文献类型：期刊文献

英文题名：Thermal stability of nanoparticle supported on Al2O3 with different morphologies

作者：Zhang, Wei[1];Lei, Jing[1];Sui, Zhi-Jun[1];Zhu, Ka-Ke[1];Zhu, Yi-An[1];Zhou, Xing-Gui[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2019

卷号：6

期号：9

外文期刊名：MATERIALS RESEARCH EXPRESS

收录：;EI(收录号：20193307322331);WOS:【SCI-EXPANDED(收录号:WOS:000475902000005)】；

基金：This work was funded by National Key R&D Program of China (2018YFB0604700) and Natural Science Foundation of China (NSFC, 91645122).

语种：英文

外文关键词：alumina; morphology; supported particles; thermal stability

摘要：Al2O3 nanocrystals with four various morphologies have been synthesized and used to support Pt nanoparticles and their structural stabilities under high temperature treatment were tested. The results show that Pt supported on a novel coral-like Al2O3 sample synthesized by methanol solvothermal method showed the highest thermal stability due to the strongest interaction between Pt and the support. But the Pt nanoparticles diameters of all the samples tend to be bimodal distributed, centered around 1-3 and 10-20 nm, which is mainly because the different content of coordinatively unsaturated pentahedral Al3+ sites.