Polar solvation dynamics of H[sub 2]O and D[sub 2]O at the surface of zirconia nanoparticles
- Colorado State Univ., Fort Collins, CO (United States). Dept. of Chemistry
Time-resolved fluorescence-upconversion spectroscopy has been used to study the polar solvation dynamics of H[sub 2]O and D[sub 2]O at the surface of zirconia (ZrO[sub 2]) nanoparticles. While an isotope effect is observed for the solvation dynamics of bulk D[sub 2]O, there is no isotope effect on the interfacial solvation dynamics. The interfacial solvation dynamics are the same for H[sub 2]O and D[sub 2]O and are faster than the bulk solutions. The bulk isotope effect is due to stronger hydrogen bonding in D[sub 2]O compared to H[sub 2]O, slowing the reorientation of the excited-state dipoles in the bulk D[sub 2]O. The lack of isotope effect for the interfacial dynamics is explained in terms of the solvent interacting with the ZrO[sub 2] surface.
- OSTI ID:
- 5941551
- Journal Information:
- Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical, Vol. 103:37; ISSN 1089-5647
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DYNAMICS
FLUORESCENCE SPECTROSCOPY
HEAVY WATER
PARTICLES
POLAR COMPOUNDS
SOLVATION
TIME RESOLUTION
WATER
ZIRCONIUM OXIDES
CHALCOGENIDES
DEUTERIUM COMPOUNDS
EMISSION SPECTROSCOPY
HYDROGEN COMPOUNDS
MECHANICS
OXIDES
OXYGEN COMPOUNDS
RESOLUTION
SPECTROSCOPY
TIMING PROPERTIES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
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Cermets
& Refractories- Physical Properties
400202 - Isotope Effects
Isotope Exchange
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