Block copolymer micelles as efficient colloidal photosensitizers in the light-driven hydrogen evolution reaction

Abstract

Light-driven hydrogen evolution is one key process in the development of sustainable energy schemes. Here we report the covalent embedding of molecular ruthenium photosensitizers within block copolymer micelles, leading to...

Initial Quenching Efficiency Determines Light‐Driven H2 Evolution of [Mo3S13]2− in Lipid Bilayers

“…[20,21] However, the performance of [Mo 3 S 13 ] 2À in heterogenous environments for light-driven H 2 evolution showed promising activity when using soft polymeric materials such as nanoporous polymeric membranes consisting of amphiphilic block copolymers (e. g. P(S-co-I)-b-PDMAEMA), [22] polyampholytic graft copolymers as matrix for TiO 2 /Eosin Y/[Mo 3 S 13 ] 2 À -organic-inorganic hybrid materials, [23] polymeric carbon nitrides, [24] and polymeric micelles. [25] Electrostatic attraction between the negatively charged [Mo 3 S 13 ] 2À and positively charged photosensitizer molecules such as [Ru(bpy) 3 ] 2 + was reported to be beneficial for immobilization into nanoporous polymeric membranes as well as charge transfer dynamics in the light-driven HER. [22] Building on these results, we designed a biomimetic liposome-system with the positively charged and membrane-bound PS 2 + RuC 9 that can electrostatically attract the negatively charged HER catalyst [Mo 3 S 13 ] 2À to perform light-driven H 2 evolution.…”