兰州大学机构库
Chromium induced nickel oxides leads to extraordinary enhancement in the performance of aqueous hybrid supercapacitors
Zhang, Xiaofeng1; Suneetha, Maduru2; Usman, Muhammad3; Ahmad, Tauqeer4; Ali, Salamat5; Javed, Muhammad Sufyan1; Khan, Shaukat6; Hassan, Ahmed M.7; Elkhatib, Samah E.8; Ouladsmane, Mohamed8; Han, Sung Soo2,9; Han, Weihua1
2023-11-01
Online publication date2023-09
Source PublicationELECTROCHIMICA ACTA   Impact Factor & Quartile
ISSN0013-4686 ; 1873-3859
Volume467
page numbers11
AbstractAqueous hybrid supercapacitors (AHSCs) have great potential in portable devices and other modern electronic products due to their high-power density, long life span, and environmentally friendly. However, compared with traditional Li-ion batteries, they are still not mature enough to meet market requirements due to their low energy density. In this study, we proposed to use nanostructured bi-metallic nickel-chromium oxide as an AHSC cathode. By using the synergetic effect arising from the two metal cations, Ni and Cr-ions, the energy storage performance of AHSCs was expected to be significantly improved. We synthesized the nanostructured bi-metallic nickelchromium oxide (NiCrO3) with a facile hydrothermal method. The achieved NiCrO3 (NCO) has a sheet-like structure and a hexagonal shape in the nanoscale. The results show that NCO loading on carbon cloth (CC) as the working electrode (NCO@CC) has a high specific capacitance of 2,862 F/g at 1 A/g (corresponding capacity of 1,431 C/g) and a favorable cycling stability of 98.3% after 10,000 cycles at 10 A/g. The specific capacitance is about 2.3 and 5.9 times of pristine Cr2O3 and NiO in the same situation. The storage mechanism of charge was investigated by ex-situ XRD, XPS, and Raman spectroscopy, which reveals that the total stored charge is based on the combination of faradic and pseudocapacitive effects. Furthermore, AHSC was fabricated using the NCO@CC as cathode, activated carbon as anode, which showed promising performance (102.7 F/g at 2 A/g) with excellent rate-capability (58.5% at 20 A/g), long life span (48% after 50,000 cycles). Density function theory calculation reveals that NCO possesses higher conductivity than NiO and Cr2O3, and decreases the electron transport energy, which contributes to the improves the reactions kinetics.
KeywordAqueous hybrid supercapacitors Bi-metallic oxide NiCrO3 DFT
PublisherPERGAMON-ELSEVIER SCIENCE LTD
DOI10.1016/j.electacta.2023.143093
Indexed BySCIE
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:001077080300001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568271
Collection兰州大学
Corresponding AuthorJaved, Muhammad Sufyan; Han, Sung Soo; Han, Weihua
Affiliation
1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China;
2.Yeungnam Univ, Sch Chem Engn, 280 Daehak Ro, Gyongsan 38541, Gyeongbuk, South Korea;
3.Kaunas Univ Technol, Phys Dept, 50 Studentu St, LT-51368 Kaunas, Lithuania;
4.Univ Porto, Fac Engn, Dept Phys Engn, Rua Dr Roberto Frias, P-4200465 Porto, Portugal;
5.Lanzhou Univ, Sch Mat & Energy, Lanzhou 730000, Peoples R China;
6.Dhofar Univ, Coll Engn, Dept Chem Engn, Salalah 211, Oman;
7.Future Univ Egypt, Fac Engn & Technol, New Cairo 11835, Egypt;
8.King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia;
9.Yeungnam Univ, Res Inst Cell Culture, 280 Daehak Ro, Gyongsan 38541, Gyeongbuk, South Korea
Recommended Citation
GB/T 7714
Zhang, Xiaofeng,Suneetha, Maduru,Usman, Muhammad,et al. Chromium induced nickel oxides leads to extraordinary enhancement in the performance of aqueous hybrid supercapacitors[J]. ELECTROCHIMICA ACTA,2023,467.
APA Zhang, Xiaofeng.,Suneetha, Maduru.,Usman, Muhammad.,Ahmad, Tauqeer.,Ali, Salamat.,...&Han, Weihua.(2023).Chromium induced nickel oxides leads to extraordinary enhancement in the performance of aqueous hybrid supercapacitors.ELECTROCHIMICA ACTA,467.
MLA Zhang, Xiaofeng,et al."Chromium induced nickel oxides leads to extraordinary enhancement in the performance of aqueous hybrid supercapacitors".ELECTROCHIMICA ACTA 467(2023).
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