Skip to main content
×
Home
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 9
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Das, Anjan Mandal, Atis Chandra Roy, Soma Prashanth, Pendem Ahamed, Sk Izaz Kar, Subhrasmita Prasad, Mithun S. and Nambissan, P.M.G. 2016. Synthesis and characterization of magnesium oxide nanocrystallites and probing the vacancy-type defects through positron annihilation studies. Physica E: Low-dimensional Systems and Nanostructures, Vol. 83, p. 389.


    Baumann, Stefan O. Schneider, Johannes Sternig, Andreas Thomele, Daniel Stankic, Slavica Berger, Thomas Grönbeck, Henrik and Diwald, Oliver 2015. Size Effects in MgO Cube Dissolution. Langmuir, Vol. 31, Issue. 9, p. 2770.


    Sharma, Renu 2012. In-Situ Electron Microscopy.


    Wagner, Jakob B. Cavalca, Filippo Damsgaard, Christian D. Duchstein, Linus D.L. and Hansen, Thomas W. 2012. Exploring the environmental transmission electron microscope. Micron, Vol. 43, Issue. 11, p. 1169.


    Yaguchi, T. Kanemura, T. Shimizu, T. Imamura, D. Watabe, A. and Kamino, T. 2012. Development of a technique for in situ high temperature TEM observation of catalysts in a highly moisturized air atmosphere. Journal of Electron Microscopy, Vol. 61, Issue. 4, p. 199.


    Hayun, Shmuel Tran, Tien Ushakov, Sergey V. Thron, Andrew M. van Benthem, Klaus Navrotsky, Alexandra and Castro, Ricardo H. R. 2011. Experimental Methodologies for Assessing the Surface Energy of Highly Hygroscopic Materials: The Case of Nanocrystalline Magnesia. The Journal of Physical Chemistry C, Vol. 115, Issue. 48, p. 23929.


    Maeda, Nobutaka Urakawa, Atsushi Sharma, Renu and Baiker, Alfons 2011. Influence of Ba precursor on structural and catalytic properties of Pt–Ba/alumina NOx storage-reduction catalyst. Applied Catalysis B: Environmental, Vol. 103, Issue. 1-2, p. 154.


    Somorjai, Gabor A. Beaumont, Simon K. and Alayoglu, Selim 2011. Determination of Molecular Surface Structure, Composition, and Dynamics under Reaction Conditions at High Pressures and at the Solid-Liquid Interface. Angewandte Chemie International Edition, Vol. 50, Issue. 43, p. 10116.


    Somorjai, Gabor A. Beaumont, Simon K. and Alayoglu, Selim 2011. Bestimmung der Struktur, Zusammensetzung und Dynamiken molekularer Oberflächen unter Reaktionsbedingungen bei hohen Drücken und an der Fest-flüssig-Phasengrenzfläche. Angewandte Chemie, Vol. 123, Issue. 43, p. 10298.


    ×

Interaction of Oxide Surfaces with Water: Environmental Transmission Electron Microscopy of MgO Hydroxylation

  • Marija Gajdardziska-Josifovska (a1) and Renu Sharma (a2)
  • DOI: http://dx.doi.org/10.1017/S1431927605050403
  • Published online: 15 November 2005
Abstract

Environmental transmission electron microscopy (ETEM) is opening an important window for in situ studies of interaction of water with oxides. Studies of MgO smoke nanocrystals under partial pressures of water ranging from 10 mTorr to 10 Torr found their {100} neutral surfaces to be extremely resistant to dissociative adsorption of water and hydroxylation, in agreement with recent theoretical predictions. ETEM observations of electron irradiation driven MgO smoke nanocrystal hydroxylation displayed the anticipated volume expansion, but revealed complex shape changes with elongations toward oxide corners. The reaction rate was found to increase with electron flux at constant water pressure. In situ selected area diffraction studies of MgO single crystals showed that the hydroxide grows with its basal (0001) plane parallel to the polar MgO (111) planes. This is the same crystallographic relationship as in dehydroxylation experiments, but with four variants. Electron energy loss spectroscopy found oxygen K-edge changes consistent with bulk hydroxylation.

Copyright
Corresponding author
Corresponding author. E-mail: mgj@csd.uwm.edu
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Microscopy and Microanalysis
  • ISSN: 1431-9276
  • EISSN: 1435-8115
  • URL: /core/journals/microscopy-and-microanalysis
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords: