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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201701354
|2 doi
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|a pubmed24n0905.xml
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|a eng
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|a Ni, Bing
|e verfasserin
|4 aut
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|a Modifying Commercial Carbon with Trace Amounts of ZIF to Prepare Derivatives with Superior ORR Activities
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|c 2017
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 18.07.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Reducing costs while maintaining high activities and stabilities of oxygen reduction reaction (ORR) catalysts has long been pursued for applications to membrane fuel cells. Here, an absorption-reaction method is used to prepare a zeolitic imidazolate framework coated commercial carbon, and the pyrolysis of such material brings about impressive ORR activities and stabilities with large diffusion-limited current density, half-wave potential, and no obvious decay after 10 000 cyclic voltammetry cycles, which is even better than that of the commercial Pt/C catalysts. The absorption-reaction method is realized by simply soaking the commercial carbon black sequentially in Co(NO3 )2 and 2-methylimidazole solutions at ambient conditions. The detailed analysis on such carbon materials reveals that both Co and N are essential to activities, even the amount of N and Co species is very low. The reduction of raw materials and simplified handling procedures result in well-controlled costs in applications
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|a Journal Article
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|a Co3O4
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|a carbon materials
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|a oxygen reduction reaction
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4 |
|a zeolitic imidazolate frameworks
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1 |
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|a Ouyang, Chen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Xiaobin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhuang, Jing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 27 vom: 04. Juli
|w (DE-627)NLM098206397
|x 1521-4095
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| 773 |
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|g volume:29
|g year:2017
|g number:27
|g day:04
|g month:07
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|u http://dx.doi.org/10.1002/adma.201701354
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