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Raman spectroscopy analysis

An independent information on the nature of the gap in TEA(TCNQ)2 has been obtained by means of Raman spectroscopy analysis, which supports a description in terms of 2kF Peierls distortion [32]. It was considered... [Pg.323]

Vibrational Cooling Process in Solution Probed by Picosecond Time-Resolved Raman Spectroscopy. Analysis of the Cooling Kinetics. [Pg.417]

In situ Raman spectroscopy analysis of isothermal and nonisothermal oxidation of DWCNTs in air showed a decrease in the intensity of the D band starting around 370°C, followed by complete D band elimination at 440°C. The oxidation process produced the purest CNTs ever reported, which were free of amorphous carbon and highly defective tubes, while the removal of amorphous material was not accompanied by tube damage. In situ Raman measurements allowed us to determine the different contributions to the D band feature and show the relationship between D band, G band, and RBM Raman modes in the Raman spectra of DWCNTs upon heating. The described approach thus provides an efficient purification method for DWCNTs and SWCNTs, which is also selective to tube diameter and chirality. While oxidation of MWCNTs did not significantly decrease the D band intensity below 450°C, oxidation in air can be an effective route to control the number of... [Pg.344]

Li Z, Little R, Dervishi E, Saini V, Xu Y, Biris AR, Lupu D, Trigwell S, Saini D, Biris AS (2008) Micro-Raman spectroscopy analysis of catalyst morphology for carbon nanotubes synthesis. Chem Phys 353 25-51... [Pg.440]

Involvement of lattice oxygen from deep within bismuth molybdate catalysts is confirmed from the results of Raman spectroscopy analysis of catalysts which... [Pg.255]

It is well known that nanoparticulate colloidal dispersions of PANI in various paints at low concentrations cause tremendous improvements in corrosion protection [504]. PANI-NFs showed similar anticorrosive effects e.g., carbon steel coated with PANI-NFs has better corrosion protection than that with aggregated PANI. Raman spectroscopy analysis indicated that the surface of carbon steel coated with PANI-NFs formed a better passive layer, which is composed of a-ferric oxide and Fc304 [146]. The corrosion resistance performance of soya oil alkyd containing nanostructured PANI composite coatings has recently been studied [447]. An array of Fe nano wires within PANI-NTs was obtained using a two-step template synthesis [316]. This PANI-NT envelope may protect the Fe nanowires against a corrosive atmosphere. [Pg.71]

H. Nguyen Thi Le, M.C. Bernard, B. Garcia-Renaud, and C. Deslouis, Raman spectroscopy analysis of polypyrrole films as protective coatings on iron, Synth. Metals, 140,287-293 (2004). [Pg.676]

For specific types of data, needed developments are incorporated in the Raman spectroscopie analysis. These are ... [Pg.99]

New Strategies for Identifying Natural Products of Ecological Significance from Corals Nondestructive Raman Spectroscopy Analysis... [Pg.313]

See other pages where Raman spectroscopy analysis is mentioned: [Pg.413]    [Pg.411]    [Pg.403]    [Pg.403]    [Pg.79]    [Pg.86]    [Pg.405]    [Pg.222]    [Pg.260]    [Pg.114]    [Pg.221]    [Pg.825]    [Pg.160]    [Pg.841]    [Pg.38]    [Pg.72]    [Pg.196]    [Pg.315]    [Pg.317]    [Pg.327]    [Pg.329]    [Pg.331]    [Pg.333]    [Pg.335]    [Pg.337]    [Pg.339]    [Pg.341]    [Pg.343]    [Pg.345]    [Pg.347]    [Pg.349]   


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Analysis spectroscopy

Raman analysis

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