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Zhang J, Guo J, Li H, Luo H, Niu S. Cation etching-induced deep self-reconstruction to form a polycrystalline structure for efficient electrochemical water oxidation. Chem Commun (Camb) 2024. [PMID: 38958926 DOI: 10.1039/d4cc02009j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
In this work, we report a straightforward in situ leaching strategy to achieve rapid structure self-reconstruction of NiRu-OH/NF. The as-prepared electrode shows excellent OER performance with a low overpotential of 321 mV at 100 mA cm-2. It can deliver 10 mA cm-2 at 1.53 V in a water-alkali electrolyzer as the anode and operates steadily at 100 mA cm-2 with a small cell voltage for 50 h.
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Affiliation(s)
- Jing Zhang
- School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 031000, China
| | - Jing Guo
- School of Physics and Information Engineering, Shanxi Normal University, Taiyuan 031000, China
| | - Hugang Li
- Laboratory of Ecology-based Solutions, College of Ecology, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Hao Luo
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 23009, China
| | - Shuai Niu
- Laboratory of Ecology-based Solutions, College of Ecology, Taiyuan University of Technology, Taiyuan 030024, China.
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2
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Liu X, Guo R, Guo M, Ni K, Huang M, Meng J, Xie X, Zhao D, Mai L, Niu C. Anomalous Detachment Behavior and Directional Reconstruction Regulation of Leaching-Type Precatalysts for Industrial Water Electrolyzers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2313931. [PMID: 38552603 DOI: 10.1002/adma.202313931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/20/2024] [Indexed: 04/16/2024]
Abstract
Current reconstruction chemistry studies are mainly operated at the laboratory scale, where the operating parameters are different from those used in industrial water electrolyzers. This gap leads to unclear reconstruction behaviors under industrial conditions and constrains the application of catalysts. Here, this work presents a new reconstruction mechanism and anomalous detachment phenomena observed in leaching-type oxygen-evolving precatalysts under industrial conditions, different from the reported results obtained under laboratory conditions. The identified detachment issues are closely linked to the production of a potassium salt separate phase, which proves sensitive to the local environment, and its instability easily leads to catalyst stripping from the substrate. By establishing detachment critical point and operating parameter-detachment correlation, a targeted reconstruction strategy is proposed to achieve smooth ligand leaching and effectively solve the detachment issue. Theoretical analyses validate the dual-site regulation in directionally reconstructed catalysts with optimized intermediate adsorption. Under industrial conditions, the coupled electrolyzer delivers an industrial-level current density at low cell voltage with prolonged durability, 1 A cm-2 at 2 V for over 340 h. This work bridges the gap of leaching-type precatalysts between laboratory test conditions and industrial operating conditions.
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Affiliation(s)
- Xiong Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Ruiting Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Minghao Guo
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Anhui, 230026, P. R. China
| | - Kun Ni
- CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Anhui, 230026, P. R. China
| | - Meng Huang
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572000, P. R. China
| | - Jiashen Meng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xiaohong Xie
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P. R. China
| | - Dongyuan Zhao
- Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers, School of Chemistry and Materials, Fudan University, Shanghai, 200433, P. R. China
| | - Liqiang Mai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Chaojiang Niu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
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3
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Quan L, Jiang H, Mei G, Sun Y, You B. Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting. Chem Rev 2024; 124:3694-3812. [PMID: 38517093 DOI: 10.1021/acs.chemrev.3c00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts for the two half-reactions of water splitting (e.g., the hydrogen and oxygen evolution reactions, HER and OER) separately, there has been a growing interest in designing and developing bifunctional electrocatalysts, which are able to catalyze both the HER and OER. In addition, considering the high overpotentials required for OER while limited value of the produced oxygen, there is another rapidly growing interest in exploring alternative oxidation reactions to replace OER for hybrid water splitting toward energy-efficient hydrogen generation. This Review begins with an introduction on the fundamental aspects of water splitting, followed by a thorough discussion on various physicochemical characterization techniques that are frequently employed in probing the active sites, with an emphasis on the reconstruction of bifunctional electrocatalysts during redox electrolysis. The design, synthesis, and performance of diverse bifunctional electrocatalysts based on noble metals, nonprecious metals, and metal-free nanocarbons, for overall water splitting in acidic and alkaline electrolytes, are thoroughly summarized and compared. Next, their application toward hybrid water splitting is also presented, wherein the alternative anodic reactions include sacrificing agents oxidation, pollutants oxidative degradation, and organics oxidative upgrading. Finally, a concise statement on the current challenges and future opportunities of bifunctional electrocatalysts for both overall and hybrid water splitting is presented in the hope of guiding future endeavors in the quest for energy-efficient and sustainable green hydrogen production.
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Affiliation(s)
- Li Quan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Hui Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Guoliang Mei
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yujie Sun
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
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4
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Yu Q, Chen Y, Liu J, Li C, Hu J, Xu X. MXene-mediated reconfiguration induces robust nickel-iron catalysts for industrial-grade water oxidation. Proc Natl Acad Sci U S A 2024; 121:e2319894121. [PMID: 38377200 PMCID: PMC10907270 DOI: 10.1073/pnas.2319894121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/06/2024] [Indexed: 02/22/2024] Open
Abstract
Nickel-iron oxy/hydroxides (NiFeOxHy) emerge as an attractive type of electrocatalysts for alkaline water oxidation reaction (WOR), but which encounter a huge challenge in stability, especially at industrial-grade large current density due to uncontrollable Fe leakage. Here, we tailor the Fe coordination by a MXene-mediated reconfiguration strategy for the resultant NiFeOxHy catalyst to alleviate Fe leakage and thus reinforce the WOR stability. The introduction of ultrafine MXene with surface dangling bonds in the electrochemical reconfiguration over Ni-Fe Prussian blue analogue induces the covalent hybridization of NiFeOxHy/MXene, which not only accelerates WOR kinetics but also improves Fe oxidation resistance against segregation. As a result, the NiFeOxHy coupled with MXene exhibits an extraordinary durability at ampere-level current density over 1,000 h for alkaline WOR with an ultralow overpotential of only 307 mV. This work provides a broad avenue and mechanistic insights for the development of nickel-iron catalysts toward industrial applications.
