Boosting the performance of cobalt molybdate nanorods by introducing nanoflake-like cobalt boride to form a heterostructure for aqueous hybrid supercapacitors
Hou, Jing-Feng1; Gao, Jian-Fei1; Kong, Ling-Bin1,2
2020-04
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume565Pages:388-399
AbstractBinary transition metal oxides have received extensive attention because of their multiple oxidation states. However, due to the inherent vices of poor electronic/ionic conductivities, their practical performance as supercapacitor material is limited. Herein, a cobalt molybdate/cobalt boride (CoMoO4/Co-B) composite is constructed with cobalt boride nanoflake-like as a conductive additive in CoMoO4 nanorods using a facile water bath deposition process and liquid-phase reduction method. The effects of CoMoO4/Co-B mass ratios on its electrochemical performance are investigated. Remarkably, the CoMoO4/Co-B composite obtained at a mass ratio of 2:1 shows highly enhanced electrochemical performance relative to those obtained at other ratios and exhibits an optimum specific capacity of 436 Fg(-1) at 0.5 A g(-1). This kind of composite could also display great rate capacity (294 F g(-1) at 10 A g(-1)) and outstanding long cycle performance (90.5% capacitance retention over 10 000 cycles at 5 A g(-1)). Also, the asymmetric supercapacitor device is prepared by using CoMoO4/Co-B composite as the anode with the active carbon as the cathode. Such a device demonstrates an outstanding energy density of 23.18 Wh kg(-1) and superior long-term stability with 100% initial specific capacity retained after 10,000 cycles. The superior electrochemical properties show that the CoMoO4/Co-B electrode material has tremendous potential in energy storage equipment applications. (C) 2020 Elsevier Inc. All rights reserved.
KeywordCobalt molybdate Energy storage Supercapacitor Electrochemical performance Heterostructure
DOI10.1016/j.jcis.2020.01.040
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51971104][51762031]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000518496500041
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64305
Collection省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
Corresponding AuthorKong, Ling-Bin
Affiliation1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
First Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials;  Coll Mat Sci & Engn
First Signature AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Recommended Citation
GB/T 7714
Hou, Jing-Feng,Gao, Jian-Fei,Kong, Ling-Bin. Boosting the performance of cobalt molybdate nanorods by introducing nanoflake-like cobalt boride to form a heterostructure for aqueous hybrid supercapacitors[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2020,565:388-399.
APA Hou, Jing-Feng,Gao, Jian-Fei,&Kong, Ling-Bin.(2020).Boosting the performance of cobalt molybdate nanorods by introducing nanoflake-like cobalt boride to form a heterostructure for aqueous hybrid supercapacitors.JOURNAL OF COLLOID AND INTERFACE SCIENCE,565,388-399.
MLA Hou, Jing-Feng,et al."Boosting the performance of cobalt molybdate nanorods by introducing nanoflake-like cobalt boride to form a heterostructure for aqueous hybrid supercapacitors".JOURNAL OF COLLOID AND INTERFACE SCIENCE 565(2020):388-399.
Files in This Item:
There are no files associated with this item.
Related Services
Usage statistics
Google Scholar
Similar articles in Google Scholar
[Hou, Jing-Feng]'s Articles
[Gao, Jian-Fei]'s Articles
[Kong, Ling-Bin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hou, Jing-Feng]'s Articles
[Gao, Jian-Fei]'s Articles
[Kong, Ling-Bin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hou, Jing-Feng]'s Articles
[Gao, Jian-Fei]'s Articles
[Kong, Ling-Bin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.