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	Decorating activated carbon: insight to the difference and the storage mechanism of loading NiO and MnO2
	Zhang, Ningshuang1,2; Li, Runrun1,2; Ding, Hao1,2; Dong, Hong1,2; Wang, Peng1,2; Wang, Jie1,2; Zhao, Dongni1,2; Li, Shiyou1,2
刊名	Ionics
	2022-07-01
卷号	28期号:7页码:3571-3581
关键词	Activated carbon Capacitance Diffusion Manganese oxide Morphology Nickel oxide Porous materials Supercapacitor Voltammetry Carbon material Composites material Density-functional-theory Differential pulse voltammetry Energy density Herb residues Hydrothermal reaction Lower energies Metal-oxide Storage mechanism
ISSN号	0947-7047
DOI	10.1007/s11581-022-04593-5
英文摘要	The application of activated carbon is greatly limited by its low energy density. Here, the angelica herb residue–based activated carbon (AHRAC) materials modified by loading NiO and MnO2 were prepared via a hydrothermal reaction, respectively. The results of structure measurements and electrochemical tests reveal that NiO is more beneficial for improving the specific capacitance (about 678.2 F g−1) and energy density (about 30 Wh kg−1) of AHRAC owing to its unique flower-like morphology and abundant porosity. In addition, combining the density functional theory calculation (DFT), differential pulse voltammetry (DPV), and diffusion coefficient calculation, the difference between AHRAC@NiO and AHRAC@MnO2 was analyzed, which may be ascribed to the larger pseudo-capacitance contribution, bigger diffusion coefficient, and higher adsorption behavior for OH−. In this work, not only a porous carbon with a high specific surface area was prepared, but also the biomass waste was reused. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
语种	英语
出版者	Springer Science and Business Media Deutschland GmbH
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159070]
专题	石油化工学院
作者单位	1.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Gansu Key Laboratory of Low-Carbon Energy and Chemical Engineering, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Ningshuang,Li, Runrun,Ding, Hao,et al. Decorating activated carbon: insight to the difference and the storage mechanism of loading NiO and MnO2[J]. Ionics,2022,28(7):3571-3581.
APA	Zhang, Ningshuang.,Li, Runrun.,Ding, Hao.,Dong, Hong.,Wang, Peng.,...&Li, Shiyou.(2022).Decorating activated carbon: insight to the difference and the storage mechanism of loading NiO and MnO2.Ionics,28(7),3571-3581.
MLA	Zhang, Ningshuang,et al."Decorating activated carbon: insight to the difference and the storage mechanism of loading NiO and MnO2".Ionics 28.7(2022):3571-3581.

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