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Fan J, Zhang X, Han M, Xiang X, Guo C, Lin Y, Shi N, Xu D, Lai Y, Bao J. Amorphous Ni-Fe-Mo Oxides Coupled with Crystalline Metallic Domains for Enhanced Electrocatalytic Oxygen Evolution by Promoted Lattice-Oxygen Participation. Small 2024; 20:e2303927. [PMID: 37875651 DOI: 10.1002/smll.202303927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/10/2023] [Indexed: 10/26/2023]
Abstract
The crystalline/amorphous heterophase nanostructures are promising functional materials for biomedicals, catalysis, energy conversion, and storage. Despite great progress is achieved, facile synthesis of crystalline metal/amorphous multinary metal oxides nanohybrids remains challenging, and their electrocatalytic oxygen evolution reaction (OER) performance along with the catalytic mechanism are not systematically investigated. Herein, two kinds of ultrafine crystalline metal domains coupled with amorphous Ni-Fe-Mo oxides heterophase nanohybrids, including Ni/Ni0.5-a Fe0.5 Mo1.5 Ox and Ni-FeNi3 /Ni0.5-b Fe0.5-y Mo1.5 Ox , are fabricated through controllable reduction of amorphous Ni0.5 Fe0.5 Mo1.5 Ox precursors by simply tuning the amount of used reductant. Due to the suited component in metal domains, the special structure with dense crystalline/amorphous interfaces, and strong electronic coupling of their components, the resultant Ni-FeNi3 /Ni0.5-b Fe0.5-y Mo1.5 Ox nanohybrids show greatly enhanced OER activity with a low overpotential (278 mV) to reach 10 mA cm-2 current density and ultrahigh turnover frequency (38160 h-1 ), outperforming Ni/Ni0.5-a Fe0.5 Mo1.5 Ox , Ni0.5 Fe0.5 Mo1.5 Ox precursors, commercial IrO2 , and most of recently reported OER catalysts. Also, such Ni-FeNi3 /Ni0.5-b Fe0.5-y Mo1.5 Ox nanohybrids manifest good catalytic stability. As revealed by a series of spectroscopy and electrochemical analyses, their OER mechanism follows the lattice-oxygen-mediated (LOM) pathway. This work may shed light on the design of advanced heterophase nanohybrids, and promote their applications in water splitting, metal-air batteries, or other clean energy fields.
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Affiliation(s)
- Jiayao Fan
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xinyu Zhang
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Min Han
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
| | - Xing Xiang
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Cong Guo
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yue Lin
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Naien Shi
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yu Lai
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Jianchun Bao
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
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Fan J, Wang L, Xiang X, Liu Y, Shi N, Lin Y, Xu D, Jiang J, Lai Y, Bao J, Han M. Porous Flower-Like Nanoarchitectures Derived from Nickel Phosphide Nanocrystals Anchored on Amorphous Vanadium Phosphate Nanosheet Nanohybrids for Superior Overall Water Splitting. Small Methods 2024:e2301279. [PMID: 38189527 DOI: 10.1002/smtd.202301279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/30/2023] [Indexed: 01/09/2024]
Abstract
Transition metal phosphides (TMPs) and phosphates (TM-Pis) nanostructures are promising functional materials for energy storage and conversion. Nonetheless, controllable synthesis of crystalline/amorphous heterogeneous TMPs/TM-Pis nanohybrids or related nanoarchitectures remains challenging, and their electrocatalytic applications toward overall water splitting (OWS) are not fully explored. Herein, the Ni2 P nanocrystals anchored on amorphous V-Pi nanosheet based porous flower-like nanohybrid architectures that are self-supported on carbon cloth (CC) substrate (Ni2 P/V-Pi/CC) are fabricated by conformal oxidation and phosphorization of pre-synthesized NiV-LDH/CC. Due to the unique microstructures and strong synergistic effects of crystalline Ni2 P and amorphous V-Pi components, the obtained Ni2 P/V-Pi/CC owns abundant active sites, suitable surface/interface electronic structure and optimized adsorption-desorption of reaction intermediates, resulting in outstanding electrocatalytic performances toward hydrogen and oxygen evolution reactions in alkaline media. Correspondingly, the assembled Ni2 P/V-Pi/CC||Ni2 P/V-Pi/CC electrolyzer only needs an ultralow cell voltage (1.44 V) to deliver 10 mA cm-2 water-splitting currents, exceeding its counterparts, recently reported bifunctional catalysts-based devices, and Pt/C/CC||IrO2 /CC pairs. Moreover, the Ni2 P/V-Pi/CC||Ni2 P/V-Pi/CC manifests remarkable stability. Also, such device shows a certain prospect for OWS in acidic media. This work may spur the development of TMPs/TMPis-based nanohybrid architectures by combining structure and phase engineering, and push their applications in OWS or other clean energy options.
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Affiliation(s)
- Jiayao Fan
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Lei Wang
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Xing Xiang
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Ying Liu
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Naien Shi
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Yue Lin
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science & Technology of China, Hefei, 230026, P. R. China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Jiadong Jiang
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Yu Lai
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
| | - Jianchun Bao
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Min Han
- Fujian Cross Strait Institute of Flexible Electronics (Future Technology), Fujian Normal University, Fuzhou, 350117, P. R. China
- Jiangsu Key Laboratory of New Power Batteries, and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China
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