Biehler Erik, Quach Qui, Huff Clay, Abdel-Fattah Tarek M
Applied Research Center at Thomas Jefferson National Accelerator Facility and Department of Molecular Biology and Chemistry, Christopher Newport University, Newport News, VA 23606, USA.
Materials (Basel). 2022 Apr 6;15(7):2692. doi: 10.3390/ma15072692.
Ultra-small palladium nanoparticles were synthesized and applied as catalysts for a hydrogen evolution reaction. The palladium metal precursor was produced via beta-cyclodextrin as organo-nanocup (ONC) capping agent to produce ultra-small nanoparticles used in this study. The produced ~3 nm nanoparticle catalyst was then characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), and Fourier transform infrared spectroscopy (FTIR) to confirm the successful synthesis of ~3 nm palladium nanoparticles. The nanoparticles' catalytic ability was explored via the hydrolysis reaction of sodium borohydride. The palladium nanoparticle catalyst performed best at 303 K at a pH of 7 with 925 μmol of sodium borohydride having an H generation rate of 1.431 mL min mL. The activation energy of the palladium catalyst was calculated to be 58.9 kJ/mol.
合成了超小钯纳米颗粒，并将其用作析氢反应的催化剂。钯金属前驱体是通过β-环糊精作为有机纳米帽（ONC）封端剂制备的，以生产本研究中使用的超小纳米颗粒。然后通过X射线衍射（XRD）、透射电子显微镜（TEM）、紫外可见光谱（UV-Vis）和傅里叶变换红外光谱（FTIR）对制备的约3纳米纳米颗粒催化剂进行表征，以确认成功合成了约3纳米钯纳米颗粒。通过硼氢化钠的水解反应探索了纳米颗粒的催化能力。钯纳米颗粒催化剂在303K、pH值为7时表现最佳，925微摩尔硼氢化钠的产氢速率为1.431毫升/分钟·毫升。钯催化剂的活化能计算为58.9千焦/摩尔。
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