TY - JOUR
T1 - Metal sulfate decomposition using green Pd-based catalysts supported on ΓAl2O3 and SiC
T2 - A common step in sulfur-family thermochemical cycles
AU - Soto-Díaz, Oliver
AU - Orozco-Mena, Raul E.
AU - Román-Aguirre, Manuel
AU - Romero-Paredes, Hernando
AU - Camacho-Dávila, Alejandro A.
AU - Ramos-Sánchez, Víctor H.
N1 - Publisher Copyright:
© 2018 Hydrogen Energy Publications LLC
PY - 2019/5/9
Y1 - 2019/5/9
N2 - Thermochemical water splitting cycles (TWSCs) are processes with the potential for large-scale production of carbon-free hydrogen. Among these, the sulfur-family thermochemical cycles are considered the most promising due to both, the use of readily affordable chemical reagents and the temperature required to thermally decompose oxygenated sulfur compounds, which is achievable by solar means. Indeed, solar heat assisted metal sulfate decomposition is a key step, where catalysis can be employed to reduce decomposition temperature. Here we present a green route to synthesize Ag-Pd and Fe-Pd intermetallic alloy catalysts supported over γ-Al2O3 and Si-C by a microwave-assisted method using glycerol both as a solvent and as a reducing and stabilizing agent. The obtained supported catalysts were physicochemically characterized. Fe-Pd/Al2O3 catalyst exhibited the best performance, abating the zinc sulfate decomposition temperature by ca. 85 °C in comparison with other reported catalysts.
AB - Thermochemical water splitting cycles (TWSCs) are processes with the potential for large-scale production of carbon-free hydrogen. Among these, the sulfur-family thermochemical cycles are considered the most promising due to both, the use of readily affordable chemical reagents and the temperature required to thermally decompose oxygenated sulfur compounds, which is achievable by solar means. Indeed, solar heat assisted metal sulfate decomposition is a key step, where catalysis can be employed to reduce decomposition temperature. Here we present a green route to synthesize Ag-Pd and Fe-Pd intermetallic alloy catalysts supported over γ-Al2O3 and Si-C by a microwave-assisted method using glycerol both as a solvent and as a reducing and stabilizing agent. The obtained supported catalysts were physicochemically characterized. Fe-Pd/Al2O3 catalyst exhibited the best performance, abating the zinc sulfate decomposition temperature by ca. 85 °C in comparison with other reported catalysts.
KW - Glycerol
KW - Green catalyst
KW - Sulfur-family thermochemical cycles
KW - Synchrotron X-ray diffraction
KW - Zinc sulfate
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U2 - 10.1016/j.ijhydene.2018.08.045
DO - 10.1016/j.ijhydene.2018.08.045
M3 - Article
AN - SCOPUS:85052730374
SN - 0360-3199
SP - 12309
EP - 12314
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
ER -