Per accedir als documents amb el text complet, si us plau, seguiu el següent enllaç: http://hdl.handle.net/2117/20975

Catalytic activity and characterization of Fe-Zn-Mg-Al hydrotalcites in biohydrogen production
Wimonsong, Pornthip; Llorca Piqué, Jordi; Nitisoravut, Rachnarin
Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques; Universitat Politècnica de Catalunya. GREENER - Grup de recerca d´estudis energètics i de les radiacions
Four different M2þeMgeAl hydrotalcite (HT) materials were investigated for their effect on biohydrogen enhancement, where M2þ is Fe and/or Zn. HTs were synthesized by the coprecipitation method and characterized by infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD). The effect of FeeZneMgeAl HTs dose (0e833 mg/L) on hydrogen production was investigated in batch tests using sucrose-fed anaerobic mixed culture at 37 C. The best catalytic activity was observed on MgeAl HT at 167 mg/L with the maximum hydrogen yield of 2.30 0.37 mol H2/mol sucrose, which was 44% higher than the control. The major metabolites detected in the test were acetic acid (3.6 g/L), butyric acid (4.1 g/L), and lactic acid (0.5 g/L). The basic properties of the different catalysts played an important role in stimulating or inhibiting the activity of hydrogen producing bacteria. Calcined MgeAl HT did not promote biohydrogen production, suggesting that the catalytic enhancement was related to immobilization of bacteria in the electrostatically charged HT interlayers.
Àrees temàtiques de la UPC::Física::Física de l'estat sòlid
Àrees temàtiques de la UPC::Energies
Hydrogen
Catalysts
Bacteria immobilization
Dark fermentation
Metal ion
Nanoparticles
Hidrogen
Catalitzadors
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
Article
         

Mostra el registre complet del document

Documents relacionats

Altres documents del mateix autor/a

Amoroso, Francesco; Colussi, Sara; Del Zotto, Alessandro; Llorca Piqué, Jordi; Trovarelli, Alessandro
Colussi, Sara; Trovarelli, Alessandro; Vesselli, Erik; Baraldi, Alessandro; Comelli, Giovanni; Groppi, Gianpiero; Llorca Piqué, Jordi
Trigo Rodríguez, Josep Maria; Llorca Piqué, Jordi; Madiedo, J. M.; Tancredi, Gonzalo; Edwards, Wayne; Rubin, Alan E.; Weber, Patrick
Modesto Lopez, Luis B; Chimentao, Ricardo J; Alvarez, Mayra G; Rosell Llompart, Joan; Medina Cabello, Francisco; Llorca Piqué, Jordi