Sharma, Rishabh and Kodan, Nisha and Singh, Vinod and Sharma, Shailesh Narayan and Sinha, Om Prakash (2019) Enhanced photoelectrochemical performance of TiO2 photoanode decorated with Pd-carbon core shell nanoparticles. Renewable Energy, 134. pp. 1232-1239. ISSN 0960-1481

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In this work, we report enhancement in photoelectrochemical performance of TiO2 photo-anode on coating it with Palladium carbon (Pd-C) core shell nanoparticles. Transmission electron microscopy images confirmed formation of Pd nanoparticle and Pd-C nanoparticles with Pd core surrounded by carbon shell. X-Ray Diffraction analysis confirmed the pure anatase phase of synthesized TiO2 films. Raman spectroscopy revealed graphitic nature of carbon in Pd-C. In comparison to pristine TiO2, quenching in PL intensity of Pd-TiO2& Pd-C-TiO2 sample was observed which indicates lowering of recombination rate of charge carriers, this effect is explained through surface plasmon resonance (SPR) in Pd and Pd-C nanoparticles. Also, SPR in Pd & Pd-C promoted absorption of photons in visible region thus making both Pd-C-TiO2& Pd-TiO2 active in visible region. Finally, graphitic carbon layer over Pd in Pd-C-TiO2 offered an additional advantage over bare Pd in Pd-TiO2 i.e. reducing the charge transfer resistance between electrode and electrolyte under illumination.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Elsevier.
Subjects: Energy Fuels
Depositing User: Mr. Yogesh Joshi
Date Deposited: 06 Mar 2020 10:10
Last Modified: 06 Mar 2020 10:10

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