Dielectric and Sorption Responses of Hydrogen-Bonding Network of Amorphous C60(OH)12 and C60(OH)36

Shota Uchikawa; Ayumi Kawasaki; Norihisa Hoshino; Takashi Takeda; Shin Ichiro Noro; Kiyonori Takahashi; Takayoshi Nakamura; Nozomi Sato; Ken Kokubo; Hidehiro Sakurai; Tomoyuki Akutagawa

doi:10.1021/acs.jpcc.9b06951

Dielectric and Sorption Responses of Hydrogen-Bonding Network of Amorphous C₆₀(OH)₁₂ and C₆₀(OH)₃₆

Shota Uchikawa, Ayumi Kawasaki, Norihisa Hoshino, Takashi Takeda, Shin Ichiro Noro, Kiyonori Takahashi, Takayoshi Nakamura, Nozomi Sato, Ken Kokubo, Hidehiro Sakurai, Tomoyuki Akutagawa

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Abstract

Hydrophilic fullerene derivatives of C₆₀(OH)₁₂ (1) and C₆₀(OH)₃₆ (2) bearing different numbers of -OH groups formed amorphous solids of 1·x(H₂O) (x = 5-10) and 2·x(H₂O) (x = 15-22), respectively, according to the humidity. The thermally activated dynamic molecular motion of polar H₂O was confirmed in the DSC and dielectric spectra. Three-dimensional O-H···O hydrogen-bonding networks in amorphous 1 and 2 produced extrinsic adsorption-desorption pores with a hydrophilic environment posed by -OH groups, where N₂, CO₂, H₂, and CH₄ gases vapors and polar H₂O, MeOH, and EtOH molecules reversibly adsorbed into the networks. The molecular motion of polar H₂O was directly observed in dielectric enhancement and protonic conductivity in three-dimensional O-H···O hydrogen-bonding networks. The Brunauer-Emmett-Teller (BET) specific surface areas of amorphous 1 and 2 were 315 and 351 m² g^-1, respectively, from the CO₂ sorption isotherms. Reversible vapor sorption behaviors with structural changes of amorphous 1 and 2 were also confirmed for the polar H₂O, MeOH, and EtOH.

Original language	English
Journal	Journal of Physical Chemistry C
DOIs	https://doi.org/10.1021/acs.jpcc.9b06951
Publication status	Accepted/In press - 2019

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy(all)
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.9b06951

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@article{21d3c8b31ea549e4a2e7cf28c0445b89,

title = "Dielectric and Sorption Responses of Hydrogen-Bonding Network of Amorphous C60(OH)12 and C60(OH)36 ",

abstract = "Hydrophilic fullerene derivatives of C60(OH)12 (1) and C60(OH)36 (2) bearing different numbers of -OH groups formed amorphous solids of 1·x(H2O) (x = 5-10) and 2·x(H2O) (x = 15-22), respectively, according to the humidity. The thermally activated dynamic molecular motion of polar H2O was confirmed in the DSC and dielectric spectra. Three-dimensional O-H···O hydrogen-bonding networks in amorphous 1 and 2 produced extrinsic adsorption-desorption pores with a hydrophilic environment posed by -OH groups, where N2, CO2, H2, and CH4 gases vapors and polar H2O, MeOH, and EtOH molecules reversibly adsorbed into the networks. The molecular motion of polar H2O was directly observed in dielectric enhancement and protonic conductivity in three-dimensional O-H···O hydrogen-bonding networks. The Brunauer-Emmett-Teller (BET) specific surface areas of amorphous 1 and 2 were 315 and 351 m2 g-1, respectively, from the CO2 sorption isotherms. Reversible vapor sorption behaviors with structural changes of amorphous 1 and 2 were also confirmed for the polar H2O, MeOH, and EtOH.",