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Affiliation(s)
- Qian Yu
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
| | - Yuzhen Chen
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
| | - Jiao Liu
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
| | - Cheng Li
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
| | - Jingguo Hu
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
| | - Xiaoyong Xu
- School of Physical Science and Technology, Yangzhou University, Yangzhou225009, People’s Republic of China
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Tang M, Du K, Yu R, Shi H, Wang P, Guo Y, Wei Q, Yin H, Wang D. Microzone-Acidification-Driven Degradation Mechanism of the NiFe-Based Anode in Seawater Electrolysis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3260-3269. [PMID: 38221720 DOI: 10.1021/acsami.3c13929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The anode stability is critical for efficient and reliable seawater electrolyzers. Herein, a NiFe-based film catalyst was prepared by anodic oxidation to serve as a model electrode, which exhibited a satisfactory oxygen evolution performance in simulated alkaline seawater (1 M KOH + 0.5 M NaCl) with an overpotential of 348 mV at 100 mA cm-2 and a long-term stability of over 100 h. After that, the effects of the current density and bulk pH of the electrolyte on its stability were evaluated. It was found that the electrode stability was sensitive to electrolysis conditions, failing at 20 mA cm-2 in 0.1 M KOH + 0.5 M NaCl but over 500 mA cm-2 in 0.5 M KOH + 0.5 M NaCl. The electrode dissolved, and some precipitates immediately formed at the region very close to the electrode surface during the electrolysis. This can be ascribed to the pH difference between the electrode/electrolyte interface and the bulk electrolyte under anodic polarization. In other words, the microzone acidification accelerates the corrosion of the electrode by Cl-, thus affecting the electrode stability. The operational performances of the electrode under different electrolysis conditions were classified to further analyze the degradation behavior, which resulted in three regions corresponding to the stable oxygen evolution, violent dissolution-precipitation, and complete passivation processes, respectively. Thereby increasing the bulk pH could alleviate the microzone acidification and improve the stability of the anode at high current densities. Overall, this study provides new insights into understanding the degradation mechanism of NiFe-based catalysts and offers electrolyte engineering strategies for the application of anodes.
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Affiliation(s)
- Mengyi Tang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Kaifa Du
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Rui Yu
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Hao Shi
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Peilin Wang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Yifan Guo
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Qinyi Wei
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Huayi Yin
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
| | - Dihua Wang
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430072, P. R. China
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan 430072, P. R. China
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6
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Wang C, Fei Z, Wang Y, Ren F, Du Y. Recent progress of Ni-based nanomaterials for the electrocatalytic oxygen evolution reaction at large current density. Dalton Trans 2024; 53:851-861. [PMID: 38054822 DOI: 10.1039/d3dt03636g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
The precise design and development of high-performing oxygen evolution reaction (OER) for the production of industrial hydrogen gas through water electrolysis has been a widely studied topic. A profound understanding of the nature of electrocatalytic processes reveals that Ni-based catalysts are highly active toward OER that can stably operate at a high current density for a long period of time. Given the current gap between research and applications in industrial water electrolysis, we have completed a systematic review by constructively discussing the recent progress of Ni-based catalysts for electrocatalytic OER at a large current density, with special focus on the morphology and composition regulation of Ni-based electrocatalysts for achieving extraordinary OER performance. This review will facilitate future research toward rationally designing next-generation OER electrocatalysts that can meet industrial demands, thereby promoting new sustainable solutions for energy shortage and environment issues.
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Affiliation(s)
- Cheng Wang
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Zhenghao Fei
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Yanqing Wang
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Fangfang Ren
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Yukou Du
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China.
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7
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Huang Y, Pan Y, Huang X, Xu G, Wang X. One-step fabrication of vanadium-doped CoFe PBA nanosheets for efficient oxygen evolution reaction. Dalton Trans 2023; 52:11297-11302. [PMID: 37529984 DOI: 10.1039/d3dt01629c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Finding effective and affordable non-noble metal catalysts is one of the most important yet difficult tasks because of the sluggish kinetics of the oxygen evolution reaction (OER). Therefore, we synthesized vanadium-doped CoFe PBA nanosheets on nickel foam in a single step to change the electronic structure with metal doping. The sheet structure facilitates charge transfer, while vanadium doping modifies the electronic structure to enhance the catalytic activity. With just a 229 mV overpotential needed in the OER reaction to reach 10 mA cm-2, the as-synthesised electrocatalyst demonstrates high electrocatalytic activity. The produced electrocatalyst can operate at a current density of 10 mA cm-2 for 12 h, and it displays outstanding stability even at a high OER current density of 100 mA cm-2 for 12 h. This study will contribute to the development of efficient and affordable non-noble metal-based electrocatalysts.
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Affiliation(s)
- Yin Huang
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Yaoyao Pan
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Xiaoyu Huang
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Guangzheng Xu
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, P. R. China.
| | - Xiuhua Wang
- College of Chemistry and Materials Science, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu 241000, P. R. China.
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