Microwave-assistance boosted voltage window in oxygen-deficient MnCo<sub>2</sub>O<sub>4.5</sub> for flexible asymmetric supercapacitors

doi:10.1016/j.vacuum.2024.113218

IMR OpenIR

	Microwave-assistance boosted voltage window in oxygen-deficient MnCo₂O_4.5 for flexible asymmetric supercapacitors
	Sun, Yin 1,2; Sheng, Yuxuan 1; Jiang, Wenhao 1; Sun, Chengqi 1,2; Zhao, Xu 1,2; Deng, Banglin 1,2; Zhang, Kun 1,2; Gao, Zhaoqing 3; Zhang, Shoujun 1,2; Wang, Xinyu 4
通讯作者	Zhang, Shoujun(zhangshoujun@gdou.edu.cn) ; Wang, Xinyu(wangxinyu@dlmu.edu.cn)
	2024-07-01
发表期刊	VACUUM
ISSN	0042-207X
卷号	225 页码:8
摘要	Binder-free oxygen-vacancy-rich MnCo2O4.5 highly crystalline porous nanosheets directly grown on carbon cloth were successfully prepared via a time-saving microwave-assisted hydrothermal route. With the assistance of microwave, the ultrathin porous nanosheets structure, accompanied by rich oxygen vacancies in MnCo2O4.5, presents abundant interspace and pores with good conductivity, resulting in a high specific capacity (522.7 C g-1 at 1 A g-1) and satisfactory long-term stability (87.6 % capacity maintenance after 5000 cycles at 10 A g-1). More importantly, the stable potential window of the obtained MnCo2O4.5 electrode is extended to 1.05 V (0-1.05 V vs. Hg/HgO), surpassing the commonly reported potential window of MnCo2O4.5-based electrode materials, which typically falls below 0.75 V. Moreover, the assembled MnCo2O4.5/a-CC//AC all-solid-state asymmetric supercapacitor exhibits a wide stable voltage of 2.05 V, high energy density of 30.8 Wh kg- 1 at 1025 W kg- 1, with excellent long-term endurance (83.7 % capacity preservation after 6000 cycles at 5 A g-1) and mechanical flexibility. These results demonstrate the promising application of microwave-assisted oxygen-deficient MnCo2O4.5 in flexible wearable devices.
关键词	Oxygen -vacancy Wide voltage window High capacity All -solid-state asymmetric supercapacitor
资助者	Scientific Research Start-upFoundation of Guangdong Ocean University ; Guangdong Province Natural Resources Project
DOI	10.1016/j.vacuum.2024.113218
收录类别	SCI
语种	英语
资助项目	Scientific Research Start-upFoundation of Guangdong Ocean University[060302132314] ; Scientific Research Start-upFoundation of Guangdong Ocean University[060302132103] ; Guangdong Province Natural Resources Project[2022-32] ; Guangdong Province Natural Resources Project[2023-51]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:001230744200001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186424
专题	中国科学院金属研究所
通讯作者	Zhang, Shoujun; Wang, Xinyu
作者单位	1.Guangdong Ocean Univ, Naval Architecture & Shipping Coll, Zhanjiang 524088, Peoples R China 2.Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Dalian Maritime Univ, Coll Transportat Engn, Dalian 116026, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yin,Sheng, Yuxuan,Jiang, Wenhao,et al. Microwave-assistance boosted voltage window in oxygen-deficient MnCo₂O_4.5 for flexible asymmetric supercapacitors[J]. VACUUM,2024,225:8.
APA	Sun, Yin.,Sheng, Yuxuan.,Jiang, Wenhao.,Sun, Chengqi.,Zhao, Xu.,...&Wang, Xinyu.(2024).Microwave-assistance boosted voltage window in oxygen-deficient MnCo₂O_4.5 for flexible asymmetric supercapacitors.VACUUM,225,8.
MLA	Sun, Yin,et al."Microwave-assistance boosted voltage window in oxygen-deficient MnCo₂O_4.5 for flexible asymmetric supercapacitors".VACUUM 225(2024):8.