Formation of a High Conductivity Fuel Cell Electrolyte by Pressing Diphenylsiloxane-Based Inorganic-Organic Hybrid Particles
An inorganic–organic nanohybrid particle with a two‐dimensional chain structure, diphenylsiloxane‐silica (Ph2SiO–SiO2), was prepared by sol–gel process using diphenyldiethoxysilane (DPDES) and tetraethoxysilane (TEOS), and a high proton conducting polymer of poly(2‐acrylamido‐2‐methyl‐1‐propane sulf...
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Published in | Journal of the American Ceramic Society Vol. 92; no. s1; pp. S185 - S188 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Malden, USA
Blackwell Publishing Inc
01.01.2009
Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | An inorganic–organic nanohybrid particle with a two‐dimensional chain structure, diphenylsiloxane‐silica (Ph2SiO–SiO2), was prepared by sol–gel process using diphenyldiethoxysilane (DPDES) and tetraethoxysilane (TEOS), and a high proton conducting polymer of poly(2‐acrylamido‐2‐methyl‐1‐propane sulfonic acid) (PAMPS) was deposited on the Ph2SiO–SiO2 particles via layer‐by‐layer assembly. A flexible sheet‐like electrolyte was successfully obtained from the resulting PAMPS‐deposited particles by pressing. The proton conductivity of the sheet prepared using unmodified Ph2SiO–SiO2 particles was lower than 10−9 S/cm at 80°C. On the other hand, the PAMPS‐deposited samples showed proton conductivities ∼7 orders of magnitude higher than those of the sample prepared using unmodified particles, and their conductivity reached about 1 × 10−2 S/cm at 80°C and 80% relative humidity. This is ascribed to the PAMPS layer being concentrated at the particle interfaces, which percolated throughout the monolithic sample. |
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Bibliography: | ArticleID:JACE02640 istex:EBA4D1CEBAB914A1080B546885CA6CF68B744CFA ark:/67375/WNG-3GVN5LWF-M Presented at the 10th International Conference on Ceramic Processing Science, May 25–28, 2008, Inuyama, Japan. This work has been supported by New Energy and Industrial Technology Development Organization (NEDO) project “Development of Technology for Next‐Generation Fuel Cells.” M. Hickner—contributing editor ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0002-7820 1551-2916 |
DOI: | 10.1111/j.1551-2916.2008.02640.x |