An Efficient Boron Source Activation Strategy for the Low‑Temperature Synthesis of Boron Nitride Nanotubes  

作　　者：Ying Wang Kai Zhang Liping Ding Liyun Wu Songfeng E Qian He Nanyang Wang Hui Zuo Zhengyang Zhou Feng Ding Yue Hu Jin Zhang Yagang Yao 

机构地区：[1]National Laboratory of Solid State Microstructures,College of Engineering and Applied Sciences,Jiangsu Key Laboratory of Artificial Functional Materials,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,People’s Republic of China [2]School of Electronic Information and Artificial Intelligence,Shaanxi University of Science&Technology,Xian 710000,People’s Republic of China [3]College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xian 710000,People’s Republic of China [4]Key Laboratory of Carbon Materials of Zhejiang Province,College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325000,People’s Republic of China [5]Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518000,People’s Republic of China [6]College of Chemical and Molecular Engineering,Peking University,Beijing 100871,People’s Republic of China

出　　处：《Nano-Micro Letters》2025年第1期548-558,共11页纳微快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.51972162);the Fundamental Research Funds for the Central Universities(No.2024300440).

摘　　要：Lowering the synthesis temperature of boron nitride nanotubes(BNNTs)is crucial for their development.The primary reason for adopting a high temperature is to enable the effective activation of highmelting-point solid boron.In this study,we developed a novel approach for efficiently activating boron by introducing alkali metal compounds into the conventional MgO–B system.This approach can be adopted to form various low-melting-point AM–Mg–B–O growth systems.These growth systems have improved catalytic capability and reactivity even under low-temperature conditions,facilitating the synthesis of BNNTs at temperatures as low as 850℃.In addition,molecular dynamics simulations based on density functional theory theoretically demonstrate that the systems maintain a liquid state at low temperatures and interact with N atoms to form BN chains.These findings offer novel insights into the design of boron activation and are expected to facilitate research on the low-temperature synthesis of BNNTs.

关 键 词：Boron nitride nanotubes LOW-TEMPERATURE Boron activation Density functional theory 

分 类 号：TQ128[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]