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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202004670
|2 doi
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|a pubmed24n1050.xml
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|a (DE-627)NLM315114320
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|a (NLM)32939887
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhu, Zhengju
|e verfasserin
|4 aut
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|a Coexisting Single-Atomic Fe and Ni Sites on Hierarchically Ordered Porous Carbon as a Highly Efficient ORR Electrocatalyst
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 20.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a The development of oxygen reduction reaction (ORR) electrocatalysts based on earth-abundant nonprecious materials is critically important for sustainable large-scale applications of fuel cells and metal-air batteries. Herein, a hetero-single-atom (h-SA) ORR electrocatalyst is presented, which has atomically dispersed Fe and Ni coanchored to a microsized nitrogen-doped graphitic carbon support with unique trimodal-porous structure configured by highly ordered macropores interconnected through mesopores. Extended X-ray absorption fine structure spectra confirm that Fe- and Ni-SAs are affixed to the carbon support via FeN4 and NiN4 coordination bonds. The resultant Fe/Ni h-SA electrocatalyst exhibits an outstanding ORR activity, outperforming SA electrocatalysts with only Fe- or Ni-SAs, and the benchmark Pt/C. The obtained experimental results indicate that the achieved outstanding ORR performance results from the synergetic enhancement induced by the coexisting FeN4 and NiN4 sites, and the superior mass-transfer capability promoted by the trimodal-porous-structured carbon support
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|a Journal Article
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|a electrocatalysis
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|a fuel cell
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|a hierarchically porous structure
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| 650 |
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|a oxygen reduction reaction
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|a single atom catalyst
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|a Yin, Huajie
|e verfasserin
|4 aut
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|a Wang, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chuang, Cheng-Hao
|e verfasserin
|4 aut
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|a Xing, Lei
|e verfasserin
|4 aut
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| 700 |
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|a Dong, Mengyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Ying-Rui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Casillas-Garcia, Gilberto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Yonglong
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Shan
|e verfasserin
|4 aut
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| 700 |
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|a Dou, Yuhai
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Porun
|e verfasserin
|4 aut
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|a Cheng, Qilin
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Huijun
|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 32(2020), 42 vom: 16. Okt., Seite e2004670
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:42
|g day:16
|g month:10
|g pages:e2004670
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|u http://dx.doi.org/10.1002/adma.202004670
|3 Volltext
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