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Amino-functionalized mesoporous silica based polyethersulfone-polyvinylpyrrolidone composite membrane for elevated temperature fuel cells

journal contribution
posted on 01.01.2016, 00:00 authored by J Zhang, S F Lu, Haijin Zhu, K F Chen, J Liu, Y Xiang, Maria ForsythMaria Forsyth, S P Jianga
Inorganic-organic nanostructured hybrid membranes based on polyethersulfone (PES)-polyvinylpyrrolidone (PVP) were prepared with mesoporous silica materials. All the hybrid membranes showed the similar phosphoric acid (PA) uptake. However, the proton conductivity of the PA-PES-PVP membrane was significantly increased after the addition of the inorganic fillers, especially for the amino-functionalized hollow mesoporous silica (NH2-HMS). The cell performance test also confirmed the superiority of the PES-PVP membranes with the inorganic fillers. The highest peak power density at 180 oC reached up to 480 mW cm-2 for the NH2-HMS based composite membrane fuel cell, which is 92.7 % higher than that of the PA-PES-PVP membrane fuel cell at the identical condition. The outstanding performance of the inorganic-organic hybrid membranes might be due to the facilitated proton transportation in the ordered mesoporous channels, and the great water retention of the inorganic fillers.

History

Journal

ECS Transactions

Volume

75

Issue

14

Pagination

581 - 588

Publisher

ELECTROCHEMICAL SOC INC

Location

Honolulu, HI

ISSN

1938-6737

eISSN

1938-5862

Language

English

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2016, The Electrochemical Society

Editor/Contributor(s)

D Jones, H Uchida, H Gasteiger, K SwiderLyons, F Buchi, P Pintauro, B Pivovar, K Ayers, K Perry, P Shirvanian, A Weber, V Ramani, P Strasser, R Mantz, K Shinohara, S Mitsushima, C Coutanceau, J Fenton, Schmidt, T Fuller, S Narayanan, Y Kim, L Zhuang, S Sun