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Kumar U, Sanket K, Mandal R, Kumar De A, Shrivastava A, Behera SK, Sinha I. Silver nanoparticle-decorated NiFe 2O 4/CuWO 4 heterostructure electrocatalyst for oxygen evolution reactions. Phys Chem Chem Phys 2024; 26:14883-14897. [PMID: 38738546 DOI: 10.1039/d4cp00473f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
In this work, Ag nanoparticles decorated with NiFe2O4/CuWO4 heterostructure were synthesized using the step-wise precipitation method. The influence of varying Ag loading on the NiFe2O4/CuWO4 heterostructure and its electrochemical OER performance was extensively studied in 1 M KOH electrolyte. The obtained LSV profile was analyzed to determine the overpotential, Tafel slope, and onset potential. The heterostructure with an optimal Ag loading of 5 wt% required the least overpotential (1.60 V vs. RHE) for generating a current density of 10 mA cm-2 with a lower Tafel slope of 44.5 mV dec-1, indicating its faster OER kinetics. Furthermore, the composite remained stable over a period of 24 hours with a minimum rise in the overpotential after the stability test. The enhanced OER performance of the as-prepared catalyst can be attributed to the presence of multiple metallic elements in the Ag-loaded NiFe2O4/CuWO4 composite, which created a diverse array of oxygen-vacant sites with varying reactivity, enhancing the charge-transfer kinetics; and thus contributing to the overall efficiency of OER. Therefore, optimizing the Ag concentration and engineering a microstructure represents an encouraging strategy for developing cost-effective catalysts for next-generation energy-conversion applications.
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Affiliation(s)
- Uttam Kumar
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
| | - Kumar Sanket
- Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odhisa 769008, India.
| | - Rupesh Mandal
- Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odhisa 769008, India.
| | - Arup Kumar De
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
| | - Anshu Shrivastava
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
| | - Shantanu K Behera
- Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odhisa 769008, India.
| | - Indrajit Sinha
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, India.
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Kim NI, Lee J, Jin S, Park J, Jeong JY, Lee J, Kim Y, Kim C, Choi SM. Synergistic Effects in LaNiO 3 Perovskites between Nickel and Iron Heterostructures for Improving Durability in Oxygen Evolution Reaction for AEMWE. SMALL METHODS 2024:e2400284. [PMID: 38651527 DOI: 10.1002/smtd.202400284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/09/2024] [Indexed: 04/25/2024]
Abstract
Perovskite materials that aren't stable during the oxygen evolution reaction (OER) are unsuitable for anion-exchange membrane water electrolyzers (AEMWE). But through manipulating their electronic structures, their performance can further increase. Among the first-row transition metals, nickel and iron are widely recognized as prominent electrocatalysts; thus, the researchers are looking into how combining them can improve the OER. Recent research has actively explored the design and study of heterostructures in this field, showcasing the dynamic exploration of innovative catalyst configurations. In this study, a heterostructure is used to manipulate the electronic structure of LaNiO3 (LNO) to improve both OER properties and durability. Through adsorbing iron onto the LNO (LNO@Fe) as γ iron oxyhydroxide (γ-FeOOH), the binding energy of nickel in the LNO exhibited negative shifts, inferring nickel movement toward the metallic state. Consequently, the electrochemical properties of LNO@Fe are further improved. LNO@Fe showed excellent performance (1.98 A cm-2, 1 m KOH, 50 °C at 1.85 V) with 84.1% cell efficiency in AEMWE single cells, demonstrating great improvement relative to LNO. The degradation for the 850 h durability analysis of LNO@Fe is ≈68 mV kh-1, which is ≈58 times less than that of LNO.
