Zhang Mengxin, Lin Quanjie, Wu Wangui, Ye Yingxiang, Yao Zizhu, Ma Xiuling, Xiang Shengchang, Zhang Zhangjing
Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, P. R. China.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.
ACS Appl Mater Interfaces. 2020 Apr 8;12(14):16367-16375. doi: 10.1021/acsami.9b23356. Epub 2020 Mar 25.
Here we synthesized two new isostructural MOFs (FJU-82-Co/FJU-82-Zn) and first observed that tuning of the proton conductivity may provide an effective strategy to improve the electrocatalytic OER perfomances of isostructural crystalline MOF materials. The conductivity value for FJU-82-Co is 7.40 × 10 S cm, which is 127-fold that for FJU-82-Zn with 5.80 × 10 S cm at 60 °C and 98% RH, while the overpotential of FJU-82-Co is 0.57 V at 1 mA cm, which is better than that of FJU-82-Zn with 1.17 V.
在此，我们合成了两种新的同构金属有机框架材料（FJU-82-Co/FJU-82-Zn），并首次观察到调节质子传导率可能是提高同构晶体金属有机框架材料电催化析氧反应性能的有效策略。在60°C和98%相对湿度条件下，FJU-82-Co的电导率值为7.40×10 S cm，是FJU-82-Zn（5.80×10 S cm）的127倍，而FJU-82-Co在1 mA cm时的过电位为0.57 V，优于FJU-82-Zn的1.17 V。
