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다차원 탄소재료 연구단
다차원 탄소재료 연구단
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Proton conductivity of a hexagonal boron nitride membrane and its energy applications

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Title
Proton conductivity of a hexagonal boron nitride membrane and its energy applications
Author(s)
Yoon S.I.; Ma K.Y.; Kim T.-Y.; Hyeon Suk Shin
Publication Date
2020-02
Journal
JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.6, pp.2898 - 2912
Publisher
ROYAL SOC CHEMISTRY
Abstract
© 2020 The Royal Society of Chemistry.Hexagonal boron nitride (h-BN) is a promising material for membrane applications due to its high chemical stability in the presence of solvents, outstanding mechanical strength, and high thermal stability. Theoretically, h-BN has very small pores (approximately 3.0 Å2) at the centers of hexagonal rings formed by the different electron cloud densities of B and N atoms. Through the centers of these rings, h-BN allows protons to pass while bigger ions are blocked. It has been demonstrated that h-BN exhibits good proton conductivity (approximately 100 mS cm-1) and a separation factor (approximately 10) for protons and deuterons. Furthermore, the van der Waals gaps between layers of 2D materials can be utilized as channels to allow protons to pass while blocking bigger ions. For real-world applications, such as fuel cells or batteries, large-scale h-BN has been applied and exhibited good performance. In this review, we introduce preparation methods for h-BN, theoretical calculations of the proton conductivity of h-BN, and real-world applications of h-BN membranes. Finally, we provide additional perspectives regarding h-BN membranes
URI
https://pr.ibs.re.kr/handle/8788114/7182
ISSN
2050-7488
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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