Gao Yanxiu, Ding Yi
Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, P. R. China.
Chemistry. 2020 Jul 22;26(41):8845-8856. doi: 10.1002/chem.202000471. Epub 2020 May 27.
Nanoporous metals (NPMs) with diversified shapes and compositions can be readily fabricated by dealloying monolithic alloys through chemical or electrochemical processes. Benefited from their high surface area, high density of low-coordinated sites on the ligament surface, and unsupported character, NPMs have attracted increasing attentions as a new class of heterogeneous catalysts with high activity, selectivity, and long-term stability, reminiscent of the great success of Raney nickel. In the present minireview, we summarize the recent advances in this exciting field and provide a critical discussion of the nature of their active sites and the structure-property correlation.
通过化学或电化学方法对整体合金进行脱合金化处理,可以轻松制备出具有多种形状和成分的纳米多孔金属(NPMs)。得益于其高比表面积、韧带表面低配位位点的高密度以及无支撑特性,NPMs作为一类具有高活性、选择性和长期稳定性的新型多相催化剂,已引起越来越多的关注,这让人联想到阮内镍取得的巨大成功。在本综述中,我们总结了这一令人兴奋的领域的最新进展,并对其活性位点的性质以及结构-性能相关性进行了批判性讨论。