O2-assisted Water Gas Shift reaction over structured Au and Pt catalysts
نویسندگان
چکیده
منابع مشابه
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...
متن کاملCeria - Based Water - Gas Shift Catalysts Active Nonmetallic Au and Pt Species on
, 10857211 (2003); 0 Science et al. Qi Fu, Ceria-Based Water-Gas Shift Catalysts Active Nonmetallic Au and Pt Species on www.sciencemag.org (this information is current as of March 29, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org version of this article at: including high-resolution figures, can be found in the online Updated informat...
متن کاملActive nonmetallic Au and Pt species on ceria-based water-gas shift catalysts.
Traditional analysis of reactions catalyzed by supported metals involves the structure of the metallic particles. However, we report here that for the class of nanostructured gold- or platinum-cerium oxide catalysts, which are active for the water-gas shift reaction, metal nanoparticles do not participate in the reaction. Nonmetallic gold or platinum species strongly associated with surface cer...
متن کاملNanostructured Au–CeO2 catalysts for low-temperature water–gas shift
The composite system of nanostructured gold and cerium oxide, with a gold loading 5–8 wt%, is reported in this work as a very good catalyst for low-temperature water–gas shift. Activity depends largely on the presence of nanosized ceria particles. Various techniques of preparation of an active catalyst are disscussed. The presence of gold is crucial for activity below 300 ◦C. A dramatic effect ...
متن کاملIdentification 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...
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ژورنال
عنوان ژورنال: Applied Catalysis B: Environmental
سال: 2016
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2015.12.032