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Title: Evolution and Enabling Capabilities of Spatially Resolved Techniques for the Characterization of Heterogeneously Catalyzed Reactions

Journal Article · · ACS Catalysis
 [1];  [2];  [3];  [4];  [4];  [3];  [4];  [3];  [4];  [4];  [3]
  1. School of Mechanical and Aerospace Engineering, Queen’s University Belfast, Ashby Building, Stranmillis Road, Belfast BT9 5AH, United Kingdom
  2. Department of Chemical and Materials Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
  3. Fuels, Engines and Emissions Research Center, Oak Ridge National Laboratory, P.O. Box 2008, MS-6472, Oak Ridge, Tennessee 37831-6472, United States
  4. School of Chemistry and Chemical Engineering, Queen’s University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom

The development and optimization of catalysts and catalytic processes requires knowledge of reaction kinetics and mechanisms. In traditional catalyst kinetic characterization, the gas composition is known at the inlet, and the exit flow is measured to determine changes in concentration. As such, the progression of the chemistry within the catalyst is not known. Technological advances in electromagnetic and physical probes have made visualizing the evolution of the chemistry within catalyst samples a reality, as part of a methodology commonly known as spatial resolution. Herein, we discuss and evaluate the development of spatially resolved techniques, including the evolutions and achievements of this growing area of catalytic research. The impact of such techniques is discussed in terms of the invasiveness of physical probes on catalytic systems, as well as how experimentally obtained spatial profiles can be used in conjunction with kinetic modeling. Moreover, some aims and aspirations for further evolution of spatially resolved techniques are considered.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
Vehicle Technologies Office; AC05-00OR22725
OSTI ID:
1237385
Alternate ID(s):
OSTI ID: 1236596
Journal Information:
ACS Catalysis, Journal Name: ACS Catalysis Vol. 6 Journal Issue: 2; ISSN 2155-5435
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

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