Synthesis and proton transport property of poly(aspartic acid) thin film on SiO2 substrate

Yuki Nagao; Fumitada Iguchi; Noriko Sata; Hiroo Yugami

doi:10.1016/j.ssi.2009.03.011

Synthesis and proton transport property of poly(aspartic acid) thin film on SiO₂ substrate

Yuki Nagao, Fumitada Iguchi, Noriko Sata, Hiroo Yugami

ENG - Mechanical Systems Engineering

Tohoku University

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Poly(aspartic acid) and its thin film were synthesized to study proton transport properties. The average degree of polymerization and molecular weight are 50 and 7000, respectively. The proton conductivities of the Poly(aspartic acid) and its thin film were 4.3 × 10^{- 4} and 5.1 × 10^{- 3} S cm^{- 1}, respectively under the relative humidity of 70% and 298 K. The proton conductivity of the thin film is one order of magnitude higher than that of the pelletized Poly(aspartic acid). The activation energies for the proton conduction of the pelletized Poly(aspartic acid) and thin film are 0.65 and 0.53 eV, respectively. The open circuit voltage of the pelletized sample exhibited ~ 0.9 V under the relative humidity of 70% and 298 K.

Original language	English
Pages (from-to)	206-209
Number of pages	4
Journal	Solid State Ionics
Volume	181
Issue number	3-4
DOIs	https://doi.org/10.1016/j.ssi.2009.03.011
Publication status	Published - 2010 Feb 24

Keywords

Proton conduction
Thin films

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10.1016/j.ssi.2009.03.011

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title = "Synthesis and proton transport property of poly(aspartic acid) thin film on SiO2 substrate",

abstract = "Poly(aspartic acid) and its thin film were synthesized to study proton transport properties. The average degree of polymerization and molecular weight are 50 and 7000, respectively. The proton conductivities of the Poly(aspartic acid) and its thin film were 4.3 × 10- 4 and 5.1 × 10- 3 S cm- 1, respectively under the relative humidity of 70% and 298 K. The proton conductivity of the thin film is one order of magnitude higher than that of the pelletized Poly(aspartic acid). The activation energies for the proton conduction of the pelletized Poly(aspartic acid) and thin film are 0.65 and 0.53 eV, respectively. The open circuit voltage of the pelletized sample exhibited ~ 0.9 V under the relative humidity of 70% and 298 K.",

keywords = "Proton conduction, Thin films",

author = "Yuki Nagao and Fumitada Iguchi and Noriko Sata and Hiroo Yugami",

note = "Funding Information: The authors thank M. Sasaki for helping the synthesis of the proton-conductive amides and thank Dr. H. Maekawa and M. Ando for giving me a chance to measure the NMR spectra. This study was supported by Program for Improvement of Research Environment for Young Researchers from Special Coordination Funds for Promoting Science and Technology (SCF) commissioned by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.",

year = "2010",

month = feb,

day = "24",

doi = "10.1016/j.ssi.2009.03.011",

language = "English",

volume = "181",

pages = "206--209",

journal = "Solid State Ionics",

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T1 - Synthesis and proton transport property of poly(aspartic acid) thin film on SiO2 substrate

AU - Nagao, Yuki

AU - Iguchi, Fumitada

AU - Sata, Noriko

AU - Yugami, Hiroo

N1 - Funding Information: The authors thank M. Sasaki for helping the synthesis of the proton-conductive amides and thank Dr. H. Maekawa and M. Ando for giving me a chance to measure the NMR spectra. This study was supported by Program for Improvement of Research Environment for Young Researchers from Special Coordination Funds for Promoting Science and Technology (SCF) commissioned by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.

PY - 2010/2/24

Y1 - 2010/2/24

N2 - Poly(aspartic acid) and its thin film were synthesized to study proton transport properties. The average degree of polymerization and molecular weight are 50 and 7000, respectively. The proton conductivities of the Poly(aspartic acid) and its thin film were 4.3 × 10- 4 and 5.1 × 10- 3 S cm- 1, respectively under the relative humidity of 70% and 298 K. The proton conductivity of the thin film is one order of magnitude higher than that of the pelletized Poly(aspartic acid). The activation energies for the proton conduction of the pelletized Poly(aspartic acid) and thin film are 0.65 and 0.53 eV, respectively. The open circuit voltage of the pelletized sample exhibited ~ 0.9 V under the relative humidity of 70% and 298 K.

AB - Poly(aspartic acid) and its thin film were synthesized to study proton transport properties. The average degree of polymerization and molecular weight are 50 and 7000, respectively. The proton conductivities of the Poly(aspartic acid) and its thin film were 4.3 × 10- 4 and 5.1 × 10- 3 S cm- 1, respectively under the relative humidity of 70% and 298 K. The proton conductivity of the thin film is one order of magnitude higher than that of the pelletized Poly(aspartic acid). The activation energies for the proton conduction of the pelletized Poly(aspartic acid) and thin film are 0.65 and 0.53 eV, respectively. The open circuit voltage of the pelletized sample exhibited ~ 0.9 V under the relative humidity of 70% and 298 K.

KW - Proton conduction

KW - Thin films

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DO - 10.1016/j.ssi.2009.03.011

M3 - Article

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SN - 0167-2738

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EP - 209

JO - Solid State Ionics

JF - Solid State Ionics

IS - 3-4

ER -

Synthesis and proton transport property of poly(aspartic acid) thin film on SiO₂ substrate

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Keywords

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