四唑
电催化剂
共价键
共价有机骨架
析氧
化学
钯
过电位
金属
水溶液中的金属离子
材料科学
高分子化学
无机化学
催化作用
有机化学
电化学
电极
物理化学
作者
Ying Liang,Tian Xia,Zhuangzhuang Wu,Yingjie Yang,Yongpeng Li,Zhuyin Sui,Chaokun Li,Ruimei Fan,Xinlong Tian,Qi Chen
标识
DOI:10.1016/j.mtchem.2022.100777
摘要
The search for functionalized covalent organic framework (COF) materials is significant on account of their great promise for frontline applications in various fields. Herein, a novel and convenient tactic is developed to design and fabricate the tetrazole-functionalized COF materials with abundant nitrogen atoms, which can provide active sites, facilitating the incorporation of COFs with metal ions. In particular, a β-ketoenamine-linked COF named COF-TpDb is selected as precursor for postsynthetic modification to introduce the tetrazole moieties to coordinate with metal ions cobalt (Co2+) and palladium (Pd2+), giving two functional metal-coordinated COFs complexes COF-TpDb-TZ-Co and COF-TpDb-TZ-Pd. The resultant COF-TpDb-TZ-Co displays a higher oxygen evolution reaction activity with a lower overpotential of 390 mV at a current density of 10 mA cm−2, which is much enhanced compared with COF-TpDb-TZ. The tactic for the fabrication of tetrazole-functionalized COFs with abundant nitrogen atoms implements rational design for the construction of functional COFs and expands the promising application of metal-coordinated COF materials in electrocatalysis.
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