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Fundamental Investigations of Heterogeneous Catalysis Using Isotopic Transient Kinetic Analysis - (Scope 90001)

EMSL Project ID


This project is aimed at developing a new capability at PNNL for performing detailed transient kinetics studies to probe catalytic reaction mechanisms, while simultaneously spectroscopically characterizing the chemical state of the catalyst surfaces. The core capability developed under this project will enable the development of a steady-state isotopic transient kinetic analysis capability to enable a kinetic description of processes to be modeled. Our proposed approach is unique in that we propose an in situ spectroscopic probe of adsorbed reactants/ intermediates/products on the catalyst materials. In principle, the spectroscopic interrogation will enable us to postulate feasible reaction mechanisms, whereas the steady-state isotopic transient kinetic analysis will enable us to test these proposed mechanisms by providing quantitative kinetic rate parameters. Contact Rob Disselkamp, PI, for additional information. Assumption: This project will develop new and unique research capabilities for performing detailed transient kinetics measurements coupled to simultaneous spectroscopic interrogation of heterogeneously catalyzed reactions.

Project Details

Project type
Exploratory Research
Start Date
End Date


Principal Investigator

Robert Disselkamp
Pacific Northwest National Laboratory

Team Members

Charles Mims
University of Toronto

Yong Yang
University of Washington

Ja Hun Kwak
Ulsan National Institute of Science and Technology

Janos Szanyi
Pacific Northwest National Laboratory

Charles Campbell
University of Washington

Related Publications

Design and operating characteristics of a transient kinetic analysis catalysis reactor system employing in situ transmission Fourier transform infrared
Yang Y, C Mims, RS Disselkamp, D Mei, JH Kwak, J Szanyi, CHF Peden, and CT Campbell. 2008. "Isotope effects in methanol synthesis and the reactivity of copper formates on a Cu/SiO2 catalyst." Catalysis Letters 125(3-4):201-208. doi:10.1007/s10562-008-9592-4