Boron monosulfide nanosheets and rhombohedral boron monosulfide: synthesis, characterization, and intriguing properties

抄録

As 2D metal-free materials, we have experimentally synthesized rhombohedral boron monosulfide (r-BS) and its exfoliated nanosheets of BS [1, 2]. r-BS is found to be as a p-type semiconductor [3, 4], and have a great electrocatalytic property for oxygen evolution reaction (OER) in alkaline solution by mixing with graphene [5, 6]. Furthremore recent studies show photo-catalytic activity of r-BS [7], and long-term stability of r-BS mixed with graphene for OER by using Ni-foam [8, 9]. In this talk, details of synthesis, characterization and properties of boron monosulfide nanosheets and r-BS will be introduced.

Acknowledgement: This work was done with Prof. M. Miyauchi, Prof. M. Otani, Dr. S. Hagiwara, Dr. L. Li, Mr. C. Jiang, Dr. F. Kuroda, Mr. N. Watanabe, Prof. E. Nishibori, Mr. H. Kusaka, Dr. M. Toyoda, Prof. T. Tokunaga, Prof. A. Yamamoto, Prof. T. Fujita, Dr. M. Miyakawa, Prof. S. Saito, Prof. K. Sugawara, Dr. T. Taniguchi, Dr. K. Watanabe, Dr. S. Shinde, Prof. T. Sakurai, Ms. M. Lima, Mr. K. Miyazaki, Mr. K. Matsushita, Dr. M. Masuda, Dr. S. Ito, and Prof. H. Hosono. and other collaborators.

Reference:

[1] H. Kusaka, et al., J. Mater. Chem. A 9, 24631 (2021).

[2] T. Kondo, Vacuum and Surface Science 65 (2022) 302 (in Japanese).

[3] N. Watanabe, et al., Molecules 28, 1896 (2023).

[4] K. Sugawara, et al., Nano Lett. 23, 1673 (2023).

[5] L. Li, et al., Chem. Eng. J. 471, 144489 (2023).

[6] S. Hagiwara, et al., ACS Appl. Mater. Interfaces 15 (2023) 50174.

[7] K. Miyazaki, et al., Scientific Reports 13 (2023) 19540.

[8] L. Li, et al., Sci. Technol. Adv. Mater. 24 (2023) 2277681.

[9] L. Li and T. Kondo, Vacuum and Surface Science 67 (2024) 333 (in Japanese).