Linear conjugated polymer photocatalysts with various linker units for photocatalytic hydrogen evolution from water.
Lunjie LiuMichał A KochmanWei ZhaoMartijn A ZwijnenburgReiner Sebastian SprickPublished in: Chemical communications (Cambridge, England) (2022)
Polymer photocatalysts have shown potential for light-driven hydrogen evolution from water. Here we studied the relative importance of the linker type in two series of conjugated polymers based on dibenzo[ b , d ]thiophene sulfone and dimethyl-9 H -fluorene. The alkenyl-linked polymers were found to be more active photocatalysts than their alkyl and alkyne-linked counterparts. The co-polymer of dibenzo[ b , d ]thiophene sulfone and 1,2-diphenylethene has a hydrogen evolution rate of 3334 μmol g -1 h -1 and an external quantum efficiency of 5.6% at 420 nm.