非贵金属基氨硼烷水解产氢催化材料研究进展

Hydrogen production from amborane catalyzed by non-noble metal based materials:A review

氨硼烷(AB)因储氢容量高成为理想的储氢材料之一,但在温和条件下水解产氢性能仍有待提高,因此开发加速水解过程的催化剂至关重要。为了更好地开发高活性、高稳定性的AB水解产氢催化剂,对近年来非贵金属基氨硼烷水解产氢催化剂的研究现状进行了归纳总结,包括纯金属催化剂、金属化合物催化剂(硼化物、磷化物、氧化物)、金属/金属化合物催化剂等。本文主要对催化剂的发展、不同催化剂的制备方法以及不同调控方式(微观结构、比表面积、粒径大小、pH、组分以及配体和载体等)对催化剂的催化活性和稳定性的影响进行总结,同时对近年来非贵金属基氨硼烷水解产氢催化剂面临的一些挑战(如催化机理不明、催化剂稳定性不足、AB再生困难等)进行讨论,并依据现有研究提出未来的努力方向。

Amborane(AB)is considered as one of the ideal hydrogen storage materials because of its high hydrogen storage capacity.However,its hydrogen production performance under mild conditions still needs to be improved,so the development of catalysts to accelerate the hydrolysis process is very important.In or⁃der to develop catalysts with high activity and stability for AB hydrolysis,the latest advances in non-noble metal-based catalysts were summarized,including pure metals,metal compounds(borides,phosphates,ox⁃ides),metal/metal compounds,ect.In this paper,the development of catalysts,the preparation methods of different catalysts and the effects of different regulation methods(the microstructures,specific surface areas,particle sizes,pH,different components,ligands and supports)on the catalytic activity and stability of cata⁃lysts were summarized.At the same time,some challenges(such as the unclear catalytic mechanism,the poor stability,the difficult reusability of AB,etc.)faced by non-noble metal based catalysts for hydrogen production were discussed,and the direction of future efforts was proposed according to the existing re⁃search.