文献类型：期刊文献

英文题名：Sparsely loaded Pt/MIL-96(Al) MOFs catalyst with enhanced activity for H2-SCR in a gas diffusion reactor under 80 °C

作者：Xue, Yijun[1];Sun, Wei[1];Wang, Qian[1];Cao, Limei[1];Yang, Ji[1]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2018

卷号：335

起止页码：612

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20174604398443);WOS:【SCI-EXPANDED(收录号:WOS:000430700500066)】；

基金：This research is based on work supported by the National Natural Science Foundation of China (51778229).

语种：英文

外文关键词：H-2-SCR; MIL-96; NOX

摘要：MOFs (metal-organic frameworks) are stable materials with both organic and inorganic pores, and possess high surface area fascinating structures. Owing to the unique octahedral of aluminum center and strong Al-O bonds, Al-based MOFs show excellent thermal stability. In this paper, MIL-96(Al) is proved to be effective at dispersing Pt particles evenly and sparsely as it is employed as catalyst support. MIL-96(Al) is synthesized via a water based route and different contents of Pt particles are directly deposited on the surface of MIL-96 in one step by hydrothermal method to prepare PtXMIL-96 (x represents Pt content) catalysts. The catalyst are sprayed evenly on carbon paper, with Pt content of 0.03%, 0.11%, 0.27% and 0.41%, respectively, and are applied in a gas diffusion reactor with snakelike flow field for low temperature H-2-SCR. For Pt5MIL-96/CP, the NO removal efficiency can reach up to 100% at 60 degrees C. Electron transfer between Pt and MIL-96 is observed via X-ray photoelectron spectron (XPS). It reveals that the deposited Pt is in metallic state. Meanwhile, the electronic structure of MIL-96 is kept intact in the process of Pt depositing. The excellent performance of Pt5MIL-96/CP catalyst strongly suggests its potential application.