Synthesis of cuprous oxide nanocomposite electrodes by room-temperature chemical partial reduction

Kyung Soo Park, Seung Deok Seo, Yun Ho Jin, Seung Hun Lee, Hyun Woo Shim, Du Hee Lee, Dong Wan Kim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We demonstrate a template-free synthetic approach for the preparation of a highly conductive Cu/Cu2O nanocomposite electrode by a chemical reduction process. Cu2O octahedra were prepared through chemical dehydrogenation of as-synthesized Cu(OH)2 nanowire precursors. To provide a sufficiently electron-conducting network, the Cu2O particles were transformed into Cu/Cu2O nanocomposites by an intentional reduction process. The Cu/Cu2O nanocomposite electrodes showed enhanced cycling performance compared to Cu2O particles. Furthermore, their rate capabilities were superior to those of their mechanically mixed Cu/Cu2O counterparts. This enhanced electrochemical performance of the hybrid Cu/Cu2O nanocomposites was ascribed to the formation of homogeneous nanostructures, offering an efficient electron-transport path provided by the presence of highly dispersed Cu nanoparticles.

Original languageEnglish
Pages (from-to)9498-9503
Number of pages6
JournalDalton Transactions
Volume40
Issue number37
DOIs
Publication statusPublished - 2011 Oct 7
Externally publishedYes

ASJC Scopus subject areas

  • Inorganic Chemistry

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