Combustion-driven synthesis route for tunable TiO2/RuO2 hybrid composites as high-performance electrode materials for supercapacitors

By Park, Seonghyun; Shin, Dongjoon; Yeo, Taehan; Seo, Byungseok; Hwang, Hayoung; Lee, Jaeho; Choi, Wonjoon
Published in Chemical Engineering Journal 2019

Abstract

Hybrids of micro/nanostructured metals/metal oxides have great potential to provide high performance in electrochemical applications such as supercapacitors. However, their synthesis routes involve complex procedures that limit scalable fabrication. Herein, we report a combustion-driven synthesis route for tunable TiO2/RuO2 hybrid composites as high-performance electrode materials for supercapacitors. Self-propagating combustion waves passing through precursors consisting of TiO2 nanoparticles and combustible nitrocellulose directly fabricated carbon templates as sacrificial layers for the outermost functional metal oxides, while the initial mass loading of nitrocellulose manipulated the residual hybrids. Through substituting the pre-formed carbon templates with RuO2, tunable TiO2/RuO2 hybrid composites of core

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