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Adsorption of Solid and Gaseous Surface

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (20 January 2022) | Viewed by 1694

Special Issue Editor


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Guest Editor
Department Physics, Hanyang University, Seoul, Korea
Interests: structure and dynamics of gas molecules on surfaces; heterogeneous interactions of adsorbates on various adsorbents; reactions and of hydrogen in complex materials; structure and application of aperiodic materials under high pressure; hydrogen energy storage under extreme condition; physical/chemical deposition and characterization of thin films; plasma etching and surface treatment

Special Issue Information

Dear Colleagues,

Studies on the interaction of molecules with surfaces are becoming more important to enhance our fundamental knowledge of physical and chemical reactions between heterogeneous phases including gas–solid, liquid–solid or gas–liquid states, and for technical application purposes such as designing gas detection methods and lubricants for reducing friction. This Special Issue is focused on the structure and dynamics of adsorbates on adsorbents in various states. The synthesis and characterization of new materials with catalytic reactions aimed at reducing atmospheric pollutants will also be a focus. It is our pleasure to invite you to submit a manuscript to this Special Issue. Papers with the “from synthesis to application” approach are welcomed. Topics of interest include, but are not limited to, the following:

  •  Surface structure determination
  • Analysis of surface microstructure and morphology
  • Physical and chemical reactions on surface and interface
  • Catalytic materials and reactions
  • New adsorbate and adsorbent materials
  • Low friction and lubricant materials
  • Films for energy devices
  • Surface functionalization
  • Plasma treatment and application

Prof. Jaeyong Kim
Guest Editor

Manuscript Submission Information

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Keywords

  • Adsorption
  • Surface structure
  • Plasma interaction
  • ALD

Published Papers (1 paper)

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Research

9 pages, 2028 KiB  
Article
Carbon Monoxide Oxidation over Gold Nanoparticles Deposited onto Alumina Film Grown on Mo(110) Substrate: An Effect of Charge Tunneling through the Oxide Film
by Tamerlan Magkoev
Materials 2021, 14(3), 485; https://0-doi-org.brum.beds.ac.uk/10.3390/ma14030485 - 20 Jan 2021
Cited by 1 | Viewed by 1320
Abstract
Formation of gold nanosized particles supported by aluminum oxide film grown on Mo(110) substrate and oxidation of carbon monoxide molecules on their surface have been in-situ studied in ultra-high vacuum by means of Auger electron spectroscopy (AES), reflection-absorption infrared spectroscopy (RAIRS), low energy [...] Read more.
Formation of gold nanosized particles supported by aluminum oxide film grown on Mo(110) substrate and oxidation of carbon monoxide molecules on their surface have been in-situ studied in ultra-high vacuum by means of Auger electron spectroscopy (AES), reflection-absorption infrared spectroscopy (RAIRS), low energy electron diffraction (LEED), atomic force microscopy (AFM), temperature-programmed desorption (TPD), and work function measurements. The main focus was to follow how the thickness of the alumina film influences the efficiency of CO oxidation in an attempt to find out evidence of the possible effect of electron tunneling between the metal substrate and the Au particle through the oxide interlayer. Providing the largest degree of surface identity of the studied metal/oxide system at different thicknesses of the alumina film (two, four, six, and eight monolayers), it was found that the CO oxidation efficiency, defined as CO2 to CO TPD peaks intensity ratio, exponentially decays with the oxide film thickness growth. Taking into account the known fact that the CO oxidation efficiency depends on the amount of excess charge acquired by Au particle, the latter suggests that electron tunneling adds efficiency to the oxidation process, although not significantly. Full article
(This article belongs to the Special Issue Adsorption of Solid and Gaseous Surface)
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