The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell

K. Watanabe; T. Araki; G. Inoue; R. Mochizuki; T. Tsujiguchi

doi:10.1149/09208.0335ecst

The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell

K. Watanabe, T. Araki, G. Inoue, R. Mochizuki, T. Tsujiguchi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Direct formic acid fuel cells (DFAFCs) have received considerable attention because they can generate higher power density compared with other direct liquid fuel cells. However, when the generated CO₂ bubbles are retained in the anode porous transport layer (PTL), the performance of DFAFCs deteriorates. In this study, power generation characteristics of DFAFCs using two types of PTL, viz. carbon paper and carbon cloth, were investigated. It was found that the maximum current density is about 60 mA/cm² higher with the carbon cloth than with the carbon paper. The CO₂ bubble distributions in anode PTLs were visualized during the operation using X-ray computed tomography, and the visualized images showed that the PTL structure affected the CO₂ bubble distribution, and that the transport paths of formic acid through liquid phase are tortured. Thus, it could be concluded that the transport characteristics of CO₂ bubbles affect the power generation characteristics of DFAFCs.

Original language	English
Title of host publication	Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19
Editors	K. Swider-Lyons, H. Uchida, F. Buechi, W. E. Mustain, B. S. Pivovar, P. N. Pintauro, A. Z. Weber, D. Jones, H. Gasteiger, C. A. Rice, P. Strasser, E. Kjeang, K. Shinohara, S. Mitsushima, Y.-T. Kim, T. J. Schmidt, J. M. Fenton, R. A. Mantz, B. Lakshmanan, H. Xu
Publisher	Electrochemical Society Inc.
Pages	335-340
Number of pages	6
Edition	8
ISBN (Electronic)	9781607685395
ISBN (Print)	9781607688822
DOIs	https://doi.org/10.1149/09208.0335ecst
Publication status	Published - Jan 1 2019
Event	Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting - Atlanta, United States Duration: Oct 13 2019 → Oct 17 2019

Publication series

Name	ECS Transactions
Number	8
Volume	92
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting
Country/Territory	United States
City	Atlanta
Period	10/13/19 → 10/17/19

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1149/09208.0335ecst

Cite this

Watanabe, K., Araki, T., Inoue, G., Mochizuki, R., & Tsujiguchi, T. (2019). The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell. In K. Swider-Lyons, H. Uchida, F. Buechi, W. E. Mustain, B. S. Pivovar, P. N. Pintauro, A. Z. Weber, D. Jones, H. Gasteiger, C. A. Rice, P. Strasser, E. Kjeang, K. Shinohara, S. Mitsushima, Y-T. Kim, T. J. Schmidt, J. M. Fenton, R. A. Mantz, B. Lakshmanan, & H. Xu (Eds.), Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19 (8 ed., pp. 335-340). (ECS Transactions; Vol. 92, No. 8). Electrochemical Society Inc.. https://doi.org/10.1149/09208.0335ecst

The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell. / Watanabe, K.; Araki, T.; Inoue, G. et al.

Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19. ed. / K. Swider-Lyons; H. Uchida; F. Buechi; W. E. Mustain; B. S. Pivovar; P. N. Pintauro; A. Z. Weber; D. Jones; H. Gasteiger; C. A. Rice; P. Strasser; E. Kjeang; K. Shinohara; S. Mitsushima; Y.-T. Kim; T. J. Schmidt; J. M. Fenton; R. A. Mantz; B. Lakshmanan; H. Xu. 8. ed. Electrochemical Society Inc., 2019. p. 335-340 (ECS Transactions; Vol. 92, No. 8).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Watanabe, K, Araki, T, Inoue, G, Mochizuki, R & Tsujiguchi, T 2019, The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell. in K Swider-Lyons, H Uchida, F Buechi, WE Mustain, BS Pivovar, PN Pintauro, AZ Weber, D Jones, H Gasteiger, CA Rice, P Strasser, E Kjeang, K Shinohara, S Mitsushima, Y-T Kim, TJ Schmidt, JM Fenton, RA Mantz, B Lakshmanan & H Xu (eds), Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19. 8 edn, ECS Transactions, no. 8, vol. 92, Electrochemical Society Inc., pp. 335-340, Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting, Atlanta, United States, 10/13/19. https://doi.org/10.1149/09208.0335ecst

