State Key Laboratory Breeding Base of Green-Chemical, Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China.
Chemistry. 2019 Apr 5;25(20):5316-5321. doi: 10.1002/chem.201806382. Epub 2019 Mar 12.
High surface area and fast mass transport rate are important to enhance the activity and stability of catalysts. In this work, tellurium nanowires and F127 triblock copolymer are used as self-sacrificial and soft templates, respectively, to synthesize PtRuTe mesoporous nanotubes (MNTs). The designed PtRuTe MNTs show uniformly distributed mesopores and an internally hollow structure, which can effectively improve Pt utilization, the catalytic activity and durability, and CO tolerance for the methanol oxidation reaction. Very different from previous 1D metallic catalysts with solid interiors and smooth surfaces, PtRuTe MNTs are unique, with a mesoporous exterior and hollow interior. The facile route presented herein is very feasible for fabricating 1D mesoporous metallic catalysts.
高比表面积和快速传质速率对于提高催化剂的活性和稳定性非常重要。在这项工作中，碲纳米线和 F127 三嵌段共聚物分别被用作自牺牲模板和软模板，来合成 PtRuTe 介孔纳米管（MNTs）。设计的 PtRuTe MNTs 具有均匀分布的介孔和内部中空结构，可有效提高 Pt 的利用率、催化活性和耐久性，以及对甲醇氧化反应的 CO 耐受性。与之前具有实心内部和光滑表面的一维金属催化剂非常不同，PtRuTe MNTs 具有独特的介孔外表面和中空内部。本文提出的这种简便方法非常适用于制备一维介孔金属催化剂。
