In situ generation of Ni metal nanoparticles as catalyst for H2-rich syngas production from biomass gasification

Richardson, Yohan, Blin, Joël, Volle, Ghislaine, Motuzas, Julius and Julbe, Anne (2010) In situ generation of Ni metal nanoparticles as catalyst for H2-rich syngas production from biomass gasification. Applied Catalysis A: General, 382 2: 220-230. doi:10.1016/j.apcata.2010.04.047


Author Richardson, Yohan
Blin, Joël
Volle, Ghislaine
Motuzas, Julius
Julbe, Anne
Title In situ generation of Ni metal nanoparticles as catalyst for H2-rich syngas production from biomass gasification
Journal name Applied Catalysis A: General   Check publisher's open access policy
ISSN 0926-860X
1873-3875
Publication date 2010-07-15
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.apcata.2010.04.047
Volume 382
Issue 2
Start page 220
End page 230
Total pages 11
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract The strategy of impregnating lignocellulosic biomass with aqueous metal salts solutions was efficiently applied in our group for producing H2-rich gas by pyrolysis of wood at 700 °C. The present work is a thorough study on the formation of nickel metal nanoparticles (NPs) during the pyrolysis of nickel(II) impregnated wood in the temperature range of 400-500 °C. During the wood impregnation step, the numerous oxygenated groups present in the bio-macromolecules act as adsorption sites for metal cations in aqueous medium yielding very high metal precursor dispersion into the wood matrix. During pyrolysis, an amorphous NixOyHz phase is formed which is reduced to metallic nickel (Ni0) by carbon atoms at temperatures below 500 °C, leading to the formation of Ni0 NPs, as demonstrated by XRD, XPS, STEM and temperature-programmed pyrolysis characterizations. These findings reveal that the in situ formed Ni0 nanocrystallites act as the catalytic active phase for enhancing both H2 production and tar conversion during biomass pyrolysis, i.e. during the initial stage of gasification. Potential interests of these in situ generated Ni nanocatalysts for biomass gasification applications are discussed.
Keyword Biomass gasification
Hydrogen
Ni0 nanoparticles
Pyrolysis
Tar
Wood
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 42 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 48 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 26 Mar 2014, 22:06:35 EST by System User on behalf of School of Chemical Engineering