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Fe particles on the tops of carbon nanofibers immobilized on structured carbon microfibers for ammonia decomposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
54603 47016 2013 7 PDF Available
Title
Fe particles on the tops of carbon nanofibers immobilized on structured carbon microfibers for ammonia decomposition
Abstract

•Fe-CNFs/CMFs catalysts were prepared by using CCVD method.•Fe particles located on the tops of carbon nanofibers.•Fe crystal phases were changed from Fe3C to α-Fe(C) when PH2PH2 from 0.20 to 0.33 atm.•Fe3C and α-Fe(C) crystal phases were easily nitrided into Fe2N.•Structured polyhedral Fe2N catalyst was more active for ammonia decomposition.

Fe particles on the tops of carbon nanofibers immobilized on structured carbon microfibers (Fe-CNFs/CMFs) were prepared in situ by the catalytic decomposition of CO over Fe/CMFs catalyst, and their particle sizes, shapes and crystal phases were adjusted by changing the growth time of CNFs and the partial pressure of hydrogen. The as-obtained Fe-CNFs/CMFs were used as a catalyst for ammonia decomposition, which showed higher activity when they were prepared with the longer growth time of CNFs and the higher partial pressure of hydrogen. Moreover, the behavior of the typical Fe-CNFs/CMFs catalyst was also investigated when changing the experimental conditions.

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Keywords
Structured Fe catalyst; Fe particles on the tops of CNFs; α-Fe(C); Fe3C; Ammonia decomposition
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Fe particles on the tops of carbon nanofibers immobilized on structured carbon microfibers for ammonia decomposition
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 216, 1 November 2013, Pages 254–260
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
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