skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Quantum Coherence and Temperature Dependence of the Anomalous State of Nanoconfined Water in Carbon Nanotubes

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [2];  [3];  [3];  [4]
  1. Physics Department, University of Houston, Houston, Texas 77204, United States
  2. Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
  3. Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, Sayo-cho, Hyogo 679-5198, Japan
  4. Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States

X-ray Compton scattering measurements of the electron momentum distribution in water confined in both single-walled and double-walled carbon nanotubes (SWNT and DWNT), as a function of temperature and confinement size are presented here together with earlier measurements of the proton momentum distribution in the same systems using neutron Compton scattering. These studies provide a coherent picture of an anomalous state of water that exists because of nanoconfinement. This state cannot be described by the weakly interacting molecule picture. It has unique transport properties for both protons and water molecules. Furthermore, we suggest that knowledge of the excitation spectrum of this state is needed to understand the enhanced flow of water in cylinders with diameters on the order of 20 Å.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-08ER46486; AC05-00OR22725
OSTI ID:
1330471
Alternate ID(s):
OSTI ID: 1330556; OSTI ID: 1334167
Journal Information:
Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Vol. 7 Journal Issue: 22; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (17)

Measurement of Two Solvation Regimes in Water-Ethanol Mixtures Using X-Ray Compton Scattering journal October 2011
Evidence for an anomalous quantum state of protons in nanoconfined water journal January 2012
Diffusion of Water Inside Carbon Nanotubes Studied by Pulsed Field Gradient NMR Spectroscopy journal July 2014
Phase diagram of water in carbon nanotubes journal December 2007
Proton Transport and the Water Environment in Nafion Fuel Cell Membranes and AOT Reverse Micelles journal July 2007
Water transport inside carbon nanotubes mediated by phonon-induced oscillating friction journal July 2015
Measurement of the Rate of Water Translocation through Carbon Nanotubes journal May 2011
Structural studies of purified double walled carbon nanotubes (DWNTs) using phase restored high-resolution imaging journal January 2004
Dynamics of water confined in single- and double-wall carbon nanotubes journal May 2006
Anomalous Behavior of Proton Zero Point Motion in Water Confined in Carbon Nanotubes journal December 2006
Anomalously Soft Dynamics of Water in a Nanotube: A Revelation of Nanoscale Confinement journal July 2004
Correlation of hydrogen bond lengths and angles in liquid water based on Compton scattering journal August 2006
Purification and Characterization of Single-Wall Carbon Nanotubes (SWNTs) Obtained from the Gas-Phase Decomposition of CO (HiPco Process) journal September 2001
Diameter-dependent ion transport through the interior of isolated single-walled carbon nanotubes journal September 2013
Isotope quantum effects in the electron momentum density of water journal April 2007
Anomalous Ground State of the Electrons in Nanoconfined Water journal July 2013
Single-File Diffusion of Confined Water Inside SWNTs: An NMR Study journal March 2010