Scanning tunnelling adsorption

Fisher A J and Bldchl P E 1993 Adsorption and scanning-tunneling-microscope Imaging of benzene on graphite and M0S2 Phys. Rev. Lett. 70 3263-6... 

The very new techniques of scanning tunnelling microscopy (STM) and atomic force microscopy (AFM) have yet to establish themselves in the field of corrosion science. These techniques are capable of revealing surface structure to atomic resolution, and are totally undamaging to the surface. They can be used in principle in any environment in situ, even under polarization within an electrolyte. Their application to date has been chiefly to clean metal surfaces and surfaces carrying single monolayers of adsorbed material, rendering examination of the adsorption of inhibitors possible. They will indubitably find use in passive film analysis. 

Valette-Hamelin approach,67 and other similar methods 24,63,74,218,225 (2) mass transfer under diffusion control with an assumption of homogeneous current distribution73 226 (3) adsorption of radioactive organic compounds or of H, O, or metal monolayers73,142,227 231 (4) voltammetry232,233 and (5) microscopy [optical, electron, scanning tunneling microscopy (STM), and atomic force microscopy (AFM)]234"236 as well as a number of ex situ methods.237 246... 

Adsorption of formaldehyde on Pt (111) and Pt(lOO) electrodes cyclic voltammetry and scanning tunneling microscopy. Langmuir, 21, 4964—4970. 

The adsorption of anions on the surface of LDHs has been studied by scanning tunneling microscopy (STM) and atomic force microscopy (AFM) in the belief that the arrangement of anions adsorbed on the external (001) surface of the platelets may mimic the arrangement of the same anions in the interlayer galleries. The AFM image of the crystal surface of an LDH with... 

Katano, S., Herceg, E., Trenary, M., Kim, Y. and Kawai, M. (2006) Single molecule observations of the adsorption sites of methyl isocyanide on Pt(lll) by low-temperature scanning tunneling microscopy. J. Phys. Chem. E, 110, 20344-9. 

Behm, R. J. (1990). Scanning tunneling microscopy Metal surfaces, adsorption and surface reactions. In Behm, R. J., Garcia, N., and Rohter, H., Scanning Tunneling Microscopy and Related Methods, Kluwer, Dordrecht, 173-210. 

Tokumoto, H., Miki, K., Murakami, H., Bando, H., Ono, M., and Kajimura, K. (1990). Real-time observation of oxygen and hydrogen adsorption on silicon surfaces by scanning tunneling microscopy. J. Vac. Sci. Technol. A8, 255-258. 

The second class of atomic manipulations, the perpendicular processes, involves transfer of an adsorbate atom or molecule from the STM tip to the surface or vice versa. The tip is moved toward the surface until the adsorption potential wells on the tip and the surface coalesce, with the result that the adsorbate, which was previously bound either to tine tip or the surface, may now be considered to be bound to both. For successful transfer, one of the adsorbate bonds (eiLher with the tip or with the surface, depending on the desired direction of transfer) mnst be broken. The fate of the adsorbate depends on the nature of its interaction with the tip and the surface, and the materials of the tip and surface. Directional adatom transfer is possible with the application of suitable junction biases. See also Scanning Tunneling Microscope. 

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