Interface Engineering of MoS2/Ni3S2Heterostructures for Highly Enhanced Electrochemical Overall-Water-Splitting Activity

Zhang J, Wang T, Pohl D, Rellinghaus B, Dong R, Liu S, Zhuang X, Feng X (2016)

Publication Type: Journal article

Publication year: 2016

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 55

Pages Range: 6702-6707

Journal Issue: 23

DOI: 10.1002/anie.201602237

Abstract

To achieve sustainable production of H2fuel through water splitting, low-cost electrocatalysts for the hydrogen-evolution reaction (HER) and the oxygen-evolution reaction (OER) are required to replace Pt and IrO2catalysts. Herein, for the first time, we present the interface engineering of novel MoS2/Ni3S2heterostructures, in which abundant interfaces are formed. For OER, such MoS2/Ni3S2heterostructures show an extremely low overpotential of ca. 218 mV at 10 mA cm-2, which is superior to that of the state-of-the-art OER electrocatalysts. Using MoS2/Ni3S2heterostructures as bifunctional electrocatalysts, an alkali electrolyzer delivers a current density of 10 mA cm-2at a very low cell voltage of ca. 1.56 V. In combination with DFT calculations, this study demonstrates that the constructed interfaces synergistically favor the chemisorption of hydrogen and oxygen-containing intermediates, thus accelerating the overall electrochemical water splitting.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Universität Rostock DE Germany (DE) Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE)

How to cite

APA:

Zhang, J., Wang, T., Pohl, D., Rellinghaus, B., Dong, R., Liu, S.,... Feng, X. (2016). Interface Engineering of MoS2/Ni3S2Heterostructures for Highly Enhanced Electrochemical Overall-Water-Splitting Activity. Angewandte Chemie International Edition, 55(23), 6702-6707. https://doi.org/10.1002/anie.201602237

MLA:

Zhang, Jian, et al. "Interface Engineering of MoS2/Ni3S2Heterostructures for Highly Enhanced Electrochemical Overall-Water-Splitting Activity." Angewandte Chemie International Edition 55.23 (2016): 6702-6707.

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