The rise of metal halide perovskite based solar cell with efficiencies exceeding 25% has rejuvenated interest in nanoscale perovskite materials for photocatalysis. The metal halide perovskites are analogous to metal chalcogenides in the sense that they absorb in the visible region, their bandgap can be tuned through anion composition and size and shape can be readily varied using hot injection synthetic approach. However, the question regarding their competitiveness among other available catalysts/photocatalysts have not been weighed in.  Majority of photocatalytic reactions reporting various chemical transformations and solar fuel generation do not address the issue of long term stability .Their susceptibility to coexisting ions, solvent polarity and reaction conditions to undergo chemical transformation pose a challenge for practical applications. Any release of lead ions during a photocatalytic reaction would add additional complexity of waste treatment and environmental concerns. New synthetic strategies such as protection through a stable organic or inorganic shell are needed to overcome some of the challenges. The current status of perovskite photocatalysis will be discussed highlighting some key examples of electron transfer processes.

Perovskite photocatalysis: A long way away

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

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