Study of catalytic surface chemistry on alloys is hampered by the need to study alloy catalysis across composition space. Methods based on the use of Composition Spread Alloy Films (CSAFs) enable such studies to span composition space comprehensively. CSAFs are alloy films that have composition gradients parallel to their surfaces. The ability to apply such materials libraries to catalysis requires the development of a suite of capabilities. A tool has been developed that can deposit CSAFs such that the entire ternary alloy composition space, AxByC1-x-y with x = 0 ? 1 and y = 0 ? 1-x, is present on a 14x14 mm2 substrate. These CSAFs can be characterized using an array of spatially resolved methods to determine surface composition, bulk structure and electronic structure of the alloy as functions of bulk composition. In order to correlate these data with catalytic activity, a multichannel microreactor array has been developed to allow reactions to be catalyzed on 100 different compositions of the alloy in parallel. The methods and tools for conducting these high throughput studies of catalytic activity will be described with examples of their application.

Tools and methods for high throughput study of alloy catalysis

247th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.