technology, Pasadena, California 91125, United States
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2
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Ramírez AR, Heidari S, Vergara A, Aguilera MV, Preuss P, Camarada MB, Fischer A. Rhenium-Based Electrocatalysts for Water Splitting. ACS MATERIALS AU 2023; 3:177-200. [PMID: 38089137 PMCID: PMC10176616 DOI: 10.1021/acsmaterialsau.2c00077] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/21/2023] [Accepted: 01/23/2023] [Indexed: 06/28/2024]
Abstract
Due to the contamination and global warming problems, it is necessary to search for alternative environmentally friendly energy sources. In this area, hydrogen is a promising alternative. Hydrogen is even more promising, when it is obtained through water electrolysis operated with renewable energy sources. Among the possible devices to perform electrolysis, proton exchange membrane (PEM) electrolyzers appear as the most promising commercial systems for hydrogen production in the coming years. However, their massification is affected by the noble metals used as electrocatalysts in their electrodes, with high commercial value: Pt at the cathode where the hydrogen evolution reaction occurs (HER) and Ru/Ir at the anode where the oxygen evolution reaction (OER) happens. Therefore, to take full advantage of the PEM technology for green H2 production and build up a mature PEM market, it is imperative to search for more abundant, cheaper, and stable catalysts, reaching the highest possible activities at the lowest overpotential with the longest stability under the harsh acidic conditions of a PEM. In the search for new electrocatalysts and considering the predictions of a Trasatti volcano plot, rhenium appears to be a promising candidate for HER in acidic media. At the same time, recent studies provide evidence of its potential as an OER catalyst. However, some of these reports have focused on chemical and photochemical water splitting and have not always considered acidic media. This review summarizes rhenium-based electrocatalysts for water splitting under acidic conditions: i.e., potential candidates as cathode materials. In the various sections, we review the mechanism concepts of electrocatalysis, evaluation methods, and the different rhenium-based materials applied for the HER in acidic media. As rhenium is less common for the OER, we included a section about its use in chemical and photochemical water oxidation and as an electrocatalyst under basic conditions. Finally, concluding remarks and perspectives are given about rhenium for water splitting.
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Affiliation(s)
- Andrés
M. R. Ramírez
- Centro
de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería
y Tecnología, Universidad Mayor, Camino La Pirámide 5750, 8580745 Huechuraba, Santiago RM Chile
- Universidad
Mayor, Núcleo Química y Bioquímica, Facultad
de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Camino
La Pirámide 5750, 8580745 Huechuraba, Santiago RM Chile
| | - Sima Heidari
- Inorganic
Functional Materials and Nanomaterials Group, Institute for Inorganic
and Analytical Chemistry, University of
Freiburg, Albertstraße 21, 79104 Freiburg, Germany
- FMF
− Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Straße 19, 79104 Freiburg, Germany
- FIT
− Freiburg Center for Interactive Materials and Bioinspired
Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - Ana Vergara
- Centro
de Nanotecnología Aplicada, Facultad de Ciencias, Ingeniería
y Tecnología, Universidad Mayor, Camino La Pirámide 5750, 8580745 Huechuraba, Santiago RM Chile
| | - Miguel Villicaña Aguilera
- Departamento
de Química Inorgánica, Facultad de Química y
de Farmacia, Pontificia Universidad Católica
de Chile, Santiago 7820436, Chile
| | - Paulo Preuss
- Departamento
de Química Inorgánica, Facultad de Química y
de Farmacia, Pontificia Universidad Católica
de Chile, Santiago 7820436, Chile
| | - María B. Camarada
- Inorganic
Functional Materials and Nanomaterials Group, Institute for Inorganic
and Analytical Chemistry, University of
Freiburg, Albertstraße 21, 79104 Freiburg, Germany
- FIT
− Freiburg Center for Interactive Materials and Bioinspired
Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
- Departamento
de Química Inorgánica, Facultad de Química y
de Farmacia, Pontificia Universidad Católica
de Chile, Santiago 7820436, Chile
- Centro Investigación
en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Anna Fischer
- Inorganic
Functional Materials and Nanomaterials Group, Institute for Inorganic
and Analytical Chemistry, University of
Freiburg, Albertstraße 21, 79104 Freiburg, Germany
- FMF
− Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Straße 19, 79104 Freiburg, Germany
