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High Throughput In Situ XAFS Screening of Catalysts

DOI: 10.1063/1.2644604 DOI Help

Authors: Nikolaos Tsapatsaris (University of Manchester) , Angela M. Beesley (University of Manchester) , Norbert Weiher (University of Manchester) , Helen Tatton (University of Manchester) , Andy J. Dent (Diamond Light Source Ltd) , Frederick J. W. Mosselmans (Diamond Light Source) , Moniek Tromp (Southampton University) , Sergio Russu (Southampton University) , John Evans (University of Southampton, Diamond Light Source) , Ian Harvey (Daresbury Laboratory) , Shusaku Hayama (Diamond Light Source) , Sven L. M. Schroeder (The University of Manchester)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: 13th International Conference on X-ray Absorption Fine Structure (XAFS13)
Peer Reviewed: No

State: Published (Approved)
Published: July 2006

Abstract: We outline and demonstrate the feasibility of high?throughput (HT) in situ XAFS for synchrotron radiation studies. An XAS data acquisition and control system for the analysis of dynamic materials libraries under control of temperature and gaseous environments has been developed. The system is compatible with the 96?well industry standard and coupled to multi?stream quadrupole mass spectrometry (QMS) analysis of reactor effluents. An automated analytical workflow generates data quickly compared to traditional individual spectrum acquisition and analyses them in quasi?real time using an HT data analysis tool based on IFFEFIT. The system was used for the automated characterization of a library of 91 catalyst precursors containing ternary combinations of Cu, Pt, and Au on ??Al2O3, and for the in situ characterization of Au catalysts supported on Al2O3 and TiO2.

Journal Keywords: Absorption Spectroscopy; Aluminium Oxides; Catalysts; Control Systems; Copper; Data Acquisition; Data Analysis; Fine Structure; Gold; Mass Spectroscopy; Platinum; Platinum Compounds; Quadrupoles; Synchrotron Radiation; Titanium Oxides; X-Ray Spectra; X-Ray Spectroscopy

Subject Areas: Chemistry

Facility: Daresbury Laboratory

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