132876 20260217205511.0 doi 10.1021/acsami.3c15296 sideral 137729 ART-2024-137729 eng Sadhukhan, Rayantan Ultra-Low-Loaded Platinum Bonded Hexagonal Boron Nitride as Stable Electrocatalyst for Hydrogen Generation 2024 Chemical 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. info:eu-repo/grantAgreement/ES/DGA/E13-23R info:eu-repo/grantAgreement/EC/H2020/823717/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM3 This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 823717-ESTEEM3 info:eu-repo/grantAgreement/EC/H2020/881603/EU/Graphene Flagship Core Project 3/GrapheneCore3 This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 881603-GrapheneCore3 info:eu-repo/grantAgreement/ES/MICINN/PID2019-104739GB-I00 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 8.2 2024 NANOSCIENCE & NANOTECHNOLOGY 31 / 147 = 0.211 2024 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 83 / 461 = 0.18 2024 Q1 T1 1.921 2024 Materials Science (miscellaneous) 2024 Q1 Nanoscience and Nanotechnology 2024 Q1 Medicine (miscellaneous) 2024 Q1 14.5 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Kumar, Amar Prasanna, Ponnappa K. Guha, Anku Arenal, Raul (orcid)0000-0002-2071-9093 Chakraborty, Sudip Narayanan, Tharangattu N. 16, 7 (2024), 8627-8638 ACS appl. mater. interfaces ACS applied materials & interfaces 1944-8244 6342730 http://zaguan.unizar.es/record/132876/files/texto_completo.pdf Versión publicada 3211981 http://zaguan.unizar.es/record/132876/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:132876 articulos driver 2026-02-17-20:25:09 ARTICLE