- FIT
− Freiburg Center for Interactive Materials and Bioinspired
Technologies, University of Freiburg, Georges-Köhler-Allee 105, 79110 Freiburg, Germany
- Cluster
of Excellence livMatS, University of Freiburg, 79104 Freiburg, Germany
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3
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Mahidashti Z, Rezaei M, Borrelli M, Shaygan Nia A. Insight into the stability mechanism of nickel and manganese antimonate catalytic films during the oxygen evolution reaction in acidic media. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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4
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Xiong W, Yin H, Wu T, Li H. Challenges and Opportunities of Transition Metal Oxides as Electrocatalysts. Chemistry 2023; 29:e202202872. [PMID: 36372776 DOI: 10.1002/chem.202202872] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022]
Abstract
As a sustainable energy technology, electrocatalytic energy conversion and storage has become increasingly prominent. The oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), nitrogen reduction reaction (NRR), and carbon dioxide reduction reaction (CO2 RR) are the key steps in the industrial applications of energy conversion and storage. Compared to the widely used precious metal catalysts, less-noble transition metal oxides (TMOs) and TMO-like materials have attracted broad attention as electrocatalysts in the above reactions. In this concept, we summarize the challenges and opportunities of some typical TMOs in electrocatalysis, and modification strategies of TMOs as electrocatalysts are discussed.
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Affiliation(s)
- Wei Xiong
- Key Laboratory of Novel Biomass-Based Environmental and, Energy Materials in Petroleum and Chemical Industry, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor &Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, P. R. China
| | - Huhu Yin
- Key Laboratory of Novel Biomass-Based Environmental and, Energy Materials in Petroleum and Chemical Industry, Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education, Hubei Key Laboratory of Novel Reactor &Green Chemical Technology, School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, P. R. China
| | - Tianxing Wu
- Northwest Institute for Non-ferrous Metal Research, Xi'an, 710016, P. R. China
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
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5
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Zhu S, Liu D, Lv L, Le J, Zhou Y, Li J, Kuang Y. Charged matrix stabilized cobalt oxide electrocatalyst with extraordinary oxygen evolution performance at pH 7. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Gunasooriya GTKK, Kreider ME, Liu Y, Zamora Zeledón JA, Wang Z, Valle E, Yang AC, Gallo A, Sinclair R, Stevens MB, Jaramillo TF, Nørskov JK. First-Row Transition Metal Antimonates for the Oxygen Reduction Reaction. ACS NANO 2022; 16:6334-6348. [PMID: 35377139 DOI: 10.1021/acsnano.2c00420] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of inexpensive and abundant catalysts with high activity, selectivity, and stability for the oxygen reduction reaction (ORR) is imperative for the widespread implementation of fuel cell devices. Herein, we present a combined theoretical-experimental approach to discover and design first-row transition metal antimonates as excellent electrocatalytic materials for the ORR. Theoretically, we identify first-row transition metal antimonates─MSb2O6, where M = Mn, Fe, Co, and Ni─as nonprecious metal catalysts with good oxygen binding energetics, conductivity, thermodynamic phase stability, and aqueous stability. Among the considered antimonates, MnSb2O6 shows the highest theoretical ORR activity based on the 4e- ORR kinetic volcano. Experimentally, nanoparticulate transition metal antimonate catalysts are found to have a minimum of a 2.5-fold enhancement in intrinsic mass activity (on transition metal mass basis) relative to the corresponding transition metal oxide at 0.7 V vs RHE in 0.1 M KOH. MnSb2O6 is the most active catalyst under these conditions, with a 3.5-fold enhancement on a per Mn mass activity basis and 25-fold enhancement on a surface area basis over its antimony-free counterpart. Electrocatalytic and material stability are demonstrated over a 5 h chronopotentiometry experiment in the stability window identified by theoretical Pourbaix analysis. This study further highlights the stable and electrically conductive antimonate structure as a framework to tune the activity and selectivity of nonprecious metal oxide active sites for ORR catalysis.
