RT Journal Article
T1 The role of nitride species in the gas-phase furfural hydrogenation activity of supported nickel catalysts
A1 Jiménez-Gómez, Carmen Pilar
A1 Defilippi, Chiara
A1 Cecilia-Buenestado, Juan Antonio
A1 Moreno-Tost, Ramón
A1 Maireles-Torres, Pedro Jesús
A1 Giordano, Cristina
K1 Catálisis
K1 Catalizadores
K1 Biomasa - Combustibles
K1 Aldehídos
AB A series of C-rich nickel nitride nanoparticles supported on silica has been prepared by the urea glass route, with urea as nitrogen and carbon source, and characterized by different physico-chemical techniques. They consist of Ni3N nanoparticles of 20-25 nm embedded into a carbonaceous matrix. These catalysts are much more active and stable than a nickel supported silica catalyst, which drastically deactivates. The supported Ni3N catalyst, with a 10 wt.% Ni, maintained a furfural conversion higher than 80% after 5 h of time-on-stream, at 170 ⁰C, with a high WHSV of 6 h-1. Complete initial furfural conversion values were observed at reaction temperatures varying from 170 to 230⁰C, and the selectivity toward furan and furfuryl alcohol (decarbonylation and hydrogenation products, respectively) was tuned by varying this temperature. After the catalytic tests, XPS and XRD have demonstrated that nanoparticles are stable, although carbonaceous deposits were also detected.
PB Elsevier B.V.
YR 2020
FD 2020-03-11
LK https://hdl.handle.net/10630/25028
UL https://hdl.handle.net/10630/25028
LA eng
NO Spanish Ministry of Innovation, Science and Universities (Project RTI2018-094918-B-C44) and FEDER (European Union) funds. J.A.C. thanks University of Malaga for contracts of PhD incorporation
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026