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1篇 您的检索式：作者名="Qihang Bian"

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		题名	作者	年代	出处	被引量
	1	In situ electrochemical dehydrogenation of ultrathin Co(OH)_(2) nanosheets for enhanced hydrogen evolution显示文摘Transition metal hydroxides/oxyhydroxides have recently emerged as highly active electrocatalysts for oxygen evolution reaction in alkaline water electrolysis,while have not yet been widely investigated for hydrogen evolution electrocatalysts owing to their unfavorable H-adsorption,making it difficult to construct an overall-water-splitting cell for hydrogen production.In this work,we proposed a straightforward and effective approach to develop an efficient in-plane heterostructured CoOOH/Co(OH)_(2) catalyst via in-situ electrochemical dehydrogenation method,in which the dehydrogenated–CoOOH and Co(OH)_(2) at the surface synergistically boost the hydrogen evolution reaction(HER)kinetics in base as confirmed by high-resolution transmission electron microscope,synchrotron X-ray absorption spectroscopy,and electron energy loss spectroscopy.Due to the in-situ dehydrogenation of ultrathin Co(OH)_(2) nanosheets,the catalytic activity of the CoOOH/Co(OH)_(2) heterostructures is progressively improved,which exhibit outstanding hydrogen-evolving activity in base requiring a low overpotential of 132 m V to afford 10 m A/cm^(2)with very fast reaction kinetics after 60 h dehydrogenation.The gradually improved catalytic performance for the CoOOH/Co(OH)2is probably due to the enhanced H-adsorption induced by the synergistic effect of heterostructures and better conductivity of Co OOH relative to electrically insulating Co(OH)_(2).This work will open the opportunity for a new family of transition metal hydroxides/oxyhydroxides as active HER catalysts,and also highlight the importance of using in situ techniques to construct precious metal-free efficient catalysts for alkaline hydrogen evolution.	Qian Zhou Qihang Bian Liling Liao Fang Yu Dongyang Li Dongsheng Tang Haiqing Zhou	2023	Chinese Chemical Letters2023，34，1：	0

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