乙二醇
硼氢化钠
材料科学
阳极
吸附
氧化还原
原电池
化学工程
纳米晶
动力学
电催化剂
催化作用
电化学
纳米技术
组合化学
化学
电极
有机化学
冶金
物理化学
工程类
物理
量子力学
作者
Bin Qiao,Ting Yang,Shufeng Shi,Nan Jia,Yu Chen,Xinbing Chen,Zhongwei An,Pei Chen
出处
期刊:Small
[Wiley]
日期:2021-02-16
卷期号:17 (10)
被引量:58
标识
DOI:10.1002/smll.202006534
摘要
Abstract The efficient electrocatalysts toward the ethylene glycol oxidation reaction (EGOR) are highly desirable for direct ethylene glycol fuel cells because of the sluggish kinetics of anodic EGOR. Herein, porous RhCu nanoboxes are successfully prepared through facile galvanic replacement reaction and succedent sodium borohydride reduction strategy. Benefiting from hierarchical pore structure, RhCu nanoboxes display excellent electrocatalytic performance toward the EGOR in alkaline medium with a mass activity of 775.1 A g Rh −1 , which is 2.8 times as large as that of commercial Rh nanocrystals. Moreover, the long‐term stability of RhCu nanoboxes is better than that of commercial Rh nanocrystals. Furthermore, the theoretical calculations demonstrate that RhCu nanoboxes possess lower adsorption energy of CO and lower reaction barrier (0.27 eV) for the CO ads oxidation with aid of the adsorbed OH ads species, resulting in the outstanding electrocatalytic performance toward the EGOR. This work provides a meaningful reference for developing highly effective electrocatalysts toward the EGOR.
科研通智能强力驱动
Strongly Powered by AbleSci AI