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Volumn 112, Issue 44, 2008, Pages 13671-13675

Thermodynamic stability of interfacial gaseous states

Author keywords

[No Author keywords available]

Indexed keywords

CARBON; GASES; GRAPHITE; SUPERSATURATION; THERMODYNAMICS;

EID: 56349168881     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp807515f     Document Type: Article
Times cited : (61)

References (22)
  • 22
    • 84906361163 scopus 로고    scopus 로고
    • The change in the interfacial free energy upon removal of a gas layer on a solid in a liquid per unit area is ΔG, γsl- γsg-ylg, where γ is the interfacial free energy and the subscripts s, 1, and g refer to solid, liquid, and gas phases. Using the Young equation, ΔG, γlg- γlg cos θ, ylg(1, cos θ, The contact angle of water on freshly cleaved HOPG is ≈80° (cos θ ≈0.17, that of ethanol is small (cos θ ≈ 1, the surface free energy of water is about γlg, 72 mJ/m2, and that of ethanol is about γlg, 22 mJ/m2 for the experimental temperature. Substituting these numbers yields ΔGwater ≈-72(1, 0.17, 84 mJ/m2 and ΔGethanol; ≈-221, 1, 44 mJ/m2. All ethanol solutions have intermediate ΔG va
    • 2. All ethanol solutions have intermediate ΔG values. Now we know that micropancakes existed in water despite this greater incentive for micropancakes to disappear. The inevitable conclusion is that the interfacial free energy is of secondary importance.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.