Ni-C-N Nanosheets as Catalyst for Hydrogen Evolution Reaction
Ni-C-N Nanosheets as Catalyst for Hydrogen Evolution Reaction
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Ni-C-N 纳米片作为析氢反应的催化剂
DOI：
10.1021/jacs.6b09351
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发表时间：
2016
影响因子：
15
通讯作者：
Sun Shouheng
中科院分区：
文献类型：
--
作者：
Yin Jie;Fan Qiaohui;Li Yuxuan;Cheng Fangyi;Zhou Panpan;Xi Pinxian;Sun Shouheng
我们报道了一种简单的氮化/剥离法制备杂化Ni-C-N纳米薄片的方法。这些纳米薄片的厚度为<；2 nm，化学稳定性好，并且具有金属导电性。在0.5M H_2SO_4、1.0M KOH或1.0M PBS(pH=7)中，它们对析氢反应具有很强的催化作用。例如，它们催化0.5M硫酸溶液中的析氢反应，起始电位为34.7 mV，过电位为60.9 mV(atj=10 mA cm-2)，并具有显著的长期稳定性(70h后∼电流下降10%)。它们很有希望成为一种实用的析氢反应的非铂催化剂。
We report a facile nitrogenation/exfoliation process to prepare hybrid Ni–C–N nanosheets. These nanosheets are <2 nm thin, chemically stable, and metallically conductive. They serve as a robust catalyst for the hydrogen evolution reaction in 0.5 M H2SO4, or 1.0 M KOH or 1.0 M PBS (pH = 7). For example, they catalyze the hydrogen evolution reaction in 0.5 M H2SO4at an onset potential of 34.7 mV, an overpotential of 60.9 mV (atj= 10 mA cm–2) and with remarkable long-term stability (∼10% current drop after 70 h testing period). They are promising as a non-Pt catalyst for practical hydrogen evolution reaction.