Observation of two-step nucleation in methanehydrates

文献情報

出版日 2010-10-18

DOI 10.1039/C0CP00551G

インパクトファクター 3.676

著者

Jenel Vatamanu, Peter G. Kusalik

原文を見る

要旨

In this work we show that homogeneous nucleation of methane hydrate can, under appropriate conditions, be a very rapid process, achieved within tens of nanoseconds. In agreement with recent experimental results on different systems, we find that the nucleation of a gas hydrate crystal appears as a two-step process. It starts with the formation of disordered solid-like structures, which will then spontaneously evolve to more recognizable crystalline forms. This previously elusive first-stage state is confirmed to be post-critical in the nucleation process, and is characterized as processing reasonable short-range structure but essentially no long-range order. Its energy, molecular diffusion and local structure reflect a solid-like character, although it does exhibit mobility over longer (tens of ns) timescales. We provide insights into the controversial issue of memory effects in methane hydrates. We show that areas locally richer in methane will nucleate much more readily, and no ‘memory’ of the crystal is required for fast re-crystallization. We anticipate that much richer polycrystallinity and novel methane hydrate phases could be possible.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Observation of two-step nucleation in methanehydrates

文献情報

おすすめジャーナル

関連文献

g-C3N4 templated synthesis of the Fe3C@NSC electrocatalyst enriched with Fe–Nx active sites for efficient oxygen reduction reaction

Nanostructured hydrotreating catalysts for electrochemical hydrogen evolution

Self-produced bubble-template synthesis of La2O3:Yb/Er@Au hollow spheres with markedly enhanced luminescence and release properties

Effects of a side chain sequence on surface segregation of regioregular poly(3-alkylthiophene) and interfacial modification of bilayer organic photovoltaic devices

Facile synthesis of Pd–Pt alloy concave nanocubes with high-index facets as electrocatalysts for methanol oxidation

Freestanding interconnected nanocluster textiles for efficient oxygen evolution reaction

Polymeric carbon nitride-based photocatalysts for photoreforming of biomass derivatives

Podoviridae bacteriophage for the biocontrol of Pseudomonas aeruginosa in rainwater

Electron distribution tuning of fluorine-doped carbon for ammonia electrosynthesis

Hierarchical nanohoneycomb-like CoMoO4–MnO2 core–shell and Fe2O3 nanosheet arrays on 3D graphene foam with excellent supercapacitive performance

こちらもおすすめ

オステニ二甲磺酸塩に適用される法規ガイドラインは何ですか？

環丁基肼盐酸盐は安全ですか？

N-(4-パリドン基ソニルフェニル)硫代イソシアネートを取り扱う際の実験室安全事項は何ですか？

5-ヒドロキシ-1,3-ジヒドロ-2H-インドン-2-酮の物理化学的性質は何ですか？

O-苄基-D-丝氨醇はどのように合成されますか？

ナトリウム3-ヒドロキシbutano酸とは何ですか？

1-(二苯甲基)-4-甲基ベンゼンの物理化学的性質は何ですか？

ネアミン塩酸塩の物理化学的性質は何ですか？

偶氮二甲酰二哌啶の主な用途は何ですか？

LF3はどのように保存すればよいですか？

掲載誌

Physical Chemistry Chemical Physics

おすすめ化合物

1-(Pyrazin-2-yl)urea

2-(Bromomethyl)-4-methyl-1-nitrobenzene

7-(Bromomethyl)-1-methyl-1H-indazole

4-Butoxy-2-chlorobenzoic acid

3-Fluoro-6-methoxy-2-pyridinamine

おすすめサプライヤー