Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers

Dung Van Dao; Ganpurev Adilbish; Thanh Duc Le; In Hwan Lee; Yeon Tae Yu

doi:10.1039/c9ra01741k

Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers

Dung Van Dao, Ganpurev Adilbish, Thanh Duc Le, In Hwan Lee, Yeon Tae Yu

Department of Materials Science and Engineering

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

28 Citations (Scopus)

Abstract

Exploring efficient approaches to design electrodes for proton exchange membrane fuel cells (PEMFCs) is of great advantage to overcome the current limitations of the standard platinum supported carbon (Pt/C) catalyst. Herein, a Pt/C electrode consisting of double catalyst layers (DCL) with low Pt loading of around 0.130 mg_Pt cm^-2 is prepared using spray and electrophoresis (EPD) methods. The DCL electrode demonstrated a higher electrochemical surface area (ECSA-52.5 m² g_Pt^-1) and smaller internal resistance (133 Ω) as compared to single catalyst layer (SCL) sprayed (37.1 m² g_Pt^-1 and 184 Ω) or EPD (42.4 m² g_Pt^-1 and 170 Ω) electrodes. In addition, the corresponding DCL membrane electrode assembly (MEA), which consists of a Pt/C DCL electrode at the anode side and a Pt/C sprayed electrode at the cathode side, also showed improved PEMFC performance as compared to others. Specifically, the DCL MEA generated the highest power density of 4.9 W mg_Pt^-1, whereas, the SCL MEAs only produced 3.1 and 3.8 W mg_Pt^-1, respectively. The superior utilization of the Pt catalysts into the DCL MEA can originate from the enrichment of the triple phase boundary (TPB) presented on the Pt/C DCL electrode, which can strongly promote the adsorbed hydrogen intermediates' removal from the anode side, thus improving the overall PEMFC performance.

Original language	English
Pages (from-to)	15635-15641
Number of pages	7
Journal	RSC Advances
Volume	9
Issue number	27
DOIs	https://doi.org/10.1039/c9ra01741k
Publication status	Published - 2019

Bibliographical note

Funding Information:
This work was supported by (1) BK21 plus program from the Ministry of Education and Human-Resource Development, South of Korea; (2) National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (BRL No. 2015042417, 2016R1A2B4014090, 2017R1A2B3006141) and (3) LINC Plus Research Project (2018-C-G022-010102).

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1039/c9ra01741k

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@article{62f0e040b9ab4ca399eaf43ce7c29727,

title = "Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers",

abstract = "Exploring efficient approaches to design electrodes for proton exchange membrane fuel cells (PEMFCs) is of great advantage to overcome the current limitations of the standard platinum supported carbon (Pt/C) catalyst. Herein, a Pt/C electrode consisting of double catalyst layers (DCL) with low Pt loading of around 0.130 mgPt cm-2 is prepared using spray and electrophoresis (EPD) methods. The DCL electrode demonstrated a higher electrochemical surface area (ECSA-52.5 m2 gPt-1) and smaller internal resistance (133 Ω) as compared to single catalyst layer (SCL) sprayed (37.1 m2 gPt-1 and 184 Ω) or EPD (42.4 m2 gPt-1 and 170 Ω) electrodes. In addition, the corresponding DCL membrane electrode assembly (MEA), which consists of a Pt/C DCL electrode at the anode side and a Pt/C sprayed electrode at the cathode side, also showed improved PEMFC performance as compared to others. Specifically, the DCL MEA generated the highest power density of 4.9 W mgPt-1, whereas, the SCL MEAs only produced 3.1 and 3.8 W mgPt-1, respectively. The superior utilization of the Pt catalysts into the DCL MEA can originate from the enrichment of the triple phase boundary (TPB) presented on the Pt/C DCL electrode, which can strongly promote the adsorbed hydrogen intermediates' removal from the anode side, thus improving the overall PEMFC performance.",

author = "Dao, {Dung Van} and Ganpurev Adilbish and Le, {Thanh Duc} and Lee, {In Hwan} and Yu, {Yeon Tae}",

note = "Funding Information: This work was supported by (1) BK21 plus program from the Ministry of Education and Human-Resource Development, South of Korea; (2) National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (BRL No. 2015042417, 2016R1A2B4014090, 2017R1A2B3006141) and (3) LINC Plus Research Project (2018-C-G022-010102). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

