TITLE

Distorted surface and interface structures of catalytic gold nanoparticles observed by spherical aberration-free phase electron microscopy

AUTHOR(S)
Kawasaki, Tadahiro; Takai, Yoshizo; Shimizu, Ryuichi
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/19/2001, Vol. 79 Issue 21, p3509
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The surface and interface atomic structure of catalytic gold nanoparticles was studied by analyzing a spherical aberration-free phase image. Typically, a catalytic gold particle forms a single crystal having a cuboctahedral shape. The atomic structure of the surface and interface is largely deformed from the bulk structure by stress produced by the atom missing row structure, the reconstructed surface structure, and strong interaction with the substrate. In addition, the structure inside the particle is also deformed by distortion of the surface and the interface. © 2001 American Institute of Physics.
ACCESSION #
5549539

 

Related Articles

  • Modeling of electronic properties of silicon nanoparticles with dense atomic packing. Filippov, V. V.; Vlasov, A. N. // Russian Physics Journal;Jan2010, Vol. 53 Issue 1, p77 

    Results of optimization of the atomic structure and calculation of electronic and transfer characteristics of Si13 silicon clusters with dense atomic packing and silicon nanoparticles encapsulated by transitive metal atoms (Cu, Zn, Fe, and Ni) are presented. It is demonstrated that an external...

  • Nano's Frontier. Wetzel, Shannon // Modern Casting;Mar2010, Vol. 100 Issue 3, p27 

    The article focuses on research being done on the dispersal of nanoparticles into metal castings in order to strengthen lightweight alloys, as conducted by researchers led by University of Wisconsin-Madison professor Xiaochun Li. It states that nanoparticles have the capability to bulk material...

  • One possibility of determining the atomic structure of nanosized particles using diffuse-scattering data. Simonov, V. I.; Burova, E. M.; Shchedrin, B. M. // JETP Letters;9/15/2006, Vol. 84 Issue 2, p73 

    A method based on using the Fourier transform of finite functions has been developed to reconstruct the distribution function of interatomic vectors in a nanoparticle from x-ray diffuse scattering data. This distribution is similar to the Patterson function used in the structure analysis of...

  • X-ray Emission Study of the Electronic Structure of Nanocrystalline Al2O3. Zatsepin, D. A.; Cherkashenko, V. M.; Kurmaev, É;. Z.; Shamin, S. N.; Fedorenko, V. V.; Skorikov, N. A.; Plastinin, S. V.; Gavrilov, N. V.; Medvedev, A. I.; Cholakh, S. O. // Physics of the Solid State;Nov2004, Vol. 46 Issue 11, p2134 

    Valence states of metal ions and the phase composition of nanocrystalline Al2O3 (of the original oxide and the oxide irradiated by high-energy Fe+ ions) are studied by using x-ray emission Al L2, 3 and O Kα spectra. It is established that the shape of the Al L2, 3 spectra strongly changes as...

  • Atomic structure of nickel nanoparticles and quantum fluctuations of their magnetic moments. Shevchenko, A. B.; Melnik, A. B. // Technical Physics;May2006, Vol. 51 Issue 5, p672 

    Quantum tunneling of the magnetic moments of Ni nanoparticles with various spatial atomic structures is studied. The crossover temperature of the nanoparticle fluctuations exhibits a step when the icosahedral structure of the particles changes to the fcc structure. The rate of quantum magnetic...

  • Atomic structure and magnetic properties of MnFe...O... nanoparticles produced by reverse micelle... Carpenter, Everett E.; O'Connor, Charles J. // Journal of Applied Physics;4/15/1999 Part 2A of 2, Vol. 85 Issue 8, p5175 

    Presents information on a study which focused on the atomic structure and magnetic properties of manganese-iron...oxide... nanoparticles using reverse micelle synthesis. Experimental details; Results and discussion.

  • Influence of the special features of atomic structure of Si24 and MeSi24 (Me = Na or K) nanoparticles on their electron properties. Borshch, N.; Pereslavtseva, N.; Kurganskii, S. // Russian Physics Journal;Feb2006, Vol. 49 Issue 2, p170 

    The influence of atomic structure of silicon nanoparticles on the distribution of total and partial state densities in the valence and conductivity bands as well as on the valence band and gap widths is analyzed based on the calculated geometrical and electron structure of the Si 24 and MeSi 24...

  • Scale bridging method to characterize mechanical properties of nanoparticle/polymer nanocomposites. Seunghwa Yang; Maenghyo Cho // Applied Physics Letters;7/28/2008, Vol. 93 Issue 4, p043111 

    Multiscale analysis to characterize the size effect of silica nanoparticles on the mechanical properties of nanoparticle/polymer nanocomposites is developed and verified through a molecular dynamics simulation and continuum micromechanics model. In the micromechanics model, the particle-matrix...

  • Abstractions.  // Nature;3/30/2006, Vol. 440 Issue 7084, pxv 

    The article presents a conversation with Simon Billinge, a researcher at Michigan State University in East Lansing, who presented an algorithm based on British soccer leagues to show the structure of complex inorganic nanoparticles. He explains the application of the soccer analogy to atomic...

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