Kenichiro Koga

Ph.D, Professor

  • 3119 Citations
  • 24 h-Index
19942019

Research output per year

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Research Output

  • 3119 Citations
  • 24 h-Index
  • 84 Article
  • 2 Editorial
  • 1 Comment/debate
  • 1 Review article
1994
12 Citations (Scopus)

Stability of polar guest-encaging clathrate hydrates

Koga, K., Tahaka, H. & Nakanishi, K., Jan 1 1994, In : The Journal of Chemical Physics. 101, 4, p. 3127-3134 8 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)
1996

Rearrangement dynamics of the hydrogen-bonded network of clathrate hydrates encaging polar guest

Koga, K. & Tanaka, H., Jan 1 1996, In : Journal of Chemical Physics. 104, 1, p. 263-272 10 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Rearrangement of the hydrogen-bonded network of the clathrate hydrates encaging polar guest

Koga, K., Tanaka, H. & Nakanishi, K., Jan 1 1996, In : Molecular Simulation. 16, 1-3, p. 151-165 15 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

RISM integral equation study of local solvation behavior of naphthalene in supercritical carbon dioxide

Koga, K., Tanaka, H. & Zeng, X. C., Oct 10 1996, In : Journal of Physical Chemistry. 100, 41, p. 16711-16719 9 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
1997

Freezing of confined water: A bilayer ice phase in hydrophobic nanopores

Kenichiro, K., Zeng, X. C. & Hideki, T., Jan 1 1997, In : Physical Review Letters. 79, 26, p. 5262-5265 4 p.

Research output: Contribution to journalArticle

179 Citations (Scopus)

Large thermal expansivity of clathrate hydrates

Tanaka, H., Tamai, Y. & Koga, K., Aug 14 1997, In : Journal of Physical Chemistry B. 101, 33, p. 6560-6565 6 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Scanning motions of an atomic force microscope tip in water

Koga, K. & Zeng, X. C., Jan 1 1997, In : Physical Review Letters. 79, 5, p. 853-856 4 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)

Solvent-induced interactions between hydrophobic and hydrophilic polyatomic sheets in water and hypothetical nonpolar water

Koga, K., Zeng, X. C. & Tanaka, H., Jun 15 1997, In : Journal of Chemical Physics. 106, 23, p. 9781-9792 12 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
1998

Effects of confinement on the phase behavior of supercooled water

Koga, K., Zeng, X. C. & Tanaka, H., Mar 20 1998, In : Chemical Physics Letters. 285, 3-4, p. 278-283 6 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Study of hydrophillic interactions between polyatomic sheets in water

Koga, K., Zeng, X. C. & Tanaka, H., Dec 1 1998, In : Fluid Phase Equilibria. 144, 1-2, p. 377-385 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Validity of Tolman's equation: How large should a droplet be?

Koga, K., Zeng, X. C. & Shchekin, A. K., Dec 1 1998, In : Journal of Chemical Physics. 109, 10, p. 4063-4070 8 p.

Research output: Contribution to journalArticle

120 Citations (Scopus)
1999

Can thin disk-like ice clusters be more stable than compact droplet-like ice clusters?

Tanaka, H., Yamamoto, R., Koga, K. & Zeng, X. C., May 7 1999, In : Chemical Physics Letters. 304, 5-6, p. 378-384 7 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
31 Citations (Scopus)

Discovery of two-dimensional ice - Peculiar structure predicted by computer simulation

Kouga, K., 1999, In : Chemistry. 54, p. 41-46 6 p.

Research output: Contribution to journalArticle

Imaging point defects in a liquid environment: a model afm study

Koga, K. & Zeng, X. C., Jan 1 1999, In : Physical Review B - Condensed Matter and Materials Physics. 60, 20, p. 14328-14333 6 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Thermodynamic expansion of nucleation free-energy barrier and size of critical nucleus near the vapor-liquid coexistence

Koga, K. & Zeng, X. C., Feb 15 1999, In : Journal of Chemical Physics. 110, 7, p. 3466-3471 6 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)
2000

First-order transition in confined water between high-density liquid and low-density amorphous phases

Koga, K., Tanaka, H. & Zeng, X. C., Nov 30 2000, In : Nature. 408, 6812, p. 564-567 4 p.

