The primary issue for the commercialization of proton exchange membrane fuel cell(PEMFC) is the carbon corrosion of support under start-up/shut-down conditions. In this study, we employ the nanostructured graphitized carbon induced by heat-treatment. The degree of graphitization starts to increase between 900 and 1300 ℃ as evidenced by the change of specific surface area, interlayer spacing, and ID/IG value. Pt nanoparticles are deposited on fresh carbon black(Pt/CB) and carbon heat-treated at 1700 ℃(Pt/HCB17) with similar particle size and distribution. Electrochemical characterization demonstrates that the Pt/HCB17 shows higher activity than the Pt/CB due to the inefficient microporous structure of amorphous carbon for the oxygen reduction reaction. An accelerating potential cycle between 1.0 and 1.5 V for the carbon corrosion is applied to examine durability at a single cell under the practical start-up/shutdown conditions. The Pt/HCB17 catalyst shows remarkable durability after 3000 potential cycles. The Pt/HCB17 catalyst exhibits a peak power density gain of 3%, while the Pt/CB catalyst shows 65% loss of the initial peak power density. As well, electrochemical surface area and mass activity of Pt/HCB17 catalyst are even more stable than those of the Pt/CB catalyst. Consequently, the high degree of graphitization is essential for the durability of fuel cells in practical start-up/shut-down conditions due to enhancing the strong interaction of Pt and π-bonds in graphitized carbon.
机构:
Korea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Lim, SangJin
Cho, Eunae
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机构:
Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Cho, Eunae
Lee, Sang-Yeop
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机构:
Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Lee, Sang-Yeop
Kim, Hyoung-Juhn
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机构:
Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Kim, Hyoung-Juhn
Lim, Tae-Hoon
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机构:
Korea Inst Sci & Technol, Fuel Cell Res Ctr, Seoul 136791, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Lim, Tae-Hoon
Lee, Kwanyoung
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机构:
Korea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South KoreaKorea Univ, Dept Chem & Biol Engn, 1-5 Anam Dong, Seoul 136701, South Korea
Lee, Kwanyoung
JOURNAL OF THE KOREAN ELECTROCHEMICAL SOCIETY,
2006,
9
(03):
: 118
-
123
机构:
Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, CanadaUniv Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
Obaid, Juwairia
Ramadan, Ashraf
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机构:
Kuwait Inst Sci Res, Environm & Life Sci Res Ctr, Safat 13109, KuwaitUniv Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
Ramadan, Ashraf
Elkamel, Ali
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Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
Petr Inst, POB 2533, Abu Dhabi, U Arab EmiratesUniv Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
Elkamel, Ali
Anderson, William
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Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, CanadaUniv Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
机构:
Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Takasaki, F.
Matsuie, S.
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Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Matsuie, S.
Takabatake, Y.
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Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Takabatake, Y.
Noda, Z.
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h-index: 0
机构:
Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Noda, Z.
Hayashi, A.
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机构:
Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Hayashi, A.
Shiratori, Y.
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机构:
Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Shiratori, Y.
Ito, K.
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机构:
Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Ito, K.
Sasaki, K.
论文数: 0引用数: 0
h-index: 0
机构:
Kyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Res Ctr Hydrogen Energy, Nishi Ku, Fukuoka 8190395, Japan
Kyushu Univ, Int Inst Carbon Neutral Energy Res, Nishi Ku, Fukuoka 8190395, JapanKyushu Univ, Fac Engn, Dept Mech Engn, Nishi Ku, Fukuoka 8190395, Japan