PPy coated nanoflower like CuCo2O4 based on in situ growth of nanoporous copper for high-performance supercapacitor electrodes

doi:10.1088/1361-6528/ac4660

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	PPy coated nanoflower like CuCo2O4 based on in situ growth of nanoporous copper for high-performance supercapacitor electrodes
	Zhao, Zongchen 1; Zheng, Lili 4; Li, Haoran 1; He, Zeyin 1; Han, Dong 1; Shi, Jing 1; Xu, Bin 2,3; Wang, Huanlei 1
刊名	NANOTECHNOLOGY
	2022-04-09
卷号	33 期号:15 页码:11
关键词	CuCo2O4 PPy nanoporous copper supercapacitor
ISSN号	0957-4484
DOI	10.1088/1361-6528/ac4660
通讯作者	Shi, Jing(shijing@ouc.edu.cn) ; Xu, Bin(bxu@imr.ac.cn)
英文摘要	General CuCo2O4 electrodes suffer a very low reversible capacity and poor cycling stability because of easily fading phenomena and volume change during cycling. To optimize the electrode, a facile method is conducted to fabricate a novel electrode of Cu@CuCo2O4@polypyrrole nanoflowers. Due to larger specific surface area and more electrochemical reactive areas of CuCo2O4@polypyrrole nanoflowers, the pseudocapacitance of the in situ grown CuCo2O4@polypyrrole (912 F g(-1) at 2 A g(-1)) is much higher than the pristine CuCo2O4 (618 F g(-1) at 2 A g(-1)). Remarkably, the CuCo2O4@polypyrrole (cathode) and active carbon (anode) are used to assemble an asymmetric supercapacitor, which exhibits a relatively high energy density of 90 Wh kg(-1) at a power density of 2519 W kg(-1) and 35 Wh kg(-1) at a high-power density of 9109 W kg(-1), and excellent cycling stability (about 90.4% capacitance retention over 10 000 cycles). The prominent performance of CuCo2O4@polypyrrole makes it as a potential electrode for supercapacitor.
资助项目	National Natural Science Foundation of China[52001179] ; Natural Science Foundation of Shandong Province[ZR2020ME019]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000744269700001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173614]
专题	金属研究所_中国科学院金属研究所
通讯作者	Shi, Jing; Xu, Bin
作者单位	1.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shengyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety, Shenyang 11016, Peoples R China 4.Qingdao Univ, Coll Mech & Elect Engn, Natl Engn Res Ctr Intelligent Elect Vehicle Power, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Zongchen,Zheng, Lili,Li, Haoran,et al. PPy coated nanoflower like CuCo2O4 based on in situ growth of nanoporous copper for high-performance supercapacitor electrodes[J]. NANOTECHNOLOGY,2022,33(15):11.
APA	Zhao, Zongchen.,Zheng, Lili.,Li, Haoran.,He, Zeyin.,Han, Dong.,...&Wang, Huanlei.(2022).PPy coated nanoflower like CuCo2O4 based on in situ growth of nanoporous copper for high-performance supercapacitor electrodes.NANOTECHNOLOGY,33(15),11.
MLA	Zhao, Zongchen,et al."PPy coated nanoflower like CuCo2O4 based on in situ growth of nanoporous copper for high-performance supercapacitor electrodes".NANOTECHNOLOGY 33.15(2022):11.