Tunable Nanochannels along Graphene Oxide/Polymer Core-Shell Nanosheets to Enhance Proton Conductivity

被引：96

作者：

He, Guangwei ^{[1
,2
]}

Chang, Chaoyi ^{[2
]}

Xu, Mingzhao ^{[2
]}

Hu, Shen ^{[2
]}

Li, Lingqiao ^{[2
]}

Zhao, Jing ^{[1
,2
]}

Li, Zhen ^{[1
,2
]}

Li, Zongyu ^{[1
,2
]}

Yin, Yongheng ^{[1
,2
]}

Gang, Mingyue ^{[1
,2
]}

Wu, Hong ^{[1
,2
]}

Yang, Xinlin ^{[1
,3
]}

Guiver, Michael D. ^{[1
,4
]}

Jiang, Zhongyi ^{[1
,2
]}

机构：

[1] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, Minist Educ, Tianjin 300072, Peoples R China

[3] Nankai Univ, Inst Polymer Chem, Key Lab Funct Polymer Mat, Minist Educ, Tianjin 300071, Peoples R China

[4] Tianjin Univ, Sch Mech Engn, State Key Lab Engines, Tianjin 300072, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2015年 / 25卷 / 48期

关键词：

functionalized graphene; nanochannel; phosphorylation; proton conductivity; proton exchange membrane; POLYMER ELECTROLYTE MEMBRANES; POLY(ETHER ETHER KETONE); FUEL-CELL APPLICATIONS; EXCHANGE MEMBRANES; LOW-HUMIDITY; OXIDE MEMBRANES; MULTIBLOCK COPOLYMERS; WATER-RETENTION; PRECIPITATION POLYMERIZATION; POLY(VINYLPHOSPHONIC ACID);

D O I：

10.1002/adfm.201503229

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Simultaneous manipulation of topological and chemical structures to induce ionic nanochannel formation within solid electrolytes is a crucial but challenging task for the rational design of high-performance electrochemical devices including proton exchange membrane fuel cell. Herein, a novel generic approach is presented for the construction of tunable ion-conducting nanochannels via direct assembly of graphene oxide (GO)/poly(phosphonic acid) core-shell nanosheets prepared by surface-initiated precipitation polymerization. Using this simple and rapid approach to engineer GO/polymer nanosheets at the molecular-level, ordered and continuous nanochannels with interconnected hydrogen-bonded networks having a favorable water environment can be created. The resulting membranes exhibit proton conductivities up to 32 mS cm(-1) at 51% relative humidity, surpassing state-of-the-art Nafion membrane and all previously reported GO-based materials.

引用

页码：7502 / 7511

页数：10

共 64 条

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