Cited by 47Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsHydrogen Storage and Materials

Multi-metal electrocatalyst with crystalline/amorphous structure for enhanced alkaline water/seawater hydrogen evolution

Chen, Songbo, Liu, Dong, Zhou, Pengfei, Qiao, Lulu, An, Keyu, Zhuo, Yuling, Lu, Jianxi, Liu, Qizhen +3 more·2023·Journal of Colloid and Interface Science

Abstract

The development of well-defined nanomaterials as non-noble metal electrocatalysts has broad application prospect for hydrogen generation technology. Recently, multi-metal electrocatalysts for hydrogen evolution reaction (HER) have attracted extensive attention due to their high catalytic performance arising from the synergistic effect of multi-metal interaction. However, most multi-metal catalysts suffer from the limited synergistic effect because of poor interfacial compatibility between different components. Here, a novel multi-metal catalyst (Ni/MoO 2 @CoFeO x ) nanosheet with a crystalline/amorphous structure is demonstrated, which shows high HER activity. Ni/MoO 2 @CoFeO x exhibits an ultra-low overpotential of 18, 39, and 93 mV at 10 mA cm -2 in alkaline water, alkaline seawater and natural seawater, respectively, which outperformances most of the state-of-the-art non-noble metal compounds. In addition, the catalyst shows exceptional stability under 500 mA cm -2 in alkaline solution. In-situ Raman and other advanced structural characterization confirms the excellent catalytic activity is mainly contributed by: (1) the strong synergistic effect of multi-metal components provides multiple active sites in the catalytic process; (2) the crystalline/amorphous interface in Ni/MoO 2 @CoFeO x boosts the catalytically active sites and structure stability; (3) the crystalline phase enhances the intrinsic conductivity greatly; and (4) the amorphous phase provides abundant unsatura…

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Crossref · 10.1016/j.jcis.2023.07.048

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Authors
Chen, S., Liu, D., Zhou, P., Qiao, L., An, K., Zhuo, Y., Lu, J., Liu, Q., Ip, W. F., Wang, Z., & Pan, H.
Affiliations
  • Shenzhen University (CN)
  • University of Macau (MO)
Corresponding author
  • Liu, Dong
  • Ip, Weng Fai
  • Pan, Hui
Venue
Journal of Colloid and Interface Science
Publisher
Elsevier BV
Published
2023-11
Volume
650
Issue
Pt A
Pages
807-815
ISSN
0021-9797 (ISSN-L)
OpenAlex
W4383677188
Cited by
47
References
61
Citations by year
2026: 10 · 2025: 19 · 2024: 15 · 2023: 3
FWCI
2.24
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Colloid and Interface Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (51802059, 22209115, 22075062)
  • Fundo para o Desenvolvimento das Ciências e da Tecnologia (006/2022/ALC, 0154/2019/A3, 0111/2022/A2, SGDX20210823103803017, MYRG2022-00026-IAPME, MYRG2020-00026-FST)
  • Science, Technology and Innovation Commission of Shenzhen Municipality (JCYJ20210324120400002, 20220809160615001, KQTD20210811090045006)
  • Universidade de Macau
  • Science and Technology Development Fund
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
Keywords
hydrogen evolution reaction, amorphous-crystalline interface, non-noble metal catalysts, alkaline seawater, alkaline water, nanosheets, catalyst stability, synergistic effect

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