Hydrate Formation at the Methane/Water Interface on the Molecular Scale

被引：29

作者：

Koga, Tadanori ^{[1
,2
]}

Wong, Johnny ^{[1
]}

Endoh, Maya K. ^{[2
]}

Mahajan, Devinder ^{[1
,2
,3
]}

Gutt, Christian ^{[4
]}

Satija, Sushil K. ^{[5
]}

机构：

[1] SUNY Stony Brook, Chem & Mol Engn Program, Stony Brook, NY 11794 USA

[2] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA

[3] Brookhaven Natl Lab, Energy Sci & Technol Dept, Upton, NY 11973 USA

[4] DESY, HASYLAB, D-22603 Hamburg, Germany

[5] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

来源：

LANGMUIR | 2010年 / 26卷 / 07期

关键词：

LIQUID WATER; FILM GROWTH;

D O I：

10.1021/la1004853

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the nucleation process of methane hydrate on the molecular scale. A stationary planar interface separating methane gas and liquid water was studied by using in situ neutron reflectivity. We found that the angstrom-scale surface roughening is triggered as soon as the water phase contacts methane gas under the hydrate forming conditions. In addition, it was found that the microscopic surface structure remains unchanged until a macroscopic hydrate film is developed at the interface. We therefore postulate that the angstrom-scale surface roughening is attributed to the formation of microscopic hydrate "embryos" in a "dynamic equilibrium" manner.

引用

页码：4627 / 4630

页数：4

共 50 条

[1] Molecular dynamics study of methane hydrate formation at a water/methane interface
Zhang, Junfang
Hawtin, R. W.
Yang, Ye
Nakagava, Edson
Rivero, M.
Choi, S. K.
Rodger, P. M.
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (34): : 10608 - 10618
[2] Methane hydrate formation at the interface between methane and water phases
Koga, Tadanori
Fourman, D.
Bryant, J.
Wong, J.
Eaton, M.
Koo, J.
Endoh, M. K.
Jerome, J.
Satija, S.
Rafailovich, M. H.
Mahajan, D.
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2007, 234
[3] Gas hydrate nucleation and cage formation at a water/methane interface
Hawtin, Robert W.
Quigley, David
Rodger, P. Mark
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2008, 10 (32) : 4853 - 4864
[4] Molecular measurements of methane hydrate formation
Subramanian, S
Sloan, ED
[J]. FLUID PHASE EQUILIBRIA, 1999, 158 : 813 - 820
[5] Molecular Mechanisms for Cyclodextrin-Promoted Methane Hydrate Formation in Water
Ji, Haoqing
Chen, Daoyi
Wu, Guozhong
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2017, 121 (38): : 20967 - 20975
[6] Effect of Bubble Formation on the Dissociation of Methane Hydrate in Water: A Molecular Dynamics Study
Yagasaki, Takuma
Matsumoto, Masakazu
Andoh, Yoshimichi
Okazaki, Susumu
Tanaka, Hideki
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2014, 118 (07): : 1900 - 1906
[7] Kinetics of methane hydrate formation in pure water
Qiu, Junhong
Guo, Tianmin
[J]. Huagong Xuebao/Journal of Chemical Industry and Engineering (China), 1998, 49 (03): : 383 - 386
[8] Nonstationary absorption of methane by water before the methane hydrate formation
Afanas'ev, I.S.
Bezverkhij, P.P.
Martynets, V.G.
Matizen, E.V.
[J]. Doklady Akademii Nauk, 2001, 381 (04) : 499 - 502
[9] Methane Hydrate Formation in the Salty Water Confined in Clay Nanopores: A Molecular Simulation Study
He, Zhongjin
Mi, Fengyi
Ning, Fulong
Pang, Jiangtao
Jiang, Guosheng
[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2022, 10 (18): : 6128 - 6140
[10] Heterogeneity properties of methane hydrate formation in a pilot-scale hydrate simulator
Wan, Qing-Cui
Si, Hu
Li, Gang
Feng, Jing-Chun
Li, Bo
[J]. APPLIED ENERGY, 2020, 261

← 1 2 3 4 5 →