Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Ali Javed
  • Ina Strauss
  • Hana Bunzen
  • Jürgen Caro
  • Michael Tiemann

Organisationseinheiten

Externe Organisationen

  • Universität Paderborn
  • Universität Augsburg
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer1263
Seiten (von - bis)1-9
Seitenumfang9
FachzeitschriftNanomaterials
Jahrgang10
Ausgabenummer7
Frühes Online-Datum28 Juni 2020
PublikationsstatusVeröffentlicht - Juli 2020

Abstract

Large Co-MOF-74 crystals of a few hundred micrometers were prepared by solvothermal synthesis, and their structure and morphology were characterized by scanning electron microscopy (SEM), IR, and Raman spectroscopy. The hydrothermal stability of the material up to 60 °C at 93% relative humidity was verified by temperature-dependent XRD. Proton conductivity was studied by impedance spectroscopy, using a single crystal. By varying the relative humidity (70–95%), temperature (21–60 °C), and orientation of the crystal relative to the electrical potential, it was found that proton conduction occurs predominantly through the linear, unidirectional (1D) micropore channels of Co-MOF-74, and that water molecules inside the channels are responsible for the proton mobility by a Grotthuss-type mechanism.

ASJC Scopus Sachgebiete

Zitieren

Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. / Javed, Ali; Strauss, Ina; Bunzen, Hana et al.
in: Nanomaterials, Jahrgang 10, Nr. 7, 1263, 07.2020, S. 1-9.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Javed, A, Strauss, I, Bunzen, H, Caro, J & Tiemann, M 2020, 'Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74', Nanomaterials, Jg. 10, Nr. 7, 1263, S. 1-9. https://doi.org/10.3390/nano10071263
Javed, A., Strauss, I., Bunzen, H., Caro, J., & Tiemann, M. (2020). Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. Nanomaterials, 10(7), 1-9. Artikel 1263. https://doi.org/10.3390/nano10071263
Javed A, Strauss I, Bunzen H, Caro J, Tiemann M. Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. Nanomaterials. 2020 Jul;10(7):1-9. 1263. Epub 2020 Jun 28. doi: 10.3390/nano10071263
Javed, Ali ; Strauss, Ina ; Bunzen, Hana et al. / Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74. in: Nanomaterials. 2020 ; Jahrgang 10, Nr. 7. S. 1-9.
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abstract = "Large Co-MOF-74 crystals of a few hundred micrometers were prepared by solvothermal synthesis, and their structure and morphology were characterized by scanning electron microscopy (SEM), IR, and Raman spectroscopy. The hydrothermal stability of the material up to 60 °C at 93% relative humidity was verified by temperature-dependent XRD. Proton conductivity was studied by impedance spectroscopy, using a single crystal. By varying the relative humidity (70–95%), temperature (21–60 °C), and orientation of the crystal relative to the electrical potential, it was found that proton conduction occurs predominantly through the linear, unidirectional (1D) micropore channels of Co-MOF-74, and that water molecules inside the channels are responsible for the proton mobility by a Grotthuss-type mechanism.",
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note = "Funding Information: Acknowledgments: We thank Alexander Reitz for providing confocal laser microscopic images and Alexander Mundstock for fruitful and supportive discussion. I.S. thanks the Graduierten Akademie of the Leibniz University Hannover for financial support. Funding Information: Funding: This research was funded by Deutsche Forschungsgemeinschaft (DFG) within the priority program 1928: Coordination Networks: Building Blocks for Functional Systems, COORNETs. ",
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AU - Javed, Ali

AU - Strauss, Ina

AU - Bunzen, Hana

AU - Caro, Jürgen

AU - Tiemann, Michael

N1 - Funding Information: Acknowledgments: We thank Alexander Reitz for providing confocal laser microscopic images and Alexander Mundstock for fruitful and supportive discussion. I.S. thanks the Graduierten Akademie of the Leibniz University Hannover for financial support. Funding Information: Funding: This research was funded by Deutsche Forschungsgemeinschaft (DFG) within the priority program 1928: Coordination Networks: Building Blocks for Functional Systems, COORNETs.

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KW - Fuel cell

KW - Impedance spectroscopy

KW - Metal-organic framework

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