Preparation of copper-poly(2-vinylpyridine) nanocomposites
- AT and T Bell Labs., Murray Hill, NJ (USA)
- Polytechnic Univ., Brooklyn, NY (USA)
Ultrafine copper particles were prepared in a poly(2-vinylpyridine) matrix by the thermal decomposition of a copper formate-poly(2-vinylpyridine) complex. The steric bulk of the polymeric ligand precludes complexation of more than one pyridine moiety around copper and ensures solubility of the complex. At temperatures above 125C, a redox reaction occurs where Cu{sup 2+} is reduced to copper metal and formate is oxidized to CO{sub 2} and H{sub 2}. The decomposition reaction was studied by thermogravimetric analysis, differential scanning calorimetry, and mass spectrometry. Copper concentrations up to 23 wt % have been incorporated into the polymer by this technique. The presence of the polymeric ligand induces the redox reaction to occur at a temperature 80C lower than in uncomplexed copper formate. Incorporation of the reducing agent (formate anion) into the polymer precursor enables the redox reaction to occur in the solid state. Films of the polymer precursor techniques, transmission electron microscopy, and extended X-ray absorption fine structure (EXAFS).
- OSTI ID:
- 5235689
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 95:3; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
ABSORPTION SPECTROSCOPY
AZINES
CALORIMETRY
CHEMICAL ANALYSIS
CHEMICAL PREPARATION
COHERENT SCATTERING
COMPLEXES
COPPER COMPLEXES
DATA
DIFFRACTION
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
GRAVIMETRIC ANALYSIS
HETEROCYCLIC COMPOUNDS
INFORMATION
INFRARED SPECTRA
MASS SPECTROSCOPY
MICROSCOPY
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PYRIDINES
QUANTITATIVE CHEMICAL ANALYSIS
SCATTERING
SPECTRA
SPECTROSCOPY
SYNTHESIS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
TRANSITION ELEMENT COMPLEXES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION