TY - JOUR
T1 - The influence of the support composition on the physicochemical and catalytic properties of Cu catalysts supported on Zirconia-Alumina for methanol steam reforming
AU - Mateos-Pedrero, C.
AU - Azenha, C.
AU - Pacheco, Pacheco Tanaka
AU - Sousa, J. M.
AU - Mendes, A.
N1 - Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/11/15
Y1 - 2020/11/15
N2 - ZrAl materials with different compositions have been synthesized by the hydrothermal method and used as supports of Cu catalysts for hydrogen production from methanol steam reforming (MSR). The effect of the support composition, Zr/Al ratio, on the physicochemical and catalytic properties of CuZrAl catalysts was studied. The characterization results show that there is an optimal support composition (Zr/Al ratio of 0.4), allowing to achieve the highest methanol conversion due to enhanced dispersion and reducibility of copper. Zr-rich catalysts displayed low MSR activity, which is likely due to the segregation and crystallization of zirconia, resulting in the formation of large copper particles with lowered dispersion and reducibility. The catalyst with the optimal Zr/Al ratio shows the highest methanol conversion, enhanced selectivity and good long term stability, rendering this catalyst a promising material for the production of high purity H2 from MSR.
AB - ZrAl materials with different compositions have been synthesized by the hydrothermal method and used as supports of Cu catalysts for hydrogen production from methanol steam reforming (MSR). The effect of the support composition, Zr/Al ratio, on the physicochemical and catalytic properties of CuZrAl catalysts was studied. The characterization results show that there is an optimal support composition (Zr/Al ratio of 0.4), allowing to achieve the highest methanol conversion due to enhanced dispersion and reducibility of copper. Zr-rich catalysts displayed low MSR activity, which is likely due to the segregation and crystallization of zirconia, resulting in the formation of large copper particles with lowered dispersion and reducibility. The catalyst with the optimal Zr/Al ratio shows the highest methanol conversion, enhanced selectivity and good long term stability, rendering this catalyst a promising material for the production of high purity H2 from MSR.
KW - Copper
KW - Highly dispersed catalysts
KW - Hydrogen.
KW - Methanol steam reforming
KW - Zirconia-alumina
UR - http://www.scopus.com/inward/record.url?scp=85086936462&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2020.119243
DO - 10.1016/j.apcatb.2020.119243
M3 - Article
AN - SCOPUS:85086936462
SN - 0926-3373
VL - 277
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 119243
ER -