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Affiliation(s)
| | - Melissa E Kreider
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Yunzhi Liu
- Department of Materials Science and Engineering, Stanford University, 496 Lomita Mall, Stanford, California 94305, United States
| | - José A Zamora Zeledón
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Zhenbin Wang
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Eduardo Valle
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - An-Chih Yang
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Alessandro Gallo
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Robert Sinclair
- Department of Materials Science and Engineering, Stanford University, 496 Lomita Mall, Stanford, California 94305, United States
| | - Michaela Burke Stevens
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Thomas F Jaramillo
- Department of Chemical Engineering, Stanford University, 443 via Ortega, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jens K Nørskov
- Catalysis Theory Center, Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
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7
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Du HL, Chatti M, Kerr B, Nguyen CK, Tran-Phu T, Hoogeveen DA, Cherepanov PV, Chesman ASR, Johannessen B, Tricoli A, Hocking RK, MacFarlane DR, Simonov AN. Durable electrooxidation of acidic water catalysed by a cobalt‐bismuth‐based oxide composite: an unexpected role of the F‐doped SnO2 substrate. ChemCatChem 2022. [DOI: 10.1002/cctc.202200013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Brittany Kerr
- Swinburne University of Technology Faculty of Science, Engineering and Technology AUSTRALIA
| | | | - Thanh Tran-Phu
- Australian National University Research School of Chemistry AUSTRALIA
| | | | | | | | | | | | - Rosalie K. Hocking
- Swinburne University of Technology - Hawthorn Campus: Swinburne University of Technology Faculty of Science, Engineering and Technology AUSTRALIA
| | | | - Alexandr Nikolaevich Simonov
- Monash University School of Chemistry and the ARC Centre of Excellence for Electromaterials Science Wellington Road 3800 Clayton AUSTRALIA
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8
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Li L, Wang P, Shao Q, Huang X. Recent Progress in Advanced Electrocatalyst Design for Acidic Oxygen Evolution Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004243. [PMID: 33749035 DOI: 10.1002/adma.202004243] [Citation(s) in RCA: 132] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 10/16/2020] [Indexed: 05/27/2023]
Abstract
Proton exchange membrane (PEM) water electrolyzers hold great significance for renewable energy storage and conversion. The acidic oxygen evolution reaction (OER) is one of the main roadblocks that hinder the practical application of PEM water electrolyzers. Highly active, cost-effective, and durable electrocatalysts are indispensable for lowering the high kinetic barrier of OER to achieve boosted reaction kinetics. To date, a wide spectrum of advanced electrocatalysts has been designed and synthesized for enhanced acidic OER performance, though Ir and Ru based nanostructures still represent the state-of-the-art catalysts. In this Progress Report, recent research progress in advanced electrocatalysts for improved acidic OER performance is summarized. First, fundamental understanding about acidic OER including reaction mechanisms and atomic understanding to acidic OER for rational design of efficient electrocatalysts are discussed. Thereafter, an overview of the progress in the design and synthesis of advanced acidic OER electrocatalysts is provided in terms of catalyst category, i.e., metallic nanostructures (Ir and Ru based), precious metal oxides, nonprecious metal oxides, and carbon based nanomaterials. Finally, perspectives to the future development of acidic OER are provided from the aspects of reaction mechanism investigation and more efficient electrocatalyst design.
