Promotional Effect of Cu and Influence of Surface Ni-Cu Alloy for Enhanced H2 Yields from CH4 Decomposition over Cu-Modified Ni Supported on MCM-41 Catalyst

Gutta, N, Velisoju, V, Chatla, A, Boosa, V, Tardio, J, Patel, J and Akula, V 2018, 'Promotional Effect of Cu and Influence of Surface Ni-Cu Alloy for Enhanced H2 Yields from CH4 Decomposition over Cu-Modified Ni Supported on MCM-41 Catalyst', Energy and Fuels, vol. 32, no. 3, pp. 4008-4015.


Document type: Journal Article
Collection: Journal Articles

Title Promotional Effect of Cu and Influence of Surface Ni-Cu Alloy for Enhanced H2 Yields from CH4 Decomposition over Cu-Modified Ni Supported on MCM-41 Catalyst
Author(s) Gutta, N
Velisoju, V
Chatla, A
Boosa, V
Tardio, J
Patel, J
Akula, V
Year 2018
Journal name Energy and Fuels
Volume number 32
Issue number 3
Start page 4008
End page 4015
Total pages 8
Publisher American Chemical Society
Abstract Catalysts based on MCM-41 decorated with 35-70 nm diameter Ni particles were tested for the production of hydrogen by catalytic decomposition of methane (CDM). About 122 N m3 (molNi)-1 hydrogen yield was achieved over a catalyst comprised of optimized Ni loading of 50 wt % Ni/MCM-41. The H2 yield increased dramatically to 204 N m3 (molNi)-1, upon modification with 10 wt % Cu. The presence of Cu, in contact to Ni, appeared to reduce the sintering and coking of the active Ni sites, which enhanced the longevity of the catalyst. Raman analysis of the catalysts recovered after CDM experiments revealed that doping of Cu to Ni/MCM-41 enhanced the graphitic carbon deposition over the catalyst. All of the samples (Ni and Ni-Cu-modified MCM-41) were characterized by H2 chemisorption, SEM/TEM, XPS, XRD, H2-TPR, N2O titration, and Raman spectroscopy to examine the bulk and surface properties of the catalysts.
Subject Chemical Engineering not elsewhere classified
Resources Engineering and Extractive Metallurgy not elsewhere classified
Physical Chemistry not elsewhere classified
Keyword(s) Cox-Free Hydrogen
Methane Decomposition
Carbon Nanotubes
AL Catalysts
Zeolite
LA
Reduction
Nanofiber
NI-AL2O3
Graphene
DOI - identifier 10.1021/acs.energyfuels.7b03363
Copyright notice © 2018 American Chemical Society
ISSN 0887-0624
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