Verma Priyanka, Kuwahara Yasutaka, Mori Kohsuke, Raja Robert, Yamashita Hiromi
Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
School of Chemistry, University of Southampton, University Road, Highfield, Southampton, SO17 1 BJ, UK.
Nanoscale. 2020 Jun 4;12(21):11333-11363. doi: 10.1039/d0nr00732c.
The development of advanced materials for heterogeneous catalytic applications requires fine control over the synthesis and structural parameters of the active site. Mesoporous silica materials have attracted increasing attention to be considered as an important class of nanostructured support materials in heterogeneous catalysis. Their large surface area, well-defined porous architecture and ability to incorporate metal atoms within the mesopores lead them to be a promising support material for designing a variety of different catalysts. In particular, SBA-15 mesoporous silica has its broad applicability in catalysis because of its comparatively thicker walls leading to higher thermal and mechanical stability. In this review article, various strategies to functionalize SBA-15 mesoporous silica have been reviewed with a view to evaluating its efficacy in different catalytic transformation reactions. Special attention has been given to the molecular engineering of the silica surface, within the framework and within the hexagonal mesoporous channels for anchoring metal oxides, single-site species and metal nanoparticles (NPs) serving as catalytically active sites.
用于多相催化应用的先进材料的开发需要对活性位点的合成和结构参数进行精细控制。介孔二氧化硅材料作为多相催化中一类重要的纳米结构载体材料，已引起越来越多的关注。它们的大表面积、明确的多孔结构以及在介孔内纳入金属原子的能力，使其成为设计各种不同催化剂的有前途的载体材料。特别是，SBA - 15介孔二氧化硅因其相对较厚的壁导致更高的热稳定性和机械稳定性，在催化中具有广泛的适用性。在这篇综述文章中，已经综述了各种使SBA - 15介孔二氧化硅功能化的策略，以评估其在不同催化转化反应中的功效。特别关注了二氧化硅表面、骨架内以及六方介孔通道内用于锚定金属氧化物、单中心物种和作为催化活性位点的金属纳米颗粒（NPs）的分子工程。