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Affiliation(s)
- Leigang Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Pengtang Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu, 215123, China
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9
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Gao J, Tao H, Liu B. Progress of Nonprecious-Metal-Based Electrocatalysts for Oxygen Evolution in Acidic Media. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003786. [PMID: 34169587 DOI: 10.1002/adma.202003786] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/29/2020] [Indexed: 06/13/2023]
Abstract
Water oxidation, or the oxygen evolution reaction (OER), which combines two oxygen atoms from two water molecules and releases one oxygen molecule, plays the key role by providing protons and electrons needed for the hydrogen generation, electrochemical carbon dioxide reduction, and nitrogen fixation. The multielectron transfer OER process involves multiple reaction intermediates, and a high overpotential is needed to overcome the sluggish kinetics. Among the different water splitting devices, proton exchange membrane (PEM) water electrolyzer offers greater advantages. However, current anode OER electrocatalysts in PEM electrolyzers are limited to precious iridium and ruthenium oxides. Developing highly active, stable, and precious-metal-free electrocatalysts for water oxidation in acidic media is attractive for the large-scale application of PEM electrolyzers. In recent years, various types of precious-metal-free catalysts such as carbon-based materials, earth-abundant transition metal oxides, and multiple metal oxide mixtures have been investigated and some of them show promising activity and stability for acidic OER. In this review, the thermodynamics of water oxidation, Pourbaix diagram of metal elements in aqueous solution, and theoretical screening and prediction of precious-metal-free electrocatalysts for acidic OER are first elaborated. The catalytic performance, reaction kinetics, and mechanisms together with future research directions regarding acidic OER are summarized and discussed.
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Affiliation(s)
- Jiajian Gao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Huabing Tao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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10
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Han H, Kim I, Park S. Thermally templated cobalt oxide nanobubbles on crumpled graphene sheets: A promising non-precious metal catalysts for acidic oxygen evolution. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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11
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Ghadge SD, Velikokhatnyi OI, Datta MK, Shanthi PM, Tan S, Damodaran K, Kumta PN. Experimental and Theoretical Validation of High Efficiency and Robust Electrocatalytic Response of One-Dimensional (1D) (Mn,Ir)O2:10F Nanorods for the Oxygen Evolution Reaction in PEM-Based Water Electrolysis. ACS Catal 2019. [DOI: 10.1021/acscatal.8b02901] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shrinath Dattatray Ghadge
- Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Oleg I. Velikokhatnyi
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Center for Complex Engineered Multifunctional Materials, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Moni K. Datta
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Center for Complex Engineered Multifunctional Materials, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Pavithra M. Shanthi
- Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Susheng Tan
- Department of Electrical and Computer Engineering and Petersen Institute of Nanoscience and Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Krishnan Damodaran
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Prashant N. Kumta
- Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Center for Complex Engineered Multifunctional Materials, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- School of Dental Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15217, United States
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12
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Zhou L, Shinde A, Montoya JH, Singh A, Gul S, Yano J, Ye Y, Crumlin EJ, Richter MH, Cooper JK, Stein HS, Haber JA, Persson KA, Gregoire JM. Rutile Alloys in the Mn–Sb–O System Stabilize Mn3+ To Enable Oxygen Evolution in Strong Acid. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02689] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lan Zhou
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Aniketa Shinde
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Joseph H. Montoya
- Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Arunima Singh
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Sheraz Gul
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Junko Yano
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Yifan Ye
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Advanced Light Source, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, California 94720, United States
| | - Ethan J. Crumlin
- Advanced Light Source, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, California 94720, United States
| | - Matthias H. Richter
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jason K. Cooper
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Helge S. Stein
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Joel A. Haber
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Kristin A. Persson
- Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - John M. Gregoire
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, United States
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13
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Schäfer H, Küpper K, Schmidt M, Müller-Buschbaum K, Stangl J, Daum D, Steinhart M, Schulz-Kölbel C, Han W, Wollschläger J, Krupp U, Hou P, Liu X. Steel-based electrocatalysts for efficient and durable oxygen evolution in acidic media. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02194a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Upon electro-oxidation in LiOH, Ni42 alloy was rendered in an OER electrocatalyst that efficiently and durably works in the acidic regime.
