Dynamic structure of active sites in ceria-supported Pt catalysts for the water gas shift reaction
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 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...
متن کاملGold–ceria catalysts for low-temperature water-gas shift reaction
Nanostructured Au–ceria is a promising new catalyst for low-temperature water-gas shift (LTS). Preparation, characterization, and catalytic properties of this material are reported in this paper. Gold–ceria was prepared by deposition–precipitation (DP), coprecipitation (CP), and gelation methods. The gold loading was varied between 1 and 8.3 at.%, while lanthanum used as a dopant in ceria, was ...
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...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2021
ISSN: 2041-1723
DOI: 10.1038/s41467-021-21132-4