In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages

Sutasinee Kityakarn; Takahiro Saida; Aya Sode; Nozomu Ishiguro; Oki Sekizawa; Tomoya Uruga; Kensaku Nagasawa; Takashi Yamamoto; Toshihiko Yokoyama; Mizuki Tada

doi:10.1007/s11244-014-0250-3

In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages

Sutasinee Kityakarn, Takahiro Saida, Aya Sode, Nozomu Ishiguro, Oki Sekizawa, Tomoya Uruga, Kensaku Nagasawa, Takashi Yamamoto, Toshihiko Yokoyama, Mizuki Tada

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

13 Citations (Scopus)

Abstract

The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100 ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-30 s.

Original language	English
Pages (from-to)	903-910
Number of pages	8
Journal	Topics in Catalysis
Volume	57
Issue number	10-13
DOIs	https://doi.org/10.1007/s11244-014-0250-3
Publication status	Published - 2014 Jun
Externally published	Yes

Keywords

In situ analysis
Polymer electrolyte fuel cell
Pt catalyst
Time-resolved XAFS
Transient voltage

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1007/s11244-014-0250-3

Cite this

@article{b52c454906d74ac7aa82e5bdafea95f4,

title = "In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages",

abstract = "The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100 ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-30 s.",

keywords = "In situ analysis, Polymer electrolyte fuel cell, Pt catalyst, Time-resolved XAFS, Transient voltage",

author = "Sutasinee Kityakarn and Takahiro Saida and Aya Sode and Nozomu Ishiguro and Oki Sekizawa and Tomoya Uruga and Kensaku Nagasawa and Takashi Yamamoto and Toshihiko Yokoyama and Mizuki Tada",

note = "Funding Information: Acknowledgments This work was supported by the New Energy and Industrial Technology Development Organization of the Ministry of Economy, Trade, and Industry, Japan. XAFS measurements were performed at SPring-8 (No. 2012A1013 (BL40XU) and No. 2012B7820 (BL36XU)).",

year = "2014",

month = jun,

doi = "10.1007/s11244-014-0250-3",

language = "English",

volume = "57",

pages = "903--910",

journal = "Topics in Catalysis",

issn = "1022-5528",

publisher = "Springer Netherlands",

number = "10-13",

}

TY - JOUR

T1 - In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages

AU - Kityakarn, Sutasinee

AU - Saida, Takahiro

AU - Sode, Aya

AU - Ishiguro, Nozomu

AU - Sekizawa, Oki

AU - Uruga, Tomoya

AU - Nagasawa, Kensaku

AU - Yamamoto, Takashi

AU - Yokoyama, Toshihiko

AU - Tada, Mizuki

N1 - Funding Information: Acknowledgments This work was supported by the New Energy and Industrial Technology Development Organization of the Ministry of Economy, Trade, and Industry, Japan. XAFS measurements were performed at SPring-8 (No. 2012A1013 (BL40XU) and No. 2012B7820 (BL36XU)).

PY - 2014/6

Y1 - 2014/6

N2 - The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100 ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-30 s.

AB - The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100 ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-30 s.

KW - In situ analysis

KW - Polymer electrolyte fuel cell

KW - Pt catalyst

KW - Time-resolved XAFS

KW - Transient voltage

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UR - http://www.scopus.com/inward/citedby.url?scp=84902676173&partnerID=8YFLogxK

U2 - 10.1007/s11244-014-0250-3

DO - 10.1007/s11244-014-0250-3

M3 - Article

AN - SCOPUS:84902676173

SN - 1022-5528

VL - 57

SP - 903

EP - 910

JO - Topics in Catalysis

JF - Topics in Catalysis

IS - 10-13

ER -

In situ time-resolved XAFS of transitional states of Pt/C cathode electrocatalyst in an MEA during PEFC loading with transient voltages

Abstract

Keywords

ASJC Scopus subject areas

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