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Highlight Lecture

WEB Visible-light Active Photoelectrocatalysts for Solar Hydrogen Production

Thursday (24.09.2020)
11:20 - 11:35 Z: Special Symposia I
Part of:


Metal oxide nanostructures with hetero-contacts and phase boundaries offer unique platform for designing materials architectures for energy harvesting applications. As viable alternative to water electrolysis, photoelectrochemical (PEC) water splitting has emerged as a competitive technology being capable of converting solar energy directly into chemical energy using stable and efficient photocatalysts for solar hydrogen production. Nanostructured metal oxides and composite materials are promising candidates for effective photoanodes, which are fabricated using CVD, PE-CVD and ALD techniques for producing multilayered electrodes as oxygen evolution reaction catalysts.

 

Besides the size and surface effects, the modulation of electronic behaviour due to junction properties leads to modified surface states that promote selective decomposition of analytes and adsorbates. The growing possibilities of engineering nanostructures in various compositions (pure, doped, composites, heterostructures) and forms has intensified the research on the integration of different functional material units in a single architecture to obtain new photocatalytic materials. In addition, new concepts of enhancing charge transduction by surface functionalization are promising strategies to promote specific chemical interactions, however the challenge related to reproducible synthesis and device integration of nanomaterials persist. This talk will present how chemically grown and designed thin films and bilayers of different metal oxides unfold new material properties, which can be transformed into advanced material technologies.

Speaker:
Prof. Dr. Sanjay Mathur
University of Cologne