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    Rights statement: This is the author’s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, 46, 2, 6745-6750, 2021 DOI: 10.1016/j.ijhydene.2020.11.140

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    Embargo ends: 10/12/21

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Effect of alkaline fuel cell catalyst on deuterium isotope separation

Research output: Contribution to journalJournal articlepeer-review

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Effect of alkaline fuel cell catalyst on deuterium isotope separation. / Tanii, R.; Ogawa, R.; Matsushima, H.; Ueda, M.; Dawson, R.

In: International Journal of Hydrogen Energy, Vol. 46, No. 9, 03.02.2021, p. 6745-6750.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Tanii, R, Ogawa, R, Matsushima, H, Ueda, M & Dawson, R 2021, 'Effect of alkaline fuel cell catalyst on deuterium isotope separation', International Journal of Hydrogen Energy, vol. 46, no. 9, pp. 6745-6750. https://doi.org/10.1016/j.ijhydene.2020.11.140

APA

Tanii, R., Ogawa, R., Matsushima, H., Ueda, M., & Dawson, R. (2021). Effect of alkaline fuel cell catalyst on deuterium isotope separation. International Journal of Hydrogen Energy, 46(9), 6745-6750. https://doi.org/10.1016/j.ijhydene.2020.11.140

Vancouver

Tanii R, Ogawa R, Matsushima H, Ueda M, Dawson R. Effect of alkaline fuel cell catalyst on deuterium isotope separation. International Journal of Hydrogen Energy. 2021 Feb 3;46(9):6745-6750. https://doi.org/10.1016/j.ijhydene.2020.11.140

Author

Tanii, R. ; Ogawa, R. ; Matsushima, H. ; Ueda, M. ; Dawson, R. / Effect of alkaline fuel cell catalyst on deuterium isotope separation. In: International Journal of Hydrogen Energy. 2021 ; Vol. 46, No. 9. pp. 6745-6750.

Bibtex

@article{56978397844e4424b72672ca6940c11d,
title = "Effect of alkaline fuel cell catalyst on deuterium isotope separation",
abstract = "Fuel cells (FC) have been developed for automobiles and stationary power units. In addition to a power generator function, we propose a new application of hydrogen isotope separation. In this paper, deuterium (D) separation is investigated by two types of AFCs with platinum (Pt) or ruthenium (Ru) anode catalysts. The characteristics of the AFCs are evaluated by pure protium (H) or deuterium gas separately. In the case of Pt catalyst, the cell current/voltage curves show similar results for both gases. But a remarkable decrease in the voltage value is observed probably due to the mass transportation (diffusion) limitation at Ru catalyst. The limitation effect was larger for D2 than H2 gas. The AC impedance measurements supports the slow reaction rate of D2 gas on Ru catalyst. The separation experiments are verified with hydrogen gas mixed with 1 at% D. The D is diluted in the unreacted gas discharged from AFC with Pt catalyst, but it is concentrated with Ru one. The inverse response may be attributed to the elementary process of the hydrogen oxidation reaction and the difference in the adsorption energy of gas and water molecules on the catalyst surface. {\textcopyright} 2020 Hydrogen Energy Publications LLC",
keywords = "Deuterium, Fuel cell, Hydrogen isotopes, Ruthenium, Separation factor, Catalyst supports, Gases, Mass transportation, Molecules, Platinum, Separation, AC impedance measurement, Adsorption energies, Catalyst surfaces, Elementary process, Generator function, Hydrogen isotope separation, Hydrogen oxidation reaction, Isotope separation, Alkaline fuel cells",
author = "R. Tanii and R. Ogawa and H. Matsushima and M. Ueda and R. Dawson",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, 46, 2, 6745-6750, 2021 DOI: 10.1016/j.ijhydene.2020.11.140",
year = "2021",
month = feb,
day = "3",
doi = "10.1016/j.ijhydene.2020.11.140",
language = "English",
volume = "46",
pages = "6745--6750",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Limited",
number = "9",

}

RIS

TY - JOUR

T1 - Effect of alkaline fuel cell catalyst on deuterium isotope separation

AU - Tanii, R.

AU - Ogawa, R.

AU - Matsushima, H.

AU - Ueda, M.

AU - Dawson, R.

N1 - This is the author’s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, 46, 2, 6745-6750, 2021 DOI: 10.1016/j.ijhydene.2020.11.140

PY - 2021/2/3

Y1 - 2021/2/3

N2 - Fuel cells (FC) have been developed for automobiles and stationary power units. In addition to a power generator function, we propose a new application of hydrogen isotope separation. In this paper, deuterium (D) separation is investigated by two types of AFCs with platinum (Pt) or ruthenium (Ru) anode catalysts. The characteristics of the AFCs are evaluated by pure protium (H) or deuterium gas separately. In the case of Pt catalyst, the cell current/voltage curves show similar results for both gases. But a remarkable decrease in the voltage value is observed probably due to the mass transportation (diffusion) limitation at Ru catalyst. The limitation effect was larger for D2 than H2 gas. The AC impedance measurements supports the slow reaction rate of D2 gas on Ru catalyst. The separation experiments are verified with hydrogen gas mixed with 1 at% D. The D is diluted in the unreacted gas discharged from AFC with Pt catalyst, but it is concentrated with Ru one. The inverse response may be attributed to the elementary process of the hydrogen oxidation reaction and the difference in the adsorption energy of gas and water molecules on the catalyst surface. © 2020 Hydrogen Energy Publications LLC

AB - Fuel cells (FC) have been developed for automobiles and stationary power units. In addition to a power generator function, we propose a new application of hydrogen isotope separation. In this paper, deuterium (D) separation is investigated by two types of AFCs with platinum (Pt) or ruthenium (Ru) anode catalysts. The characteristics of the AFCs are evaluated by pure protium (H) or deuterium gas separately. In the case of Pt catalyst, the cell current/voltage curves show similar results for both gases. But a remarkable decrease in the voltage value is observed probably due to the mass transportation (diffusion) limitation at Ru catalyst. The limitation effect was larger for D2 than H2 gas. The AC impedance measurements supports the slow reaction rate of D2 gas on Ru catalyst. The separation experiments are verified with hydrogen gas mixed with 1 at% D. The D is diluted in the unreacted gas discharged from AFC with Pt catalyst, but it is concentrated with Ru one. The inverse response may be attributed to the elementary process of the hydrogen oxidation reaction and the difference in the adsorption energy of gas and water molecules on the catalyst surface. © 2020 Hydrogen Energy Publications LLC

KW - Deuterium

KW - Fuel cell

KW - Hydrogen isotopes

KW - Ruthenium

KW - Separation factor

KW - Catalyst supports

KW - Gases

KW - Mass transportation

KW - Molecules

KW - Platinum

KW - Separation

KW - AC impedance measurement

KW - Adsorption energies

KW - Catalyst surfaces

KW - Elementary process

KW - Generator function

KW - Hydrogen isotope separation

KW - Hydrogen oxidation reaction

KW - Isotope separation

KW - Alkaline fuel cells

U2 - 10.1016/j.ijhydene.2020.11.140

DO - 10.1016/j.ijhydene.2020.11.140

M3 - Journal article

VL - 46

SP - 6745

EP - 6750

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 9

ER -