Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management
The effective identification of the active catalytic phase is essential to elucidate the growth mechanism of boron nitride nanotubes (BNNTs) and realize their controllable and scalable synthesis. However, owing to the complexity of chemical reactions during BNNT growth via chemical vapor deposition...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-04-01
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| Series: | Small Structures |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/sstr.202200282 |
| _version_ | 1797772537970556928 |
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| author | Qian He Liping Ding Liyun Wu Zhengyang Zhou Ying Wang Tao Xu Nanyang Wang Kai Zhang Xuebin Wang Feng Ding Jin Zhang Yagang Yao |
| author_facet | Qian He Liping Ding Liyun Wu Zhengyang Zhou Ying Wang Tao Xu Nanyang Wang Kai Zhang Xuebin Wang Feng Ding Jin Zhang Yagang Yao |
| author_sort | Qian He |
| collection | DOAJ |
| description | The effective identification of the active catalytic phase is essential to elucidate the growth mechanism of boron nitride nanotubes (BNNTs) and realize their controllable and scalable synthesis. However, owing to the complexity of chemical reactions during BNNT growth via chemical vapor deposition (CVD) and the lack of techniques for in situ characterization at high temperatures (1100–1300 °C), identifying the true catalyst during BNNT growth is challenging. Herein, an aluminum (Al)‐based active catalyst for BNNT growth via CVD is investigated. The initial Al2O3 nanoparticle catalyst precursor is transformed into an Al‐B phase prior to BNNT growth. Based on our density functional theory‐based molecular dynamic simulations of BNNT nucleation, AlB x (x = 1.5 to 2) shows catalytic activity for the formation of BN chains and BN six‐membered rings. Confirmatory experiments demonstrate that AlB2 is the active Al‐based catalyst during BNNT growth. A nanocomposite is prepared from cellulose nanocrystal, and purified BNNTs exhibited a high in‐plane thermal conductivity of 13.33 W m−1 K−1 at 20 wt% BNNTs. A further application for light‐emitting diode chip cooling demonstrates excellent heat‐dissipation performance of the nanocomposite film. Thus, this study can guide the controllable synthesis of high‐quality BNNTs and facilitate their use in thermal interface materials. |
| first_indexed | 2024-03-12T21:52:26Z |
| format | Article |
| id | doaj.art-9dcd0bffd77d4964bef566940e0d2048 |
| institution | Directory Open Access Journal |
| issn | 2688-4062 |
| language | English |
| last_indexed | 2024-03-12T21:52:26Z |
| publishDate | 2023-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Structures |
| spelling | doaj.art-9dcd0bffd77d4964bef566940e0d20482023-07-26T01:35:45ZengWiley-VCHSmall Structures2688-40622023-04-0144n/an/a10.1002/sstr.202200282Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal ManagementQian He0Liping Ding1Liyun Wu2Zhengyang Zhou3Ying Wang4Tao Xu5Nanyang Wang6Kai Zhang7Xuebin Wang8Feng Ding9Jin Zhang10Yagang Yao11National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaSchool of Electronic Information and Artificial Intelligence Shaanxi University of Science & Technology Xi'an 710021 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaUlsan National Institute of Science and Technology Center for Multidimensional Carbon Materials Institute for Basic Science Ulsan 44919 South KoreaCollege of Chemical and Molecular Engineering Peking University Beijing 100871 ChinaNational Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 ChinaThe effective identification of the active catalytic phase is essential to elucidate the growth mechanism of boron nitride nanotubes (BNNTs) and realize their controllable and scalable synthesis. However, owing to the complexity of chemical reactions during BNNT growth via chemical vapor deposition (CVD) and the lack of techniques for in situ characterization at high temperatures (1100–1300 °C), identifying the true catalyst during BNNT growth is challenging. Herein, an aluminum (Al)‐based active catalyst for BNNT growth via CVD is investigated. The initial Al2O3 nanoparticle catalyst precursor is transformed into an Al‐B phase prior to BNNT growth. Based on our density functional theory‐based molecular dynamic simulations of BNNT nucleation, AlB x (x = 1.5 to 2) shows catalytic activity for the formation of BN chains and BN six‐membered rings. Confirmatory experiments demonstrate that AlB2 is the active Al‐based catalyst during BNNT growth. A nanocomposite is prepared from cellulose nanocrystal, and purified BNNTs exhibited a high in‐plane thermal conductivity of 13.33 W m−1 K−1 at 20 wt% BNNTs. A further application for light‐emitting diode chip cooling demonstrates excellent heat‐dissipation performance of the nanocomposite film. Thus, this study can guide the controllable synthesis of high‐quality BNNTs and facilitate their use in thermal interface materials.https://doi.org/10.1002/sstr.202200282Al-based active catalystsboron nitride nanotubesdensity functional theorygrowth mechanismsthermal management |
| spellingShingle | Qian He Liping Ding Liyun Wu Zhengyang Zhou Ying Wang Tao Xu Nanyang Wang Kai Zhang Xuebin Wang Feng Ding Jin Zhang Yagang Yao Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management Small Structures Al-based active catalysts boron nitride nanotubes density functional theory growth mechanisms thermal management |
| title | Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management |
| title_full | Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management |
| title_fullStr | Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management |
| title_full_unstemmed | Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management |
| title_short | Growth of Boron Nitride Nanotube Over Al‐Based Active Catalyst and its Application in Thermal Management |
| title_sort | growth of boron nitride nanotube over al based active catalyst and its application in thermal management |
| topic | Al-based active catalysts boron nitride nanotubes density functional theory growth mechanisms thermal management |
| url | https://doi.org/10.1002/sstr.202200282 |
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