Physicochemical properties and sensing ability of metallophthalocyanines/chitosan nanocomposites

Article Abstract:

A study produced electroactive nanostructured films of chitosan (Ch) and tetrasulfonated metallophthalocyanines containing nickel (NiTsPc), copper (CuTsPc), and iron (FeTsPc) through the electrostatic layer-by-layer (LbL) technique. Results demonstrate that versatile electrodes could be prepared by incorporation of different metallophthalocyanine molecules in LbL films, which might be used in bionalaytical applications.

Science & research, Research, Chitin, Nanotechnology, Chemical properties

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Electronic structure of lithium nickel oxides by electron energy loss spectroscopy

Article Abstract:

The electronic structures of NiO, LiNiO2, and NiO2 are studied by the electron energy loss spectroscopy at Ni L(sub 2,3), Ni M(sub 2,3), and O K edges. The spectra suggest that lithium extraction from LiNiO2 reinforces the covalent bonding between the oxygen and nickel atoms and causes a notable reduction in electron density at the oxygen atoms.

Lithium Compounds, Electric properties

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A self-organized two-dimensional bimolecular structure

Article Abstract:

Scanning tunneling microscopy (STM) images of single molecular layers of F16CoPc, nickel tetraphenylporphyrin (NiTPP), and mixtures of NiTPP with F16CoPc and of NiTPP with CoPc are presented. NiTPP/F16CoPc spontaneously forms a well-ordered 1:1 structure and NiTPP/CoPc forms a two-dimensional bimolecular solid solution.

Analysis, Usage, Molecular structure, Scanning tunneling microscopy

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