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A review on the recent developments of ruthenium and nickel catalysts for COx-free H2 generation by ammonia decomposition
Korean Journal of Chemical Engineering ( IF 2.9 ) Pub Date : 2021-05-31 , DOI: 10.1007/s11814-021-0767-7
Thien An Le , Quoc Cuong Do , Youngmin Kim , Tae-Wan Kim , Ho-Jeong Chae

The emerging H2 economy faces storage and transport challenges, and the use of ammonia (NH3) as a COx-free source of H2 via NH3 decomposition has recently attracted attention. Noble Ru-based catalysts are considered the best choice for highly efficient NH3 decomposition; however, their high cost and limited availability are disadvantages in large-scale applications. Otherwise, among non-noble metal-based catalysts, Ni-based catalysts are the most active, and Ni is considered a good alternative candidate material for NH3 decomposition because of its low cost. At present, some challenges remain in efforts to improve the efficiency of both Ru- and Ni-based systems. This review covers recent developments regarding these catalysts and can serve as a comprehensive work for evaluating effective long-term strategies.



中文翻译:

氨分解制无COx制氢钌镍催化剂研究进展

新兴的 H 2经济面临储存和运输挑战,最近使用氨 (NH 3 ) 作为通过 NH 3分解的不含CO x的 H 2来源引起了人们的关注。Noble Ru 基催化剂被认为是高效分解NH 3的最佳选择;然而,它们的高成本和有限的可用性是大规模应用的缺点。另外,在非贵金属基催化剂中,Ni基催化剂的活性最高,Ni被认为是NH 3的良好替代候选材料分解,因为它的成本低。目前,在提高 Ru 和 Ni 基系统的效率方面仍然存在一些挑战。这篇综述涵盖了这些催化剂的最新发展,可以作为评估有效长期战略的综合工作。

更新日期:2021-06-01
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