Cerium-Based Metal-Organic Framework Nanocrystals Interconnected by Carbon Nanotubes for Boosting Electrochemical Capacitor Performance

Cheng Hui Shen, Cheng Hsun Chuang, Yu Juan Gu, Wei Huan Ho, Yi Da Song, Yu Chuan Chen, Yi Ching Wang, Chung Wei Kung

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

In this study, nanocrystals of a cerium-based metal-organic framework (Ce-MOF), Ce-MOF-808, are directly grown on the surface of carboxylic acid-functionalized carbon nanotubes (CNTs) by a facile one-step solvothermal synthesis method. Ce-MOF-CNT nanocomposites with various Ce-MOF-to-CNT ratios are synthesized, and their crystallinity, morphology, porosity, and electrical conductivity are examined. The redox-hopping and electrochemical behaviors of the pristine Ce-MOF in aqueous electrolytes are investigated, suggesting that the pristine Ce-MOF is electrochemically active but possesses a limited charge-transport behavior. As a demonstration, all the Ce-MOF, CNT, and nanocomposites are used as active materials for application in aqueous-based supercapacitors. The capacitive performance of the CNT can be significantly boosted with the help of redox-active Ce-MOF-808 nanocrystals.

原文English
頁(從 - 到)16418-16426
頁數9
期刊ACS Applied Materials and Interfaces
13
發行號14
DOIs
出版狀態Published - 2021 四月 14

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)

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