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Epitaxially grown copper phosphide (Cu3P) nanosheets nanoarchitecture compared with film morphology for energy applications

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Title
Epitaxially grown copper phosphide (Cu3P) nanosheets nanoarchitecture compared with film morphology for energy applications
Author(s)
Suk Woo Lee; Jaemin Kim; Sang-Gil Woo; Youngjin Park; Jong Chan Yoon; Hyo Ju Park; Na Yeon Kim; Hyeon Suk Shin; Zonghoon Lee
Publication Date
2021-10
Journal
Surfaces and Interfaces, v.26
Publisher
Elsevier B.V.
Abstract
© 2021 Elsevier B.V.Fabrication of 3D nanoarchitecture is one of the effective ways to improve performance of energy applications because it has advantages such as buffer space accommodating volume expansion or high surface area leading to higher efficiency. However, the fabrication of such nanoarchitectures is generally complex involving several steps including patterning, etching and growth of intermediate materials. Herein, we report a facile process to form a nanoarchitecture of copper phosphide (Cu3P) nanosheets directly on copper foil by epitaxially growing Cu3P sheets of controlled thickness on a suitably engineered Cu foil. The growth of Cu3P nanosheets and their epitaxial relationship with the Cu foil were studied by X-ray diffraction (XRD) and transmission electron microscopy (TEM). To show the advantages of nanoarchitecture, we tested both nanoarchitecture and film-like morphology of Cu3P as an anode in lithium-ion battery (LIB) and an electrocatalyst in hydrogen evolution reaction (HER). We found that the nanoarchitecture enabled significant improvements in both capacity and rate capability of the LIB. In the case of HER, however, the higher electrocatalytic efficiency of the nanoarchitectured electrode was maintained only in the initial cycles due to morphology reconstruction of Cu3P during HER. This result provides a new facile route to fabricate nanoarchitecture and shows superior performance of the nanoarchitecture in energy applications.
URI
https://pr.ibs.re.kr/handle/8788114/10272
DOI
10.1016/j.surfin.2021.101369
ISSN
2468-0230
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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