Solvothermal Synthesis of Mesoporous 3D-CuCo₂O₄ Hollow Tubes as Efficient Electrocatalysts for Methanol Electro-Oxidation
- Authors
- Tiongco, Diane Clare M.; Jadhav, Harsharaj S.; Roy, Animesh; Seo, Jeong Gil
- Issue Date
- Dec-2019
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Metal oxides; Hollow tubes; Electrocatalyst; Methanol oxidation; CuCo2O4
- Citation
- CHEMCATCHEM, v.11, no.24, pp.6078 - 6085
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMCATCHEM
- Volume
- 11
- Number
- 24
- Start Page
- 6078
- End Page
- 6085
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/11554
- DOI
- 10.1002/cctc.201901028
- ISSN
- 1867-3880
- Abstract
- Transition metal oxides have attracted attention as promising electrode materials for energy storage and conversion devices with high electrochemical activity and stability. In this study, a simple and cost-effective solvothermal synthesis of rectangular 3D CuCo2O4 hollow tubes have been developed for methanol electro-oxidation application. Electrochemical analysis shows that CuCo2O4 hollow tubes exhibit superior electrochemical performance in terms of current density and cycling stability, with 75 mA cm(-2) and 90 % retention rate after 1000 cycles, respectively. The high electrochemical performances are mainly due to the morphological structure of CuCo2O4 hollow tubes, which possess high surface area and porosity, resulting to a faster electron-ion transfer, enhanced reactivity and stability. Given that the synthesis of CuCo2O4 hollow tubes involve a facile and cost-effective technique, the present approach, thus, opens a new era to novel materials for large-scale processes in different electrochemical applications.
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