RT journal article
T1 In Situ DRIFTS-MS Methanol Adsorption Study onto Supported NiSn Nanoparticles: Mechanistic Implications in Methanol Steam Reforming
A1 Bobadilla, Luis F.
A1 Azancot, Lola
A1 Ivanova, Svetlana
A1 Delgado Jaén, Juan José
A1 Romero-Sarria, Francisca
A1 Centeno, Miguel A.
A1 Roger, Anne-Cécile
A1 Odriozola, José A.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 NiSn nanoparticles
K1 methanol steam reforming
K1 mechanism
K1 in situ DRIFTS-MS
AB Methanol adsorption over both supported NiSn Nps and analogous NiSn catalyst prepared by impregnation was studied by in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) to gain insights into the basis of hydrogen production from methanol steam reforming. Different intermediate species such as methoxides with different geometry (bridge and monodentate) and formate species were identified after methanol adsorption and thermal desorption. It is proposed that these species are the most involved in the methanol steam reforming reaction and the major presence of metal-support interface sites in supported NiSn Nps leads to higher production of hydrogen. On the basis of these results, a plausible reaction mechanism was elucidated through the correlation between the thermal stability of these species and the evolution of the effluent gas released. In addition, it was demonstrated that DME is a secondary product generated by condensation of methoxides over the acid sites of alumina support in an acid-catalyzed reaction.
PB MDPI
SN 2079-4991
YR 2021
FD 2021-12
LK http://hdl.handle.net/10498/26450
UL http://hdl.handle.net/10498/26450
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026