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Title: Promotional Effects of In on Non-Oxidative Methane Transformation Over Mo-ZSM-5

Abstract

In this paper, we present a new class of catalysts, InMo-ZSM- 5, which can be prepared by indium impregnation of Mo-ZSM- 5. The incorporation of indium dramatically decreases coke formation during methane dehydroaromatization. The benzene and C 2 hydrocarbons selectivity among total hydrocarbons over InMo-ZSM- 5 remains comparable to that of Mo-ZSM- 5 despite reduced methane conversion due to decreased coke formation. We found 1 wt% indium to be optimal loading for reducing coke selectivity to half that of Mo-ZSM- 5. Characterization methods were not helpful in discerning the interaction of In with Mo but experiments with bimetallic 1In2Mo-ZSM- 5 and mechanical mixture 1In+2Mo-ZSM- 5 suggest that In and Mo need to be in close proximity to suppress coke formation. Finally, this is supported by temperature programmed reduction experiments which show that In incorporation leads to lower Mo reduction temperature in In2Mo-ZMS- 5.

Authors:
 [1];  [2];  [1];  [1];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1302883
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Catalysis Letters
Additional Journal Information:
Journal Name: Catalysis Letters; Journal ID: ISSN 1011-372X
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; methane to benzene; methane dehydroaromatization; coking suppression; heterobimetallic zeolites; InMo-ZSM-5

Citation Formats

Zhang, Yang, Kidder, Michelle, Ruther, Rose E., Nanda, Jagjit, Foo, Guo Shiou, Wu, Zili, and Narula, Chaitanya K. Promotional Effects of In on Non-Oxidative Methane Transformation Over Mo-ZSM-5. United States: N. p., 2016. Web. doi:10.1007/s10562-016-1831-5.
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Zhang, Yang, Kidder, Michelle, Ruther, Rose E., Nanda, Jagjit, Foo, Guo Shiou, Wu, Zili, & Narula, Chaitanya K. Promotional Effects of In on Non-Oxidative Methane Transformation Over Mo-ZSM-5. United States. doi:10.1007/s10562-016-1831-5.
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Zhang, Yang, Kidder, Michelle, Ruther, Rose E., Nanda, Jagjit, Foo, Guo Shiou, Wu, Zili, and Narula, Chaitanya K. Tue . "Promotional Effects of In on Non-Oxidative Methane Transformation Over Mo-ZSM-5". United States. doi:10.1007/s10562-016-1831-5. https://www.osti.gov/servlets/purl/1302883.
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@article{osti_1302883,
title = {Promotional Effects of In on Non-Oxidative Methane Transformation Over Mo-ZSM-5},
author = {Zhang, Yang and Kidder, Michelle and Ruther, Rose E. and Nanda, Jagjit and Foo, Guo Shiou and Wu, Zili and Narula, Chaitanya K.},
abstractNote = {In this paper, we present a new class of catalysts, InMo-ZSM-5, which can be prepared by indium impregnation of Mo-ZSM-5. The incorporation of indium dramatically decreases coke formation during methane dehydroaromatization. The benzene and C2 hydrocarbons selectivity among total hydrocarbons over InMo-ZSM-5 remains comparable to that of Mo-ZSM-5 despite reduced methane conversion due to decreased coke formation. We found 1 wt% indium to be optimal loading for reducing coke selectivity to half that of Mo-ZSM-5. Characterization methods were not helpful in discerning the interaction of In with Mo but experiments with bimetallic 1In2Mo-ZSM-5 and mechanical mixture 1In+2Mo-ZSM-5 suggest that In and Mo need to be in close proximity to suppress coke formation. Finally, this is supported by temperature programmed reduction experiments which show that In incorporation leads to lower Mo reduction temperature in In2Mo-ZMS-5.},
doi = {10.1007/s10562-016-1831-5},
journal = {Catalysis Letters},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}
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DOI:  10.1007/s10562-016-1831-5
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