Structural aspects of PtSn/γ-Al2O3 catalysts prepared through surface-controlled reactions: Behavior in the water denitrification reaction

Authors:  María A. Jaworski, Virginia Vetere, Hernán P. Bideberripe, Guillermo J. Siri, Mónica L. Casella

Abstract:
This research focuses on the controlled preparation and characterization of PtSn/-Al₂O₃ catalysts and their activity and selectivity in water denitrification by reduction of NO₃ − and NO₂ − ions with hydrogen. The bimetallic PtSn catalysts were active in the hydrogenation of both NO₃ − and NO₂ − and the amount of Sn added had a pronounced influence on the activity of the catalysts, being PtSn_0.25 catalyst the one with the best performance. An explanation for this behavior is given in terms of the electronic and geometric effects that the addition of tin exerts on Pt.

Keywords:
Nitrate
Nitrite
Water denitrification
PtSn catalysts
Organometallic chemistry

Published in: Applied catalysis A: General  (Volume 453, Pages 1-402, 26 February 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Structural aspects of PtSn/γ-Al2O3 catalysts prepared through surface-controlled reactions: Behavior in the water denitrification reaction

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