Atmospheric-Pressure Synthesis of 2D Nitrogen-Rich Tungsten Nitride
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim..
2D transition metal nitrides, especially nitrogen-rich tungsten nitrides (Wx Ny , y > x), such as W3 N4 and W2 N3 , have a great potential for the hydrogen evolution reaction (HER) since the catalytic activity is largely enhanced by the abundant WN bonding. However, the rational synthesis of 2D nitrogen-rich tungsten nitrides is challenging due to the large formation energy of WN bonding. Herein, ultrathin 2D hexagonal-W2 N3 (h-W2 N3 ) flakes are synthesized at atmospheric pressure via a salt-templated method. The formation energy of h-W2 N3 can be dramatically decreased owing to the strong interaction and domain matching epitaxy between KCl and h-W2 N3 . 2D h-W2 N3 demonstrates an excellent catalytic activity for cathodic HER with an onset potential of -30.8 mV as well as an overpotential of -98.2 mV for 10 mA cm-2.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:30 |
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| Enthalten in: |
Advanced materials (Deerfield Beach, Fla.) - 30(2018), 51 vom: 18. Dez., Seite e1805655 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yu, Huimin [VerfasserIn] |
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| Links: |
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| Themen: |
2D materials |
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| Anmerkungen: |
Date Completed 17.12.2018 Date Revised 01.10.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/adma.201805655 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM289921457 |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | ||
| 520 | |a 2D transition metal nitrides, especially nitrogen-rich tungsten nitrides (Wx Ny , y > x), such as W3 N4 and W2 N3 , have a great potential for the hydrogen evolution reaction (HER) since the catalytic activity is largely enhanced by the abundant WN bonding. However, the rational synthesis of 2D nitrogen-rich tungsten nitrides is challenging due to the large formation energy of WN bonding. Herein, ultrathin 2D hexagonal-W2 N3 (h-W2 N3 ) flakes are synthesized at atmospheric pressure via a salt-templated method. The formation energy of h-W2 N3 can be dramatically decreased owing to the strong interaction and domain matching epitaxy between KCl and h-W2 N3 . 2D h-W2 N3 demonstrates an excellent catalytic activity for cathodic HER with an onset potential of -30.8 mV as well as an overpotential of -98.2 mV for 10 mA cm-2 | ||
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| 650 | 4 | |a atmospheric-pressure synthesis | |
| 650 | 4 | |a electrocatalysis | |
| 650 | 4 | |a nitrogen-rich | |
| 650 | 4 | |a transition metal nitrides | |
| 700 | 1 | |a Yang, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Xiao, Xu |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Ming |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Qinghua |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Liang |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Jiabing |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Tianqi |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Shuangming |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Gu, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Xia, Bao Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Guang |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jia |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Jun |e verfasserin |4 aut | |
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