Blue membranes

Sulfonated copper(II) phthalocyanine tetrasulfonic acid based composite membranes for DMFC and low relative humidity PEMFC

N. Nambi Krishnan, Dirk Henkensmeier, Young Hee Park, Jong Hyun Jang, Taehoon Kwon, Chong Min Koo, Hyoung Juhn Kim, Jonghee Han, SukWoo Nam

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Polymer electrolyte membranes (PEMs) consisting of copper(II)phthalocyanine tetrasulfonic acid tetrasodium salt (CuPCSA) and disulfonated poly(arylene ether sulfone) (SES0005) are prepared. The TEM analysis results prove the incorporation of CuPCSA as nanoparticles into the composite membranes. Catalytic activity of CuPCSA towards peroxide degradation is shown by CV. Addition of CuPCSA increases the dimensional stability in contact with water (18% vs. 43% linear swelling for pristine SES0005). Addition of 10wt% CuPCSA (SES0005-IM10) increases the proton conductivity four fold to 16.8mScm-1 at 120°C and 50% relative humidity (rh). Activation energy decreases with CuPCSA content, reducing the conductivity's temperature dependence. Membranes were tested in low and medium temperature PEM fuel cells at 65 and 120°C, respectively, at 50% rh. In the LT-PEMFC, 40μm thick SES0005-IM10 and Nafion 212 based MEAs exhibited current densities of 470 and 454mAcm-2 at 0.7V, respectively. In the MT-PEMFC, SES0005-IM10 based MEAs demonstrated a current density of 405mAcm-2 at 0.5V, 2.4 folds more than pristine membrane based MEAs. In the DMFC, SES0005-IM10 enabled a peak power density of 153mWcm-2 at 70°C and 1M methanol feed, 20% higher than Nafion 212, 38% higher than mPES60.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalJournal of Membrane Science
Volume502
DOIs
Publication statusPublished - 2016 Mar 15

Fingerprint

Direct methanol fuel cells (DMFC)
Composite membranes
Proton exchange membrane fuel cells (PEMFC)
Humidity
humidity
Copper
Atmospheric humidity
membranes
Membranes
copper
acids
Acids
composite materials
Current density
Electrolytes
Polymers
Sulfones
Proton conductivity
Dimensional stability
Peroxides

Keywords

  • Composite membrane
  • Copper(II)phthalocyanine tetrasulfonic acid tetrasodium salt
  • DMFC
  • Hydrocarbon membrane
  • PEMFC

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

Blue membranes : Sulfonated copper(II) phthalocyanine tetrasulfonic acid based composite membranes for DMFC and low relative humidity PEMFC. / Krishnan, N. Nambi; Henkensmeier, Dirk; Park, Young Hee; Jang, Jong Hyun; Kwon, Taehoon; Koo, Chong Min; Kim, Hyoung Juhn; Han, Jonghee; Nam, SukWoo.

In: Journal of Membrane Science, Vol. 502, 15.03.2016, p. 1-10.

Research output: Contribution to journalArticle

Krishnan, N. Nambi ; Henkensmeier, Dirk ; Park, Young Hee ; Jang, Jong Hyun ; Kwon, Taehoon ; Koo, Chong Min ; Kim, Hyoung Juhn ; Han, Jonghee ; Nam, SukWoo. / Blue membranes : Sulfonated copper(II) phthalocyanine tetrasulfonic acid based composite membranes for DMFC and low relative humidity PEMFC. In: Journal of Membrane Science. 2016 ; Vol. 502. pp. 1-10.
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abstract = "Polymer electrolyte membranes (PEMs) consisting of copper(II)phthalocyanine tetrasulfonic acid tetrasodium salt (CuPCSA) and disulfonated poly(arylene ether sulfone) (SES0005) are prepared. The TEM analysis results prove the incorporation of CuPCSA as nanoparticles into the composite membranes. Catalytic activity of CuPCSA towards peroxide degradation is shown by CV. Addition of CuPCSA increases the dimensional stability in contact with water (18{\%} vs. 43{\%} linear swelling for pristine SES0005). Addition of 10wt{\%} CuPCSA (SES0005-IM10) increases the proton conductivity four fold to 16.8mScm-1 at 120°C and 50{\%} relative humidity (rh). Activation energy decreases with CuPCSA content, reducing the conductivity's temperature dependence. Membranes were tested in low and medium temperature PEM fuel cells at 65 and 120°C, respectively, at 50{\%} rh. In the LT-PEMFC, 40μm thick SES0005-IM10 and Nafion 212 based MEAs exhibited current densities of 470 and 454mAcm-2 at 0.7V, respectively. In the MT-PEMFC, SES0005-IM10 based MEAs demonstrated a current density of 405mAcm-2 at 0.5V, 2.4 folds more than pristine membrane based MEAs. In the DMFC, SES0005-IM10 enabled a peak power density of 153mWcm-2 at 70°C and 1M methanol feed, 20{\%} higher than Nafion 212, 38{\%} higher than mPES60.",
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AU - Henkensmeier, Dirk