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Affiliation(s)
- Nam In Kim
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
- Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Jaehun Lee
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Song Jin
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Junyoung Park
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Jae-Yeop Jeong
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Jooyoung Lee
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Yangdo Kim
- Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Chiho Kim
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
| | - Sung Mook Choi
- Department of Hydrogen Energy Materials, Surface & Nano Materials Division, Korea Institute of Materials Science (KIMS), Changwon, 51508, Republic of Korea
- Advanced Materials Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
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Qin Y, Zhang W, Wang R, Li L, Zhao X, Zhang W. Metal-Organic Frameworks-Derived FeS-Co 9S 8/NCA Porous Aerogel Electrocatalyst as a High-Performance Cathode for Zinc-Air Batteries. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1024-1034. [PMID: 38113516 DOI: 10.1021/acs.langmuir.3c03260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Herein, a novel strategy to establish a porous FeS-Co9S8/carbon aerogel (FeS-Co9S8/NCA) electrocatalyst for oxygen evolution reaction (OER) is fabricated via applying a green biomass carrageenan sulfuration method to CoFe-metal-organic frameworks (MOFs). The FeS-Co9S8/NCA exhibits optimized catalytic activity toward the OER with a lower overpotential of 322 mV, which is overmatched to the majority of transition metal sulfides (TMSs), as well as lifted long-term durability without evident variation in the LSV curves after 3000 cycles. Rechargeable liquid zinc-air battery (ZAB) assembled with FeS-Co9S8/NCA as the OER catalyst indicated a maximum power density of 176 mW cm-2 and superior cycling stability without raised polarization even after 48 h, outperforms commercial RuO2-based ZAB. Furthermore, the flexible solid-state ZAB built with FeS-Co9S8/NCA also demonstrated outdistance properties and bendability. The excellent performance stems from the hierarchical porous aerogel structure, which offers a multiscale mass/electron transport channel, together with the interfacial synergy effect between FeS and Co9S8, which serves as the active site of the OER reaction. Thus, this work instituted a novel strategy for obtaining both clean and efficient transition metal sulfide electrocatalysts for the OER reaction and an environmentally friendly biomass material-based sustainable electrocatalyst.
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Affiliation(s)
- Yunong Qin
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Wanzhihan Zhang
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Rui Wang
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Ling Li
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Xiaohui Zhao
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
| | - Wenming Zhang
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, College of Physics Science and Technology, Hebei University, Baoding 071002, China
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4
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Shang C, Xiao X, Xu Q. Coordination chemistry in modulating electronic structures of perovskite-type oxide nanocrystals for oxygen evolution catalysis. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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5
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Pan G, Deng Y, Zhao L, Wang H, Wang R, Jin J, Gong Y, He B. In-situ construction of Ruddlesden-Popper/perovskite heterointerface induces efficient bifunctional oxygen electrocatalyst for rechargeable zinc-air batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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High-Performance A-Site Deficient Perovskite Electrocatalyst for Rechargeable Zn–Air Battery. Catalysts 2022. [DOI: 10.3390/catal12070703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
Zinc–air batteries are one of the most excellent of the next generation energy devices. However, their application is greatly hampered by the slow kinetics of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) of air electrode. It is of great importance to develop good oxygen electrocatalysts with long durability as well as low cost. Here, A-site deficient (SmSr)0.95Co0.9Pt0.1O3 perovskites have been studied as potential OER electrocatalysts prepared by EDTA–citrate acid complexing method. OER electrocatalytic performance of (SmSr)0.95Co0.9Pt0.1O3 was also evaluated. (SmSr)0.95Co0.9Pt0.1O3 electrocatalysts exhibited good OER activities in 0.1 M KOH with onset potential and Tafel slope of 1.50 V and 87 mV dec−1, similar to that of Ba0.5Sr0.5Co0.8Fe0.2O3 (BSCF-5582). Assembled rechargeable Zn–air batteries exhibited good discharge potential and charge potential with high stability, respectively. Overall, all results illustrated that (SmSr)0.95Co0.9Pt0.1O3 is an excellent OER electrocatalyst for zinc–air batteries. Additionally, this work opens a good way to synthesize highly efficient electrocatalysts from A-site deficient perovskites.
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Jia Z, Han D, Chang F, Fu X, Bai Z, Yang L. Synergistic effect of Cu/Cu 2O surfaces and interfaces for boosting electrosynthesis of ethylene from CO 2 in a Zn–CO 2 battery. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01131j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We constructed Cu/Cu2O hybrid catalysts with highly active surfaces/interfaces to realize a synergistic effect, thus improving the selectivity and efficiency of C2H4 production.
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Affiliation(s)
- Zhichao Jia
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Dandan Han
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Fangfang Chang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xiaogang Fu
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
| | - Zhengyu Bai
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Lin Yang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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Zhang X, Qiu Y, Li Q, Ji X, Liu J. Synergetic Engineering of High‐Oxidation‐State Cations on Phase Boundaries toward High‐Efficiency Water Splitting. ChemElectroChem 2021. [DOI: 10.1002/celc.202101422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xinyue Zhang
- College of Materials Science and Engineering Qingdao University Qingdao 266071 Shandong P. R. China
| | - Yanling Qiu
- College of Materials Science and Engineering Qingdao University Qingdao 266071 Shandong P. R. China
| | - Qin Li
- College of Materials Science and Engineering Qingdao University Qingdao 266071 Shandong P. R. China
| | - Xuqiang Ji
- College of Materials Science and Engineering Qingdao University Qingdao 266071 Shandong P. R. China
| | - Jingquan Liu
- College of Materials Science and Engineering Qingdao University Qingdao 266071 Shandong P. R. China
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Arandiyan H, S Mofarah S, Sorrell CC, Doustkhah E, Sajjadi B, Hao D, Wang Y, Sun H, Ni BJ, Rezaei M, Shao Z, Maschmeyer T. Defect engineering of oxide perovskites for catalysis and energy storage: synthesis of chemistry and materials science. Chem Soc Rev 2021; 50:10116-10211. [PMID: 34542117 DOI: 10.1039/d0cs00639d] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Oxide perovskites have emerged as an important class of materials with important applications in many technological areas, particularly thermocatalysis, electrocatalysis, photocatalysis, and energy storage. However, their implementation faces numerous challenges that are familiar to the chemist and materials scientist. The present work surveys the state-of-the-art by integrating these two viewpoints, focusing on the critical role that defect engineering plays in the design, fabrication, modification, and application of these materials. An extensive review of experimental and simulation studies of the synthesis and performance of oxide perovskites and devices containing these materials is coupled with exposition of the fundamental and applied aspects of defect equilibria. The aim of this approach is to elucidate how these issues can be integrated in order to shed light on the interpretation of the data and what trajectories are suggested by them. This critical examination has revealed a number of areas in which the review can provide a greater understanding. These include considerations of (1) the nature and formation of solid solutions, (2) site filling and stoichiometry, (3) the rationale for the design of defective oxide perovskites, and (4) the complex mechanisms of charge compensation and charge transfer. The review concludes with some proposed strategies to address the challenges in the future development of oxide perovskites and their applications.
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Affiliation(s)
- Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia. .,Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia.
| | - Sajjad S Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Charles C Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW 2052, Australia.
| | - Esmail Doustkhah
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Baharak Sajjadi
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Derek Hao
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Yuan Wang
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, 124 La Trobe Street, Melbourne, VIC, Australia. .,School of Chemistry, UNSW Sydney, Sydney, NSW 2052, Australia
| | - Hongyu Sun
- Department of Micro- and Nanotechnology, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Bing-Jie Ni
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Mehran Rezaei
- Catalyst and Nanomaterials Research Laboratory (CNMRL), School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6845, Australia. .,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia.
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10
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Zhang H, Zeng Z, Shi X, Du Y. In-depth study on the structures and properties of rare-earth-containing perovskite materials. NANOSCALE 2021; 13:13976-13994. [PMID: 34477678 DOI: 10.1039/d1nr02950a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rare-earth-containing perovskite (RECP) materials have been extensively studied in various fields for their outstanding optical, electrical, magnetic and catalytic properties. In order to understand the clear relationship between structures and functions of RECP materials, the high-level and effective characterization technologies and analytic methods are absolutely necessary. Normally, diversiform measurement methods should be used simultaneously to analyze RECP materials clearly from different aspects, such as the phases, structures, morphologies, compositions, properties and performances. Therefore, this review will introduce the features and advantages of different analytic technologies and discuss their significances for the research on RECP materials. We hope that this review will provide valuable suggestions for researchers to promote the further research and development of RECP functional materials in the future.
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Affiliation(s)
- Hongtu Zhang
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin 300350, China.
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11
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Huang Y, Wu Y, Zhang Z, Yang L, Zang Q. Rapid electrodeposited of self-supporting Ni-Fe-Mo film on Ni foam as affordable electrocatalysts for oxygen evolution reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138754] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12
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Shi X, Deng Y, Zhao L, Gong Y, Wang R, Wang H, He B. In-situ photodeposition of CoSx on Pa0.5Ba0.5Mn0.25Fe0.75O3-δ perovskite to boost bifunctional oxygen electrocatalysis for rechargeable Zn-air batteries. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Preparation of bimetal-based FeNi-N/C catalyst and its electrocatalytic oxygen reduction performance. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2651-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Shankar A, Elakkiya R, Maduraiveeran G. Self-supported fabrication and electrochemical water splitting study of transition-metal sulphide nanostructured electrodes. NEW J CHEM 2020. [DOI: 10.1039/d0nj00192a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal sulphide (TMS) nanostructures exhibit the electrocatalytic OER activity following the order: FeS > CoS > NiS > CuS.
