3D Nitrogen‐Anion‐Decorated Nickel Sulfides for Highly Efficient Overall Water Splitting
Abstract
Developing non‐noble‐metal electrocatalysts with high activity and low cost for both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is of paramount importance for improving the generation of H 2 fuel by electrocatalytic water‐splitting. This study puts forward a new N‐anion‐decorated Ni 3 S 2 material synthesized by a simple one‐step calcination route, acting as a superior bifunctional electrocatalyst for the OER/HER for the first time. The introduction of N anions significantly modifies the morphology and electronic structure of Ni 3 S 2, bringing high surface active sites exposure, enhanced electrical conductivity, optimal HER Gibbs free‐energy (ΔG H*), and water adsorption energy change (ΔG H2O*). Remarkably, the obtained N‐Ni 3 S 2/NF 3D electrode exhibits extremely low overpotentials of 330 and 110 mV to reach a current density of 100 and 10 mA cm−2 for the OER and HER in 1.0 m KOH, respectively. Moreover, an overall water‐splitting device comprising this electrode delivers a current density of 10 mA cm−2 at a very low cell voltage of 1.48 V. Our finding introduces a new way to design advanced bifunctional catalysts for water splitting.
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Co9S8 is an attractive material for HER because of its good catalytic activity and stability.
“Co9S8 is regarded as an attractive material for HER because of its good catalytic activity and stability [24–33].”
From Synthesis of Au/Co9S8 composite aerogels by one-step sol–gel method as hydrogen evolution reaction electrocatalysts (2021) · cites this paper as [26]
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- Authors
- Chen, P., Zhou, T., Zhang, M., Tong, Y., Zhong, C., Zhang, N., Zhang, L., Wu, C., & Xie, Y.
- Affiliations
- University of Science and Technology of China (CN)
- Hefei National Laboratory for Physical Science at the Microscale iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China Hefei Anhui 230026 P. R. China
- Corresponding author
- Wu, Changzheng
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2017-06-09
- Volume
- 29
- Issue
- 30
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2623419721
- Cited by
- 643
- References
- 3
- Citations by year
- 2026: 10 · 2025: 42 · 2024: 44 · 2023: 52 · 2022: 86 · 2021: 102 · 2020: 104 · 2019: 108 · 2018: 79 · 2017: 14
- FWCI
- 22.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Materials (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (U1432133, U1532265, 11621063, 21331005, J1030412)
- Chinese Academy of Sciences (XDB01020300)
- 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 › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Keywords
- Ni3S2, bifunctional electrocatalysts, oxygen evolution reaction, hydrogen evolution reaction, overall water splitting, non-noble metal catalysts, water adsorption energy, calcination synthesis, nickel foam
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