MnCo2O4 nanoneedles self-organized microstructures for supercapacitors

被引：59

作者：

Anjana, P. M. ^{[1
]}

Kumar, S. R. Sarath ^{[2
]}

Rakhi, R. B. ^{[1
,3
]}

机构：

[1] Univ Kerala, Dept Phys, Thiruvananthapuram 695581, Kerala, India

[2] Univ Kerala, Dept Nanosci & Nanotechnol, Thiruvananthapuram 695581, Kerala, India

[3] CSIR Natl Inst Interdisciplinary Sci & Technol, Mat Sci & Technol Div, Thiruvananthapuram 695019, Kerala, India

来源：

MATERIALS TODAY COMMUNICATIONS | 2021年 / 28卷

关键词：

MnCo2O4; nanoneedles; Specific capacitance; Specific power; Specific energy; Cyclic stability; ELECTRODE MATERIAL; FACILE SYNTHESIS; METAL-OXIDES; NICKEL FOAM; PERFORMANCE; HYBRID; NANOSTRUCTURE; STORAGE; ANODE;

D O I：

10.1016/j.mtcomm.2021.102720

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MnCo2O4 nanoneedles self-organized into urchin-like morphology have been directly grown over conducting nickel foam (NF) substrates by hydrothermal method for supercapacitor application. Aqueous symmetric supercapacitor fabricated with the binder-free MnCo2O4 electrodes exhibits a maximum specific capacitance of 420 F g(-1) at 5 mV s(-1) and delivers a specific energy of 39 Wh kg(-1), at 1 kW kg(-1). The electrode also offers an outstanding cyclic stability of 99% at 5 A g(-1). The excellent performance of the MnCo2O4 nanoneedle based supercapacitor is attributed to the enhanced electro active surface area of the fabricated electrode.

引用

页数：9

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