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Cited by 197Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsSupercapacitor Materials and Fabrication

Bifunctional Electrocatalysts Based on Mo-Doped NiCoP Nanosheet Arrays for Overall Water Splitting

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Lin, Jinghuang, Yan, Yaotian, Li, Chun, Si, Xiaoqing, Wang, Haohan, Qi, Junlei, Cao, Jian, Zhong, Zhengxiang +2 more·2019·Nano-Micro Letters
DOI 10.1007/s40820-019-0289-6PMC PMC7770736
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Abstract

Rational design of efficient bifunctional electrocatalysts is highly imperative but still a challenge for overall water splitting. Herein, we construct novel freestanding Mo-doped NiCoP nanosheet arrays by the hydrothermal and phosphation processes, serving as bifunctional electrocatalysts for overall water splitting. Notably, Mo doping could effectively modulate the electronic structure of NiCoP, leading to the increased electroactive site and improved intrinsic activity of each site. Furthermore, an electrochemical activation strategy is proposed to form Mo-doped (Ni,Co)OOH to fully boost the electrocatalytic activities for oxygen evolution reaction. Benefiting from the unique freestanding structure and Mo doping, Mo-doped NiCoP and (Ni,Co)OOH show the remarkable electrochemical performances, which are competitive among current researches. In addition, an overall water splitting device assembled by both electrodes only requires a cell voltage of 1.61 V to reach a current density of 10 mA cm−2. Therefore, this work opens up new avenues for designing nonprecious bifunctional electrocatalysts by Mo doping and in situ electrochemical activation.

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  • Mo doping with a high-valence charge in S,P-(Ni,Fe)OOH effectively improved OER performance via modulating the catalyst's surface electronic structure.

    “These results reveal that Mo doping with a high-valence charge in S,P-(Ni,Fe)OOH effec tively improved OER performance via modulating the catalyst's surface electronic structure [33].”

    From Wood aerogel-derived sandwich-like layered nanoelectrodes for alkaline overall seawater electrosplitting (2021) · cites this paper as [33]

    The Results and Discussion (page not supplied) report that Mo doping improves OER activity in activated (Ni,Co)OOH and modifies the electronic structure of Ni centers; the paper also identifies Mo⁶⁺. The claimed S,P-(Ni,Fe)OOH is a different composition: this study uses Ni and Co, and reports no detectable P signal after activation. It therefore supports the general Mo-doping mechanism, not its application to the named catalyst. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

  • Mo doping has a positive effect toward water adsorption.

    “which further proved the positive effect of Mo doping toward water adsorption (Fig. 7(c))[35].”

    From Interface and electronic structure regulation of Mo-doped NiSe2-CoSe2 heterostructure aerogel for efficient overall water splitting (2023) · cites this paper as [35]

    The Results and Discussion section on HER says Mo sites adsorb hydrogen and suggests Mo doping may tune hydrogen adsorption; it discusses water dissociation separately. The passages found when searching for water adsorption do not say that Mo doping improves adsorption of water itself. (LLM, conf=0.76)

    Experimental — accuracy not yet measured

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Research works printed but not linked: 42

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Cited by

Sorted by citations

Authors
Lin, J., Yan, Y., Li, C., Si, X., Wang, H., Qi, J., Cao, J., Zhong, Z., Fei, W., & Feng, J.
Affiliations
Harbin Institute of Technology (CN)
Corresponding author
Qi, Junlei
ORCID
Venue
Nano-Micro Letters
Publisher
Springer Science and Business Media LLC
Published
2019-07-13
Volume
11
Issue
1
Pages
55-55
ISSN
  • 2150-5551 (ISSN-L)
  • 2311-6706
DOI
10.1007/s40820-019-0289-6
PMC
PMC7770736
OpenAlex
W2961811038
Cited by
197
References
4
Citations by year
2026: 10 · 2025: 25 · 2024: 37 · 2023: 43 · 2022: 29 · 2021: 24 · 2020: 23 · 2019: 6
FWCI
4.36
Type
journal article
Language
en
Open access
Licence
Locations
  • Nano-Micro Letters (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
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 › Electronic, Optical and Magnetic Materials › Supercapacitor Materials and Fabrication
Keywords
bifunctional electrocatalysts, overall water splitting, nanosheet arrays, oxygen evolution reaction, hydrogen evolution reaction, electronic structure modulation, electrochemical activation, non-precious metal electrocatalysts

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