AU - Park, Young Hee

AU - Jang, Jong Hyun

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AU - Koo, Chong Min

AU - Kim, Hyoung Juhn

AU - Han, Jonghee

AU - Nam, SukWoo

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N2 - Polymer electrolyte membranes (PEMs) consisting of copper(II)phthalocyanine tetrasulfonic acid tetrasodium salt (CuPCSA) and disulfonated poly(arylene ether sulfone) (SES0005) are prepared. The TEM analysis results prove the incorporation of CuPCSA as nanoparticles into the composite membranes. Catalytic activity of CuPCSA towards peroxide degradation is shown by CV. Addition of CuPCSA increases the dimensional stability in contact with water (18% vs. 43% linear swelling for pristine SES0005). Addition of 10wt% CuPCSA (SES0005-IM10) increases the proton conductivity four fold to 16.8mScm-1 at 120°C and 50% relative humidity (rh). Activation energy decreases with CuPCSA content, reducing the conductivity's temperature dependence. Membranes were tested in low and medium temperature PEM fuel cells at 65 and 120°C, respectively, at 50% rh. In the LT-PEMFC, 40μm thick SES0005-IM10 and Nafion 212 based MEAs exhibited current densities of 470 and 454mAcm-2 at 0.7V, respectively. In the MT-PEMFC, SES0005-IM10 based MEAs demonstrated a current density of 405mAcm-2 at 0.5V, 2.4 folds more than pristine membrane based MEAs. In the DMFC, SES0005-IM10 enabled a peak power density of 153mWcm-2 at 70°C and 1M methanol feed, 20% higher than Nafion 212, 38% higher than mPES60.

AB - Polymer electrolyte membranes (PEMs) consisting of copper(II)phthalocyanine tetrasulfonic acid tetrasodium salt (CuPCSA) and disulfonated poly(arylene ether sulfone) (SES0005) are prepared. The TEM analysis results prove the incorporation of CuPCSA as nanoparticles into the composite membranes. Catalytic activity of CuPCSA towards peroxide degradation is shown by CV. Addition of CuPCSA increases the dimensional stability in contact with water (18% vs. 43% linear swelling for pristine SES0005). Addition of 10wt% CuPCSA (SES0005-IM10) increases the proton conductivity four fold to 16.8mScm-1 at 120°C and 50% relative humidity (rh). Activation energy decreases with CuPCSA content, reducing the conductivity's temperature dependence. Membranes were tested in low and medium temperature PEM fuel cells at 65 and 120°C, respectively, at 50% rh. In the LT-PEMFC, 40μm thick SES0005-IM10 and Nafion 212 based MEAs exhibited current densities of 470 and 454mAcm-2 at 0.7V, respectively. In the MT-PEMFC, SES0005-IM10 based MEAs demonstrated a current density of 405mAcm-2 at 0.5V, 2.4 folds more than pristine membrane based MEAs. In the DMFC, SES0005-IM10 enabled a peak power density of 153mWcm-2 at 70°C and 1M methanol feed, 20% higher than Nafion 212, 38% higher than mPES60.

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