Interaction of the Helium, Hydrogen, Air, Argon, and Nitrogen Bubbles with Graphite Surface in Water

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73584366" target="_blank" >RIV/61989592:15310/17:73584366 - isvavai.cz</a>

Result on the web

<a href="http://pubs.acs.org/doi/full/10.1021/acsami.6b16493" target="_blank" >http://pubs.acs.org/doi/full/10.1021/acsami.6b16493</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsami.6b16493" target="_blank" >10.1021/acsami.6b16493</a>

Result language

angličtina

Original language name

Interaction of the Helium, Hydrogen, Air, Argon, and Nitrogen Bubbles with Graphite Surface in Water

Original language description

The interaction of the confined gas with solid Surface immersed in water is a common theme of many important fields such as self-cleaning surface, gas storage, and sensing. For that reason, we investigated the gas-graphite interaction in the water medium. The graphite surface was prepared by mechanical exfoliation of highly oriented pyrolytic graphite (HOPG). The surface chemistry and morphology were studied by X-ray photoelectron spectroscopy, profilometry, and atomic force microscopy. The surface energy of HOPG was estimated by contact angle measurements using the Owens-Wendt method. The interaction of gases (Ar, He, H-2, N-2, and air) with graphite was studied by a captive bubble method, in. which the gas bubble was in.contact with the exfoliated graphite surface in water media. The, experimental data were corroborated by molecular dynamics simulations and density,functional theory calculations. The surface energy of HOPG equaled to 52.8 mJ/m(2) and more of 95% of the surface energy was attributed to dispersion interactions. The results On gas-surface interaction indicated that HOPG surface had gasphilic behavior for helium and hydrogen, while gasphobic behavior for argon and nitrogen. The results showed that the variation of the gas contact angle was related to the balance between the gas-surface and gas-gas interaction potentials. For helium and hydrogen the gas-surface interaction was particularly high compared to gas-gas interaction and this promoted the favorable interaction with graphite surface.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ACS Applied Materials &amp; Interfaces

ISSN

1944-8244

e-ISSN

—

Volume of the periodical

9

Issue of the periodical within the volume

20

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

17518-17526

UT code for WoS article

000402498600083

EID of the result in the Scopus database

2-s2.0-85019771653