Research output: Contribution to journalArticle

252 Citations (Scopus)

Ice nanotube: what does the unit cell look like?

Koga, K., Parra, R. D., Tanaka, H. & Zeng, X. C., Sep 22 2000, In : Journal of Chemical Physics. 113, 12, p. 5037-5040 4 p.

Research output: Contribution to journalArticle

72 Citations (Scopus)
2001

Computer simulation of water-ice transition in hydrophobic nanopores

Slovák, J., Tanaka, H., Koga, K. & Zeng, X. C., Mar 15 2001, In : Physica A: Statistical Mechanics and its Applications. 292, 1-4, p. 87-101 15 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Correlation functions in decorated lattice models

Ispolatov, I., Koga, K. & Widom, B., Mar 1 2001, In : Physica A: Statistical Mechanics and its Applications. 291, 1-4, p. 49-59 11 p.

Research output: Contribution to journalArticle

Formation of ordered ice nanotubes inside carbon nanotubes

Koga, K., Gao, G. T., Tanaka, H. & Zeng, X. C., Aug 23 2001, In : Nature. 412, 6849, p. 802-805 4 p.

Research output: Contribution to journalArticle

836 Citations (Scopus)
2002

Correlation between hydrophobic attraction and the free energy of hydrophobic hydration

Koga, K., Bhimalapuram, P. & Widom, B., Dec 20 2002, In : Molecular Physics. 100, 24, p. 3795-3801 7 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

How does water freeze inside carbon nanotubes?

Koga, K., Gao, G. T., Tanaka, H. & Zeng, X. C., Dec 1 2002, In : Physica A: Statistical Mechanics and its Applications. 314, 1-4, p. 462-469 8 p.

Research output: Contribution to journalArticle

75 Citations (Scopus)

Solvation forces and liquid-solid phase equilibria for water confined between hydrophobic surfaces

Koga, K., Jun 22 2002, In : Journal of Chemical Physics. 116, 24, p. 10882-10889 8 p.

Research output: Contribution to journalArticle

34 Citations (Scopus)
2003

Ab initio studies of quasi-one-dimensional pentagon and hexagon ice nanotubes

Bai, J., Su, C. R., Parra, R. D., Zeng, X. C., Tanaka, H., Koga, K. & Li, J. M., Mar 1 2003, In : Journal of Chemical Physics. 118, 9, p. 3913-3916 4 p.

Research output: Contribution to journalArticle

43 Citations (Scopus)

Computer simulation of bilayer ice: Structures and thermodynamics

Slovák, J., Tanaka, H., Koga, K. & Zeng, X. C., Mar 1 2003, In : Physica A: Statistical Mechanics and its Applications. 319, p. 163-174 12 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

Formation of quasi two-dimensional bilayer ice in hydrophobic slits: A possible candidate for ice XIII?

Bai, J., Zeng, X. C., Koga, K. & Tanaka, H., Aug 1 2003, In : Molecular Simulation. 29, 10-11, p. 619-626 8 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Freezing in one-dimensional liquids

Koga, K., May 1 2003, In : Journal of Chemical Physics. 118, 17, p. 7973-7980 8 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

The hydrophobic effect

Widom, B., Bhimalapuram, P. & Koga, K., Aug 1 2003, In : Physical Chemistry Chemical Physics. 5, 15, p. 3085-3093 9 p.

Research output: Contribution to journalReview article

210 Citations (Scopus)
2004

Comment on "The hydrophobic effect" by B. Widom, P. Bhimalapuram and K. Koga, Phys. Chem. Chem. Phys., 2003, 5, 3085

Graziano, G., Widom, B., Bhimalapuram, P. & Koga, K., Sep 21 2004, In : Physical Chemistry Chemical Physics. 6, 18, p. 4527-4530 4 p.

Research output: Contribution to journalComment/debate

2 Citations (Scopus)

Hydrophobic effect in the pressure-temperature plane

Koga, K., Oct 15 2004, In : Journal of Chemical Physics. 121, 15, p. 7304-7312 9 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

On the thermodynamic stability of clathrate hydrates IV: Double occupancy of cages

Tanaka, H., Nakatsuka, T. & Koga, K., Sep 15 2004, In : Journal of Chemical Physics. 121, 11, p. 5488-5493 6 p.

