Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

doi:10.1021/acsaem.2c00699

	Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors
	Zhang, Li-Chao 1; He, Zheng-Hua 1; Hou, Jing-Feng 1; Kong, Ling-Bin 1,2
刊名	ACS APPLIED ENERGY MATERIALS
	2022-06-27
卷号	5 期号:6 页码:7081-7090
关键词	subnanoporous carbon pore structure control high micropore ratio electrochemical capacitor interpenetrating polymer
ISSN号	2574-0962
DOI	10.1021/acsaem.2c00699
英文摘要	The pore structure of carbon-based materials is one of the determinants of supercapacitor performance. In this paper, a series of subnanoporous carbon materials are prepared by one-step carbonization of interpenetrating polymers, which could not only accurately control the pore size at 0.6 nm but also change the degree of polymerization of dimethylamine formaldehyde resin. The pore structure parameters of the proportion of subnanometer micropores are regulated through carbonization. The pores of the prepared porous carbon are extracted by pyrolysis of sodium polyacrylate, synergistic pore-forming effect of generated gaseous species, and sodium salt etching. Among them, C-IPN3 possesses the highest total specific surface area (575 m(2) g(-1)). The S-BET of subnanometer pores is as high as 93.4% with good specific capacitance of 239.1 F g(-1) at 0.5 A g(-1). In alkaline electrolyte, it shows 82% of capacity retention of its initial capacitance with 20-fold expansion of current density indicating excellent rate capability. In addition, speaking of a symmetric capacitor device, the results show an energy density of 7.57 W h Kg(-1) at a power density of 62.5 W Kg(-1). This simple and low-cost device, which achieves effective regulation of the pore structure, could also be used as the advanced electrode for supercapacitors.
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000820441500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158832]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Li-Chao,He, Zheng-Hua,Hou, Jing-Feng,et al. Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors[J]. ACS APPLIED ENERGY MATERIALS,2022,5(6):7081-7090.
APA	Zhang, Li-Chao,He, Zheng-Hua,Hou, Jing-Feng,&Kong, Ling-Bin.(2022).Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors.ACS APPLIED ENERGY MATERIALS,5(6),7081-7090.
MLA	Zhang, Li-Chao,et al."Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors".ACS APPLIED ENERGY MATERIALS 5.6(2022):7081-7090.