Evidence of edge-sharing TiO5 polyhedra in Ti-substituted pollucite, CsTi(sub x)Al(sub 1-x)Si(sub 2)O(sub 6+x/2)
Article Abstract:
The compositional series CsTi(sub x)Al(sub 1-x)Si(sub 2)O(sub 6+x/2), O less than or equal to x less than or equal to 1, was investigated using X-ray absorption and Raman spectroscopy. The extended X-ray absorption fine structure and Raman result suggests a nonrandom pairing of TiO5 polyhedra on symmetrically equivalent sites and the formation of edge-sharing relationship between adjacent TiO5 polyhedra.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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Strain determination in electrochemically doped single-walled carbon nanotubes via Raman spectroscopy
Article Abstract:
The frequencies of the first- and second-order high-energy modes as excited in the range 477-780 nm were examined as a function of doping level. The doping-induced shifts of selected Raman modes are related to the dimensional changes of the single-wall carbon nanotubes (SWNTs) and a method to determine their actuation properties from those shifts is proposed.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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First spectroscopic observation of peroxocarbonate/peroxodicarbonate in molten carbonate
Article Abstract:
The in situ Raman spectroscopic technique was used to present the first experimental observation of peroxocarbonate/peroxodicarbonate species in acidic molten carbonate. According to the results the peroxodicarbonate mechanism seems to be the dominant feature in the cathode reaction path in the molten carbonate fuel cell (MCFC).
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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