| N-functionalization and defect engineering in ZnCo2O4 nanosheets boosted the performance of Zn-ion hybrid supercapacitor | |
| Zhang, Xiaofeng1; Javed, Muhammad Sufyan1; Shah, Syed Shoaib Ahmad2; Ahmed, Fahim3; Hussain, Iftikhar4; Alzahrani, Fatimah M.5; Alsaiari, Norah S.5; Eldin, Sayed M.6; Ansari, Mohd Zahid7; Han, Weihua1 | |
| 2023-09-01 | |
| Online publication date | 2023-06 |
| Source Publication | ELECTROCHIMICA ACTA Impact Factor & Quartile |
| ISSN | 0013-4686 |
| Volume | 461 |
| page numbers | 10 |
| Abstract | Transition-metal oxides are a class of promising pseudocapacitive materials for high energy density supercapacitors, while their low intrinsic conductivity and remarkable volume expansion deteriorate the electrochemical properties. Herein, we develop a binder-free mesoporous architecture supported on a carbon cloth (CC) substrate based on the nitrogen (N)-doped and oxygen vacancy (Ov)-rich zinc cobalt oxide nanosheets (denoted by N-Ov-ZCO@CC). Because of the instructive synergy of doping, defect, and surface engineering achieved by N-functionalization, the N-Ov-ZCO@CC exhibits significantly enhanced electrochemical properties. The N-Ov-ZCO@CC single electrode exhibited a high capacitance of 2166.4 F/g at 1 A/g with superb rate-capability (91.2% at 20 A/g) and superior cycling stability of 98.99% up to 5,000 cycles. In addition, a zinc-ion hybrid supercapacitor (ZHSC) device, assembled with the N-Ov-ZCO@CC as the cathode and Zn-foil as the anode, shows a high energy density of 95.35 Wh/kg at the power density of 10,008 W/kg, superior to most state-of-the-art ZHSCs. This work provides an effective strategy for constructing multifunctional electrochemical energy materials for ZHSCs. © 2023 Elsevier Ltd |
| Keyword | Doping (additives) Electrochemical properties Electrodes Hybrid materials Ions Nanosheets Oxygen Oxygen vacancies Supercapacitor Transition metal oxides Transition metals Zinc compounds Carbon cloths Defect engineering Higher energy density Hybrid supercapacitors N-defects N-doped N-functionalization Pseudocapacitive Zinc ions Zinc-ion supercapacitor |
| Publisher | Elsevier Ltd |
| DOI | 10.1016/j.electacta.2023.142654 |
| Indexed By | EI ; SCIE |
| Language | 英语 |
| WOS Research Area | Electrochemistry |
| WOS Subject | Electrochemistry |
| WOS ID | WOS:001013552800001 |
| EI Accession Number | 20232314196982 |
| EI Keywords | Cobalt compounds |
| EI Classification Number | 531 Metallurgy and Metallography ; 704.1 Electric Components ; 714 Electronic Components and Tubes ; 761 Nanotechnology ; 801.4.1 Electrochemistry ; 804 Chemical Products Generally ; 933 Solid State Physics ; 933.1 Crystalline Solids |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/529155 |
| Collection | 兰州大学 |
| Corresponding Author | Javed, Muhammad Sufyan; Ansari, Mohd Zahid; Han, Weihua |
| Affiliation | 1.School of Physical Science and Technology, Lanzhou University, Lanzhou; 730000, China; 2.Department of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad; 24090, Pakistan; 3.Department of Physics, Division of Science & Technology, University of Education, Lahore; 54770, Pakistan; 4.Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong; 5.Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh; 11671, Saudi Arabia; 6.Faculty of Engineering and Technology, Future University in Egypt, New Cairo; 11835, Egypt; 7.School of Materials Science and Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongbuk, Gyeongsan; 38541, Korea, Republic of |
| First Author Affilication | Lanzhou University |
| Corresponding Author Affilication | Lanzhou University |
| Recommended Citation GB/T 7714 | Zhang, Xiaofeng,Javed, Muhammad Sufyan,Shah, Syed Shoaib Ahmad,et al. N-functionalization and defect engineering in ZnCo2O4 nanosheets boosted the performance of Zn-ion hybrid supercapacitor[J]. ELECTROCHIMICA ACTA,2023,461. |
| APA | Zhang, Xiaofeng.,Javed, Muhammad Sufyan.,Shah, Syed Shoaib Ahmad.,Ahmed, Fahim.,Hussain, Iftikhar.,...&Han, Weihua.(2023).N-functionalization and defect engineering in ZnCo2O4 nanosheets boosted the performance of Zn-ion hybrid supercapacitor.ELECTROCHIMICA ACTA,461. |
| MLA | Zhang, Xiaofeng,et al."N-functionalization and defect engineering in ZnCo2O4 nanosheets boosted the performance of Zn-ion hybrid supercapacitor".ELECTROCHIMICA ACTA 461(2023). |
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