TY - GEN
T1 - Hydrogen production by steam reforming of methanol over a Ag/Zno one dimensional catalyst
AU - Pérez-Hernández, R.
AU - Gutiérrez-Martínez, A.
AU - Mayoral, A.
AU - Leonard Deepak, F.
AU - Fernández-García, Ma E.
AU - Mondragón-Galicia, G.
AU - Miki, M.
AU - Jose-Yacaman, M.
PY - 2010
Y1 - 2010
N2 - One dimensional (1-D) and three dimensional (3-D) ZnO were growth by a hydrothermal method. ZnO 1-D was employed as a support for silver nanoparticles in order to design a new catalyst and used on the steam reforming of methanol (SRM) reaction for H2 production. The catalytic activity of the Ag/ZnO sample with low content of Ag showed better performance on the SRM reaction than on high silver loading catalyst. So, the sample with small Ag particle size showed best performance in methanol conversion than catalyst with big Ag particle size, this finding could be attributed to the high ZnO/Ag ratio. According to results of SEM and TEM techniques the catalytic activity: methanol conversion, H2 and low CO production observed on the Ag/ZnO 1-D catalyst occurs in the edge sites rather than the rim sites. The role of Ag is to accept the hydrogen to be released to the gas phase. In addition, the 1.5Ag/ZnO 1-D catalyst showed good stability during the reaction.
AB - One dimensional (1-D) and three dimensional (3-D) ZnO were growth by a hydrothermal method. ZnO 1-D was employed as a support for silver nanoparticles in order to design a new catalyst and used on the steam reforming of methanol (SRM) reaction for H2 production. The catalytic activity of the Ag/ZnO sample with low content of Ag showed better performance on the SRM reaction than on high silver loading catalyst. So, the sample with small Ag particle size showed best performance in methanol conversion than catalyst with big Ag particle size, this finding could be attributed to the high ZnO/Ag ratio. According to results of SEM and TEM techniques the catalytic activity: methanol conversion, H2 and low CO production observed on the Ag/ZnO 1-D catalyst occurs in the edge sites rather than the rim sites. The role of Ag is to accept the hydrogen to be released to the gas phase. In addition, the 1.5Ag/ZnO 1-D catalyst showed good stability during the reaction.
KW - Ag dispersion
KW - Ag/ZnO one dimensional catalyst
KW - Edge/rim sites
KW - SEM
KW - Steam reforming of methanol
KW - TEM
KW - ZnO nanostructures
KW - ZnO rods and nanostars
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UR - http://www.scopus.com/inward/citedby.url?scp=78651252535&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.132.205
DO - 10.4028/www.scientific.net/AMR.132.205
M3 - Conference contribution
AN - SCOPUS:78651252535
SN - 9780878492404
T3 - Advanced Materials Research
SP - 205
EP - 219
BT - Advances in New Catalytic Materials
T2 - 2nd International Symposium on New Catalytic Materials, NCM-2
Y2 - 16 August 2009 through 20 August 2009
ER -