Hydrogen generation of ammonia borane hydrolysis catalyzed by Fe22@Co58 core-shell structure

• 作者: Jinrong Huo Ling Fu Chenxu Zhao Chaozheng He
• 来源期刊: 中国化学快报（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: Communications
• 页码范围: 2269-2273
• 页数: 5页
• 语种: 英文

摘要

In this paper, the process of ammonia borane (AB) hydrolysis generate H2 on the transition metal Fe@Co core-shell structure has been obtained. According to the different roles played by H2O molecules and the number of H2O molecules involved, there are three schemes of reaction paths. Route I does not involve the dissociation of H2O molecules and all H atoms come from AB. Moreover, the H2O molecule has no effect on the breaking of the B--H bond or the N--H bond. The reaction absorbs more heat during the formation of the second and third H2 molecules. Route Ⅱ includes the dissociation of H2O molecules and the cleavage of B--H or N--H bonds, respectively, and the reaction shows a slight exotherm. Route Ⅲ started from the break of the B--N bond and obtained 3H2 molecules through the participation of different numbers of H2O molecules. After multiple comparative analyses, the optimal hydrolysis reaction path has been obtained, and the reaction process can proceed spontaneously at room temperature.