نتایج جستجو برای: fe2o3 produced at room temperature

تعداد نتایج: 4179083  

Journal: :Dalton transactions 2018
Jin Woo Park Arunprabaharan Subramanian Mahadeo A Mahadik Su Yong Lee Sun Hee Choi Jum Suk Jang

In this paper, we focus on the controlled growth mechanism of α-Fe2O3 nanostructures via the hydrothermal method. The field emission scanning electron microscopy (FESEM) results reveal that at a lower hydrothermal time, the initial nucleation involves the formation of short and thin β-FeOOH nanorods. The subsequent increase in the hydrothermal time leads β-FeOOH to form thicker and longer nanor...

Journal: :Coatings 2021

In this work, the functional character of complex α-Fe2O3(0001)/SrTiO3(111) and Au(111) islands/α-Fe2O3(0001)/SrTiO3(111) heterostructures has been proven as gas sensors at room temperature. Epitaxial Au islands α-Fe2O3 thin film are grown by pulsed laser deposition on SrTiO3(111) substrates. Intrinsic parameters such composition, particle size epitaxial investigated for their influence sensing...

Journal: :Comptes Rendus Physique 2016

2011
Alex B. F. Martinson Michael J. DeVries Joseph A. Libera Steven T. Christensen Joseph T. Hupp Michael J. Pellin Jeffrey W. Elam

Growing interest in Fe2O3 as a light harvesting layer in solar energy conversion devices stems from its unique combination of stability, nontoxicity, and exceptionally low material cost. Unfortunately, the known methods for conformally coating high aspect ratio structures with Fe2O3 leave a glaring gap in the technologically relevant temperature range of 170-350 C. Here, we elucidate a self-lim...

Journal: :journal of nanostructures 2012
r. raeisi shahraki m. ebrahimi

superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °c without any subsequent calcination. the composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using x-ray diffraction (xrd), field emission scanning electron microscope (fesem), transmission electron microscope (tem), fou...

2017
Muhammad Ikram-Ul-Haq Partha Sarathi Mukherjee Rita Khanna

Light-weight ferro-aluminium alloys are finding increasing application in the transport sector to reduce overall weights, energy costs and CO2 emissions. As the primary production processes of both Fe and Al are among the most energy-intensive industrial processes in the world, there is an urgent need to develop alternate routes for producing Fe-Al alloys. Our group has successfully produced th...

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