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Title: Polar solvation dynamics of H{sub 2}O and D{sub 2}O at the surface of zirconia nanoparticles

Abstract

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.

Authors:
;  [1]
  1. Colorado State Univ., Fort Collins, CO (United States). Dept. of Chemistry
Publication Date:
OSTI Identifier:
696656
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical
Additional Journal Information:
Journal Volume: 103; Journal Issue: 37; Other Information: PBD: 16 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 40 CHEMISTRY; TIME RESOLUTION; POLAR COMPOUNDS; SOLVATION; ZIRCONIUM OXIDES; PARTICLES; DYNAMICS; FLUORESCENCE SPECTROSCOPY; WATER; HEAVY WATER

Citation Formats

Pant, D., and Levinger, N.E. Polar solvation dynamics of H{sub 2}O and D{sub 2}O at the surface of zirconia nanoparticles. United States: N. p., 1999. Web. doi:10.1021/jp991746q.
Pant, D., & Levinger, N.E. Polar solvation dynamics of H{sub 2}O and D{sub 2}O at the surface of zirconia nanoparticles. United States. doi:10.1021/jp991746q.
Pant, D., and Levinger, N.E. Thu . "Polar solvation dynamics of H{sub 2}O and D{sub 2}O at the surface of zirconia nanoparticles". United States. doi:10.1021/jp991746q.
@article{osti_696656,
title = {Polar solvation dynamics of H{sub 2}O and D{sub 2}O at the surface of zirconia nanoparticles},
author = {Pant, D. and Levinger, N.E.},
abstractNote = {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.},
doi = {10.1021/jp991746q},
journal = {Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical},
number = 37,
volume = 103,
place = {United States},
year = {1999},
month = {9}
}