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Tunable 3D hierarchical Ni3S2 superstructures as efficient and stable bifunctional electrocatalysts for both H2 and O2 generations

Abstract

Three-dimensional (3D) nanomaterials have received great attention for large-scale functional applications due to their large specific surface areas as well as desired electrical, physicochemical and catalytic properties. Here we present a facile and effective synthetic route of in situ grown 3D hierarchical Ni3S2 superstructures (rod-like arrays and nanoforest patterns) on nickle foam. This handy strategy endues Ni3S2 superstructures with large surface ative areas, porosity and macro-/mesoporous structures as well. We show that this materials can serve as highly acitve, binder-free, bifunctional electrocatallysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Morevor, this materials are found to give ~100% Faradaic yield toward both HER and OER and to exhibite remarkable catalytic stability (for > 50 h).

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Publication details

The article was received on 08 Dec 2017, accepted on 08 Feb 2018 and first published on 08 Feb 2018


Article type: Paper
DOI: 10.1039/C7TA10790K
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Tunable 3D hierarchical Ni3S2 superstructures as efficient and stable bifunctional electrocatalysts for both H2 and O2 generations

    L. Zeng, K. Sun, Z. Yang, S. Xie, Y. Chen, Z. Liu, Y. Liu, J. Zhao, Y. Liu and C. Liu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C7TA10790K

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