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241107s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202408580
|2 doi
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|a pubmed25n1265.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Wang, Dongdong
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Ru-Incorporation-Induced Phase Transition in Co Nanoparticles for Low-Concentration Nitric Oxide Electroreduction to Ammonia at Low Potential
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 12.12.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Electrocatalytic reduction of nitric oxide (NO) to ammonia (NH3) represents a potential solution for improving the disrupted nitrogen cycle balance. Unfortunately, designing efficient electrocatalysts for NO reduction reaction (NORR) remains a notable challenge, especially at low concentrations. Herein, a displacement-alloying strategy is reported to successfully induce the phase transition of Co nanoparticles supported on carbon nanosheets from face-centered cubic (fcc) to hexagonal close-packed (hcp) structure through Ru incorporation. The obtained RuCo alloy with hcp phase structure (hcp-RuCo) exhibits apparent NORR activity with a record-high Faraday efficiency of 99.2% and an NH3 yield of 77.76 µg h-1 mgcat -1 at -0.1 V versus reversible hydrogen electrode at a NO concentration of 1 vol %, surpassing Co nanoparticles with fcc phase structure and most reported catalysts. Density functional theory calculations reveal that the excellent NORR activity of hcp-RuCo can be attributed to the optimized electronic structure of Co site and lowered energy barrier of the potential rate-determining step through phase transition. Furthermore, the assembled Zn-NO battery using hcp-RuCo as the cathode achieves a power density of 2.33 mW cm-2 and an NH3 yield of 45.94 µg h-1 mgcat -1. This work provides a promising research perspective for low-concentration NO conversion
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|a Journal Article
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|a NH3 synthesis
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| 650 |
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4 |
|a NO reduction
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| 650 |
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4 |
|a electrocatalysis
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| 650 |
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4 |
|a low‐concentration NO
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| 650 |
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4 |
|a phase transition
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| 700 |
1 |
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|a Fan, Guilan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luan, Deyan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Yan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gu, Xiaojun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lou, Xiong Wen David
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 50 vom: 06. Dez., Seite e2408580
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:50
|g day:06
|g month:12
|g pages:e2408580
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202408580
|3 Volltext
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