3D dendritic α-Fe{sub 2}O{sub 3} nano-architectures: Synthesis and its application on electrochemical non-enzymatic H{sub 2}O{sub 2} sensing

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4917758· OSTI ID:22490292

Saha, B.; Bagani, K.; Roy, M. K.; Jana, S. K.; Banerjee, S. ^[1]; Dey, S.; Kumar, S. ^[2]

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1. Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata-700064 (India)
2. Department of Physics, Jadavpur University, Kolkata -700032 (India)

In this manuscript we have successfully synthesized a large scale 3D dendritic α-Fe{sub 2}O{sub 3} hierarchical structure via a hydrothermal reaction. The crystallinity, composition, purity, morphology of the synthesized α-Fe{sub 2}O{sub 3} are characterized by powder X-ray diffraction (PXRD), field emission scanning electron microscopic (FESEM), energy dispersive X-ray spectroscopic (EDS). FESEM image reveals that the individual α-Fe{sub 2}O{sub 3} dendrite consists of a long central trunk with secondary and tertiary branches. For electrochemical H{sub 2}O{sub 2} sensing we have carried out cyclic voltammetry (CV), amperometric i-t measurement. It has been found that the current density vs. H{sub 2}O{sub 2} concentration calibration curve is linear in nature. The present study reveals that the dendritic α-Fe{sub 2}O{sub 3} hierarchical structure exhibits very sensitive electrochemical sensing capability towards H{sub 2}O{sub 2} reduction.

• OSTI ID: 22490292
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPEROMETRY
CONCENTRATION RATIO
CURRENT DENSITY
DENDRITES
ELECTROCHEMISTRY
FERRITES
FIELD EMISSION
HYDROGEN PEROXIDE
HYDROTHERMAL SYNTHESIS
IRON OXIDES
MORPHOLOGY
POWDERS
REDUCTION
SCANNING ELECTRON MICROSCOPY
VOLTAMETRY
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY