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Updated: May 22, 2026
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
Published on: March 16, 2018
Development of a high-throughput methodology for screening coking resistance of modified thin-film catalysts
Kaijian Yang1, John Bedenbaugh, Hang Li
1Department of Chemical Engineering and Smartstate Center for Strategic Environmental Approaches to the Generation of Electricity (SAGE), University of South Carolina , Columbia, South Carolina 29208, United States.
Abstract:
A high-throughput optical technique has been developed for the rapid screening of coking resistant composition-spread promoted-catalyst libraries during hydrocarbon cracking, in particular for Jet Propellant 8(JP-8) cracking. The libraries are screened by measuring changes in the catalyst's surface color due to the accumulation and burnoff of coke from the surface during JP-8 exposure and catalyst regeneration via oxygen burnoff. This rapid screening method was validated through a comparison of the coking properties of high-surface area powder cracking catalysts, and sputter deposited samples. Experiments on bimetallic (Pt-Gd) catalysts showed systematic trends consistently illustrating the superiority of Pt-Gd alloys to coking due to the presence of gadolinium.
