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Macropore- and Micropore-Dominated Carbon Derived from Poly(vinyl alcohol) and Polyvinylpyrrolidone for Supercapacitor and Capacitive Deionization
Tang, Kexin1,2,3; Chang, Junjun1; Cao, Hongbin1,2,3; Su, Chunlei1; Li, Yuping1; Zhang, Zisheng2,4; Zhang, Yi1,2,3
2017-12-01
发表期刊ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
卷号5期号:12页码:11324-11333
摘要

We developed a kind of macropore- and micropore-dominated carbon (HPAC) derived from poly(vinyl alcohol) and polyvinylpyrrolidone for electric double-layer capacitive (EDLC) applications, e.g., supercapacitors and capacitive deionization (CDI). By comparing the EDLC performance of HPAC with those of ordered mesoporous carbon (OMC) and commercial activated carbon (AC), we evaluated the pore size effects. Cyclic voltammetry (CV) was employed for static and flowing CDI processes to identify the disparities between supercapacitors and CDI. HPAC exhibits a specific capacitance of 309 F g(-1) at a specific current of 0.5 A g(-1) (6 M KOH) in a three-electrode half-cell and has a salt removal capacity of 16.3 mg g(-1) (1.2 V, 500 mg L-1 NaCl), which is better than those of AC and OMC. Cycling tests of HPAC in supercapacitors and CDI show excellent stability. The properties of HPAC, fine, hydrophilic, macroporous, and microporous, endow HPAC with the promising possibility of use in supercapacitors and capacitive deionization. The disparities of supercapacitors and CDI include ionic species and concentrations and solution hydromechanics. CV analysis of static and flowing CDI equipped with HPAC electrodes suggests that increasing the salt concentration in CDI is beneficial for the carbon electrode to show high capacitance and to reduce the pumping energy during the CDI process.

关键词Macroporous Microporous Carbon Supercapacitor Capacitive Deionization Desalination Salt Concentration Pumping Energy
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acssuschemeng.7b02307
收录类别SCI
语种英语
关键词[WOS]High-performance Supercapacitors ; Hierarchical Porous Carbon ; Water Desalination ; Energy-storage ; Mesoporous Carbons ; Activated Carbon ; Brackish-water ; Electrodes ; Composite ; Spheres
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Engineering
WOS类目Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
项目资助者National Natural Science Foundation of China (NSFC)(21377130 ; 51425405)
WOS记录号WOS:000417341900021
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23498
专题研究所(批量导入)
通讯作者Li, Yuping
作者单位1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China
2.Tianjin Univ, Natl Engn Res Ctr Distillat Technol, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
3.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
4.Univ Ottawa, Dept Chem & Biol Engn, Ottawa, ON, Canada
推荐引用方式
GB/T 7714
Tang, Kexin,Chang, Junjun,Cao, Hongbin,et al. Macropore- and Micropore-Dominated Carbon Derived from Poly(vinyl alcohol) and Polyvinylpyrrolidone for Supercapacitor and Capacitive Deionization[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(12):11324-11333.
APA Tang, Kexin.,Chang, Junjun.,Cao, Hongbin.,Su, Chunlei.,Li, Yuping.,...&Zhang, Yi.(2017).Macropore- and Micropore-Dominated Carbon Derived from Poly(vinyl alcohol) and Polyvinylpyrrolidone for Supercapacitor and Capacitive Deionization.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(12),11324-11333.
MLA Tang, Kexin,et al."Macropore- and Micropore-Dominated Carbon Derived from Poly(vinyl alcohol) and Polyvinylpyrrolidone for Supercapacitor and Capacitive Deionization".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.12(2017):11324-11333.
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