Controllable design of high-efficiency triboelectric materials by functionalized metal–organic frameworks with a large electronwithdrawing functional group  

作　　者：Rongmei Wen Rui Feng Bo Zhao Jiangfeng Song Liming Fan Junyi Zhai 

机构地区：[1]Department of Chemistry,College of Science,North University of China,Taiyuan 030051,China [2]Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing 101400,China [3]College of Chemistry,State Key Laboratory of Elemento-Organic Chemistry,Nankai University,Tianjin 300071,China

出　　处：《Nano Research》2022年第10期9386-9391,共6页纳米研究（英文版）

基　　金：supported by National Natural Science Foundation of China(No.21905255);Natural Science Foundation of Shanxi Province(No.201901D211219).

摘　　要：Triboelectric nanogenerator(TENG)can directly convert mechanical energy into electric energy.However,the triboelectric materials are limited to the triboelectric series.Here,for the first time,we choose the isostructural UiO-66-X(X=H,NH_(2),NO_(2),and Br)family as triboelectric materials to investigate the underlying relationships between different functional groups and the triboelectric performance of TENG.Unlike traditional triboelectric material organic polymers,metal–organic frameworks(MOFs)can be oriented design synthesis and functionalized with various functional groups.The results demonstrate that the largest output voltage and current are from UiO-66-NO_(2) TENG,and are about 23.79 V and 0.29μA,which are 3.19 and 4.14 times over that of the UiO-66 TENG,respectively.The working mechanism of the MOF TENG was discussed in depth through experiments and theoretical calculations.This work proves a novel strategy to obtain high output properties by functionalized MOFs with large electron-withdrawing functional groups and promising guidance for the choice of high-efficiency triboelectric materials.

关 键 词：triboelectric nanogenerator metal-organic frameworks UiO-66 functional group ISOSTRUCTURAL 

分 类 号：O64[理学—物理化学]