Photoactivity of MWCNTs modified α-Fe2O3 photoelectrode towards efficient solar water splitting

Snigdha Rai, Ashi Ikram, Sonal Sahai, Sahab Dass, Rohit Shrivastav and Vibha R. Satsangi

Renewable Energy, 2015, vol. 83, issue C, 447-454

Abstract: MWCNTs (Multiwalled Carbon Nanotubes) modified α-Fe2O3 (hematite) photoelectrodes have been investigated for their possible application in hydrogen generation via photoelectrochemical (PEC) splitting of water. Enhanced photoresponse seen in comparison to the pristine α-Fe2O3 films is credited to the effective charge facilitation and charge separation provided by MWCNT conducting support. 0.2 wt% MWCNTs modified α-Fe2O3 thin film exhibited the maximum photocurrent density of 2.8 mA/cm2 at 0.75 V/SCE. Measured values of flat band potential, donor density, resistance, Applied bias photon-to-current efficiency (ABPE) and Incident-photon-to current-conversion efficiency (IPCE) support the observed enhancement in photocurrent.

Keywords: Hematite; Multiwalled carbon nanotubes; Photoelectrochemical; Hydrogen (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:83:y:2015:i:c:p:447-454

DOI: 10.1016/j.renene.2015.04.053

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