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Topics in Catalysis

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29-10-2018 | Original Article

Tin Dioxide as an Alternative to Platinum Promoter in Palladium-Catalyzed Wet Lean Methane Combustion

Authors: Hanieh Nassiri, Robert E. Hayes, Natalia Semagina

Published in: Topics in Catalysis | Issue 1-4/2019

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Abstract

Tin dioxide was assessed as a substitute for part of platinum-group metals in a catalytic converter, and the activity of various Pd and PdPt catalysts was compared on conventional alumina support and SnO₂ in wet lean methane combustion. Remarkably, Pd-only catalysts supported on SnO₂ revealed higher activity compared with PdPt/Al₂O₃. The catalysts benefit from the strong metal-support interactions and high oxygen mobility in SnO₂ with dual Sn⁴⁺/Sn²⁺ valency. SnO₂ can thus be considered a potential replacement of Pt in a catalytic converter for a natural gas vehicle under lean burn conditions. This potentially decreases the price of the converter and eliminates the need for scarce and expensive Pt.

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Title: Tin Dioxide as an Alternative to Platinum Promoter in Palladium-Catalyzed Wet Lean Methane Combustion
Authors: Hanieh Nassiri
Robert E. Hayes
Natalia Semagina
Publication date: 29-10-2018
Publisher: Springer US
Published in: Topics in Catalysis / Issue 1-4/2019
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI: https://doi.org/10.1007/s11244-018-1084-1

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