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Related papers: Fe2O3/ Co3O4 composite nanoparticle ethanol sensor

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Magnetic nanoparticles (NP) of magnetite (Fe3O4) coated with oleic acid (OA) and dodecanoic acid (DA) were synthesized and investigated through Transmission Electron Microscopy (TEM),magnetization M, and ac magnetic susceptibility…

Mesoscale and Nanoscale Physics · Physics 2010-04-14 V. B. Barbeta , R. F. Jardim , P. K. Kiyohara , F. B. Effenberger , L. M. Rossi

Nanocomposite matrices of silver/poly(3-hexylthiophene) (P3HT) were prepared in ultrahigh vacuum through vapor-phase co-deposition. Change in microstructure, chemical nature and electronic properties with increasing filler (Ag) content were…

Materials Science · Physics 2011-06-28 L. Scudiero , Haoyan Wei , Hergen Eilers

This article reports a concept of heat-induced topological modifications of non-layered WO 3 followed by successful synthesis of oxygen-vacant more-porous nanosheets with exposed active (002) facet. Experimental measurements and Density…

One-dimensional Ni/Ni3C core-shell nanoball chains with an average diameter by around 30 nm were synthesized by means of a mild chemical solution method using a soft template of trioctylphosphineoxide (TOPO). It was revealed that the…

Materials Science · Physics 2015-05-13 Wei Zhou , Lin He , Rongming Wang , Kun Zheng , Lin Guo , Chinping Chen , Xiaodong Han , Ze Zhang

We report the synthesis, and structural and physical properties of CaFe4As3 single crystals. Needle-like single crystals of CaFe4As3 were grown out of Sn flux and the compound adopts an orthorhombic structure as determined by X-ray…

Superconductivity · Physics 2015-05-27 A. B. Karki , G. T. McCandless , S. Stadler , Y. M. Xiong , J. Li , Julia Y. Chan , R. Jin

The synthesis of nanocomposite materials combining titanate nanofibers (TNF) with nanocrystalline ZnS and Bi2S3 semiconductors is described in this work. The TNF were produced via hydrothermal synthesis and sensitized with the semiconductor…

Materials Science · Physics 2015-03-31 T. J. Entradas , J. C. Cabrita , B. Barrocas , M. R. Nunes , A. J. Silvestre , O. C. Monteiro

We report the high temperature impedance and dielectric measurement of the nanocomposites comprising of CoFe2O4 (CFO) and LaNiO3 (LNO) by changing the content of LaNiO3 (0, 5, 10 and 15 %). The aim of the present study is to relate the…

Applied Physics · Physics 2020-01-08 Ananya Patra , V Prasad

Electric-field effect control of two-dimensional electron gases (2-DEG) has enabled the exploration of nanoscale electron quantum transport in semiconductors. Beyond these classical materials, transition metal-oxide-based structures have…

Mesoscale and Nanoscale Physics · Physics 2019-03-29 A. Jouan , G. Singh , E. Lesne , D. C. Vaz , M. Bibes , A. Barthélémy , C. Ulysse , D. Stornaiuolo , M. Salluzzo , S. Hurand , J. Lesueur , C. Feuillet-Palma , N. Bergeal

Semiconducting oxides with reducible cations are ideal platforms for various functional applications in nanoelectronics and catalysts. Here we report an ultrathin monolayer alpha-MoO3 where tunable electronic properties and different gas…

Materials Science · Physics 2022-04-20 Changmeng Huan , Pu Wang , Binghan He , Yongqing Cai , Qingqing Ke

In this work, we report the effects of calcination temperature on structural, dielectric, semiconducting and optical properties of YFeO3 nanoparticles prepared by a high energy ball milling process. The structural analysis of the X-ray…

Materials Science · Physics 2019-10-08 Chandra Bhal Singh , Dinesh Kumar , Narendra Kumar Verma , Akhilesh Kumar Singh

The adsorption/desorption of ethene (C2H4), also commonly known as ethylene, on Fe3O4(001) was studied under ultrahigh vacuum conditions using temperature programmed desorption (TPD), scanning tunneling microscopy, x-ray photoelectron…

A break in traditional pore morphology approach, is presented here to see its niche merit over the conventional sensors for water vapour detection. Tubular pores were replaced with normal cone for trace- and inverse cone for RH- level…

Applied Physics · Physics 2019-10-08 Kusum Sharma , Noor Alam , S. S. Islam

We have investigated the optically measurable properties of single evaporating microdroplets of suspensions containing up-converting luminescent nanoparticles (Gd2O3:Er3+), levitated in a linear electrodynamic trap. These microdroplets…

New routes for transforming nitrogen into ammonia at ambient conditions would be a milestone toward an energy efficient and economically attractive production route in comparison to the traditional Haber-Bosch process. Recently, the…

Rapid and reproducible assembly of aligned nanostructures on a wafer-scale is a crucial, yet one of the most challenging tasks in the incorporation of nanowires into integrated circuits. We present the synthesis of a periodic nanochannel…

Optical-field emission from nanostructured solids such as subwavelength nanoantennas can be leveraged to create sub-femtosecond, PHz-scale electronics for optical-field detection. One application that is of particular interest is the…

With the continuous development and improvement of medical services, there is a growing demand for improving diabetes diagnosis. Exhaled breath analysis, characterized by its speed, convenience, and non-invasive nature, is leading the trend…

Signal Processing · Electrical Eng. & Systems 2024-06-06 Jiaming Wei , Tong Liu , Jipeng Huang , Xiaowei Li , Yurui Qi , Gangyin Luo

The present study investigates the effect of different reaction times on the crystallinity, surface morphology and size of iron oxide nanoparticles. In this synthetic system, aqueous iron (III) nitrate (Fe(NO$_3$)$_3\cdot9$H$_2$O)…

Applied Physics · Physics 2021-10-29 Ioannis Papagiannis , Mauro S. Innocente , Evangelos I. Gkanas

We report the synthesis of alpha-Fe1.4Ga0.6O3 compound and present its structural phase stability and interesting magnetic, dielectric and photo-absorption properties. In our work Ga doped alpha-Fe2O3 samples are well stabilized in alpha…

Materials Science · Physics 2011-04-12 N. Naresh , R. N. Bhowmik

Epitaxial thin film fabrication of iron oxides including magnetite Fe3O4 and epsilon-ferrite epsilon-Fe2O3 with the potential for advancing electromagnetic devices has been investigated, which led to the first ever epsilon-ferrite epitaxial…

Applied Physics · Physics 2019-04-24 Masato Watanabe