scholarly journals Probing Local Surface Reactivity With Hydrogen Molecules-Realizing an Atom/Molecule Scanning Probe-

Shinku ◽  
2003 ◽  
Vol 46 (5) ◽  
pp. 391-396 ◽  
Author(s):  
Wilson Agerico DIÑO ◽  
Hideaki KASAI ◽  
Ayao OKIJI ◽  
Nelson B. ARBOLEDA Jr. ◽  
Katsuyuki FUKUTANI ◽  
...  
Keyword(s):  
Surface Reactivity ◽  
Scanning Probe ◽  
Local Surface ◽  
Hydrogen Molecules

Scattering Dynamics of Hydrogen Molecules on Metal Alloy Surfaces –Probing Local Surface Reactivity with Hydrogen Molecules–

2001 ◽  
Vol 70 (12) ◽  
pp. 3491-3494 ◽  
Author(s):  
Wilson Agerico Diño ◽  
Katsuyuki Fukutani ◽  
Tatsuo Okano ◽  
Hideaki Kasai ◽  
Ayao Okiji ◽  
...  
Keyword(s):  
Surface Reactivity ◽  
Metal Alloy ◽  
Local Surface ◽  
Hydrogen Molecules

scholarly journals Nanomechanical Probing With Scanning Force Microscopy

2001 ◽  
Vol 9 (1) ◽  
pp. 8-15 ◽  
Author(s):  
V. V. Tsukruk ◽  
V. V. Gorbunov
Keyword(s):  
Scanning Probe Microscopy ◽  
Scanning Force Microscopy ◽  
Scanning Probe ◽  
Static Force ◽  
Local Surface ◽  
Materials Properties ◽  
Force Microscopy ◽  
Nanomechanical Properties ◽  
Scanning Force ◽  
Magnetic And Electric Properties

Highly localized probing of surface nanomechanical properties with a submicron resolution can be accomplished with scanning probe microscopy (SPM). The SPM ability to probe local surface topography in conjunction with mechanical, adhesive, friction, thermal, magnetic, and electric properties is unique.1 However, the quantitative probing of the nanomechanical materials properties is still a challenge and only a few examples have been published to date.In this note, we briefly review the latest developments in the nanomechanical probing of compliant materials (predominantly polymers). We solely focus our analysis of SPM-based approach in a so-called static force spectroscopy (SFS) mode.

scholarly journals Local Interactions of Atmospheric Oxygen with MoS2 Crystals

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 5979
Author(s):  
Robert Szoszkiewicz
Keyword(s):  
Energy Harvesting ◽  
Computer Simulations ◽  
State Of The Art ◽  
Atmospheric Oxygen ◽  
Surface Reactivity ◽  
Local Surface ◽  
Future Directions ◽  
Thermally Induced ◽  
Mechanistic Insight ◽  
Open Questions

Thin and single MoS2 flakes are envisioned to contribute to the flexible nanoelectronics, particularly in sensing, optoelectronics and energy harvesting. Thus, it is important to study their stability and local surface reactivity. Their most straightforward surface reactions in this context pertain to thermally induced interactions with atmospheric oxygen. This review focuses on local and thermally induced interactions of MoS2 crystals and single MoS2 flakes. First, experimentally observed data for oxygen-mediated thermally induced morphological and chemical changes of the MoS2 crystals and single MoS2 flakes are presented. Second, state-of-the-art mechanistic insight from computer simulations and arising open questions are discussed. Finally, the properties and fate of the Mo oxides arising from thermal oxidation are reviewed, and future directions into the research of the local MoS2/MoOx interface are provided.

scholarly journals The local electron attachment energy and the electrostatic potential as descriptors of surface–adsorbate interactions

2019 ◽  
Vol 21 (31) ◽  
pp. 17001-17009 ◽  
Author(s):  
Joakim Halldin Stenlid ◽  
Adam Johannes Johansson ◽  
Tore Brinck
Keyword(s):  
Electrostatic Potential ◽  
Electron Attachment ◽  
Surface Reactivity ◽  
Local Surface ◽  
Local Electron ◽  
Attachment Energy

Local DFT-based properties are used for fast rationalization and accurate estimations of local surface reactivity of metal and oxide compounds.

