TITLE

An electron microscopic investigation of structural variation of V2O5 fibers after working as ethanol sensors

AUTHOR(S)
Ning Ding; Liu, Shuhua; Chunhua Chen; Lieberwirth, Ingo
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p173510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This is a study of V2O5 fibers as ethanol sensors. The variation in the V2O5 electronic state and its structure after reaction with ethanol are investigated by electron energy-loss spectroscopy and electron diffraction. Results show that after reaction the oxidation state of vanadium in V2O5 is reduced to +4, and the crystallinity of V2O5 is completely destroyed, forming amorphous VO2 nanoparticles. High-resolution transmission electron microscopy shows that the diameter of amorphous VO2 nanoparticles is about 4 nm.
ACCESSION #
35279042

 

Related Articles

  • Electron microscopy study of CeOx–Pd/α-Al2O3 catalysts for methane dry reforming. Moreno, M. S.; Wang, F.; Malac, M.; Kasama, T.; Gigola, C. E.; Costilla, I.; Sánchez, M. D. // Journal of Applied Physics;Apr2009, Vol. 105 Issue 8, p083531 

    We have investigated the interaction between Pd and Ce in a (0.47 wt %) CeOx–Pd(1 wt %)/α-Al2O3 catalyst that is used in the reforming reaction of CH4 with CO2. The freshly reduced catalyst was characterized by various electron microscopy techniques, such as elemental mapping,...

  • In situ ETEM synthesis of NiGa alloy nanoparticles from nitrate salt solution. Damsgaard, Christian Danvad; Duchstein, Linus Daniel Leonhard; Sharafutdinov, Irek; Nielsen, Morten Godtfred; Chorkendorff, Ib; Wagner, Jakob Birkedal // Microscopy;Oct2014, Vol. 63 Issue 5, p397 

    Metallic alloy nanoparticles (NPs) are synthesized in situ in an environmental transmission electron microscope. Atomic level characterization of the formed alloy NPs is carried out at synthesis conditions by use of high-resolution transmission electron microscopy, electron diffraction and...

  • Origins of ferromagnetism in transition-metal doped Si. Ko, V.; Teo, K. L.; Liew, T.; Chong, T. C.; MacKenzie, M.; MacLaren, I; Chapman, J. N. // Journal of Applied Physics;Aug2008, Vol. 104 Issue 3, p033912 

    We present results of the magnetic, structural, and chemical characterizations of Mn+-implanted Si displaying n-type semiconducting behavior and ferromagnetic ordering with Curie temperature, TC, well above room temperature. The temperature-dependent magnetization measured by superconducting...

  • A strategy for simulating Electron Energy-Loss Near-Edge Structures of nanoparticles: application to size effects in Gd2O3. Épicier, T.; Le Bossé, J.-C.; Perriat, P.; Roux, S.; Tillement, O. // European Physical Journal - Applied Physics;Jun2011, Vol. 54 Issue 3, pN.PAG 

    Nanoparticles (NPs) have attracted a considerable interest in the last decades, owing to their remarkable physical and chemical properties. The most important characteristic of NPs is the size effect, that is, their properties differ from that of the corresponding bulk material. We will focus...

  • Role of the microstructure on the magnetic properties of Co-doped ZnO nanoparticles. Martínez, B.; Sandiumenge, F.; Balcells, Ll.; Arbiol, J.; Sibieude, F.; Monty, C. // Applied Physics Letters;3/7/2005, Vol. 86 Issue 10, p103113 

    We report on the magnetic and structural properties of Co-doped ZnO nanoparticles prepared by the vaporization-condensation method in a solar reactor. X-ray diffraction data and high-resolution electron microscopy (HREM) confirm the total absence of metallic Co clusters or any other phase...

  • From nanoparticle to nanocable: Impact of size and geometrical constraints on the optical modes of Si/SiO2 core/shell nanostructures. Juan Wang; Xiao-Jing Wang; Yang Jiao; Quan Li; Ming-Wen Chu; Malac, Marek // Applied Physics Letters;9/28/2009, Vol. 95 Issue 13, p133102 

    In the extinction spectra of Si/SiO2 core/shell nanostructures, peak features in the near UV region (3–5 eV) appear when the nanostructure geometrical configuration changes from spherical nanoparticles to cylindrical nanocables, with the peak features become more intense in the nanocables...

  • Combining elastic and resonant inelastic optical spectroscopies for multiscale probing of embedded nanoparticle architectures. Farcau, Cosmin; Bonafos, Caroline; Benzo, Patrizio; Benassayag, Gerard; Carles, Robert // Journal of Applied Physics;Nov2010, Vol. 108 Issue 9, p093516 

    Composite materials consisting of metal nanoparticles (NPs) embedded in a dielectric matrix have a great potential for photonic and plasmonic applications. A set of expensive, time-consuming, and destructive methods (like electron microscopy, electron energy loss, or secondary ion mass...

  • A TEM study of nanoparticles in lustre glazes. Fredrickx, P.; Hélary, D.; Schryvers, D.; Darque-Ceretti, E. // Applied Physics A: Materials Science & Processing;2004, Vol. 79 Issue 2, p283 

    Transmission electron microscopy (TEM) has been used to investigate the nanoscale morphology of some contemporary lustre glazes. High-resolution TEM, electron energy-loss spectroscopy and energy-dispersive X-ray analysis data imply that two kinds of nanoparticles are present in the lustre layer,...

  • Nanoparticles: Dissected with electrons. Leapman, Richard D. // Nature Nanotechnology;Jul2010, Vol. 5 Issue 7, p480 

    The article discusses research on the chemical mapping of complex hybrid nanoparticles through combined electron energy-loss spectroscopy and electron microscopy. It references a study by Matti van Schooneveld et al that was published in "Nature Nanotechnology" on the quantification of organic...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics