dc.contributor
Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques
dc.contributor
Universitat Politècnica de Catalunya. GREENER - Grup de recerca d'estudis energètics i de les radiacions
dc.contributor.author
Aristizabal, A.
dc.contributor.author
Contreras, Sandra
dc.contributor.author
Jiménez Divins, Nuria
dc.contributor.author
Llorca Piqué, Jordi
dc.contributor.author
Medina, Francisco
dc.date.issued
2012-10-30
dc.identifier
Aristizabal, A. [et al.]. Pt-Ag/activated carbon catalysts for water denitration in a continuous reactor: Incidence of the metal loading, Pt/Ag atomic ratio and Pt metal precursor. "Applied catalysis B. Environmental", 30 Octubre 2012, vol. 127, p. 351-362.
dc.identifier
https://hdl.handle.net/2117/19716
dc.identifier
10.1016/j.apcatb.2012.08.039
dc.description.abstract
Several Pt–Ag catalysts supported on activated carbon powder were tested in the catalytic reduction of nitrates in a continuous flow reactor. The influence of the noble metal precursor (Pt(NH3)4(NO3)2 or H2PtCl6), the Pt/Ag atomic ratio (0.3, 1.1 and 1.8) and the metal loading (3% or 1% Pt) were studied. The samples were characterized by XRD, TPR, HRTEM, XPS, H2-chemisorption and nitrogen physisorption. The results showed that the most important variables affecting the catalytic activity are the noble metal precursor and the metal loading, whereas the Pt/Ag atomic ratio does not affect significantly the catalytic behavior. The use of H2PtCl6 instead of Pt(NH3)4(NO3)2 as noble metal precursor leads to more active catalysts. The nitrate conversion is enhanced by the high metal loading (3%).
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.rights
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights
Restricted access - publisher's policy
dc.rights
Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.subject
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject
Àrees temàtiques de la UPC::Enginyeria química::Química física
dc.subject
Chemical reactors
dc.subject
Catalytic nitrates reduction
dc.subject
Packed bed reactor
dc.subject
Surface metal chemistry
dc.title
Pt-Ag/activated carbon catalysts for water denitration in a continuous reactor: Incidence of the metal loading, Pt/Ag atomic ratio and Pt metal precursor
