Enhancement on Proton Conductivity of Three-Dimensionally Ordered Macroporous Silica Membrane by Surface Sulfonation

2006 ◽  
Vol 301 ◽  
pp. 143-146
Author(s):  
Hirokazu Munakata ◽  
Hiroto Chiba ◽  
Kaoru Dokko ◽  
Jun Ichi Hamagami ◽  
Takashi Takei ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Composite Membrane ◽  
Silica Matrix ◽  
Template Method ◽  
Silica Membrane ◽  
Macroporous Silica ◽  
Proton Conducting ◽  
Proton Conducting Membrane ◽  
Ordered Macroporous ◽  
Sulfonated Silica

A new proton-conducting membrane was prepared consisting of uniformly macroporous silica matrix and a proton-conducting gel polymer, 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS). Three-dimensionally ordered macroporous silica membrane was fabricated by use of a colloidal template method with mono-dispersed polystyrene beads. Surface sulfonation of the pores in the silica matrix was performed by using 1,3-propanesultone. The sulfonated silica matrix exhibited about 400 times higher proton conductivity than unmodified one. The proton conductivity of the composite membrane was also successfully enhanced by using the sulfonated silica matrix.

scholarly journals Nitrile functionalized graphene oxide for highly selective sulfonated poly(arylene ether nitrile)-based proton-conducting membranes

RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2971-2978 ◽  
Author(s):  
Mengna Feng ◽  
Tao Cheng ◽  
Xu Huang ◽  
Yumin Huang ◽  
Xiaobo Liu
Keyword(s):  
Graphene Oxide ◽  
Proton Conductivity ◽  
Interfacial Interaction ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Proton Conducting ◽  
Proton Conducting Membrane ◽  
Arylene Ether ◽  
Conducting Membranes ◽  
Sulfonated Poly

The incorporation of 4-(3-aminophenoxy)phthalonitrile grafted graphene oxide into SPEN proton-conducting membrane was proved to be an effective way to improve the interfacial interaction and proton conductivity performance.

Morphology and Proton Conductivity of Composite Membranes Based on PWA and PPEK

2012 ◽  
Vol 512-515 ◽  
pp. 1945-1948
Author(s):  
Hui Ning Deng ◽  
Li Ya Gao ◽  
Jia Yuan Chen ◽  
Jun Wang
Keyword(s):  
Proton Conductivity ◽  
Composite Membrane ◽  
Composite Membranes ◽  
Particle Dispersion ◽  
Proton Conducting ◽  
Ether Ketone ◽  
Relationship Of ◽  
The Relationship

A series of HPA-containing Poly(phthalazinone ether ketone) (PPEK) membranes was prepared and their microstructure and conductivities were studied in this work. The results showed the composite membrane had no proton conducting ability with PWA content less than 75%, while the conductivity for the PWA/(PEEK-PVP) membranes with 35% of PWA was higher than 4×10-4 S/cm. Proton conductivities up to 4.86×10-3 S/cm have been measured at temperatures up to at 140°Cand 100% RH for PWA/(PEEK-PVP) membranes with 35% of PWA and 70% PVP. The relationship of conductivity and the morphology of the PPEK/PWA membranes showed that the PWA particle dispersion is the key parameters.

Synergetic proton conducting effect in acid–base composite of phosphonic acid functionalized polystyrene and triazolyl functionalized polystyrene

RSC Advances ◽  
2014 ◽  
Vol 4 (64) ◽  
pp. 33702-33712 ◽  
Author(s):  
Yepei Zhang ◽  
Baohua Yue ◽  
Shuaiyuan Han ◽  
Liuming Yan
Keyword(s):  
Proton Conductivity ◽  
Composite Membrane ◽  
Phosphonic Acid ◽  
Acid Base ◽  
Proton Conducting ◽  
Base Composite ◽  
Magnitude Improvement

Three orders of magnitude improvement in proton conductivity was observed in the PS-PA/PS-Tri composite membrane.

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