Boosting propane dehydrogenation of defective S-1 stabilized singleatom Pt and ZnO catalysts via coordination environment regulation  

作　　者：Fuwen Yang Jie Zhang Jinwei Chen Gang Wang Tong Yu Qian Li Zongbo Shi Qiushi Sun Runsheng Zhuo Ruilin Wang 

机构地区：[1]College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China [2]Engineering Research Center of Alternative Energy Materials&Devices,Ministry of Education,Sichuan University,Chengdu 610065,China [3]REZEL Catalysts Corporation,Shanghai 200120,China

出　　处：《Nano Research》2024年第7期5884-5896,共13页纳米研究（英文版）

基　　金：supported by Sichuan Science and Technology Program(Nos.2020YFH0176 and 2020SZYZF0002);the Fundamental Research Funds for the Central Universities(No.20826041E4280);the Sichuan International and the Scientific and technological innovation cooperation project(No.2022YFH0039).

摘　　要：Pt single atoms catalysts with precise coordination environment and high stability are expected to achieve high performance of propane dehydrogenation(PDH).In this work,an innovative synthetic strategy is proposed to construct the S-1@0.1Pt9Zn@DPS-1 nanocomposite as a highly efficient PDH catalyst.Defect engineering is applied to induce the formation of defective porous silicalite-1(DPS-1),which is favorable for achieving the uniformly distributed ZnO nanoclusters.The ZnO nanoclusters were further served as anchoring sites to stabilize the isolated Pt atoms.The structural characterization revealed that penta-O coordinated Pt single atom coupled with ZnO nanoclusters decorated on the DPS-1.Moreover,the atomically dispersed Pt atoms with the ideal coordination environment could act as the predominant active sites for PDH process.As expected,the optimal S-1@0.1Pt9Zn@DPS-1 catalyst delivered an excellent PDH performance(propane conversion of 40.7%,propylene selectivity of 97.5%)and good cycling regeneration stability.This work provides a new way for improving the activity and stability of catalysts in the field of industrial catalysts.

关 键 词：defect engineering single platinum atom coordination environment propane dehydrogenation PROPYLENE 

分 类 号：O64[理学—物理化学]