Research output: Contribution to journalArticle

55 Citations (Scopus)

Reply to Comment on The hydrophobic effect by G. Graziano

Kouga, K., 2004, In : Phys. Chem. Chem. Phys.. 6, p. 4529-4530 2 p.

Research output: Contribution to journalArticle

2005

Formation of ice nanotube with hydrophobic guests inside carbon nanotube

Tanaka, H. & Koga, K., Sep 1 2005, In : Journal of Chemical Physics. 123, 9, 094706.

Research output: Contribution to journalArticle

28 Citations (Scopus)

On the thermodynamic stability and structural transition of clathrate hydrates

Koyama, Y., Tanaka, H. & Koga, K., Aug 5 2005, In : Journal of Chemical Physics. 122, 7, 074503.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Phase diagram of water between hydrophobic surfaces

Koga, K. & Tanaka, H., Mar 8 2005, In : Journal of Chemical Physics. 122, 10, 104711.

Research output: Contribution to journalArticle

104 Citations (Scopus)
2006

Close-packed structures and phase diagram of soft spheres in cylindrical pores

Koga, K. & Tanaka, H., Apr 7 2006, In : Journal of Chemical Physics. 124, 13, 131103.

Research output: Contribution to journalArticle

29 Citations (Scopus)

Line adsorption in a mean-field density-functional model

Koga, K. & Widom, B., Nov 1 2006, In : Molecular Physics. 104, 22-24, p. 3469-3477 9 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Theoretical studies on the structure and dynamics of water, ice, and clathrate hydrate

Tanaka, H. & Koga, K., Nov 20 2006, In : Bulletin of the Chemical Society of Japan. 79, 11, p. 1621-1644 24 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2007

Line and boundary tensions on approach to the wetting transition

Koga, K. & Widom, B., Aug 20 2007, In : Journal of Chemical Physics. 127, 6, 064704.

Research output: Contribution to journalArticle

12 Citations (Scopus)

On the thermodynamic stability of hydrogen clathrate hydrates

Katsumasa, K., Koga, K. & Tanaka, H., Aug 8 2007, In : Journal of Chemical Physics. 127, 4, 044509.

Research output: Contribution to journalArticle

59 Citations (Scopus)

Phase equilibria and interfacial tension of fluids confined in narrow pores

Hamada, Y., Koga, K. & Tanaka, H., Sep 7 2007, In : Journal of Chemical Physics. 127, 8, 084908.

Research output: Contribution to journalArticle

62 Citations (Scopus)

Structures of filled ice nanotubes inside carbon nanotubes

Takaiwa, D., Koga, K. & Tanaka, H., Jan 1 2007, In : Molecular Simulation. 33, 1-2, p. 127-132 6 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)
2008

A plastic phase of water from computer simulation

Takii, Y., Koga, K. & Tanaka, H., Jun 6 2008, In : Journal of Chemical Physics. 128, 20, 204501.

Research output: Contribution to journalArticle

35 Citations (Scopus)

Mean-field density-functional model of a second-order wetting transition

Koga, K. & Widom, B., Mar 28 2008, In : Journal of Chemical Physics. 128, 11, 114716.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Phase diagram of water in carbon nanotubes

Takaiwa, D., Hatano, I., Koga, K. & Tanaka, H., Jan 8 2008, In : Proceedings of the National Academy of Sciences of the United States of America. 105, 1, p. 39-43 5 p.

Research output: Contribution to journalArticle

207 Citations (Scopus)
2009

Augmented stability of hydrogen clathrate hydrates by weakly polar molecules

Nakayama, T., Koga, K. & Tanaka, H., Dec 21 2009, In : Journal of Chemical Physics. 131, 21, 214506.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Phase behavior and fluid-solid surface tension of argon in slit pores and carbon nanotubes

Hamada, Y., Koga, K. & Tanaka, H., Jun 15 2009, In : Physica A: Statistical Mechanics and its Applications. 388, 12, p. 2289-2298 10 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2010

First- and second-order wetting transitions at liquid-vapor interfaces

Koga, K., Indekeu, J. O. & Widom, B., Aug 9 2010, In : Faraday Discussions. 146, p. 217-222 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)