Polyphosphazene-derived carbon modified nanowires for high-performance electrochemical energy storage

被引：0

作者：

Zhang, Xiaoyan ^{[1
]}

Wang, Hongmei ^{[1
]}

Hong, Caihui ^{[1
]}

Song, Huiling ^{[1
]}

Han, Tongwei ^{[2
]}

Chu, Xinyan ^{[1
]}

Kambonde, Jerricia A. N. N. ^{[1
]}

机构：

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

[2] Jiangsu Univ, Fac Civil Engn & Mech, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

NANOTECHNOLOGY | 2023年 / 34卷 / 47期

基金：

中国国家自然科学基金;

关键词：

polyphosphazenes; electrochemical; one-dimensional nanowires; carbon; supercapacitor; IN-SITU GROWTH; POROUS CARBON; ELECTRODE MATERIAL; MORPHOLOGY; NANOSHEETS; REPLICAS; MNO2;

D O I：

10.1088/1361-6528/acf29f

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Two one-dimensional nanowires, Fe3O4 and MnO2 nanowires, were modified with polyphosphazene-derived carbon (PZSC) using in situ polymerization and high-temperature calcination methods. PZSC coated with MnO2 nanowire (MnO2/PZSCNW) was designed as the positive electrode, while PZSC coated with Fe3O4 nanowire (Fe3O4/PZSCNW) was designed as the negative electrode. Both MnO2/PZSCNW (+) and Fe3O4/PZSCNW (-) exhibit much larger specific capacities than the corresponding MnO2 and Fe3O4 nanowires, reaching 75.5 mAh g-1 and 75.9 mAh g-1, respectively. The maximum specific capacity, power and energy density of MnO2/PZSCNW (+)//Fe3O4/PZSCNW (-) in alkaline electrolyte are up to 63.2 mAh g-1, 429.6 W kg-1 and 53.7 Wh kg-1, respectively. After 10 000 cycles, the cell maintains 100% capacity. The experimental results indicate that the polyphosphazene-derived carbon coating can significantly improve the electrochemical performance, providing a feasible solution for constructing high-performance supercapacitors.

引用

页数：13

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