Watanabe K, Araki T, Inoue G, Mochizuki R, Tsujiguchi T. The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell. In Swider-Lyons K, Uchida H, Buechi F, Mustain WE, Pivovar BS, Pintauro PN, Weber AZ, Jones D, Gasteiger H, Rice CA, Strasser P, Kjeang E, Shinohara K, Mitsushima S, Kim Y-T, Schmidt TJ, Fenton JM, Mantz RA, Lakshmanan B, Xu H, editors, Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19. 8 ed. Electrochemical Society Inc. 2019. p. 335-340. (ECS Transactions; 8). doi: 10.1149/09208.0335ecst

Watanabe, K. ; Araki, T. ; Inoue, G. et al. / The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell. Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 19. editor / K. Swider-Lyons ; H. Uchida ; F. Buechi ; W. E. Mustain ; B. S. Pivovar ; P. N. Pintauro ; A. Z. Weber ; D. Jones ; H. Gasteiger ; C. A. Rice ; P. Strasser ; E. Kjeang ; K. Shinohara ; S. Mitsushima ; Y.-T. Kim ; T. J. Schmidt ; J. M. Fenton ; R. A. Mantz ; B. Lakshmanan ; H. Xu. 8. ed. Electrochemical Society Inc., 2019. pp. 335-340 (ECS Transactions; 8).

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title = "The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell",

abstract = "Direct formic acid fuel cells (DFAFCs) have received considerable attention because they can generate higher power density compared with other direct liquid fuel cells. However, when the generated CO2 bubbles are retained in the anode porous transport layer (PTL), the performance of DFAFCs deteriorates. In this study, power generation characteristics of DFAFCs using two types of PTL, viz. carbon paper and carbon cloth, were investigated. It was found that the maximum current density is about 60 mA/cm2 higher with the carbon cloth than with the carbon paper. The CO2 bubble distributions in anode PTLs were visualized during the operation using X-ray computed tomography, and the visualized images showed that the PTL structure affected the CO2 bubble distribution, and that the transport paths of formic acid through liquid phase are tortured. Thus, it could be concluded that the transport characteristics of CO2 bubbles affect the power generation characteristics of DFAFCs.",

author = "K. Watanabe and T. Araki and G. Inoue and R. Mochizuki and T. Tsujiguchi",

note = "Funding Information: This study was partly supported by JST-PRESTO NW and JSPS KAKENHI under Grant Number 19J20495. Publisher Copyright: {\textcopyright} The Electrochemical Society.; Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 19, PEFC and E 2019 - 236th ECS Meeting ; Conference date: 13-10-2019 Through 17-10-2019",

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AU - Mochizuki, R.

AU - Tsujiguchi, T.

N1 - Funding Information: This study was partly supported by JST-PRESTO NW and JSPS KAKENHI under Grant Number 19J20495. Publisher Copyright: © The Electrochemical Society.

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Y1 - 2019/1/1

N2 - Direct formic acid fuel cells (DFAFCs) have received considerable attention because they can generate higher power density compared with other direct liquid fuel cells. However, when the generated CO2 bubbles are retained in the anode porous transport layer (PTL), the performance of DFAFCs deteriorates. In this study, power generation characteristics of DFAFCs using two types of PTL, viz. carbon paper and carbon cloth, were investigated. It was found that the maximum current density is about 60 mA/cm2 higher with the carbon cloth than with the carbon paper. The CO2 bubble distributions in anode PTLs were visualized during the operation using X-ray computed tomography, and the visualized images showed that the PTL structure affected the CO2 bubble distribution, and that the transport paths of formic acid through liquid phase are tortured. Thus, it could be concluded that the transport characteristics of CO2 bubbles affect the power generation characteristics of DFAFCs.

AB - Direct formic acid fuel cells (DFAFCs) have received considerable attention because they can generate higher power density compared with other direct liquid fuel cells. However, when the generated CO2 bubbles are retained in the anode porous transport layer (PTL), the performance of DFAFCs deteriorates. In this study, power generation characteristics of DFAFCs using two types of PTL, viz. carbon paper and carbon cloth, were investigated. It was found that the maximum current density is about 60 mA/cm2 higher with the carbon cloth than with the carbon paper. The CO2 bubble distributions in anode PTLs were visualized during the operation using X-ray computed tomography, and the visualized images showed that the PTL structure affected the CO2 bubble distribution, and that the transport paths of formic acid through liquid phase are tortured. Thus, it could be concluded that the transport characteristics of CO2 bubbles affect the power generation characteristics of DFAFCs.

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ER -

The effect of CCH bubble distribution on power generation performance of a direct formic acid fuel cell

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