期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 6, 期 3, 页码 833-836出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta08907d
关键词
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资金
- National Natural Science Foundation of China [21775063, 21535002]
- Shandong Provincial Natural Science Foundation [ZR2017BB065, ZR2016QZ001]
It is highly attractive but challenging to design and develop noble-metal-free catalysts with outstanding electrocatalytic activity for the hydrogen evolution reaction (HER) in alkaline media. In this work, we demonstrate the development of Ni(OH)(2)-Ni3N nanoarrays on Ti mesh (Ni(OH)(2)-Ni3N/TM) as a three-dimensional (3D) HER catalyst in alkaline solutions. Due to the heterostructure from interface engineering, Ni(OH)(2)-Ni3N/TM shows excellent alkaline HER activity only requiring an overpotential of 72 mV to deliver the current density of 20 mA cm(-2) in 1.0 M KOH. Such an electrocatalyst also exhibits long-term electrochemical durability maintaining its activity for at least 25 h.
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