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Elaborately assembled core-shell structured metal sulfides as a bifunctional catalyst for highly efficient electrochemical overall water splitting
Open accessAbstract
Abstract Low efficiency, short lifetimes, and limited kinds of catalysts are still three fundamental shortcomings that have plagued electrochemical water splitting. Herein, we rationally synthesized a cost-effective Co3S4@MoS2 hetero-structured catalyst that has proven to be a highly active and stable bifunctional catalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline environment. The heterostructure was obtained via a first hydrothermal approach to obtain hollow Co3S4 nanoboxes based on the ionic exchange reaction between Fe(CN)63− of Co-Fe Prussian blue analogue (PBA) and S2− at 120 °C, and the subsequent in situ growth of MoS2 nanosheets on the surface of Co3S4 nanoboxes at an elevated temperature of 200 °C. The synergistic effects between the active and stable HER catalyst of MoS2 and the efficient OER catalyst of Co3S4, as well as the morphological superiority of hollow and core-shell structures, endow Co3S4@MoS2 with remarkable electrocatalytic performance and robust durability toward overall water splitting. As a result, the designed non-noble electrocatalyst of Co3S4@MoS2 exhibits a low overpotential of 280 mV for OER and 136 mV for HER at a current density of 10 mA cm−2 in an alkaline solution. Meanwhile, a low cell voltage of 1.58 V is achieved by using the heterostructure as both anode and cathode catalysts. This work paves the way to the design and construction of other prominent electrocatalysts for overall water splitting.
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Self-citationMetal‐Nitrogen‐Doped Carbon Materials as Highly Efficient Catalysts: Progress and Rational Design
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Ultrathinning Nickel Sulfide with Modulated Electron Density for Efficient Water Splitting
Fei, B., Chen, Z., Liu, J., Xu, H., Yan, X., Qing, H., Chen, M., & Wu, R. (2020) · Advanced Energy Materials · doi:10.1002/aenm.202001963 · Cited by 372
Wang, J., Fang, W., Hu, Y., Zhang, Y., Dang, J., Wu, Y., Chen, B., Zhao, H., & Li, Z. (2021) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2021.120490 · Cited by 259
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Metadata
- Authors
- Guo, Y., Tang, J., Wang, Z., Kang, Y.-M., Bando, Y., & Yamauchi, Y.
- Venue
- Nano Energy
- Publisher
- Elsevier BV
- Published
- 2018-05
- Volume
- 47
- Pages
- 494-502
- ISSN
- 2211-2855 (ISSN-L)
- OpenAlex
- W2790665974
- Cited by
- 433
- References
- 7
- FWCI
- 15.55
- Type
- journal article
- Language
- en
- Open access
- green
- Licence
- www.elsevier.com/tdm/userlicense/1.0/ (tdm)
- www.elsevier.com/legal/tdmrep-license (tdm)
- Funders
- Korea Institute of Energy Technology Evaluation and Planning
- Japan Society for the Promotion of Science (17F17080)
- Australian Research Council (FT150100479, 17H05393, 17K19044)
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- Guo, Y., Tang, J., Wang, Z., Kang, Y.-M., Bando, Y., & Yamauchi, Y. (2018). Elaborately assembled core-shell structured metal sulfides as a bifunctional catalyst for highly efficient electrochemical overall water splitting. Nano Energy. https://doi.org/10.1016/j.nanoen.2018.03.012
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