期刊
CHEMISTRYMETHODS
卷 1, 期 3, 页码 162-172出版社
WILEY
DOI: 10.1002/cmtd.202000069
关键词
EXAFS; in situ spectroscopy; platinum catalysts; structure-property relationships; XANES
资金
- NSERC
- NSERC Canada
- U.S. DOE [DEAC02-06CH11357]
- Canadian Light Source
Platinum nanocatalysts have shown high performance in various electrocatalytic reactions, with X-ray absorption spectroscopy being a powerful tool for determining the structure and properties. Insitu measurements offer the unique advantage of real-time characterization results during catalytic reactions.
Platinum nanocatalysts have shown high performance in a wide variety of electrocatalytic reactions, making them the focus of many studies. High quality characterization results are vital for the proper understanding of a catalyst's structure and properties, allowing for further discoveries to be made. X-ray absorption spectroscopy is a powerful characterization tool, permitting both the local structure and electronic properties to be determined for a sample of interest. This can be taken further by collecting insitu measurements, which offer the unique advantage of characterization results collected in real-time while the catalytic reaction is taking place. This review summarizes recent studies which utilized insitu X-ray absorption spectroscopy to characterize platinum nanocatalysts, highlighting the important structural parameters and electronic properties determined under the real catalytic reaction conditions. Specific examples of catalysts for use in the oxygen reduction reaction, chlorine evolution reaction, and carbon monoxide oxidation are discussed in detail. Future prospects for work in this field are also highlighted and discussed.
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