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首页> 外文期刊>Advanced Functional Materials >From Highly Purified Boron Nitride to Boron Nitride-Based Heterostructures: An Inorganic Precursor-Based Strategy
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From Highly Purified Boron Nitride to Boron Nitride-Based Heterostructures: An Inorganic Precursor-Based Strategy

机译：从高度纯化的氮化硼到基于氮化硼的异质结构：基于无机前体的策略

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摘要

The current approaches used to fabricate hexagonal boron nitrides (h-BN) from boron trioxide and urea always results in contamination of the h-BN product with carbon/oxygen. Thus, discovering a facile way of mass producing high-purity h-BN remains a challenge. A simple yet highly efficient thermal treatment approach to large-scale fabrication of nanoporous h-BN with high yield, high purity, and high crystallinity is described using NaNH2 and NaBH4 as the oxygen- and carbon-free precursors. The unique properties of inorganic metal salts, i.e., high melting point and strong electrostatic interaction with carbon substrates, render this strategy suitable for the production of homogeneous h-BN/mesoporous carbon and h-BN/carbon nanotube heterostructures of high crystallinity, high h-BN dispersity, and with a strong interfacial effect. These unique features make them promising candidates for supercapacitor applications, resulting a significantly enhanced specific capacitance. This study provides new insight into the fabrication of high-purity h-BN and h-BN-based heterostructures thus expanding their application in the field of energy storage and transformation.
机译：由三氧化硼和尿素制造六方氮化硼（h-BN）的当前方法始终会导致h-BN产物被碳/氧污染。因此，发现大量生产高纯度h-BN的简便方法仍然是一个挑战。使用NaNH2和NaBH4作为无氧和无碳的前体，描述了一种用于大规模生产高产率，高纯度和高结晶度的纳米多孔h-BN的简单而高效的热处理方法。无机金属盐的独特性质，即高熔点和与碳基质的强静电相互作用，使该策略适合于生产高结晶度，高h的均相h-BN /介孔碳和h-BN /碳纳米管异质结构-BN分散性强，具有很强的界面作用。这些独特的功能使其成为超级电容器应用的有希望的候选者，从而显着提高了比电容。这项研究为高纯度h-BN和基于h-BN的异质结构的制造提供了新的见识，从而扩展了它们在能量存储和转换领域的应用。

著录项

  • 来源
    《Advanced Functional Materials》 |2019年第50期|1906284.1-1906284.8|共8页
  • 作者

    Chen Hao; Yang Zhenzhen; Guo Wei; Dunlap John R.; Liang Jiyuan; Sun Yifan; Jie Kecheng; Wang Song; Fu Jie; Dai Sheng;

  • 作者单位

    Zhejiang Univ Coll Chem & Biol Engn Minist Educ Key Lab Biomass Chem Engn Hangzhou 310027 Peoples R China|Oak Ridge Natl Lab Chem Sci Div Oak Ridge TN 37831 USA|Univ Tennessee Dept Chem Knoxville TN 37996 USA;

    Oak Ridge Natl Lab Chem Sci Div Oak Ridge TN 37831 USA|Univ Tennessee Dept Chem Knoxville TN 37996 USA;

    Univ Tennessee Dept Chem Knoxville TN 37996 USA;

    Univ Tennessee JIAM Microscopy Ctr Knoxville TN 37996 USA;

    Oak Ridge Natl Lab Chem Sci Div Oak Ridge TN 37831 USA;

    Univ Calif Riverside Dept Chem Riverside CA 92521 USA;

    Zhejiang Univ Coll Chem & Biol Engn Minist Educ Key Lab Biomass Chem Engn Hangzhou 310027 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    boron nitride; heterostructures; mesoporous carbon; supercapacitors;

    机译：氮化硼异质结构介孔碳超级电容器;

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