A Parallel Optical Screen for the Rapid Combinatorial Electrochromic Analysis of Electrochemical Materials


  • We thank the EPSRC for supporting the work under grant GR/R50639/01, the University of Southampton and Ilika Technologies Ltd for publication costs.


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A high-throughput optical screen designed to reduce costs and accelerate the screening of libraries of electroactive materials, in particular fuel-cell electrocatalysts and battery materials, is presented. The methodology uses an electrochromic film as a counter electrode, and makes use of spatially varying color change across this screening counter electrode as differing amounts of charge are passed across the array during a test reaction (see figure).