Room-temperature synthesis of TiO 2 nanospheres and their solar driven photoelectrochemical hydrogen production

Vidya Avasare, Zhongai Zhang, Dnyaneshwar Avasare, Ibrahim Khan, Ahsanulhaq Qurashi

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Highly monodisperse and crystalline anatase phase TiO2 nanospheres have been synthesized at room temperature from organometallic precursor, titanocene dichloride and sodium azide. The photoelectrochemical (PEC) water splitting performance on the TiO2 nanospheres was studied under illumination of AM 1.5G. The optimized photocurrent density and photoconversion efficiency of TiO2 NSPs were observed ~0.95mAcm-2 at 1.23V and 0.69%, respectively. The transient photocurrent response measurements on the TiO2 NSPs during repeated ON/OFF visible light illumination cycles at 1.23V vs RHE show that both samples exhibited fast and reproducible photocurrent responses. The TiO2 NSPs show excellent catalytic stability, and significant dark current was not observed even at high potentials (2.0V vs RHE). © 2015 John Wiley & Sons, Ltd.
Original languageEnglish (US)
Pages (from-to)1714-1719
Number of pages6
JournalInternational Journal of Energy Research
Volume39
Issue number12
DOIs
StatePublished - Aug 13 2015

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