Due to the increasing global energy demand and the climate change impact of CO2 from energy production, it is essential to construct clean energy production and storage systems. Photocatalytic evolution of hydrogen from water by visible light serves as a promising and appealing pathway. CdS nanoparticles are good visible light absorbers but not efficient hydrogen evolution catalysts, while Ni2P is shown to be an exceptional electrocatalyst for the hydrogen evolution reaction (HER). Integration of Ni2P nanoparticles with CdS nanoparticles using a sol-gel approach is expected to yield a hybrid system that will enable the efficient transfer of photo-generated carriers on CdS to catalytically active Ni2P sites. In this work, the assembly of pre-formed nanoparticles to make CdS-Ni2P hybrid aerogels will be described and photocatalytic HER data will be presented. The performance of these novel architectures will be compared to CdS nanoparticles and CdS aerogels. The role of interparticle coupling, porosity and surface passivation on catalytic efficiency will also be discussed.

Visible light induced photocatalytic hydrogen evolution using a CdS-Ni2P hybrid aerogel system

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.