塔菲尔方程
电催化剂
过电位
热重分析
金属有机骨架
吸附
多孔性
钯
材料科学
热稳定性
催化作用
化学工程
化学
无机化学
物理化学
电化学
有机化学
电极
复合材料
工程类
作者
Ming Nie,Haiyi Sun,Dan Lei,Shuai Kang,Jinhui Liao,Peitao Guo,Zhenhong Xue,Fengjuan Xue
标识
DOI:10.1016/j.matchemphys.2020.123481
摘要
Weak electrical conduction impedes the application of Metal-organic framework (MOF) in electrochemistry. In this work, palladium-based MOF (Pd/MOF) is synthesized via i) simple solvothermal process and ii) direct chemical reduction method. N2 adsorption-desorption isotherms and thermogravimetric analyzer show that MOF have large specific surface area and good thermal stability. The synthesized materials were tested in acidic condition for hydrogen evolution reaction (HER). Electrochemical test results show that Pd/MOF with tafel slope of 85 mV·dec−1, onset overpotential of 105 mV and ideal stability has better performance than bulk MOF for HER. The enhanced performance can be ascribed to the large porosity and specific surface of MOF, and the synergistic effect between Pd and MOF toward H2 production.
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