氨硼烷水解制氢催化剂载体的研究进展

发布时间：2018-04-30 23:01

本文选题：氨硼烷 + 制氢　；参考：《材料导报》2017年17期

【摘要】：氢由于具有高效率和高功率密度而被认为是一种出色的清洁能源。化学储氢材料要求具有高的氢储存量。氨硼烷具有高氢含量(19.6%),且在普通贮存条件下稳定,被认为是有吸引力的储氢材料之一。由于氨硼烷在常温下不易放氢,故放氢催化剂成为氨硼烷放氢研究的核心技术和主要方向。金属催化剂可以显著提高水解放氢速度,是影响氨硼烷水解放氢的关键因素,但是金属颗粒催化剂一般都存在颗粒粒径生长过快、易团聚等缺点。为了解决这一问题,研究者选择不同的载体来分散催化剂,使催化剂金属分散在载体表面,防止团聚和过快增长,从而暴露更多活性位点,使催化氨硼烷放氢速率更快。文章将针对不同催化剂载体对氨硼烷水解的催化效果进行阐述。
[Abstract]:Hydrogen is considered to be an excellent clean energy because of its high efficiency and high power density. Chemical hydrogen storage materials require high hydrogen storage. Ammonia borane has high hydrogen content (19.6%) and is stable under ordinary storage conditions. It is considered as one of the attractive hydrogen storage materials. The catalyst has become the core technology and the main direction of the research on the dehydrogenation of ammonia borane. Metal catalysts can significantly increase the rate of hydrolysis and discharge hydrogen. It is the key factor affecting the hydrolysis and discharge of the borane. However, the particle size of the metal particle catalyst usually exists too fast and is easy to reunite. In order to solve this problem, the researchers choose different kinds. The carrier is used to disperse the catalyst to disperse the catalyst metal on the surface of the carrier to prevent the reunion and excessive growth, thus exposing more active sites and making the catalytic activity of the dehydrogenation of ammonia borane faster. The catalytic effect of different catalyst carriers on the hydrolysis of ammonia borane is described in this paper.

【作者单位】：河北工业大学材料科学与工程学院;
【基金】：国家自然科学基金(21603052;51301057)
【分类号】：O643.36;TQ116.2

【相似文献】