Luan Xueying, Guo Lingfei, Li Hongdong, Xiao Weiping, Xu Guangrui, Chen Dehong, Li Caixia, Du Yunmei, Wu Zexing, Wang Lei
Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, 53 Zhengzhou Road, Qingdao, 266042, P. R. China.
College of Science, Nanjing Forestry University, Nanjing, Jiangsu, 210037, P. R. China.
Small. 2024 Nov;20(47):e2404830. doi: 10.1002/smll.202404830. Epub 2024 Aug 15.
The developed strategies for synthesizing metal phosphides are usually cumbersome and pollute the environment. In this work, an ultrafast (30 s) quasi-solid-state microwave approach is developed to construct cobalt-molybdenum phosphide decorated with Ru (Ru/CoP-MoP) featured porous morphology with interconnected channels. The specific nanostructure favors mass transport, such as electrolyte bubbles transfer and exposing rich active sites. Moreover, the coupling effects between metallic elements, especially the decorated Ru, also act as a pivotal role on enhancing the electrocatalytic performance. Benefiting from the effects of composition and specific nanostructure, the prepared Ru/CoP-MoP exhibits efficient HER performance with a current density of 10 mA cm achieved in 1 m KOH, 0.5 m HSO, seawater containing 1 m KOH and 1 m PBS, with overpotentials of 52, 59, 55, 90 mV, and coupling with good stability. This work opens a novel and fast avenue to design metal-phosphide-based nanomaterials in energy-conversion and storage fields.
已开发的合成金属磷化物的策略通常很繁琐且会污染环境。在这项工作中，开发了一种超快（30秒）的准固态微波方法来构建具有相互连接通道的、以多孔形态为特征的钌修饰的钴钼磷化物（Ru/CoP-MoP）。这种特殊的纳米结构有利于传质，比如电解液气泡转移以及暴露出丰富的活性位点。此外，金属元素之间的耦合效应，尤其是修饰的钌，在增强电催化性能方面也起着关键作用。受益于组成和特殊纳米结构的影响，所制备的Ru/CoP-MoP在1 m KOH、0.5 m H₂SO₄、含1 m KOH的海水和1 m PBS中表现出高效的析氢反应性能，在电流密度为10 mA cm⁻²时，过电位分别为52、59、55、90 mV，并且具有良好的稳定性。这项工作为在能量转换和存储领域设计基于金属磷化物的纳米材料开辟了一条新颖且快速的途径。