author = "Shota Uchikawa and Ayumi Kawasaki and Norihisa Hoshino and Takashi Takeda and Noro, {Shin Ichiro} and Kiyonori Takahashi and Takayoshi Nakamura and Nozomi Sato and Ken Kokubo and Hidehiro Sakurai and Tomoyuki Akutagawa",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research on Innovative Areas Kiban Kenkyu (A) (JP19H00886), Japan Science and Technology Agency CREST Grant JPMJCR18I4, and “Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials” from the Ministry of Education, Culture, Sports, Science and Technology. Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

doi = "10.1021/acs.jpcc.9b06951",

language = "English",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

}

TY - JOUR

T1 - Dielectric and Sorption Responses of Hydrogen-Bonding Network of Amorphous C60(OH)12 and C60(OH)36

AU - Uchikawa, Shota

AU - Kawasaki, Ayumi

AU - Hoshino, Norihisa

AU - Takeda, Takashi

AU - Noro, Shin Ichiro

AU - Takahashi, Kiyonori

AU - Nakamura, Takayoshi

AU - Sato, Nozomi

AU - Kokubo, Ken

AU - Sakurai, Hidehiro

AU - Akutagawa, Tomoyuki

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research on Innovative Areas Kiban Kenkyu (A) (JP19H00886), Japan Science and Technology Agency CREST Grant JPMJCR18I4, and “Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials” from the Ministry of Education, Culture, Sports, Science and Technology. Publisher Copyright: Copyright © 2019 American Chemical Society.

PY - 2019

Y1 - 2019

N2 - Hydrophilic fullerene derivatives of C60(OH)12 (1) and C60(OH)36 (2) bearing different numbers of -OH groups formed amorphous solids of 1·x(H2O) (x = 5-10) and 2·x(H2O) (x = 15-22), respectively, according to the humidity. The thermally activated dynamic molecular motion of polar H2O was confirmed in the DSC and dielectric spectra. Three-dimensional O-H···O hydrogen-bonding networks in amorphous 1 and 2 produced extrinsic adsorption-desorption pores with a hydrophilic environment posed by -OH groups, where N2, CO2, H2, and CH4 gases vapors and polar H2O, MeOH, and EtOH molecules reversibly adsorbed into the networks. The molecular motion of polar H2O was directly observed in dielectric enhancement and protonic conductivity in three-dimensional O-H···O hydrogen-bonding networks. The Brunauer-Emmett-Teller (BET) specific surface areas of amorphous 1 and 2 were 315 and 351 m2 g-1, respectively, from the CO2 sorption isotherms. Reversible vapor sorption behaviors with structural changes of amorphous 1 and 2 were also confirmed for the polar H2O, MeOH, and EtOH.

AB - Hydrophilic fullerene derivatives of C60(OH)12 (1) and C60(OH)36 (2) bearing different numbers of -OH groups formed amorphous solids of 1·x(H2O) (x = 5-10) and 2·x(H2O) (x = 15-22), respectively, according to the humidity. The thermally activated dynamic molecular motion of polar H2O was confirmed in the DSC and dielectric spectra. Three-dimensional O-H···O hydrogen-bonding networks in amorphous 1 and 2 produced extrinsic adsorption-desorption pores with a hydrophilic environment posed by -OH groups, where N2, CO2, H2, and CH4 gases vapors and polar H2O, MeOH, and EtOH molecules reversibly adsorbed into the networks. The molecular motion of polar H2O was directly observed in dielectric enhancement and protonic conductivity in three-dimensional O-H···O hydrogen-bonding networks. The Brunauer-Emmett-Teller (BET) specific surface areas of amorphous 1 and 2 were 315 and 351 m2 g-1, respectively, from the CO2 sorption isotherms. Reversible vapor sorption behaviors with structural changes of amorphous 1 and 2 were also confirmed for the polar H2O, MeOH, and EtOH.

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DO - 10.1021/acs.jpcc.9b06951

M3 - Article

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JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

ER -

Dielectric and Sorption Responses of Hydrogen-Bonding Network of Amorphous C₆₀(OH)₁₂ and C₆₀(OH)₃₆

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