A novel P-doped Ni0.5Cu0.5Co2O4 sphere with a yolk-shell hollow structure for high-energy-density supercapacitor

被引：10

作者：

Liu, Yu ^{[1
]}

Zheng, Rong ^{[1
]}

Lin, Huachen ^{[1
]}

Zhou, Pengjie ^{[2
]}

Ying, Yulong ^{[3
]}

Li, Longhua ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Peoples R China

[3] Zhejiang Sci Tech Univ, Sch Mat Sci & Engn, Hangzhou 310018, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 348卷

基金：

中国国家自然科学基金;

关键词：

Supercapacitor; Ternary metal oxides; Energy density; Hollow structure; PERFORMANCE;

D O I：

10.1016/j.matlet.2023.134682

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

P-doped multi-metal oxide is an effective method to improve its electrochemical energy storage performance. Herein, a novel P-doped ternary metal oxide (P-Ni0.5Cu0.5Co2O4) with a yolk-shell hollow structure is reasonably prepared and used as electrode material for supercapacitors. The as-prepared electrode has significantly improved conductivity and capacity, with a high specific capacitance of 1570.2F g-1 in a three-electrode system. Furthermore, the as-assembled P-Ni0.5Cu0.5Co2O4//activated carbon supercapacitor possesses an ultra-high energy density of 118.6 W h kg-1 and stable cyclic performance.

引用

页数：4

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