Wang Yuwei, He Jian, Zang Yipeng, Zhao Changbao, Di Miaomiao, Wang Bin
College of Physical Science and Technology, Bohai University Jinzhou 121013 China.
College of Chemistry and Materials Engineering, Bohai University Jinzhou 121013 China
RSC Adv. 2023 Sep 4;13(37):26144-26147. doi: 10.1039/d3ra04813f. eCollection 2023 Aug 29.
MoC demonstrates excellent performance in catalysis, and it has been found to possess excellent hydrogen evolution reaction (HER) catalytic activity and highly efficient nitrogen fixation. The catalytic activity of MoC is greatly influenced and restricted by the preparation method. Sintering and carbon deposition, which affect the catalytic activity of MoC, are inevitable in the traditional vapor-solid-solid (VSS) process. In this study, we report the controllable synthesis of α-MoC micron flowers by adjusting the growth temperature a vapor-liquid-solid (VLS) process. The density of the MoC micron flowers is closely related to the concentration of NaMoO aqueous solution. The as-grown MoC micron flowers dispersed with Pt are validated to be an enhanced collaborative electrocatalyst for HER against Pt/VSS-MoC.
碳化钼（MoC）在催化方面表现出优异的性能，并且已发现其具有出色的析氢反应（HER）催化活性和高效的固氮能力。MoC的催化活性受到制备方法的极大影响和限制。在传统的气-固-固（VSS）过程中，影响MoC催化活性的烧结和碳沉积是不可避免的。在本研究中，我们报告了通过调节生长温度，采用气-液-固（VLS）过程可控合成α-MoC微米花。MoC微米花的密度与钼酸钠水溶液的浓度密切相关。经验证，生长的分散有铂的MoC微米花是一种比铂/VSS-MoC更强的用于析氢反应的协同电催化剂。
