doi:10.1021/acsami.3c15296engSadhukhan, RayantanKumar, AmarPrasanna, Ponnappa K.Guha, AnkuArenal, RaulChakraborty, SudipNarayanan, Tharangattu N.Ultra-Low-Loaded Platinum Bonded Hexagonal Boron Nitride as Stable Electrocatalyst for Hydrogen GenerationART-2024-137729Chemical stability of hexagonal boron nitride (hBN) ultrathin layers in harsh electrolytes and the availability of nitrogen site in hBN to stabilize metals like Pt are used here to develop a high intrinsic activity hydrogen evolution reaction (HER) catalyst having low loaded Pt (5 weight% or <1 atomic%). A catalyst having a nonzero oxidation state for Pt (with a Pt–N bonding) is shown to be HER active even with low catalyst loadings (0.114 mgcm–2). Electronic modification of the shear exfoliated hBN sheets is achieved by Au nanoparticle-based surface decoration (hBN_Au), and further anchoring with Pt develops a catalyst (hBN_Au_Pt) with high turnover frequency for HER (∼15). The hBN_Au_Pt is shown to be a highly durable catalyst even after the accelerated durability test for 10000 cycles and temperature annealing at 100 °C. Density functional theory based calculations gave insights in to the electronic modifications of hBN with Au and the catalytic activity of the hBN_Au_Pt system, in line with the experimental studies, indicating the demonstration of a new class of catalyst system devoid of issues such as carbon corrosion and Pt leaching.2024http://zaguan.unizar.es/record/13287610.1021/acsami.3c15296http://zaguan.unizar.es/record/132876oai:zaguan.unizar.es:132876info:eu-repo/grantAgreement/ES/DGA/E13-23Rinfo:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 823717-ESTEEM3info:eu-repo/grantAgreement/EC/H2020/881603/EU/Graphene Flagship Core Project 3/GrapheneCore3This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 881603-GrapheneCore3info:eu-repo/grantAgreement/ES/MICINN/PID2019-104739GB-I00ACS applied materials & interfaces 16, 7 (2024), 8627-8638All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/closedAccess