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| Flower-like MnO2 on layered carbon derived from sisal hemp for asymmetric supercapacitor with enhanced energy density | |
| Tan, Yanli1; Yang, Chunxiao2; Qian, Weiwei3; Teng, Chao4 | |
| 2020-06-15 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 826Pages:9 |
| Abstract | MnO2 has been considered as a very promising positive electrode candidate for high energy density asymmetric supercapacitors (ASCs) because of high theoretical capacitance. However, the electro-chemical performance of pure MnO2 for ASCs has still been severely limited by poor electronic conductivity, volume expansion and dissolution problem. Herein, we report flower-like MnO2-carbon composite (MnO2/SHAC) as positive electrode and layered Sisal Hemp Active Carbon (SHAC) as negative electrode for high-energy ASCs. The flower-like MnO2/SHAC positive electrode comprised a number of interconnected thin nano-flakes with a length of about 50-100 nm and a thickness of about 10 nm and exhibited a large specific surface area of 189.6 m(2) g(-1) and good conductivity. The SHAC negative electrode showed multi-layered graphene-like structure and a high BET surface area of 1303.5 m(2) g(-1). Moreover, the assembled MnO2/SHAC//SHAC ASC exhibits a maximum energy density of 46.2 Wh kg(-1) at 0.1 A g(-1) and a maximum power density of 3679.5 W kg(-1) at 6 A g(-1), suggesting that MnO2/SHAC composite has promising potential for practical supercapacitors with enhanced energy. (C) 2020 Elsevier B.V. All rights reserved. |
| Keyword | MnO2 Layered carbon Enhanced energy Asymmetric supercapacitor |
| DOI | 10.1016/j.jallcom.2020.154133 |
| Language | 英语 |
| WOS Keyword | HIGH-PERFORMANCE ; HIGH-POWER ; NANOSHEETS ; GRAPHENE ; COMPOSITES ; ELECTRODES ; MICROSPHERES ; NANOTUBES ; BEHAVIOR ; BATTERY |
| Funding Project | Natural Science Foundation of Shandong[ZR2019PB016] ; Postdoctoral Applied Research Project of Qingdao ; National Natural Science Foundation of China[21808228] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | Natural Science Foundation of Shandong ; Postdoctoral Applied Research Project of Qingdao ; National Natural Science Foundation of China |
| WOS ID | WOS:000519269300028 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/39767 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Tan, Yanli |
| Affiliation | 1.Qingdao Univ, Sch Chem & Chem Engn, Qingdao 266071, Peoples R China 2.CITIC Guaon Mengguli Power Sci & Technol CO LTD, Beijing 102200, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 4.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China |
| Recommended Citation GB/T 7714 | Tan, Yanli,Yang, Chunxiao,Qian, Weiwei,et al. Flower-like MnO2 on layered carbon derived from sisal hemp for asymmetric supercapacitor with enhanced energy density[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,826:9. |
| APA | Tan, Yanli,Yang, Chunxiao,Qian, Weiwei,&Teng, Chao.(2020).Flower-like MnO2 on layered carbon derived from sisal hemp for asymmetric supercapacitor with enhanced energy density.JOURNAL OF ALLOYS AND COMPOUNDS,826,9. |
| MLA | Tan, Yanli,et al."Flower-like MnO2 on layered carbon derived from sisal hemp for asymmetric supercapacitor with enhanced energy density".JOURNAL OF ALLOYS AND COMPOUNDS 826(2020):9. |
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