Constructing hierarchical porous carbon via tin punching for efficient electrochemical energy storage

doi:10.1016/j.carbon.2018.04.012

	Constructing hierarchical porous carbon via tin punching for efficient electrochemical energy storage
	Wang, Peng 1,2; Xu, Jijian 1; Xu, Feng 1; Zhao, Wei 1; Sun, Peng 1; Zhang, Zhichao 3; Qian, Meng 1; Huang, Fuqiang 1,4,5
刊名	CARBON
	2018
卷号	134 页码:391
ISSN号	0008-6223
DOI	10.1016/j.carbon.2018.04.012
英文摘要	To achieve large-scale preparation of high-performance carbon materials for electrochemical energy storage with a simple and cost-effective method remains a challenge. Here, we report a novel approach to synthesize hierarchical porous carbon with a low melting point metal tin (Sn) as pore forming agent. An aqueous processed tin chloride-polyethylene glycol (SnCl2-PEG) gel is used as precursor to form Sn/Carbon (Sn/C) composites with homogeneously distributed ultrafine Sn particles (< 2 nm) by pyrolysis. After etching Sn nanoparticles, hierarchical porous carbon with high specific surface area (SSA: 846m(2) g(-1)) and abundant pore structure (coexistence of mesopore and micropore) was obtained. The SSA, pore size distribution and pore volume were successfully tuned by controlling the size of the Sn nanoparticle. The capacitive performance of the as-prepared hierarchical porous carbon was evaluated in 1M H2SO4, which exhibits excellent specific capacitance of 240 F g(-1). In order to further increase the electrochemical performance, N-doped porous carbon was fabricated by thermal nitridation in ammonia, which shows favorable features for electrochemical energy storage such as high specific surface area (1175m(2) g(-1)), uniform micropore volume (0.46 cm(3) g(-1)) and rich nitrogen-doping (4.45 wt%). This N-doped sample exhibits outstanding specific capacitances of 360 F g(-1) and excellent cycling stability in aqueous electrolytes. The above achievements indicate that combining low melting point metal as pore forming agent with a sol-gel protocol can be a unique and reliable method for preparation of high performance supercapacitor electrode materials. (C) 2018 Elsevier Ltd. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000433244900042
资助机构	This work is financially supported by National Key R&D Program of China (Grant No. 2016YFB0901600), National Science Foundation of China Grant No. 61376056, 51402336 and 51672295, Science and Technology Commission of Shanghai Grant No. 16ZR1440500, 16JC1401700 and 16QA1404200, and Youth Innovation Promotion Association CAS. ; This work is financially supported by National Key R&D Program of China (Grant No. 2016YFB0901600), National Science Foundation of China Grant No. 61376056, 51402336 and 51672295, Science and Technology Commission of Shanghai Grant No. 16ZR1440500, 16JC1401700 and 16QA1404200, and Youth Innovation Promotion Association CAS.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24788]
专题	中国科学院上海硅酸盐研究所
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, PR, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Penn, Dept Mat Sci & Engn, 3231 Walnut St, Philadelphia, PA 19104 USA 5.Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 6.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Wang, Peng,Xu, Jijian,Xu, Feng,et al. Constructing hierarchical porous carbon via tin punching for efficient electrochemical energy storage[J]. CARBON,2018,134:391, 397.
APA	Wang, Peng.,Xu, Jijian.,Xu, Feng.,Zhao, Wei.,Sun, Peng.,...&Huang, Fuqiang.(2018).Constructing hierarchical porous carbon via tin punching for efficient electrochemical energy storage.CARBON,134,391.
MLA	Wang, Peng,et al."Constructing hierarchical porous carbon via tin punching for efficient electrochemical energy storage".CARBON 134(2018):391.