期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 130, 期 39, 页码 13140-13144出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja804683j
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资金
- Higher Education Commission (HEC) of Pakistan
- Deutscher Akademischer Austauschdienst (DAAD) [A/04/30795)]
- CONICET
- Max Planck Society (Germany)
- Alexander von Humboldt Stiftung (Germany)
- Centro Interdisciplinario de Nanociencia y Nanotecnologia (CINN)
A new approach to the facile large-scale fabrication of robust silicon membranes with artificial proton conducting channels is presented. Ordered two-dimensional macroporous silicon was rendered proton conducting by growing a thick uniform polyelectrolyte brush using surface-initiated atom transfer radical polymerization throughout the porous matrix. The fabricated silicon-poly(sulfopropyl methacrylate) hybrid membranes were evaluated for their proton conductivity, ion exchange capacity, and water uptake. With proton conductivities in the range of 10(-2) S/cm, these proof-of-concept experiments highlight a promising alternative for producing tailorable proton conducting membranes. This approach constitutes a benchmark for the preparation and study of model systems and, in addition, for the large-scale fabrication of membranes suitable for a wide range of technological applications.
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