The development of an efficient, stable photoanode to provide protons and electrons to the (photo)cathode remains a primary materials challenge in the establishment of a scalable technology for artificial photosynthesis. The typical photoanode architecture consists of a semiconductor light absorber coated with a metal oxide that serves a combination of functions, including corrosion protection, electrocatalysis, light trapping, hole transport, and elimination of deleterious surface recombination sites. To provide a more efficient exploration of metal oxide coatings for a given light absorber, we introduce a high throughput methodology wherein a uniform BiVO4 library is coated with multi-metal oxide coatings.  This presentation will focus on the variation in performance and photo-response of integrated photoanodes consisting of BiVO4 coated with a sputter deposited Fe-Ce oxide film as a function of composition and loading.  Parallel photoanode libraries were prepared and evaluated at pH 13 and pH 9.<br/>

Development of solar fuels photoanodes through combinatorial integration of multifunctional Fe-Ce oxide coatings on BiVO4 as a function of coating composition, loading, and electrolyte

255th National Meeting (2018)

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