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Report No.

Studies on catalytic dehydrogenation for organic hydrides

Isozumi, Yukihiro; Suzuki, Ryuta*; Hakoda, Teruyuki; Yoshikawa, Masahito; Aritani, Hirofumi*

The organic hydrides has been focused as a substance that stores and transports hydrogen safely, therefore the optical sensor to detect its leakage has been needed for its flammability. In recent studies, some kind of dehydrogen metals over WO$$_{3}$$ gasochromic substrate have been developed for the sensor, but dehydro-mechanism over these metals was not clear because WO$$_{3}$$ absorb hydrogen produced through dehydrogenation. In the present study, the dehydrogen reaction over these metals was evaluated by comparing the dehydrogen activity over catalyst metals over different substrates including WO$$_{3}$$. It was confirmed that Pt had a dehydro-activity at the lowest reaction temperature and produced the amount of benzene was equal to that of consumed cyclohexane stoichiometrically. Sintering of Pt over the WO$$_{3}$$ substrate also caused deactivation gradually up to 125$$^{circ}$$C.



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