Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: Ru/FeOx catalyst performance design: Highly dispersed Ru species for selective carbon dioxide hydrogenation
作者: Zhang, D;  Luo, JJ;  Wang, JJ;  Xiao, X;  Liu, YF;  Qi, W;  Su, DS;  Chu, W
发表日期: 2018-1-18
摘要: A series of Ru/FeOx catalysts were synthesized for the selective hydrogenation of CO2 to CO. Detailed characterizations of the catalysts through X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and temperature-programmed techniques were performed to directly monitor the surface chemical properties and the catalytic performance to elucidate the reaction mechanism. Highly dispersed Ru species were observed on the surface of FeOx regardless of the initial Ru loading. Varying the Ru loading resulted in changes to the Ru coverage over the FeOx surface, which had a significant impact on the interaction between Ru and adsorbed H, and concomitantly, the H-2 activation capacity via the ability for H-2 dissociation. FeOx having 0.01% of Ru loading exhibited 100% selectivity toward CO resulting from the very strong interaction between Ru and adsorbed H, which limits the desorption of the activated H species and hinders over-reduction of CO to CH4. Further increasing the Ru loading of the catalysts to above 0.01% resulted in the adsorbed H to be easily dissociated, as a result of a weaker interaction with Ru, which allowed excessive CO reduction to produce CH4. Understanding how to selectively design the catalyst by tuning the initial loading of the active phase has broader implications on the design of supported metal catalysts toward preparing liquid fuels from CO2. (C) 2018, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
刊名: CHINESE JOURNAL OF CATALYSIS
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.




Recommended Citation:
Zhang, D,Luo, JJ,Wang, JJ,et al. Ru/feox Catalyst Performance Design: Highly Dispersed Ru Species For Selective Carbon Dioxide Hydrogenation[J]. Chinese Journal Of Catalysis,2018,39(1):157-166.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zhang, D]'s Articles
 [Luo, JJ]'s Articles
 [Wang, JJ]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zhang, D]‘s Articles
 [Luo, JJ]‘s Articles
 [Wang, JJ]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace