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Combining diffuse reflectance infrared spectroscopy (DRIFTS), dispersive EXAFS, and mass spectrometry with high time resolution: Potential, limitations, and application to the study of NO interaction with supported Rh catalysts

DOI: 10.1016/j.cattod.2006.09.034 DOI Help

Authors: Mark A Newton (ESRF) , Andrew Dent (Diamond Light Source) , Steven Fiddy (Daresbury Laboratory) , Bhrat Jyoti (Southampton University) , John Evans (University of Southampton)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Catalysis Today , VOL 126 , PAGES 64-72

State: Published (Approved)
Published: August 2007

Abstract: We describe a new experiment that combines transmission based structural probes, such as dispersive EXAFS (EDE), with diffuse reflectance infrared spectroscopy (DRIFTS) and mass spectrometry (MS), at high time resolution. The potential and limitations of this experiment are discussed, and an example of its application to the study of fundamental steps occurring during gas–solid interactions is given; that of oxidation and reduction of alumina supported Rh at 573 K using NO and H2, and the structural-reactive role of linear (Rh(NO+)) Rh-nitrosyl species within these processes.

Journal Keywords: In Situ; Time Resolved Spectroscopies; Drifts; Dispersive EXAFS;Mass Spectrometry; Qsars; Rhodium; Nanoparticles; Alumina; No Reduction; Selectivity

Subject Areas: Chemistry


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Added On: 11/06/2010 07:56

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