We report here a systematic synthesis and characterization of aligned R-Fe2O3 (hematite), -Fe2O3, and Fe3O4 (magnetite) nanorods, nanobelts, and nanowires on alumina substrates using a pulsed laser deposition (PLD) method. The presence of spherical gold catalyst particles at the tips of the nanostructures indicates selective growth via the vapor-liquid-solid (VLS) mechanism. Through a series of...

Synthesis of core–shell nanostructures with magnetic core and zeolitic shell is an ongoing challenge. Herein, a strategy presented for preparation γ-Fe2O3@mesoporous silica (mSiO2) nanoparticles containing ultrasmall domains silicalite-1 in the (γ-Fe2O3@mSiO2/silicalite-1). The consists solid-state reorganization precursor amorphous mSiO2 into using tetrapropylammonium hydroxide (TPAOH) as orga...

The cyclic performance of flexible free-standing graphene-Fe2O3 hybrid sheet is considerably improved and was fabricated by a novel one-step hydrothermal process. X-ray diffraction (XRD), photoelectron spectroscopy (XPS), thermogravimetric (TGA), scanning electron microscopy (SEM), transmission (TEM), electrochemical workstation are performed to characterize the microstructure sheet. At current...

Augmenting the donor density and nanostructure engineering are the crucial points to improve solar water oxidation performance of hematite (α-Fe2O3). This work addresses the sluggish water oxidation reaction associated with hematite photoanode by tweaking its internal porosity. The porous hematite photoanodes are fabricated by a novel synthetic strategy via pulse reverse electrodeposition (PRED...

We describe a visual tracking algorithm for nanoplatform motion analysis, where computer vision and image processing techniques are used as the essential enabling tools for the modeling and design of nanostructure systems. The proposed algorithm robustly tracks multiple nanoplatforms despite their frequent disappearance, Brownian motion, and cluttered low contrast imagery. We have studied quant...

In the last few years nanostructure ZnO is being intensively investigated from the growth control, structural and physical characterization, to device performance. There are now increasing interests in a wide range of ZnO-based ternary compound nanostructures offering even larger possibilities. These compounds can be useful as multi-color light-emitting device, sensors, transparent electrodes, ...