[23a-B203-1~11] 1.4 Energy conversion, storage, resources and environment

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[23a-B203-7] Hydrogen-ammonia release behavior and power generation property of ammonia borane by hydrothermal decomposition

〇Tessui Nakagawa¹, Yoshihiro Shimizu¹, Kazumasa Nasuda², Tomoyuki Ito², Yasuyuki Uchiyama², Naoki Uchiyama² (1.Univ. Ryukyus, 2.Atsumitec)

Keywords:

Ammonia borane,Activation energy,SOFC

We quantified the kinetics of hydrogen and ammonia release during the hydrothermal decomposition of ammonia borane (AB). Subsequently, we estimated the activation energy of this dehydrogenation reaction. The calculated value of the activation energy was reasonable when compared with that of the catalytic hydrolysis of AB. Furthermore, we demonstrated power generation using a solid oxide fuel cell (SOFC) fueled by hydrogen derived from AB, which also contained ammonia and moisture. The I-V characteristics observed using the AB-derived hydrogen exhibited comparable or better performance than pure hydrogen, and no degradation was observed during a short-term evaluation period.