Water gas shift reaction for CeO2-supported Pt catalyst occurs at Pt perimeter

Spectrokinetic investigation of reverse water-gas-shift reaction intermediates over a Pt/CeO2 catalyst

Water-gas Shift Reaction over Ceria-promoted Pt catalysts

Introduction The fuel processor in which hydrocarbon fuels can be converted into hydrogen has recently attracted much attention as a result of the advancement in the fuel cell technology. In a fuel processor, the water-gas shift (WGS) reaction plays a crucial role in the transformation of CO, a well-known poisonous gas to electrode of fuel cell, into hydrogen through reaction with steam. In WGS...

Fabrication of CeO2 nanotube supported Pt catalyst encapsulated with silica for high and stable performance.

This communication describes the fabrication of Pt/CeO2 nanotube@SiO2 core-shell catalysts applied to highly efficient water-gas shift reaction, where the initial CO conversion is 30.2% at 250 °C. Pt/CeO2 nanotube@SiO2 core-shell catalysts show outstanding thermal stability, even after accelerated aging under reaction conditions at 450 °C for 6 h, and the morphology is also unchanged after ther...

Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts.

Identification and characterization of catalytic active sites are the prerequisites for an atomic-level understanding of the catalytic mechanism and rational design of high-performance heterogeneous catalysts. Indirect evidence in recent reports suggests that platinum (Pt) single atoms are exceptionally active catalytic sites. We demonstrate that infrared spectroscopy can be a fast and convenie...

NOx Selective Catalytic Reduction over Pt Supported Catalyst Promoted by Zeolite and CeO2-ZrO2

The emission control of NOx in exhaust gases is one of the greatest engineering challenges to extend the practical and commercial application of diesel and lean burn engines. One solution is selective NOx reduction using hydrocarbons in an oxidizing atmosphere. We mainly focused on catalytic reactions under temperature excursion because of the resemblance to conditions prevailing in real automo...