Low-temperature dynamics of water confined in a hydrophobic mesoporous material

被引：20

作者：

Chu, Xiang-qiang ^{[1
]}

Liu, Kao-Hsiang ^{[2
]}

Tyagi, Madhu Sudan ^{[3
]}

Mou, Chung-Yuan ^{[2
]}

Chen, Sow-Hsin ^{[1
]}

机构：

[1] MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA

[2] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[3] Natl Inst Stand & Technol, NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW E | 2010年 / 82卷 / 02期

基金：

美国国家科学基金会;

关键词：

STRONG LIQUID TRANSITION; SUPERCOOLED WATER; CROSSOVER;

D O I：

10.1103/PhysRevE.82.020501

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Quasielastic neutron scattering was used to study the dynamics of three-dimensional confined water in a hydrophobic mesoporous material designated as CMK-1 in the temperature range from 250 to 170 K. We observe a crossover phenomenon at temperature T-L. We find that T-L of water confined in CMK-1 occurs in between previous observations of one-dimensional confined water in materials with different hydrophilicities. This provides the first evidence that besides the obvious surface effect brought about by the hydrophobic confinements, T-L is also dependent on the dimensionality of the geometry of the confinement.

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页数：4

相关论文

共 25 条

[1] Spontaneous and induced dynamic fluctuations in glass formers. I. General results and dependence on ensemble and dynamics [J].

Berthier, L. ;

Biroli, G. ;

Bouchaud, J.-P. ;

Kob, W. ;

Miyazaki, K. ;

Reichman, D. R. .

JOURNAL OF CHEMICAL PHYSICS, 2007, 126 (18)

[2] Direct experimental evidence of a growing length scale accompanying the glass transition [J].

Berthier, L ;

Biroli, G ;

Bouchaud, JP ;

Cipelletti, L ;

El Masri, D ;

L'Hôte, D ;

Ladieu, F ;

Pierno, M .

SCIENCE, 2005, 310 (5755) :1797-1800

[3] Interfaces and the driving force of hydrophobic assembly [J].

Chandler, D .

NATURE, 2005, 437 (7059) :640-647

[4]

Chen C.-Y., 2008, A study on the disappearance of Globigerinoides fistulosus and its relationship to the hydrological change of the tropical Pacific

[5] Model for single-particle dynamics in supercooled water [J].

Chen, SH ;

Liao, C ;

Sciortino, F ;

Gallo, P ;

Tartaglia, P .

PHYSICAL REVIEW E, 1999, 59 (06) :6708-6714

[6] The Dynamic Response Function χT(Q,t) of Confined Supercooled Water and its Relation to the Dynamic Crossover Phenomenon [J].

Chen, Sow-Hsin ;

Zhang, Yang ;

Lagi, Marco ;

Chu, Xiangqiang ;

Liu, Li ;

Faraone, Antonio ;

Fratini, Emiliano ;

Baglioni, Piero .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2010, 224 (1-2) :109-131

[7] Observation of a dynamic crossover in water confined in double-wall carbon nanotubes [J].

Chu, X.-Q. ;

Kolesnikov, A. I. ;

Moravsky, A. P. ;

Garcia-Sakai, V. ;

Chen, S.-H. .

PHYSICAL REVIEW E, 2007, 76 (02)

[8] Proteins Remain Soft at Lower Temperatures under Pressure [J].

Chu, Xiang-qiang ;

Faraone, Antonio ;

Kim, Chansoo ;

Fratini, Emiliano ;

Baglioni, Piero ;

Leao, Juscelino B. ;

Chen, Sow-Hsin .

JOURNAL OF PHYSICAL CHEMISTRY B, 2009, 113 (15) :5001-5006

[9] Fragile-to-strong liquid transition in deeply supercooled confined water [J].

Faraone, A ;

Liu, L ;

Mou, CY ;

Yen, CW ;

Chen, SH .

JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (22) :10843-10846

[10] Single particle dynamics of water confined in a hydrophobically modified MCM-41-S nanoporous matrix [J].

Faraone, Antonio ;

Liu, Kao-Hsiang ;

Mou, Chung-Yuan ;

Zhang, Yang ;

Chen, Sow-Hsin .

JOURNAL OF CHEMICAL PHYSICS, 2009, 130 (13)