Effect of ethylene glycol functionalization on a CeO2-SiO2 support for Ni catalysts applied in the ethanol steam reforming

MARCELA JARAMILLO; LAURA CORNAGLIA; JOHN MÚNERA

Workshop; Work shop Argentine on Heterogenus Catalysis; 2023

Catalysts based on non-noble metals like Ni are considered an interesting alternative asan active phase in the steam ethanol reforming (SER) reaction since they have high catalyticactivity and low cost compared to other metals. Nevertheless, the main cause of deactivationin this catalyst type is carbon deposition [2]. To improve the catalytic properties, it has beensuggested to use supports that provide a higher interaction with the active phase, a highspecific surface, and promote the oxidation of carbonaceous deposits [3]. Furthermore, it has been reported that increasing the concentration of Si-OH sites by treating silica with ethylene glycol (EG) allows the formation of smaller supported metal particles with high reducibility [4].Thus, in this work, the EG-modified Ni/CeO2-SiO2(EG) catalyst was synthesized and compared with the unfunctionalized material in the ethanol steam reforming reaction for hydrogen production.