Venkateswarlu, Sada Kim, Sooyeon Balamurugan, Mani Son, Younghu Yoon, Minyoung Nam, Ki Tae Han, Sang Soo Kim, Myung Jong 2024-02-13T05:30:04Z 2024-02-13T05:30:04Z 2024-02-13 2024-05 0926-3373 https://pubs.kist.re.kr/handle/201004/148609 An in-situ growth of icosahedral (IC) Pd nanoparticles (NPs) on boron nitride nanotubes (BNNTs) is explored with an external surfactant and reducing agent-free strategy. The IC-Pd@BNNT catalysts show an ultrahigh current density of over - 1000 mA cm-2 with a low overpotential of 199 mV for the hydrogen evolution reaction (HER). At - 20 mA cm-2, the overpotential was as low as 15.7 mV in an acidic medium, which is superior than commercial Pd/C (62.6 mV), and Pt/C (29.4 mV). Moreover, the HER activity of the IC-Pd@BNNT catalysts is maintained even after an accelerated durability test of 40,000 cycles, indicating that the BNNTs are served as a durable support, maintaining the structural integrity of the catalyst. Density functional theory (DFT) calculations confirm that the IC-Pd on the BNNT support with vacancy defects is highly stable and HER active. From the Gas chromatography H2 gas was quantified, and the Faradaic efficiency was achieved to 98.96%. English Elsevier BV Boron nitride nanotubes supported icosahedral Pd nanoparticles: Enabling ultrahigh current density-superior hydrogen evolution activity and theoretical insights Article 10.1016/j.apcatb.2023.123609 1 Applied Catalysis B: Environment and Energy, v.345 Applied Catalysis B: Environment and Energy 345 N scie scopus 001153528600001 2-s2.0-85181809746 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article FUNCTIONAL THEORY OXYGEN REDUCTION CARBON SURFACE ALLOY Boron nitride nanotubes Icosahedral Pd nanoparticles Solvothermal synthesis Hydrogen evolution reaction Density functional theory