Colloidal platinum nanoparticles dispersed by polyvinylpyrrolidone and poly(diallyldimethylammonium chloride) with high catalytic activity for hydrogen production based on formate decomposition. Issue 16 (15th July 2022)

• Record Type: Journal Article
• Authors: Matsubara, Yasuo; Muroga, Yumiko; Kuwata, Masako; Amao, Yutaka
• Is Part Of: Sustainable energy & fuels. Volume 6:Issue 16(2022)
• Page Start: 3717
• Page End: 3721
• Publication Date: 2022-07-15
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/d2se00865c
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : Effective H2 production based on formate decomposition with colloidal platinum nanoparticles dispersed by polyvinylpyrrolidone and a cationic polymer, poly(diallyldimethylammonium chloride), is accomplished. Abstract : Selective H2 production based on formate decomposition with colloidal platinum nanoparticles dispersed by polyvinylpyrrolidone (PVP) and a cationic polymer, poly(diallyldimethylammonium chloride) (PDADMA) (Pt-PVP/P), is demonstrated. By using Pt-PVP/PDADMA, a substantially higher rate of selective H2 production based on formate decomposition was accomplished compared with that by using Pt-PVP. Notably, the rate of H2 production from an acidic solution, the pH of which was lower than the p K a of formic acid, was drastically improved (8.5 times higher than that by Pt-PVP at pH 2.0). The activation energy for decomposing formate into H2 and CO2 was reduced by up to 38% compared to that by Pt-PVP.