Functionalised graphite supports enhance nanoparticle catalysed water electrolysis Reece Paterson 1 , Casey Dixon 2 , Simon Doherty 2 , Mohamed Mamlouk 1 1 School of Engineering, Newcastle University, Newcastle upon Tyne, UK, 2 School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK The incorporation of surface ligands or heteroatom donors has emerged as an attractive approach towards tuning the activity of metal catalysts via the manipulation of surface electronic properties. There are a growing number of examples that explore this phenomenon in the area of thermal catalysis; [1] however, for electrocatalysis, examples of ligand-directed tuning of a metal's surface electronic properties, and thus catalytic activity, are less established. [2] Here, a series of graphite samples have been functionalised with pyrene-based ligands which were then used as supports for the synthesis of platinum nanoparticles. The graphite supported platinum materials were then screened as electrocatalysts for the hydrogen evolution reaction where activity was assessed as a function of the pyrene-based ligand. How themetal-ligand interaction influences catalytic activity will be deconvoluted using solid- state NMR, XPS, and in-situ Raman spectroscopy. References 1. R. Paterson, et al., Chem. Commun., 2023, 59 , 13470-13473 2. M. J. Gómez, et al., ACS Omega, 2019, 4 , 2206−2216
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