Design of a High Throughput 25‐Well Parallel Electrolyzer for the Accelerated Discovery of CO2 Reduction Catalysts via a Combinatorial Approach |
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| Authors: | Tram Dang Richard Ramsaran Sayak Roy Jesse Froehlich Joseph Wang Clifford P Kubiak |
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| Institution: | 1. Materials Science and Engineering, University of California – San Diego, 9500 Gilman Drive MC 0418, La Jolla, California 92093, USA;2. Department of Chemistry and Biochemistry, University of California – San Diego, 9500 Gilman Drive MC 0358, La Jolla, California 92093, USA;3. Department of Nanoengineering, University of California – San Diego, 9500 Gilman Drive MC 0358, La Jolla, California 92093, USA |
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| Abstract: | A combinatorial approach is described for screening homogeneous CO2 reduction electrocatalysts by means of a high‐throughput 25‐well parallel electrolyzer. Active catalysts were then screened by three methods: (1) the presence of CO gas in the electrolyzer head space; (2) a pH change for the individual solutions before and after bulk electrolysis due to proton consumption during CO2 reduction; and (3) other physical attributes. Based on these screening methods, two solutions out of the 25 were selected for further study. One out of two selected solutions, nickel cyclam, a well‐known CO2 reduction electrocatalyst, was correctly identified to be the most active. |
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| Keywords: | High‐throughput screening CO2 reduction Homogeneous catalysis |
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