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conferenceseries
.com
Joint Conference
July 17-18, 2017 Chicago, USA
International Conference on
DIAMOND AND CARBON MATERIALS & GRAPHENE AND SEMICONDUCTORS
Volume 6, Issue 6 (Suppl)
J Material Sci Eng, an open access journal
ISSN: 2169-0022
Diamond and Carbon 2017 & Graphene 2017
July 17-18, 2017
Aluminum-
α
-hematite nanocomposite films for photo electrochemical applications
Hussein Alrobei
and
Manoj K Ram
University of South Florida, USA
T
he alpha (
α
)–hematite (Fe
2
O
3
) based photoelectrochemical (PEC) devices are attractive due to splitting of water into
hydrogen and oxygen, and it is has been studied extensively due to its bandgap, cost effectiveness, chemical stability and
availability in nature. However,
α
–Fe
2
O
3
shows low carrier diffusion, higher resistivity, low electron mobility and higher
photocorrosion. The mobility and carrier diffusion properties of
α
–Fe
2
O
3
can be improved by transition metal ion doping
or making composite with metal oxide. So, attempt is made to make
α
–Fe
2
O
3
composite with aluminum (Al). Various ratios
of Al with
α
-Fe
2
O
3
composite nanomaterials were synthesized using a sol-gel method. The Al-
α
-Fe2O3 nanomaterial was
characterized using SEM, FTIR and UV-vis techniques and X-ray diffraction, techniques. The cyclic voltammetric study was
performed in three electrode cell where Al-
α
-Fe2O3 worked as working electrode coated on conducting FTO glass plate, steel
as counter and Ag/AgCl as reference electrode to estimate the diffusion coefficient and understanding of electrode/electrolyte
interface. The Al doping has shown changes in the structural, optical, morphological and electrochemical properties of Al-
α
-Fe2O3 compared to pristine
α
-Fe2O3 photocatalyst. The photoelectrochemical properties of Al-
α
-Fe2O3 based electrode has
been understood through band diagrams. The photocurrent and band gap has clearly shown the improved hydrogen generation
using Al-
α
-Fe2O3 photocatalyst.
Biography
Hussein Alrobei is a PhD student under the supervision of Manoj K Ram. He has background in the field of Photo Electrochemical, Advanced Materials, Polymers
and Energy. He has been involved on photo electrochemical properties on various metal oxides, polymers and conducting polymers, and recently his patent on
nano-hybrid structured regioregular polyhexylthiophene blend films for production of photo electrochemical energy has been approved.
alrobei@mail.usf.eduHussein Alrobei et al., J Material Sci Eng 2017, 6:6(Suppl)
DOI: 10.4172/2169-0022-C1-076