@article{787a14230f904ddd8234f9c24cc971af,
title = "The Effect of Residual Palladium Catalyst Contamination on the Photocatalytic Hydrogen Evolution Activity of Conjugated Polymers",
abstract = "The effect of residual Pd on hydrogen evolution activity in conjugated polymer photocatalytic systems is systematically investigated using colloidal poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) nanoparticles as a model system. Residual Pd, originating from the synthesis of F8BT via Pd catalyzed polycondensation polymerization, is observed in the form of homogeneously distributed Pd nanoparticles within the polymer. Residual Pd is essential for any hydrogen evolution to be observed from this polymer, and very low Pd concentrations (<40 ppm) are sufficient to have a significant effect on the hydrogen evolution reaction (HER) rate. The HER rate increases linearly with increasing Pd concentration from <1 ppm to approximately 100 ppm, at which point the rate begins to saturate. Transient absorption spectroscopy experiments support these conclusions, and suggest that residual Pd mediates electron transfer from the F8BT nanoparticles to protons in the aqueous medium.",
keywords = "hydrogen evolution, organic, photocatalysis, polymers, water splitting",
author = "Jan Kosco and Michael Sachs and Robert Godin and Mindaugas Kirkus and Laia Francas and Matthew Bidwell and Muhammad Qureshi and Dalaver Anjum and Durrant, {James R.} and Iain McCulloch",
note = "Funding Information: The authors acknowledge funding from KAUST and BASF, as well as EPSRC Project EP/G037515/1, EP/M005143/1, EC FP7 Project SC2 (610115), and EC H2020 Project SOLEDLIGHT (643791). J.R.D. acknowledges support from ERC AdG Intersolar (291482) and M.S. thanks the Imperial College President{\textquoteright}s Ph.D. Scholarship scheme. R.G. is grateful to FRQNT for a postdoctoral award. L.F. thanks the EU for a Marie Curie fellowship (658270). Funding Information: The authors acknowledge funding from KAUST and BASF, as well as EPSRC Project EP/G037515/1, EP/M005143/1, EC FP7 Project SC2 (610115), and EC H2020 Project SOLEDLIGHT (643791). J.R.D. acknowledges support from ERC AdG Intersolar (291482) and M.S. thanks the Imperial College President's Ph.D. Scholarship scheme. R.G. is grateful to FRQNT for a postdoctoral award. L.F. thanks the EU for a Marie Curie fellowship (658270). Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2018",
month = dec,
day = "5",
doi = "10.1002/aenm.201802181",
language = "British English",
volume = "8",
journal = "Advanced Energy Materials",
issn = "1614-6832",
publisher = "John Wiley and Sons Inc.",
number = "34",
}
