催化作用
阳极
制作
电解
纳米材料
纳米技术
材料科学
制氢
电催化剂
尿素
基质(水族馆)
动力学
化学
化学工程
电化学
电极
工程类
有机化学
医学
替代医学
海洋学
物理
物理化学
病理
量子力学
地质学
电解质
作者
Li Chen,Wenbo Xu,Guofa Dong,Meng-Der Fang
标识
DOI:10.20944/preprints202307.0073.v1
摘要
Urea, a prevalent component found in wastewater, shows great promise as an alternative substrate to water for energy-efficient hydrogen production by electrolysis. However, the sluggish kinetics of the anodic urea oxidation reaction (UOR) significantly hampers the overall reaction rate. To address this challenge, this article presents a comprehensive study focusing on the controlled fabrication of hierarchically structured nanomaterials as potential catalysts for UOR. The prepared MnO2@NiCo-LDH hybrid catalyst demonstrates remarkable improvements in reaction kinetics, benefiting from synergistic enhancements in charge transfer and efficient mass transport facilitated by its unique three-dimensional architecture. Notably, the catalyst exhibits an exceptionally low onset potential of 1.228 V and requires only 1.326 V to achieve an impressive current density of 100 mA cm-2, representing a state-of-the-art performance in UOR. These findings highlight the tremendous potential of this innovative material-designing strategy to drive advancements in electrocatalytic processes.
科研通智能强力驱动
Strongly Powered by AbleSci AI