期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 4, 期 36, 页码 13916-13922出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta05618k
关键词
-
资金
- Ministry of Education, Republic of Singapore [MOE R-263-000-B38-112, R-263-000-B63-112]
Three-dimensional (3D) nanomaterials are rendered with large specific surface areas as well as desired physicochemical, electrical and catalytic properties for a large variety of functional applications. In this work, 3D Ni3S2 superstructures (needle array and leaf pattern) were created on nickel foams (NFs) through an in situ chemical etching (ICE) method. This anisotropic growth involves chemical dissolution, in situ nucleation and re-deposition processes, which endows the as-fabricated Ni3S2 with large surface areas and warrants firm adhesion to the NF as well. Importantly, the Ni3S2@ NF can directly serve as effective binder-free electrodes for hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs) from electrocatalytic water splitting.
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