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Chemicals, plastics and rubber industries

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Bionanofabrication of ordered nanoparticle arrays: effect of particle properties and adsorption conditions

Article Abstract:

Arrays of Au nanoparticles were created using the inherent repeating patterns of bacterial S-layer proteins. Combined with the results from additional investigations using either uncharged hydroxy-terminated particles or positively charged ferritin molecules, the experimental data suggest that the creation of ordered arrays through biotemplating of Au nanoparticles onto HPI-S layers depends on the electrostatic interactions between individual nanoparticles as well as interaction with the HPI layer.

Author: Batt, Carl A., Angert, Esther R., Bergkvist,
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
Protein structure, Ferritin

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CO adsorption on Ru-modified Pt(100) surfaces: infrared reflection absorption studies in ultrahigh vacuum

Article Abstract:

The mode of bonding of CO to Ru-modified Pt (100) surfaces through infrared reflection absorption spectroscopy (IRAS) in ultrahigh vacuum (UHV), prepared by chemical vapor deposition is investigated. Spectra recorded in the CO stretching region for freshly prepared Ru (thetaRu ca.0.52)/ Pt(100) exposed to saturation coverage of CO displayed, in addition to a rather weak peak ascribed to CO bound to bridging sites, a single asymmetric peak centered at ca. 2092 cm(super -1).

Author: Scherson, Daniel A., Yee, Nelson, Shottiner, Gary S.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
Absorption spectra, Chemical vapor deposition, Chemical vapour deposition, Saturation (Electronics)

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Determination of H adsorption sites on Pt/C electrodes in HCIO4 from Pt L23 X-ray absorption spectroscopy

Article Abstract:

A different procedure utilizing L3 spectra at different applied voltages was used to isolate H adsorption on the Pt electrode in the XAS spectra. The interpretation of electrochemically modulated IR spectra suggests that the delocalized H exists at low coverage and has a profound affect on water double layer.

Author: Teliska, M., O'Grady, W.E., Ramaker, D.E.
Publisher: American Chemical Society
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
Spectrum analysis, Spectroscopy, Electrodes

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Subjects list: Research, Electrochemistry, Adsorption
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