수소 발생을 위한 암모니아 보레인의 열분해

Abstract

Thermal decomposition of Ammonia Borane have been investigated with various analytical methods including TGA, TP-MS, DSC. By-products such as aminoborane and borazine were identified during hydrogen release by TGA, TP-MS analysis. H2 release amount was measured at each temperature isothermally, which resulted in 7wt% H2 release at 130oC. Moreover, higher temperature enhanced hydrogen release kinetics leading to shortened induction period from 20 min at 95 oC to 0 min at 130oC. Melting and decomposition at close temperature (4 oC difference) caused the formation of thin foam during hydrogen release. Suppression of by-products and thin foam formation during hydrogen release is suggested as critical issues to realize chemical hydrogen storage system with ammonia borane.