Ghosh, Srabanti and Rashmi, Divya and Bera, Susmita and Basu, Rajendra Nath (2019) Functionalized conjugated polymer with plasmonic Au nanoalloy for photocatalytic hydrogen generation under visible-NIR. International Journal of Hydrogen Energy, 44 (26). pp. 13262-13272. ISSN 0360-3199

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Gold based multimetallic nanoalloys decorated on conjugated polymer nanofibers have been prepared using a greener approach without using any reducing agent. The as-prepared nanohybrids exhibited superior catalytic activity for solar hydrogen production under visible light (λ > 420 nm) irradiation and near infrared light irradiation. The UV–Visible diffuse reflectance spectra displayed strong absorption in the visible region which significantly favours the photocatalytic performance. Furthermore, the efficient charge separation suggested by electrochemical impedance measurement and photocurrent response curves for Au 50 Pt 24 Pd 26 /PPy nanohybrids which exhibited significant enhancement in H 2 generation rate compared to Au/PPy nanohybrids. The strong interface contact between Au nanoalloys and PPy nanofibers play an important role for the migration of electron during catalysis. The Mott–Schottky plot revealed that photo generated charge carrier concentration has been increased for Au 50 Pt 24 Pd 26 /PPy nanohybrids (7.93 × 10 ¹¹ cm ⁻³ ) compare to pure PPy (1.43 × 10 ¹¹ cm ⁻³ ). The present study provides a new prospect for using conducting polymer based hybrid as photocatalysts for efficient solar hydrogen production.

Item Type: Article
Subjects: Electronics
Divisions: Fuel Cell and Battery
Depositing User: Bidhan Chaudhuri
Date Deposited: 29 May 2019 10:24
Last Modified: 29 May 2019 10:24

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