Efficient propane dehydrogenation catalyzed by Ru nanoparticles anchored on a porous nitrogen-doped carbon matrix  

作　　者：Tianyi Yang Fangxi Su Dehuan Shi Shenghong Zhong Yalin Guo Zhaohui Liu Jianfeng Huang 

机构地区：[1]State Key Laboratory of Coal Mine Disaster Dynamics and Control,Institute of Advanced Interdisciplinary Studies,School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China [2]Key Laboratory of Advanced Materials Technologies,International(HongKong Macao and Taiwan)Joint Laboratory on Advanced Materials Technologies,College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China

出　　处：《Chinese Chemical Letters》2025年第2期202-205,共4页中国化学快报(英文版)

基　　金：supported by the National Key Research and Development Project of China(No.2022YFE0113800);the National Natural Science Foundation of China(No.22102013);Natural Science Foundation of Chongqing(No.cstc2021jcyj-msxmX0945);Venture and Innovation Support Program for Chongqing Overseas Returnees(No.cx2020107);Thousand Talents Program for Distinguished Young Scholars,Postdoctoral Fellowship Program of CPSF(No.GZB20230910)。

摘　　要：Propane dehydrogenation(PDH)is a vital industrial process for producing propene,utilizing primarily Cr-based or Pt-based catalysts.These catalysts often suffer from challenges such as the toxicity of Cr,the high costs of noble metals like Pt,and deactivation issues due to sintering or coke formation at elevated temperatures.We introduce an exceptional Ru-based catalyst,Ru nanoparticles anchored on a nitrogendoped carbon matrix(Ru@NC),which achieves a propane conversion rate of 32.2%and a propene selectivity of 93.1%at 550°C,with minimal coke deposition and a low deactivation rate of 0.0065 h^(-1).Characterizations using techniques like TEM and XPS,along with carefully-designed controlled experiments,reveal that the notable performance of Ru@NC stems from the modified electronic state of Ru by nitrogen dopant and the microporous nature of the matrix,positioning it as a top contender among state-of-the-art PDH catalysts.

关 键 词：Propane dehydrogenation Ru nanoparticles Porous carbon matrix Ru@NC Electronic interaction 

分 类 号：TQ221.212[化学工程—有机化工] O643.36[理学—物理化学]