title: Scanning droplet cell for high throughput electrochemical and photoelectrochemical measurements.
abstract: High throughput electrochemical techniques are widely applied in material discovery and optimization. For many applications, the most desirable electrochemical characterization requires a three-electrode cell under potentiostat control. In high throughput screening, a material library is explored by either employing an array of such cells, or rastering a single cell over the library. To attain this latter capability with unprecedented throughput, we have developed a highly integrated, compact scanning droplet cell that is optimized for rapid electrochemical and photoeletrochemical measurements. Using this cell, we screened a quaternary oxide library as (photo)electrocatalysts for the oxygen evolution (water splitting) reaction. High quality electrochemical measurements were carried out and key electrocatalytic properties were identified for each of 5456 samples with a throughput of 4 s per sample.
authors: Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California 91125, USA. gregoire@caltech.edu
authors: John M
authors: JM
authors: Gregoire
authors: Chengxiang
authors: C
authors: Xiang
authors: Xiaonao
authors: X
authors: Liu
authors: Martin
authors: M
authors: Marcin
authors: Jian
authors: J
authors: Jin