Cationic metal-organic framework with charge separation effect as a high output triboelectric nanogenerator material for self-powered anticorrosion

New stable frictional materials based on metal-organic frameworks (MOFs) are greatly desired for applications in self-powered systems. This work reports an ionic MOF material with efficient charge separation mediated by charge induction. ZUT-iMOF-1(Cu) is chemically stable and its triboelectric outp...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2023-09, Vol.52 (37), p.13316-13323
Hauptverfasser: Shao, Zhichao, Cheng, Haoran, Wei, Yi, Chen, Junshuai, Gao, Kexin, Fang, Zhe, Yan, Yangshuang, Mi, Liwei, Hou, Hongwei
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Sprache:eng
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Zusammenfassung:New stable frictional materials based on metal-organic frameworks (MOFs) are greatly desired for applications in self-powered systems. This work reports an ionic MOF material with efficient charge separation mediated by charge induction. ZUT-iMOF-1(Cu) is chemically stable and its triboelectric output performance surpasses those of traditional MOF materials. The short-circuit current of the iMOF triboelectric nanogenerator is 73.79 μA at 5 Hz. The output performance remains stable over 50 000 cycles of continuous operation. The charge and power densities peak at 123.20 μC m −2 and 3133.23 mW m −2 . Owing to its high output performance, ZUT-iMOF-1(Cu) effectively prevents metal corrosion in cathodic-protection systems. Theoretical calculations show that increasing the charge-separation effect promotes the frictional electricity generation behaviour. This study provides research suggestions for ionic MOF frictional materials and will promote their application in self-powered electrochemical cathodic-protection systems. A cationic metal-organic framework with good chemical stability and excellent triboelectric output performance was prepared. The good output performance makes ZUT-iMOF-1(Cu) effective in preventing metal corrosion in cathodic protection systems.
ISSN:1477-9226
1477-9234
DOI:10.1039/d3dt02185h