Component Engineering of Multiphase Nickel Sulfide-Based Bifunctional Electrocatalysts for Efficient Overall Water Splitting Article Swipe
Nianrui Qu
,
Lu Han
,
Tianhui Wu
,
Qingzhi Luo
,
Shoufeng Tang
,
Jianmin Gu
,
Desong Wang
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/coatings13111938
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3390/coatings13111938
The development of highly efficient and low-cost bifunctional electrocatalysts for water splitting has become increasingly attractive. So far, the strategies to optimize electrocatalytic performance have mainly focused on enhancing the active sites and regulating the surface structures through doping foreign metal or anions into the composites; however, the internal and external adjustments achieved by tuning the chemical composition and crystalline phases in a material in order to investigate the composition-dependent catalytic activity has generally remained limited. Here, through various in situ composition-dependent nickel sulfides grown while controlling the sulfidation degree, we achieve the precise regulation of nickel sulfides from a single-phase component to multiple-phase components (i.e., two-phase components and three-phase components), further comparing the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances. Benefiting from the synergy of an analogous uniform nanoarray structure and excellent intrinsic activation, the as-obtained NixSy-5, with three-phase components, shows low overpotentials at 10 mA cm−2 for HER (148 mV) and OER (111 mV), as well as a low cell voltage of 1.48 V for overall water splitting in alkaline media, which are among the best results ever reported for overall water splitting.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/coatings13111938
- https://www.mdpi.com/2079-6412/13/11/1938/pdf?version=1699940403
- OA Status
- gold
- Cited By
- 2
- References
- 71
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4388671642
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- OpenAlex ID
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https://openalex.org/W4388671642Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/coatings13111938Digital Object Identifier
- Title
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Component Engineering of Multiphase Nickel Sulfide-Based Bifunctional Electrocatalysts for Efficient Overall Water SplittingWork title
- Type
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articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-11-14Full publication date if available
- Authors
-
Nianrui Qu, Lu Han, Tianhui Wu, Qingzhi Luo, Shoufeng Tang, Jianmin Gu, Desong WangList of authors in order
- Landing page
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https://doi.org/10.3390/coatings13111938Publisher landing page
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https://www.mdpi.com/2079-6412/13/11/1938/pdf?version=1699940403Direct link to full text PDF
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2079-6412/13/11/1938/pdf?version=1699940403Direct OA link when available
- Concepts
-
Bifunctional, Water splitting, Sulfidation, Nickel, Nickel sulfide, Oxygen evolution, Materials science, Sulfide, Chemical engineering, Catalysis, Phase (matter), Nanotechnology, Chemistry, Electrode, Electrochemistry, Metallurgy, Physical chemistry, Organic chemistry, Photocatalysis, EngineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
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2Total citation count in OpenAlex
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2025: 1, 2024: 1Per-year citation counts (last 5 years)
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71Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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