期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 137, 期 2, 页码 913-918出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja511389q
关键词
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资金
- National Natural Science Foundation of China [21207018, 21273033, 21203024]
- Fujian Science and Technology Department [2014J06003]
- Recruitment Program of Global Young Experts
- Program for New Century Excellent Talents in University [NCET-10-0108]
- Award MinJiang Scholar Program in Fujian Province
On-board fuel cell technology requires proton conducting materials with high conductivity not only at intermediate temperatures for work but also at room temperature and even at subzero temperature for startup when exposed to the colder climate. To develop such materials is still challenging because many promising candidates for the proton transport on the basis of extended microstructures of water molecules suffer from significant damage by heat at temperatures above 80 degrees C or by freeze below -5 degrees C. Here we show imidazole loaded tetrahedral polyimides with mesopores and good stability (Im@Td-PNDI 1 and Im@Td-PPI 2) exhibiting a high anhydrous proton conductivity over a wide temperature range from -40 to 90 degrees C. Among all anhydrous proton conductors, the conductivity of 2 is the highest at temperatures below 40 degrees C and comparable with the best materials, His@[Al(OH)(1,4-ndc)](n) and [Zn-3(H2PO4)(6)(H2O)(3)](Hbim), above 40 degrees C.
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