3D hierarchical porous carbon derived from direct carbonization and in-situ chemical activation of potatoes toward high-performance supercapacitors

doi:10.1088/2053-1591/ab4d36

	3D hierarchical porous carbon derived from direct carbonization and in-situ chemical activation of potatoes toward high-performance supercapacitors
	Lu, Chun 1; Qian, Xue-Zhi 1; Zhu, Hao-Yan 1; Hu, Yu-Xia 3; Zhang, Yu-Shan 1; Zhang, Bin-Mei 1; Kong, Ling-Bin1,2 ; Liu, Mao-Cheng1,2
	2019-11
发表期刊	Materials Research Express
ISSN	2053-1591
卷号	6 期号:11
摘要	The construction of hierarchical porous carbon with low cost and superior performance based on biomass materials plays a significance role in application of supercapacitors. A three-dimensional Hierarchical Porous Carbon (3D HPC) was synthesized by one-step carbonization process with in situ chemical activation using potato as precursor. The 3D HPC exhibits high specific surface area and good hierarchical porous structure which can serve an excellent electrochemical performance. It can reach a high specific capacitance of 236 F g-1 at 0.5 A g-1 and a long cycle life (capacitance retention of 96% after 10000 cycles) in 2 M KOH. The 3D HPC//3D HPC symmetrical supercapacitor achieves a high energy density of 6.8 Wh kg-1 at the power density of 310 W kg-1. Meanwhile, the [BMIm]BF4/acetonitrile (AN) ionic liquid was applied to promote the energy density to supercapacitors, the higher energy density (45.06 Wh kg-1) is shown compared with that in aqueous electrolyte and most reported carbon materials in ionic liquid. The outstanding performance is attributed to the porous structure with different pore size which not only provide large surface area but also facilitate the electrolyte ions transport rapidly. This study offers a convenient and effective approach to deriving low cost and high performance carbon material for supercapacitors. © 2019 IOP Publishing Ltd.
关键词	Capacitance Carbon Carbonization Costs Electrolytes Ionic liquids Pore size Porous materials Potassium hydroxide Supercapacitor Capacitive behavior Carbonization process Electrochemical performance Hierarchical porous carbons Hierarchical porous structures High specific capacitances High specific surface area potatoes
DOI	10.1088/2053-1591/ab4d36
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000504242000001
出版者	IOP Publishing Ltd
EI入藏号	20194707721351
EI主题词	Chemical activation
EI分类号	701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 911 Cost and Value Engineering ; Industrial Economics - 951 Materials Science
来源库	Compendex
分类代码	701.1 Electricity: Basic Concepts and Phenomena - 802.2 Chemical Reactions - 804 Chemical Products Generally - 804.2 Inorganic Compounds - 911 Cost and Value Engineering; Industrial Economics - 951 Materials Science
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114355
专题	材料科学与工程学院
通讯作者	Liu, Mao-Cheng
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 3.Lanzhou City Univ, Sch Bailie Engn & Technol, Lanzhou 730070, Gansu, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院; 省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Lu, Chun,Qian, Xue-Zhi,Zhu, Hao-Yan,et al. 3D hierarchical porous carbon derived from direct carbonization and in-situ chemical activation of potatoes toward high-performance supercapacitors[J]. Materials Research Express,2019,6(11).
APA	Lu, Chun.,Qian, Xue-Zhi.,Zhu, Hao-Yan.,Hu, Yu-Xia.,Zhang, Yu-Shan.,...&Liu, Mao-Cheng.(2019).3D hierarchical porous carbon derived from direct carbonization and in-situ chemical activation of potatoes toward high-performance supercapacitors.Materials Research Express,6(11).
MLA	Lu, Chun,et al."3D hierarchical porous carbon derived from direct carbonization and in-situ chemical activation of potatoes toward high-performance supercapacitors".Materials Research Express 6.11(2019).