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Title: Simple Flow Through Reaction Cells for in situ Transmission and Fluorescence X-ray Absorption Spectroscopy of Heterogeneous Catalysts

Abstract

We report on the design of both transmission and fluorescence x-ray-absorption spectroscopy cells suitable for in situ characterization of heterogeneous catalysts. The heart of both cells is a quartz tube used to house the catalyst sample. Both cells allow in situ x-ray-absorption fine-structure (XAFS) data to be recorded from -196 to 825 deg. C using a wide range of gas flows at atmospheric pressure. Excellent temperature control is demonstrated with both designs. XAFS data can be recorded over a wide x-ray energy range (2.1-29 keV). These designs are simple, robust, relatively low cost, and, moreover, are reliable and easy to operate. All of the critical components of the transmission reactor can be purchased commercially, with little machining required. The design of the fluorescence reactor requires access to a skilled glass blower.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
914186
Report Number(s):
BNL-78754-2007-JA
Journal ID: ISSN 0034-6748; RSINAK; TRN: US200804%%324
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Rev. Sci. Instrum.; Journal Volume: 77
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; CATALYSTS; SAMPLE HOLDERS; DESIGN; GAS FLOW; X-RAY FLUORESCENCE ANALYSIS; X-RAY SPECTROSCOPY; HETEROGENEOUS CATALYSIS; national synchrotron light source

Citation Formats

Bare,S., Mickelson, G., Modica, F., Ringwelski, A., and Yang, N. Simple Flow Through Reaction Cells for in situ Transmission and Fluorescence X-ray Absorption Spectroscopy of Heterogeneous Catalysts. United States: N. p., 2006. Web. doi:10.1063/1.2168685.
Bare,S., Mickelson, G., Modica, F., Ringwelski, A., & Yang, N. Simple Flow Through Reaction Cells for in situ Transmission and Fluorescence X-ray Absorption Spectroscopy of Heterogeneous Catalysts. United States. doi:10.1063/1.2168685.
Bare,S., Mickelson, G., Modica, F., Ringwelski, A., and Yang, N. Sun . "Simple Flow Through Reaction Cells for in situ Transmission and Fluorescence X-ray Absorption Spectroscopy of Heterogeneous Catalysts". United States. doi:10.1063/1.2168685.
@article{osti_914186,
title = {Simple Flow Through Reaction Cells for in situ Transmission and Fluorescence X-ray Absorption Spectroscopy of Heterogeneous Catalysts},
author = {Bare,S. and Mickelson, G. and Modica, F. and Ringwelski, A. and Yang, N.},
abstractNote = {We report on the design of both transmission and fluorescence x-ray-absorption spectroscopy cells suitable for in situ characterization of heterogeneous catalysts. The heart of both cells is a quartz tube used to house the catalyst sample. Both cells allow in situ x-ray-absorption fine-structure (XAFS) data to be recorded from -196 to 825 deg. C using a wide range of gas flows at atmospheric pressure. Excellent temperature control is demonstrated with both designs. XAFS data can be recorded over a wide x-ray energy range (2.1-29 keV). These designs are simple, robust, relatively low cost, and, moreover, are reliable and easy to operate. All of the critical components of the transmission reactor can be purchased commercially, with little machining required. The design of the fluorescence reactor requires access to a skilled glass blower.},
doi = {10.1063/1.2168685},
journal = {Rev. Sci. Instrum.},
number = ,
volume = 77,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}