|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM309308240 |
| 003 |
DE-627 |
| 005 |
20231225133623.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2020 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.201907690
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1030.xml
|
| 035 |
|
|
|a (DE-627)NLM309308240
|
| 035 |
|
|
|a (NLM)32346928
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Liu, Yan
|e verfasserin
|4 aut
|
| 245 |
1 |
2 |
|a A Highly Efficient Metal-Free Electrocatalyst of F-Doped Porous Carbon toward N2 Electroreduction
|
| 264 |
|
1 |
|c 2020
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 30.09.2020
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
|
| 520 |
|
|
|a N2 electroreduction into NH3 represents an attractive prospect for N2 utilization. Nevertheless, this process suffers from low Faraday efficiency (FE) and yield rate for NH3 . In this work, a highly efficient metal-free catalyst is developed by introducing F atoms into a 3D porous carbon framework (F-doped carbon) toward N2 electroreduction. At -0.2 V versus reversible hydrogen electrode (RHE), the F-doped carbon achieves the highest FE of 54.8% for NH3 , which is 3.0 times as high as that (18.3%) of pristine carbon frameworks. Notably, at -0.3 V versus RHE, the yield rate of F-doped carbon for NH3 reaches 197.7 µgNH3 mg-1 cat. h-1 . Such a value is more than one order of magnitude higher than those of other metal-free electrocatalysts under the near-ambient conditions for NH3 product to date. Mechanistic studies reveal that the improved performance in N2 electroreduction for F-doped carbon originates from the enhanced binding strength of N2 and the facilitated dissociation of N2 into *N2 H. F bonding to C atom creates a Lewis acid site due to the different electronegativity between the F and C atoms. As such, the repulsive interaction between the Lewis acid site and proton H suppresses the activity of H2 evolution reaction, thus enhancing the selectivity of N2 electroreduction into NH3
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a F-doped carbon
|
| 650 |
|
4 |
|a N2 electroreduction
|
| 650 |
|
4 |
|a NH3 product
|
| 650 |
|
4 |
|a metal-free catalysts
|
| 700 |
1 |
|
|a Li, Qiuyao
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Guo, Xu
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Kong, Xiangdong
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Ke, Jingwen
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Chi, Mingfang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Li, Qunxiang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Geng, Zhigang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zeng, Jie
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 24 vom: 17. Juni, Seite e1907690
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
|
| 773 |
1 |
8 |
|g volume:32
|g year:2020
|g number:24
|g day:17
|g month:06
|g pages:e1907690
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.201907690
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 32
|j 2020
|e 24
|b 17
|c 06
|h e1907690
|