TY - JOUR
T1 - Amorphous water in three-dimensional confinement of zeolite-templated carbon
AU - Kyakuno, Haruka
AU - Matsuda, Kazuyuki
AU - Nakai, Yusuke
AU - Fukuoka, Tomoko
AU - Maniwa, Yutaka
AU - Nishihara, Hirotomo
AU - Kyotani, Takashi
N1 - Funding Information:
This work was in parts supported by a Grant-in-Aid for Scientific Research on Priority Area ‘New Materials Science Using Regulated Nano Spaces’, and by JSPS KAKENHI Grant Number 21540421.
PY - 2013/5/20
Y1 - 2013/5/20
N2 - A newly developed nano-structural material, zeolite-templated carbon (ZTC), adsorbs a large amount of water, up to 120-170 wt.% with respect to the dry ZTC. Here, we investigated this nanoconfined water by several experimental methods, including specific heat and nuclear magnetic resonance measurements, and molecular dynamics simulations. The water was highly mobile down to 200 K and its rotational correlation time followed an apparent non-Arrhenius behavior. With decreasing temperature, it was suggested that the water freezes into a low-density amorphous ice with a possible glass transition temperature of around 150 K. ZTC provides a new platform to study three-dimensional 'supercooled' water.
AB - A newly developed nano-structural material, zeolite-templated carbon (ZTC), adsorbs a large amount of water, up to 120-170 wt.% with respect to the dry ZTC. Here, we investigated this nanoconfined water by several experimental methods, including specific heat and nuclear magnetic resonance measurements, and molecular dynamics simulations. The water was highly mobile down to 200 K and its rotational correlation time followed an apparent non-Arrhenius behavior. With decreasing temperature, it was suggested that the water freezes into a low-density amorphous ice with a possible glass transition temperature of around 150 K. ZTC provides a new platform to study three-dimensional 'supercooled' water.
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U2 - 10.1016/j.cplett.2013.04.016
DO - 10.1016/j.cplett.2013.04.016
M3 - Article
AN - SCOPUS:84877794062
SN - 0009-2614
VL - 571
SP - 54
EP - 60
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -