Fabrication of Anion-Exchange Polymer Layered Graphene-Melamine Electrodes for Membrane Capacitive Deionization

Gu, Xiaoyu1; Deng, Yonghong2; Wang, Chaoyang1

2017-01

10.1021/acssuschemeng.6b01685

ACS Sustainable Chemistry & Engineering   影响因子和分区

2168-0485

A novel nitrogen-doped reduced graphene sponge composite (NRGS) is fabricated by using melamine sponge to restrain the aggregation of graphene sheets during reduction. The anion-exchange polymer layered graphene composites (A-NRGS) are prepared by coating the surface of the NRGS electrode with cross-linked poly(vinyl alcohol) with quaternization modification (C-qPVA). With the help of a melamine sponge to suppress the agglomerate of graphene sheets, the NRGS exhibits a unique three-dimensional (3D) interconnected porous structure with abundant nitrogen doping of 5.2%. Its specific surface area is up to 241 m(2)/g. In addition, the enhanced wettability of A-NRGS composites favors the diffusion of ion from the electrolyte to electrode. Therefore, A-NRGS composites have excellent electrochemical capacity (184 F/g). The membrane capacitive deionization (MCDI) performance for A-NRGS electrode (11.3 mg/g) is higher than that of pristine reduced graphene oxide (RGO) (6.2 mg/g) and NAGS (8.6 mg/g) electrodes. All the results demonstrate that A-NRGS composites can be a promising candidate for CDI and other electrochemical applications.

Graphene N-Doped Anion-exchange Membrane capacitive deionization Melamine

SCI ; EI

英语

通讯

NSFC[21274046] ; NSFC[21474032]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:000391246000036

AMER CHEMICAL SOC

20170203234399

Crosslinking ; Doping (additives) ; Electrolytes ; Fabrication ; Ions ; Melamine ; Nitrogen ; Polymer membrane electrodes ; Polyvinyl alcohols

Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1

Web of Science

1.South China Univ Technol, Res Inst Mat Sci, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China
2.South Univ Sci & Technol China, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China

Gu, Xiaoyu,Deng, Yonghong,Wang, Chaoyang. Fabrication of Anion-Exchange Polymer Layered Graphene-Melamine Electrodes for Membrane Capacitive Deionization[J]. ACS Sustainable Chemistry & Engineering,2017,5(1):325-333.

Gu, Xiaoyu,Deng, Yonghong,&Wang, Chaoyang.(2017).Fabrication of Anion-Exchange Polymer Layered Graphene-Melamine Electrodes for Membrane Capacitive Deionization.ACS Sustainable Chemistry & Engineering,5(1),325-333.

Gu, Xiaoyu,et al."Fabrication of Anion-Exchange Polymer Layered Graphene-Melamine Electrodes for Membrane Capacitive Deionization".ACS Sustainable Chemistry & Engineering 5.1(2017):325-333.