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Fabrication of Zn-Cu-Ni Ternary Oxides in Nanoarrays for Photo-Enhanced Pseudocapacitive Charge Storage.
Xu, Ruitong; Pan, Jun; Wu, Bo; Li, Yangguang; Wang, Hong-En; Zhu, Ting.
Afiliação
  • Xu R; School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China.
  • Pan J; School of Materials Science & Engineering, Central South University, Changsha 410083, China.
  • Wu B; School of Materials Science & Engineering, Central South University, Changsha 410083, China.
  • Li Y; School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China.
  • Wang HE; School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China.
  • Zhu T; Yunnan Key Laboratory of Optoelectronic Information Technology, School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China.
Nanomaterials (Basel) ; 12(14)2022 Jul 18.
Article em En | MEDLINE | ID: mdl-35889682
ABSTRACT
To meet the increasing demands of energy consumption, sustainable energy sources such as solar energy should be better employed to promote electrochemical energy storage. Herein, we fabricated a bifunctional photoelectrode composed of copper foam (CF)-supported zinc-nickel-copper ternary oxides in nanoarrays (CF@ZnCuNiOx NAs) to promote photo-enhanced pseudocapacitive charge storage. The as-fabricated CF@ZnCuNiOx NAs have shown both photosensitive and pseudocapacitive characteristics, demonstrating a synergistic effect on efficient solar energy harvest and conversion. As a result, a high areal specific capacitance of 2741 mF cm-2 (namely 418 µAh cm-2) under light illumination can be calculated at 5 mA cm-2, which delivered photo-enhancement of 38.3% compared to that obtained without light. In addition, the photoelectric and photothermal effects of the light energy on pseudocapacitive charge storage have been preliminarily studied and compared. This work may provide some evidence on the different mechanisms of photoelectric/thermal conversion for developing solar-driven energy storage devices.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China