Highly Loaded Carbon Black Supported Pt Catalysts for Fuel Cells

0431235 - ÚCHP 2015 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Kaluža, Luděk - Zdražil, Miroslav - Gulková, Daniela - Vít, Zdeněk - Šolcová, Olga - Soukup, Karel - Maixnerová, Lucie
Highly Loaded Carbon Black Supported Pt Catalysts for Fuel Cells.
Final program. Prague: Orgit, 2014, s. 35. ISBN 978-80-02-02555-9.
[International Congress of Chemical and Process Engineering /21./ - CHISA 2014 and Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction /17./ - PRES 2014. Prague (CZ), 23.08.2014-27.08.2014]
Grant CEP: GA MŠMT(CZ) 7HX13003
GRANT EU: European Commission(XE) 303466 - IMMEDIATE
Institucionální podpora: RVO:67985858
Klíčová slova: pt catalysts * fuel cells * carbon black
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství

The aim of this work was to elucidate on the methods of Pt deposition on carbon black to achieve high loadings of Pt of about 60 wt.% in highly dispersed form. The carbon black supports were characterized by nitrogen physisorption. Platinum was deposited on the supports: from true solutions of H2PtCl6, Pt(C5H7O2)2, Pt(NH3)4(NO3)2, or Pt(NH3)2(NO2)2, and from fine dispersions of Pt(C5H7O2)2, PtO2, Pt(NH3)4(OH)2. Atomic adsorption spectroscopy, AAS, and scanning electron microscopy, SEM, were used for elemental analysis and determination of Pt content. The deposited Pt species were dried, calcined or reduced and were subjected to temperature programmed reduction, TPR. After degassing at increased temperature, the Pt dispersion was determined by hydrogen chemisorption at -60 C.
Trvalý link: http://hdl.handle.net/11104/0235815