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14
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Schäfer H, Küpper K, Müller-Buschbaum K, Daum D, Steinhart M, Wollschläger J, Krupp U, Schmidt M, Han W, Stangl J. Electro-oxidation of a cobalt based steel in LiOH: a non-noble metal based electro-catalyst suitable for durable water-splitting in an acidic milieu. NANOSCALE 2017; 9:17829-17838. [PMID: 29115339 DOI: 10.1039/c7nr06527b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The use of proton exchange membrane (PEM) electrolyzers is the method of choice for the conversion of solar energy when frequently occurring changes of the current load are an issue. However, this technique requires electrolytes with low pH. All oxygen evolving electrodes working durably and actively in acids contain IrOx. Due to their scarcity and high acquisition costs, noble elements like Pt, Ru and Ir need to be replaced by earth abundant elements. We have evaluated a cobalt containing steel for use as an oxygen-forming electrode in H2SO4. We found that the dissolving of ingredients out of the steel electrode at oxidative potential in sulfuric acid, which is a well-known, serious issue, can be substantially reduced when the steel is electro-oxidized in LiOH prior to electrocatalysis. Under optimized synthesis conditions a cobalt-containing tool steel was rendered into a durable oxygen evolution reaction (OER) electrocatalyst (weight loss: 39 μg mm-2 after 50 000 s of chronopotentiometry at pH 1) that exhibits overpotentials down to 574 mV at 10 mA cm-2 current density at pH 1. Focused ion beam SEM (FIB-SEM) was successfully used to create a structure-stability relationship.
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Affiliation(s)
- Helmut Schäfer
- Institute of Chemistry of New Materials and Center of Physics and Chemistry of New Materials, Universität Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany.
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Huynh M, Ozel T, Liu C, Lau EC, Nocera DG. Design of template-stabilized active and earth-abundant oxygen evolution catalysts in acid. Chem Sci 2017; 8:4779-4794. [PMID: 29163926 PMCID: PMC5637126 DOI: 10.1039/c7sc01239j] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/05/2017] [Indexed: 12/24/2022] Open
Abstract
Oxygen evolution reaction (OER) catalysts that are earth-abundant and are active and stable in acid are unknown. Active catalysts derived from Co and Ni oxides dissolve at low pH, whereas acid stable systems such as Mn oxides (MnO x ) display poor OER activity. We now demonstrate a rational approach for the design of earth-abundant catalysts that are stable and active in acid by treating activity and stability as decoupled elements of mixed metal oxides. Manganese serves as a stabilizing structural element for catalytically active Co centers in CoMnO x films. In acidic solutions (pH 2.5), CoMnO x exhibits the OER activity of electrodeposited Co oxide (CoO x ) with a Tafel slope of 70-80 mV per decade while also retaining the long-term acid stability of MnO x films for OER at 0.1 mA cm-2. Driving OER at greater current densities in this system is not viable because at high anodic potentials, Mn oxides convert to and dissolve as permanganate. However, by exploiting the decoupled design of the catalyst, the stabilizing structural element may be optimized independently of the Co active sites. By screening potential-pH diagrams, we replaced Mn with Pb to prepare CoFePbO x films that maintained the high OER activity of CoO x at pH 2.5 while exhibiting long-term acid stability at higher current densities (at 1 mA cm-2 for over 50 h at pH 2.0). Under these acidic conditions, CoFePbO x exhibits OER activity that approaches noble metal oxides, thus establishing the viability of decoupling functionality in mixed metal catalysts for designing active, acid-stable, and earth-abundant OER catalysts.
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Affiliation(s)
- Michael Huynh
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA .
| | - Tuncay Ozel
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA .
| | - Chong Liu
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA .
| | - Eric C Lau
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA .
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , USA .
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Tibbetts KM, Feng XJ, Rabitz H. Exploring experimental fitness landscapes for chemical synthesis and property optimization. Phys Chem Chem Phys 2017; 19:4266-4287. [DOI: 10.1039/c6cp06187g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The topology of experimental fitness landscapes for chemical optimization objectives is assessed through svr-based HDMR modeling.
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Combinatorial electrochemistry – Processing and characterization for materials discovery. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.md.2015.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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