4.6 Review

Hydroxylated boron nitride materials: from structures to functional applications

Journal

JOURNAL OF MATERIALS SCIENCE
Volume 56, Issue 6, Pages 4053-4079

Publisher

SPRINGER
DOI: 10.1007/s10853-020-05513-6

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Funding

  1. Universita degli Studi di Sassari within the CRUI-CARE Agreement

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This review summarizes the latest techniques for hydroxylating bulk and nanoscale BN materials, discussing different synthesis routes and possible research and development directions. The research indicates that employing various strategies for BN hydroxylation is an effective method to improve the performance of BN nanomaterials, facilitating enhanced solubility and production of high-quality nanocomposites.
Functionalization of boron nitride (BN) materials with hydroxyls has attracted great attention to accomplish better performances at micro- and nanoscale. BN surface hydroxylation, in fact, induces a change in properties and allows expanding the fields of application. In this review, we have summarized the state-of-the-art in developing hydroxylated bulk and nanoscale BN materials. The different synthesis routes to develop hydroxyl BN have been critically discussed. What emerges is the great variety of possible strategies to achieve BN hydroxylation, which, in turn, represents one of the most suitable methods to improve the solubility of BN nanomaterials. The improved stability of BN solutions creates conditions for producing high-quality nanocomposites. Furthermore, new interesting optical and electronic properties may arise from the functionalization by OH groups as displayed by a wide range of both theoretical and experimental studies. After the presentation of the most significant systems and methodologies, we question of future perspective and important trends of the next generation BN materials as well as the possible areas of advanced research.

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