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Jiang H, Zhao Z, Li G, Wang M, Chen P, Liu X, Tu X, Hu Y, Shen Z, Wu Y. Hollow Spherical Heterostructured FeCo-P Catalysts Derived from MOF-74 for Efficient Overall Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306919. [PMID: 37985793 PMCID: PMC10787075 DOI: 10.1002/advs.202306919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/18/2023] [Indexed: 11/22/2023]
Abstract
The design of catalysts with tunable active sites in heterogeneous interface structures is crucial for addressing challenges in the water-splitting process. Herein, a hollow spherical heterostructure FeCo-P is successfully prepared by hydrothermal and phosphorization methods. This hollow structure, along with the heterogeneous interface between Co2 P and FeP, not only facilitates the exposure of more active sites, but also increases the contact area between the catalyst and the electrolyte, as well as shortens the distance for mass/electron transfer. This enhancement promotes electron transfer to facilitate water decomposition. FeCo-P exhibits excellent hydrogen evolution (HER) and oxygen evolution (OER) performance when reaching @ 10 mA cm-2 in 1 mol L-1 KOH, with overpotentials of 131/240 mV for HER/OER. Furthermore, when FeCo-P is used as both the cathode and anode for overall water splitting (OWS), it only requires low voltages of 1.49, 1.55, and 1.57 V to achieve CDs of 10, 100, and 300 mA cm-2 , respectively. Density functional theory calculations indicate that constructing a Co2 P and FeP heterogeneous interface with good lattice matching can facilitate electron redistribution, thereby enhancing the electrocatalytic performance of OWS. This work opens up new possibilities for the rational design of efficient water electrolysis catalysts derived from MOFs.
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Affiliation(s)
- Hualin Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Zhe Zhao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Gang Li
- Power China Jiangxi Electric Power Construction Co. Ltd., Nanchang, 330063, P. R. China
| | - Mengxue Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Pinghua Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Xiaotian Liu
- Power China Jiangxi Electric Power Construction Co. Ltd., Nanchang, 330063, P. R. China
| | - Xinman Tu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Yitian Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
| | - Zhen Shen
- Power China Jiangxi Electric Power Construction Co. Ltd., Nanchang, 330063, P. R. China
| | - Yirou Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, National-local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource Utilization, Institute of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, P. R. China
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Wang N, Wang X, Liu Y, Wu Z. Storage-reduction strategy for NO reduction from gas turbine exhaust with W–Ti-CeO catalyst in nature gas power plant. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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