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Bi modified Pd/SnO2 catalysts for water denitration

Paper ID Volume ID Publish Year Pages File Format Full-Text
48690 46518 2007 8 PDF Available
Title
Bi modified Pd/SnO2 catalysts for water denitration
Abstract

A Pd/SnO2 catalyst was doped with low concentrations of Bi in order to induce selective poisoning of sites on the Pd surface in order to test a hypothesis that specific surface sites are responsible for ammonium formation during the catalytic hydrogenation of nitrates from drinking water. Initial addition of low levels of Bi appeared to selectively titrate high-energy surface Pd atoms located in the high index planes of the Pd crystallites. Addition of Bi had little effect on catalyst activity but modified selectivity profiles of nitrite and ammonium formation.

Keywords
Pd/SnO2; Selective poisoning; Bi; Nitrate reduction; Aqueous; NH4+ formation
First Page Preview
Bi modified Pd/SnO2 catalysts for water denitration
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 73, Issues 1–2, 24 April 2007, Pages 98–105
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis