Biomass derived carbon/platinum nanoparticles as electrocatalyst for the hydrogen evolution

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 7, 2025

Abstract Green hydrogen is gaining a significant attention in the transition to sustainable energy and achieving net-zero emissions. Platinum-based catalysts are highly regarded production, particularly due their efficiency water electrolysis. Platinum nanoparticles (Pt NPs) successively prepared by microwave-assistant citrate method on biomass-based support, characterized X-rays diffraction, scanning transmission electron microscopy. The chelation gelation resulted using citric acid during synthesis lead formation of stabilized dispersed Pt NPs carbon support. electrocatalytic activity for evolution reaction (HER) examined cathodic linear polarization impedance spectroscopy. A high catalytic performance shown sample, as indicated calculated exchange current density 5.3 mA/cm 2 , activation energy, 38.13 kJ/mol. HER follows Volmer/Tafel mechanism with order unity. Impedance spectra confirms decrease total impedance, pore resistance, charge-transfer increasing applied overpotential. proposed offers green, economic, efficient route preparing precious metals used applications.

Язык: Английский

Green Strategies for Chromium Detoxification in Tannery Effluents: Adsorption and Bioconversion with Portieria hornemannii

Environmental Technology & Innovation, Год журнала: 2025, Номер unknown, С. 104151 - 104151

Опубликована: Март 1, 2025

Язык: Английский