Ultrafine Ni-MoOx Nanoparticles Anchored on Nitrogen-Doped Carbon Nanosheets : A Highly Efficient Noble-Metal-Free Catalyst for Ammonia Borane Hydrolysis
© 2024 Wiley‐VCH GmbH..
The development of low-cost and high-efficiency catalysts for the hydrolytic dehydrogenation of ammonia borane (AB, NH3BH3) is still a challenging technology. Herein, ultrafine MoOx-doped Ni nanoparticles (~3.0 nm) were anchored on g-C3N4glucose-derived nitrogen-doped carbon nanosheets via a phosphate-mediated method. The strong adsorption of phosphate-mediated nitrogen-doped carbon nanosheets (PNCS) for metal ions is a key factor for the preparation of ultrasmall Ni nanoparticles (NPs). Notably, the alkaline environment formed by the reduction of metal ions removes the phosphate from the PNCS surface to generate P-free (P)NCS so that the phosphate does not participate in the subsequent catalytic reaction. The synthesized Ni-MoOx/(P)NCS catalysts exhibited outstanding catalytic properties for the hydrolysis of AB, with a high turnover frequency (TOF) value of up to 85.7 min-1, comparable to the most efficient noble-metal-free catalysts and commercial Pt/C catalyst ever reported for catalytic hydrogen production from AB hydrolysis. The superior performance of Ni-MoOx/(P)NCS can be ascribed to its well-dispersed ultrafine metal NPs, abundant surface basic sites, and electron-rich nickel species induced by strong electronic interactions between Ni-MoOx and (P)NCS. The strategy of combining multiple modification measures adopted in this study provides new insights into the development of economical and high-efficiency noble-metal-free catalysts for energy catalysis applications.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
ChemSusChem - (2024) vom: 14. März, Seite e202400415 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Liu, Weihong [VerfasserIn] |
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| Links: |
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| Themen: |
Ammonia borane |
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| Anmerkungen: |
Date Revised 12.04.2024 published: Print-Electronic Citation Status Publisher |
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| doi: |
10.1002/cssc.202400415 |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369722531 |
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| 245 | 1 | 0 | |a Ultrafine Ni-MoOx Nanoparticles Anchored on Nitrogen-Doped Carbon Nanosheets |b A Highly Efficient Noble-Metal-Free Catalyst for Ammonia Borane Hydrolysis |
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| 520 | |a © 2024 Wiley‐VCH GmbH. | ||
| 520 | |a The development of low-cost and high-efficiency catalysts for the hydrolytic dehydrogenation of ammonia borane (AB, NH3BH3) is still a challenging technology. Herein, ultrafine MoOx-doped Ni nanoparticles (~3.0 nm) were anchored on g-C3N4glucose-derived nitrogen-doped carbon nanosheets via a phosphate-mediated method. The strong adsorption of phosphate-mediated nitrogen-doped carbon nanosheets (PNCS) for metal ions is a key factor for the preparation of ultrasmall Ni nanoparticles (NPs). Notably, the alkaline environment formed by the reduction of metal ions removes the phosphate from the PNCS surface to generate P-free (P)NCS so that the phosphate does not participate in the subsequent catalytic reaction. The synthesized Ni-MoOx/(P)NCS catalysts exhibited outstanding catalytic properties for the hydrolysis of AB, with a high turnover frequency (TOF) value of up to 85.7 min-1, comparable to the most efficient noble-metal-free catalysts and commercial Pt/C catalyst ever reported for catalytic hydrogen production from AB hydrolysis. The superior performance of Ni-MoOx/(P)NCS can be ascribed to its well-dispersed ultrafine metal NPs, abundant surface basic sites, and electron-rich nickel species induced by strong electronic interactions between Ni-MoOx and (P)NCS. The strategy of combining multiple modification measures adopted in this study provides new insights into the development of economical and high-efficiency noble-metal-free catalysts for energy catalysis applications | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Ammonia borane | |
| 650 | 4 | |a Catalysis | |
| 650 | 4 | |a Dehydrogenation | |
| 650 | 4 | |a Non-noble metal | |
| 650 | 4 | |a Phosphate-mediated | |
| 700 | 1 | |a Yao, Longhua |e verfasserin |4 aut | |
| 700 | 1 | |a Sun, Xiongfei |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Gang |e verfasserin |4 aut | |
| 700 | 1 | |a Yao, Qilu |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Lei |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, Zhang-Hui |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g year:2024 |g day:14 |g month:03 |g pages:e202400415 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1002/cssc.202400415 |3 Volltext |
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