Isolating hydrogen in hexagonal boron nitride bubbles by a plasma treatment

Li He, Huishan Wang, Lingxiu Chen, Xiujun Wang, Hong Xie, Chengxin Jiang, Chen Li, Kenan Elibol, Jannik Meyer, Kenji Watanabe, Takashi Taniguchi, Zhangting Wu, Wenhui Wang, Zhenhua Ni, Xiangshui Miao, Chi Zhang, Daoli Zhang (), Haomin Wang () and Xiaoming Xie
Additional contact information
Li He: Huazhong University of Science and Technology
Huishan Wang: Chinese Academy of Sciences
Lingxiu Chen: Chinese Academy of Sciences
Xiujun Wang: Chinese Academy of Sciences
Hong Xie: Chinese Academy of Sciences
Chengxin Jiang: Chinese Academy of Sciences
Chen Li: University of Vienna
Kenan Elibol: University of Vienna
Jannik Meyer: University of Vienna
Kenji Watanabe: National Institute for Materials Science
Takashi Taniguchi: National Institute for Materials Science
Zhangting Wu: Southeast University
Wenhui Wang: Southeast University
Zhenhua Ni: Southeast University
Xiangshui Miao: Huazhong University of Science and Technology
Chi Zhang: Huazhong University of Science and Technology
Daoli Zhang: Huazhong University of Science and Technology
Haomin Wang: Chinese Academy of Sciences
Xiaoming Xie: Chinese Academy of Sciences

Nature Communications, 2019, vol. 10, issue 1, 1-9

Abstract: Abstract Atomically thin hexagonal boron nitride (h-BN) is often regarded as an elastic film that is impermeable to gases. The high stabilities in thermal and chemical properties allow h-BN to serve as a gas barrier under extreme conditions. Here, we demonstrate the isolation of hydrogen in bubbles of h-BN via plasma treatment. Detailed characterizations reveal that the substrates do not show chemical change after treatment. The bubbles are found to withstand thermal treatment in air, even at 800 °C. Scanning transmission electron microscopy investigation shows that the h-BN multilayer has a unique aligned porous stacking nature, which is essential for the character of being transparent to atomic hydrogen but impermeable to hydrogen molecules. In addition, we successfully demonstrated the extraction of hydrogen gases from gaseous compounds or mixtures containing hydrogen element. The successful production of hydrogen bubbles on h-BN flakes has potential for further application in nano/micro-electromechanical systems and hydrogen storage.

Date: 2019
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DOI: 10.1038/s41467-019-10660-9

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