Controllable shell thickness of Co/CoO core-shell structure on 3D nickel foam with high performance supercapacitors

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作者信息关键词期刊信息基础信息归属信息摘要

成果类型：

期刊论文

作者：

Wang, Ling;Wang, Hai;Qing, Chen;Qu, Gan;Ma, Wenhao;...

通讯作者：

Tang, Yiwen（唐一文）

作者机构：

[Tang, Yiwen; Ma, Wenhao; Wang, Hai; Qing, Chen; Wang, Ling] Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Hubei, Peoples R China.

[Qu, Gan] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China.

通讯机构：

[Tang, Yiwen] C

Cent China Normal Univ, Inst Nanosci & Technol, Wuhan 430079, Hubei, Peoples R China.

语种：

英文

关键词：

Annealing;Capacitance;Cobalt compounds;Cobalt metallography;Display devices;Electrodes;High resolution transmission electron microscopy;Nanostructures;Nickel;Scanning electron microscopy;Supercapacitor;Application prospect;Asymmetric supercapacitor;Controllable shell thickness;Core shell nano structures;Core shell structure;Electrochemical performance;High energy densities;Thickness of shell;Shells (structures)

期刊：

Journal of Alloys and Compounds

ISSN：

0925-8388

年：

2017

卷：

726

页码：

139-147

DOI：

10.1016/j.jallcom.2017.07.316

基金类别：

The authors acknowledge the financial support of the Natural Science Foundation of China (Grant No. 51572102) and Self-determined Research Funds of CCNU from the Colleges' basic Research and Operation of MOE (CCNU15GF006).

机构署名：

本校为第一且通讯机构

院系归属：

物理科学与技术学院

摘要：

Co/CoO core-shell nanostructure on the 3D nickel foam has been synthesized by a hydrothermal method following by annealing the precursor in hydrogen atmosphere and air respectively. Different shell thicknesses of the CoO are designed and controlled by annealing the nanostructured Co in the air at 50 °C, 100 °C, 150 °C, 200 °C for 2 h, which were characterized by X-ray diffraction (XRD), Raman spectroscopy, Scanning electron microscope (SEM), transmission electron microscopy (TEM), X–ray photoelectronspectroscopy (XPS). As a result, Co/CoO core-shell nanostructure annealed...

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Controllable shell thickness of Co/CoO core-shell structure on 3D nickel foam with high performance supercapacitors

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