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T1 - Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers

AU - Dao, Dung Van

AU - Adilbish, Ganpurev

AU - Le, Thanh Duc

AU - Lee, In Hwan

AU - Yu, Yeon Tae

N1 - Funding Information: This work was supported by (1) BK21 plus program from the Ministry of Education and Human-Resource Development, South of Korea; (2) National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (BRL No. 2015042417, 2016R1A2B4014090, 2017R1A2B3006141) and (3) LINC Plus Research Project (2018-C-G022-010102). Publisher Copyright: © The Royal Society of Chemistry.

PY - 2019

Y1 - 2019

N2 - Exploring efficient approaches to design electrodes for proton exchange membrane fuel cells (PEMFCs) is of great advantage to overcome the current limitations of the standard platinum supported carbon (Pt/C) catalyst. Herein, a Pt/C electrode consisting of double catalyst layers (DCL) with low Pt loading of around 0.130 mgPt cm-2 is prepared using spray and electrophoresis (EPD) methods. The DCL electrode demonstrated a higher electrochemical surface area (ECSA-52.5 m2 gPt-1) and smaller internal resistance (133 Ω) as compared to single catalyst layer (SCL) sprayed (37.1 m2 gPt-1 and 184 Ω) or EPD (42.4 m2 gPt-1 and 170 Ω) electrodes. In addition, the corresponding DCL membrane electrode assembly (MEA), which consists of a Pt/C DCL electrode at the anode side and a Pt/C sprayed electrode at the cathode side, also showed improved PEMFC performance as compared to others. Specifically, the DCL MEA generated the highest power density of 4.9 W mgPt-1, whereas, the SCL MEAs only produced 3.1 and 3.8 W mgPt-1, respectively. The superior utilization of the Pt catalysts into the DCL MEA can originate from the enrichment of the triple phase boundary (TPB) presented on the Pt/C DCL electrode, which can strongly promote the adsorbed hydrogen intermediates' removal from the anode side, thus improving the overall PEMFC performance.

AB - Exploring efficient approaches to design electrodes for proton exchange membrane fuel cells (PEMFCs) is of great advantage to overcome the current limitations of the standard platinum supported carbon (Pt/C) catalyst. Herein, a Pt/C electrode consisting of double catalyst layers (DCL) with low Pt loading of around 0.130 mgPt cm-2 is prepared using spray and electrophoresis (EPD) methods. The DCL electrode demonstrated a higher electrochemical surface area (ECSA-52.5 m2 gPt-1) and smaller internal resistance (133 Ω) as compared to single catalyst layer (SCL) sprayed (37.1 m2 gPt-1 and 184 Ω) or EPD (42.4 m2 gPt-1 and 170 Ω) electrodes. In addition, the corresponding DCL membrane electrode assembly (MEA), which consists of a Pt/C DCL electrode at the anode side and a Pt/C sprayed electrode at the cathode side, also showed improved PEMFC performance as compared to others. Specifically, the DCL MEA generated the highest power density of 4.9 W mgPt-1, whereas, the SCL MEAs only produced 3.1 and 3.8 W mgPt-1, respectively. The superior utilization of the Pt catalysts into the DCL MEA can originate from the enrichment of the triple phase boundary (TPB) presented on the Pt/C DCL electrode, which can strongly promote the adsorbed hydrogen intermediates' removal from the anode side, thus improving the overall PEMFC performance.

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DO - 10.1039/c9ra01741k

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EP - 15641

JO - RSC Advances

JF - RSC Advances

IS - 27

ER -

Triple phase boundary and power density enhancement in PEMFCs of a Pt/C electrode with double catalyst layers

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