Solvothermal synthesis of MnCo2O4 microspheres for high-performance electrochemical supercapacitors

被引：41

作者：

Naresh, Bodicherla ^{[1
]}

Kuchi, Charan ^{[2
]}

Rajasekhar, D. ^{[1
]}

Reddy, P. Sreedhara ^{[1
]}

机构：

[1] Sri Venkateswara Univ, Dept Phys, Condensed Matter Phys Lab, Tirupati 517502, Andhra Pradesh, India

[2] Indian Inst Technol, Dept Phys, Tirupati 517506, Andhra Pradesh, India

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2022年 / 640卷

关键词：

Electrochemical; Microspheres; Morphology; Structural; MnCo2O4; HYDROTHERMAL SYNTHESIS; OXIDE NANOSTRUCTURE; ELECTRODE MATERIALS; CUO NANOSTRUCTURES; NANOWIRE ARRAYS; CARBON; MNO2; NANOSHEETS; BATTERY; NANOCOMPOSITE;

D O I：

10.1016/j.colsurfa.2022.128443

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

MnCo2O4 microspheres were synthesized via the solvothermal method by employing ethylene glycol as a solvent and these synthesized materials were characterized by Field Emission Scanning Electron Microscope (FESEM), Energy Dispersive Analysis of X-rays (EDAX), X-ray Diffraction spectroscopy (XRD), X-ray Photoelectron Spectroscopy (XPS). The morphology and structural conformation of MnCo2O4 microspheres were confirmed by FESEM and XRD. The electrochemical performance of MnCo2O4 @ 18 h electrode material was analyzed by cyclic voltammetry, Galvanostatic charge discharge, and electrochemical impedance spectroscopy techniques. Impressively, the MnCo2O4 @ 18 h microspheres achieved remarkable results in pseudocapacitive performance with a high specific capacitance of 439 Fg(-1) at 1 Ag-1 and exhibits excellent cyclic stability of 80.6% capacitance retention after 10,000 cycles at 1 Ag-1.

引用

页数：10

共 72 条

[1] Magnetic Electrodeposition of the Hierarchical Cobalt Oxide Nanostructure from Spent Lithium-Ion Batteries: Its Application as a Supercapacitor Electrode [J].

Aboelazm, Eslam A. A. ;

Ali, Gomaa A. M. ;

Algarni, H. ;

Yin, Huajie ;

Zhong, Yu Lin ;

Chong, Kwok Feng .

JOURNAL OF PHYSICAL CHEMISTRY C, 2018, 122 (23) :12200-12206

[2] One-step electrosynthesis of MnO2/rGO nanocomposite and its enhanced electrochemical performance [J].

Ali, Gomaa A. M. ;

Yusoff, Mashitah M. ;

Algarni, H. ;

Chong, Kwok Feng .

CERAMICS INTERNATIONAL, 2018, 44 (07) :7799-7807

[3] High performance MnO2 nanoflower supercapacitor electrode by electrochemical recycling of spent batteries [J].

Ali, Gomaa A. M. ;

Yusoff, Mashitah M. ;

Shaaban, Essam R. ;

Chong, Kwok Feng .

CERAMICS INTERNATIONAL, 2017, 43 (11) :8440-8448

[4] Green synthesis of ZnO/ZnCo2O4 and its application for electrochemical determination of bisphenol A [J].

Amiri, Mahnaz ;

Mahmoudi-Moghaddam, Hadi .

MICROCHEMICAL JOURNAL, 2021, 160

[5] Carbon Coated Flowery V2O5 Nanostructure as Novel Electrode Material for High Performance Supercapacitors [J].

Balasubramanian, Sethuraman ;

Purushothaman, Kamatchi Kamaraj .

ELECTROCHIMICA ACTA, 2015, 186 :285-291

[6] Novel flower-like MnCo2O4 microstructure self-assembled by ultrathin nanoflakes on the microspheres for high-performance supercapacitors [J].

Che, Hongwei ;

Wang, Yuqiao ;

Mao, Yuanxin .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 680 :586-594

[7] Template-free synthesis of novel flower-like MnCo2O4 hollow microspheres for application in supercapacitors [J].

Che, Hongwei ;

Liu, Aifeng ;

Mu, Jingbo ;

Wu, Chunxia ;

Zhang, Xiaoliang .

CERAMICS INTERNATIONAL, 2016, 42 (02) :2416-2424

[8] High-performance hybrid supercapacitor based on the porous copper cobaltite/cupric oxide nanosheets as a battery-type positive electrode material [J].

Chen, Huiyu ;

Liu, Yafei ;

Sun, Jiale ;

Xu, Chunju .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (55) :28144-28155

[9] Simple preparation of ZnCo2O4 porous quasi-cubes for high performance asymmetric supercapacitors [J].

Chen, Huiyu ;

Du, Xuming ;

Sun, Jiale ;

Mao, Hui ;

Wu, Runze ;

Xu, Chunju .

APPLIED SURFACE SCIENCE, 2020, 515

[10] Solvothermal synthesis of novel pod-like MnCo2O4.5 microstructures as high-performance electrode materials for supercapacitors [J].

Chen, Huiyu ;

Du, Xuming ;

Sun, Jiale ;

Wang, Ya ;

Zhang, Yanfei ;

Xu, Chunju .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (04) :3016-3027

← 1 2 3 4 5 6 7 8 →