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Affiliation(s)
- Ayyavu Shankar
- Materials Electrochemistry Laboratory
- Department of Chemistry
- SRM Institute of Science and Technology
- Kattankulathur
- India
| | - Rajasekaran Elakkiya
- Materials Electrochemistry Laboratory
- Department of Chemistry
- SRM Institute of Science and Technology
- Kattankulathur
- India
| | - Govindhan Maduraiveeran
- Materials Electrochemistry Laboratory
- Department of Chemistry
- SRM Institute of Science and Technology
- Kattankulathur
- India
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Gui L, Miao X, Lei C, Wang K, Zhou W, He B, Wang Q, Zhao L. Co 3+ -Rich Na 1.95 CoP 2 O 7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution. Chemistry 2019; 25:11007-11014. [PMID: 31237958 DOI: 10.1002/chem.201901848] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/07/2019] [Indexed: 01/08/2023]
Abstract
Implementing sustainable energy conversion and storage technologies is highly reliant on crucial oxygen electrocatalysis, such as the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). However, the pursuit of low cost, energetic efficient and robust bifunctional catalysts for OER and ORR remains a great challenge. Herein, the novel Na-ion-deficient Na2-x CoP2 O7 catalysts are proposed to efficiently electrocatalyze OER and ORR in alkaline solution. The engineering of Na-ion deficiency can tune the electronic structure of Co, and thus tailor the intrinsically electrocatalytic performance. Among the sodium cobalt phosphate catalysts, the Na1.95 CoP2 O7 (NCPO5) catalyst exhibits the lowest ΔE (EJ10,OER -EJ-1,ORR ) of only 0.86 V, which favorably outperforms most of the reported non-noble metal catalysts. Moreover, the Na-ion deficiency can stabilize the phase structure and morphology of NCPO5 during the OER and ORR processes. This study highlights the Na-ion deficient Na2-x CoP2 O7 as a promising class of low-cost, highly active and robust bifunctional catalysts for OER and ORR.
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Affiliation(s)
- Liangqi Gui
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Xiaoyun Miao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Chengjun Lei
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Kailin Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Wei Zhou
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.,Zhejiang Institute, China University of Geosciences (Wuhan), Hangzhou, 311305, China.,Engineering Research Center of Nano-Geo Materials, of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
| | - Beibei He
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.,Zhejiang Institute, China University of Geosciences (Wuhan), Hangzhou, 311305, China.,Engineering Research Center of Nano-Geo Materials, of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
| | - Qing Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.,Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA
| | - Ling Zhao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.,Zhejiang Institute, China University of Geosciences (Wuhan), Hangzhou, 311305, China.,Engineering Research Center of Nano-Geo Materials, of Ministry of Education, China University of Geosciences, Wuhan, 430074, China
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Xie Z, Zhang C, He X, Liang Y, Meng D, Wang J, Liang P, Zhang Z. Iron and Nickel Mixed Oxides Derived From Ni IIFe II-PBA for Oxygen Evolution Electrocatalysis. Front Chem 2019; 7:539. [PMID: 31428599 PMCID: PMC6689985 DOI: 10.3389/fchem.2019.00539] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 07/15/2019] [Indexed: 11/13/2022] Open
Abstract
The sluggish kinetics of oxygen evolution reaction (OER) on anode hinders the efficiency of electrochemical water splitting. Electrocatalysts for OER based on non-precious transition metals are highly desirable. Herein, iron and nickel mixed oxides with surface oxygen vacancies were fabricated using NiIIFeII-Prussian blue analog as the precursors by a facile two-step thermal-assisted method. The precursor compositions and calcination temperatures exert great impact on the structure and morphology of the derivatives, as well as the electrocatalytic performances for OER. Both the higher content of Ni ions during the synthesis of precursors and lower calcination temperature favor the electrocatalytic performance of the corresponding derivatives. The porous metal oxides consisting of nickel oxide and nickel ferrite exhibited the remarkable electrocatalytic property toward OER in an alkaline solution, which can be attributed to the nanosized and porous structure, the co-existence of spinel NiFe2O4 and cubic NiO, the high content of surface oxygen vacancies, and the low charge transfer resistance. This study will provide new inspiration for the facile design of low-cost active catalysts for OER in the future.
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Affiliation(s)
- Zhuohong Xie
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Chi Zhang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Xin He
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Yi Liang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Dingding Meng
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Jiaqi Wang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Ping Liang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China
| | - Zhonghua Zhang
- School of Applied Physics and Materials, Wuyi University, Jiangmen, China.,Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, China
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