Hierarchical mesoporous Cox Ni1-xO as advanced electrode material for hybrid supercapacitors

被引：25
作者：
Purushothaman, Kamatchi Kamaraj [1 ]
Babu, Inbamani Manohara [2 ]
Saravanakumar, Balakrishanan [3 ]
机构：
[1] SSM Inst Engn & Technol, Dept Phys, Res Ctr, Dindigul 624002, Tamil Nadu, India
[2] Gandhigram Rural Univ, Dept Phys, Gandhigram 624302, Tamil Nadu, India
[3] Mahalingam Coll Engn & Technol, Fac Phys, Pollachi, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 47期
关键词：
Nanosheets; Porous networks; Supercapacitor; Nickel oxide; Hydrothermal; HIGH-PERFORMANCE SUPERCAPACITORS; ELECTROCHEMICAL CAPACITORS; HYDROTHERMAL SYNTHESIS; POSITIVE ELECTRODE; NIO; FILM; PSEUDOCAPACITANCE; NANOSTRUCTURES; POLYMERIZATION; BETA-NI(OH)(2);
D O I：
10.1016/j.ijhydene.2017.09.115
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：
The nanosheets interconnected highly porous CoxNi1-xO (0.025 <= x <= 0.1) was successfully synthesized via hydrothermal route. The effect of Co on the structural, morphological and electrochemical properties of NiO has been examined for supercapacitor (SC) application. Scanning electron microscope (SEM) images display the formation of porous networks. Scanning transmission electron microscope (STEM) images confirm the arrangement of nanosheets leads to flower like porous networks. Co0.05Ni0.95O exhibits the maximum specific capacity of 582 C g(-1) (161.67 mA h g(-1)) at a specific current of 1 A g(-1). Galvanostatic charge discharge (GCD) analysis reveals the maximum energy density of 39.54 W h kg(-1) with the power density of 17.11 kW kg(-1), and observed cyclic stability is 96% even after 1500 continuous charge/discharge cycles for Co0.05Ni0.95O. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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页码：28445 / 28452
页数：8
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