痕量NiP协同CoMoP纳米片促进高效析氢
Trace Amount of NiP Cooperative CoMoP Nanosheets Inducing Efficient Hydrogen Evolution.
作者信息
Wang Yechen, Wang Yange, Bai Jing, Lau Woon-Ming
机构信息
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, Center for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China.
Shunde Graduate School of University of Science and Technology Beijing, Foshan 528000, China.
出版信息
ACS Omega. 2021 Nov 26;6(48):33057-33066. doi: 10.1021/acsomega.1c05206. eCollection 2021 Dec 7.
As a very attractive clean energy, hydrogen has a high energy density and great potential to achieve zero pollution emission. Therefore, the preparation of hydrogen evolution electrocatalysts with excellent performance is an urgent task to ameliorate the global energy shortage and environmental pollution. Here, a trace amount of NiP coupled with CoMoP nanosheets (NCMP) was synthesized by the one-step hydrothermal method and low-temperature phosphidation. Studies have found that although the dosage of NiP is very low, its appearance has been efficient to improve the hydrogen evolution reaction (HER) performance of CoMoP, which may be induced by the synergistic effect of the two different components NiP and CoMoP. To find the superior catalyst, the effect of Ni content on the catalyst performance is also studied, and it is found that when the dosage of Ni is 0.02 mM, NCMP-2 (2 means 0.02 mM) displays the most outstanding overpotential (10 mA cm) of 46 mV.
作为一种极具吸引力的清洁能源，氢具有高能量密度以及实现零污染排放的巨大潜力。因此，制备具有优异性能的析氢电催化剂是缓解全球能源短缺和环境污染的一项紧迫任务。在此，通过一步水热法和低温磷化合成了微量NiP与CoMoP纳米片耦合的材料（NCMP）。研究发现，尽管NiP的用量非常低，但其出现有效地提高了CoMoP的析氢反应（HER）性能，这可能是由两种不同组分NiP和CoMoP的协同效应所致。为了找到性能更优的催化剂，还研究了Ni含量对催化剂性能的影响，发现当Ni的用量为0.02 mM时，NCMP-2（2表示0.02 mM）表现出最出色的过电位，在10 mA cm时为46 mV。
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