Highly active oxygen reduction non-platinum group metal electrocatalyst without direct metal-nitrogen coordination
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作者:
Strickland, Kara
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Northeastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USANortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Strickland, Kara
[1
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Miner, Elise
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Northeastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USANortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Miner, Elise
[1
]
Jia, Qingying
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Northeastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USANortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Jia, Qingying
[1
]
Tylus, Urszula
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Northeastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USANortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Tylus, Urszula
[1
]
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Ramaswamy, Nagappan
[1
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Liang, Wentao
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Northeastern Univ, Dept Biol, Boston, MA 02115 USANortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Liang, Wentao
[2
]
Sougrati, Moulay-Tahar
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Inst Charles Gerhardt Montpellier, UMR 5253, F-34095 Montpellier 5, FranceNortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Sougrati, Moulay-Tahar
[3
]
Jaouen, Frederic
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Inst Charles Gerhardt Montpellier, UMR 5253, F-34095 Montpellier 5, FranceNortheastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
Jaouen, Frederic
[3
]
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Mukerjee, Sanjeev
[1
]
机构:
[1] Northeastern Univ, Dept Chem & Chem Biol, Ctr Renewable Energy Technol, Egan Res Ctr 317, Boston, MA 02115 USA
[2] Northeastern Univ, Dept Biol, Boston, MA 02115 USA
[3] Inst Charles Gerhardt Montpellier, UMR 5253, F-34095 Montpellier 5, France
Replacement of noble metals in catalysts for cathodic oxygen reduction reaction with transition metals mostly create active sites based on a composite of nitrogen-coordinated transition metal in close concert with non-nitrogen-coordinated carbon-embedded metal atom clusters. Here we report a non-platinum group metal electrocatalyst with an active site devoid of any direct nitrogen coordination to iron that outperforms the benchmark platinumbased catalyst in alkaline media and is comparable to its best contemporaries in acidic media. In situ X-ray absorption spectroscopy in conjunction with ex situ microscopy clearly shows nitrided carbon fibres with embedded iron particles that are not directly involved in the oxygen reduction pathway. Instead, the reaction occurs primarily on the carbon-nitrogen structure in the outer skin of the nitrided carbon fibres. Implications include the potential of creating greater active site density and the potential elimination of any Fenton-type process involving exposed iron ions culminating in peroxide initiated free-radical formation.
机构:
Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Chongqing Univ Arts & Sci, Chongqing Key Lab Environm Mat & Remediat Technol, Yongchuan 402160, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Guo, Chao-Zhong
Liao, Wen-Li
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Chongqing Univ Arts & Sci, Coll Mat & Chem Engn, Chongqing 402160, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Liao, Wen-Li
Chen, Chang-Guo
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Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Liu, Ping
Chen, Changguo
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Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Chen, Changguo
Guo, Chaozhong
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Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Guo, Chaozhong
Du, Mo
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Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Du, Mo
Wu, Huijuan
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Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Wu, Huijuan
Yin, Wei
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机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
机构:
Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Chongqing Univ Arts & Sci, Chongqing Key Lab Environm Mat & Remediat Technol, Yongchuan 402160, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Guo, Chao-Zhong
Liao, Wen-Li
论文数: 0引用数: 0
h-index: 0
机构:
Chongqing Univ Arts & Sci, Coll Mat & Chem Engn, Chongqing 402160, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
Liao, Wen-Li
Chen, Chang-Guo
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h-index: 0
机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R China
机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Liu, Ping
Chen, Changguo
论文数: 0引用数: 0
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机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Chen, Changguo
Guo, Chaozhong
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机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Yongchuan 402160, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Guo, Chaozhong
Du, Mo
论文数: 0引用数: 0
h-index: 0
机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Du, Mo
Wu, Huijuan
论文数: 0引用数: 0
h-index: 0
机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
Wu, Huijuan
Yin, Wei
论文数: 0引用数: 0
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机构:
Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China