The Gene & Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA 99164, USA.
Chem Soc Rev. 2012 Dec 21;41(24):7994-8008. doi: 10.1039/c2cs35201j.
Research interest in bimetallic catalysts is mainly due to their tunable chemical/physical properties by a number of parameters like composition and morphostructure. In catalysis, numerous bimetallic catalysts have been shown to exhibit unique properties which are distinct from those of their monometallic counterparts. To meet the growing energy demand while mitigating the environmental concerns, numerous endeavors have been made to seek green and sustainable energy resources, among which hydrogen has been identified as the most promising one with bimetallic catalysts playing important roles. This tutorial review intends to summarize recent progress in bimetallic catalysts for hydrogen production, specifically focusing on that of reforming technologies as well as the relevant processes like water-gas shift (WGS) and CO preferential oxidation (PROX), and emphasizing on the fundamental understanding of the nature of catalytic sites responsible for generating high purity hydrogen and minimizing carbon monoxide formation. Meanwhile, some important synthesis and characterization methods of bimetallic catalysts developed so far are also summarized.
双金属催化剂的研究兴趣主要源于其可通过多种参数(如组成和形态结构)来调节化学/物理性质。在催化领域,许多双金属催化剂表现出独特的性质,与单金属催化剂明显不同。为了满足不断增长的能源需求,同时减轻环境问题,人们已经做出了许多努力来寻找绿色和可持续的能源资源,其中氢气被认为是最有前途的一种,双金属催化剂在其中发挥着重要作用。本综述旨在总结用于制氢的双金属催化剂的最新进展,特别侧重于重整技术以及水煤气变换(WGS)和 CO 优先氧化(PROX)等相关过程,强调对产生高纯度氢气和最小化一氧化碳形成的催化位本质的基本理解。同时,还总结了迄今为止开发的一些双金属催化剂的重要合成和表征方法。