期刊
TECHNOLOGIES
卷 8, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/technologies8040053
关键词
hydrazine; gel; LCST; fuel cell; poly (N-isopropylacrylamide)
A reversible gelation-release system was developed for safe storage of toxic hydrazine solution based on gelation at lower critical solution temperature (LCST). Poly(N-isopropylacrylamide) (PNIPAM) and its copolymer could form gels of 35wt% hydrazine by dissolution under low temperature and storage at ambient temperatures. For example, PNIPAM gelled a 63 fold heavier amount of 35wt% hydrazine. Aqueous hydrazine was released from the gels by compression or heating, and the gelation-release cycles proceeded quantitatively (> 95%). The high gelation ability and recyclability are suitable for rechargeable systems for safe storage of hydrazine fuels.
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