期刊
CATALYSIS LETTERS
卷 148, 期 9, 页码 2830-2838出版社
SPRINGER
DOI: 10.1007/s10562-018-2462-9
关键词
Heterogeneous catalysts; Perovskite; Palludium; Water-gas shift; Doping
资金
- National Natural Science Foundation of China (NSFC) [21571183, 51572097]
- Innovation Team Foundation from the Ningbo Science and Technology Bureau [2014B81004, 2016B10005]
A series of La0.1Sr0.9Ti1-xPdxO3 with x up to 0.1 were prepared through a modified sol-gel method. Combining X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Temperature programmed reduction (TPR), we proved that solid solutions formed with a Pd substitution (in the B-sites) of no more than 5 at.%. Further addition of Pd resulted in segregation of PdOx species. An in-depth analysis of in-situ CO adsorption confirmed that the metallic Pd, formed in-situ during the water-gas shift reactions (WGSR), was the major contributor for this reaction. [GRAPHICS] .
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