Plasmonic Bi nanoparticle decorated BiVO4/rGO as an efficient photoanode for photoelectrochemical water splitting

Subramanyam, Palyam and Khan, Tanmoy and Ch, Subrahmanyam and et al, . (2020) Plasmonic Bi nanoparticle decorated BiVO4/rGO as an efficient photoanode for photoelectrochemical water splitting. International Journal of Hydrogen Energy, 45 (13). pp. 1-9. ISSN 0360-3199

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Abstract

We report the application of plasmonic Bi nanoparticles supported rGO/BiVO4 anode for photoelectrochemical (PEC) water splitting. Nearly, 2.5 times higher activity was observed for Bi-rGO/BiVO4 composite than pristine BiVO4. Typical results indicated that Bi-rGO/BiVO4 exhibits the highest current density of 6.05 mA/cm2 at 1.23 V, whereas Bi–BiVO4 showed the current density of only 3.56 mA/cm2. This enhancement in PEC activity on introduction of Bi-rGO is due to the surface plasmonic behavior of BiNPs, which improves the absorption of radiation thereby reduces the charge recombination. Further, the composite electrode showed good solar to hydrogen conversion efficiency, appreciable incident photon-to-current efficiency and low charge transfer resistance. Hence, Bi-rGO/BiVO4 provides an opportunity to realize PEC water splitting.

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IITH Creators:

IITH Creators	ORCiD
Ch, Subrahmanyam	https://orcid.org/0000-0002-2643-3854

Item Type:

Article

Additional Information:

PS thanks CSIR for a senior research fellowship. G.N.S thanks DST-Inspire (Reg No. IF170949), New Delhi, India for the award of research fellowship.

Uncontrolled Keywords:

Bismuth nanoparticles; Charge transfer resistance; Charge transportation; Incident photon-to-current efficiencies; Photoelectrochemical water splitting; Reduced graphene oxides; Solar-to-hydrogen conversions; Water splitting

Subjects:

Chemistry

Divisions:

Department of Chemistry

Depositing User:

Team Library

Date Deposited:

27 Sep 2019 07:20

Last Modified:

15 Nov 2022 12:14

URI:

http://raiithold.iith.ac.in/id/eprint/6396