Minerals, metals and molecules: ore and environmental mineralogy in the new millennium

2002 ◽  
Vol 66 (5) ◽  
pp. 653-676 ◽  
Author(s):  
D. J. Vaughan ◽  
R. A. D. Pattrick ◽  
R. A. Wogelius
Keyword(s):  
Scanning Probe Microscopy ◽  
Mineral Exploration ◽  
Bacterial Colonization ◽  
Surface Reactivity ◽  
Scanning Probe ◽  
Mineral Surfaces ◽  
Mineral Surface ◽  
Exploration And Exploitation ◽  
X Ray ◽  
Molecular Scale

AbstractAspects of the (bio)geochemical cycling of metals (including Fe, Cu, Pb, Zn, Hg, As, Sb, U, Tc, Np) at or near the Earth's surface are discussed with reference to the recent work of the authors. Key stages of the breakdown of metalliferous minerals, transport of metals as solution complexes or colloidal precipitates, and interaction of metals in solution with the surfaces of minerals are considered. Emphasis is on molecular-scale observations using techniques such as scanning probe microscopy, photoelectron and (synchrotron) X-ray spectroscopies. The importance of the biological/mineralogical interface is also emphasized with reference to the bacterial colonization of mineral surfaces and formation of biofilms, and their influence on mineral surface reactivity and flow of fluids through rocks and sediments. Also noted is the importance of relating molecular and micro-scale observations to macroscopic phenomena. Molecular-scale understanding is central to attempts to model many processes of relevance in mineral exploration and exploitation, and in the containment of hazardous wastes and remediation of polluted areas. Mineralogists have a central role to play in the relevant environmental sciences and technologies.

Imaging molecules adsorbed onto electrodes under potential control by scanning probe microscopy

1991 ◽  
Vol 49 ◽  
pp. 376-377 ◽  
Author(s):  
N.J. Tao ◽  
J.A. DeRose ◽  
P.I. Oden ◽  
S.M. Lindsay
Keyword(s):  
Surface Charge ◽  
Environmental Effects ◽  
Scanning Probe Microscopy ◽  
Statistical Significance ◽  
Electrochemical Methods ◽  
Surface Structures ◽  
Scanning Probe ◽  
Potential Control ◽  
Afm Imaging ◽  
Special Circumstances

Clemmer and Beebe have pointed out that surface structures on graphite substrates can be misinterpreted as biopolymer images in STM experiments. We have been using electrochemical methods to react DNA fragments onto gold electrodes for STM and AFM imaging. The adsorbates produced in this way are only homogeneous in special circumstances. Searching an inhomogeneous substrate for ‘desired’ images limits the value of the data. Here, we report on a reversible method for imaging adsorbates. The molecules can be lifted onto and off the substrate during imaging. This leaves no doubt about the validity or statistical significance of the images. Furthermore, environmental effects (such as changes in electrolyte or surface charge) can be investigated easily.

Scanning tunneling microscopy and atomic force microscopy: New tools for biology

1989 ◽  
Vol 47 ◽  
pp. 778-779
Author(s):  
CE Bracker ◽  
P. K. Hansma
Keyword(s):  
Physical Property ◽  
Scanning Probe ◽  
Scanning Tunneling ◽  
Small Scale ◽  
Tunneling Microscopy ◽  
Force Microscopy ◽  
New Family ◽  
Small Probe ◽  
Atomic Force ◽  
Transmission Electron

A new family of scanning probe microscopes has emerged that is opening new horizons for investigating the fine structure of matter. The earliest and best known of these instruments is the scanning tunneling microscope (STM). First published in 1982, the STM earned the 1986 Nobel Prize in Physics for two of its inventors, G. Binnig and H. Rohrer. They shared the prize with E. Ruska for his work that had led to the development of the transmission electron microscope half a century earlier. It seems appropriate that the award embodied this particular blend of the old and the new because it demonstrated to the world a long overdue respect for the enormous contributions electron microscopy has made to the understanding of matter, and at the same time it signalled the dawn of a new age in microscopy. What we are seeing is a revolution in microscopy and a redefinition of the concept of a microscope.Several kinds of scanning probe microscopes now exist, and the number is increasing. What they share in common is a small probe that is scanned over the surface of a specimen and measures a physical property on a very small scale, at or near the surface. Scanning probes can measure temperature, magnetic fields, tunneling currents, voltage, force, and ion currents, among others.

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