[2P01-53] Poster Presentation

[2P36] Evaluation of NH₃ adsorption properties on hydrogen bolide sheets

*Kosei Fukuda¹, Shin-ichi Ito², Miwa Hikichi², Iwao Matsuda³, Takahiro Kondo^2,4 (1. Graduate School of Science and Technology, University of Tsukuba, 2. Department of Materials Science and Tsukuba Research Center for Energy Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba,, 3. Institute for Solid State Physics, The University of Tokyo, 4. The Advanced Institute for Materials Research, Tohoku University)

Hydrogen boride (HB) sheets are light weight two-dimensional materials firstly synthesized in 2017, which have solid acid catalytic property originated from the protonic nature of hydrogen in HB. In this work, we found that HB adsorb NH₃ by exposing it to ammonia water vapor at 300 K and drying it at 343 K. The IR peak at 2500 cm^-1 was found to shift about 40 cm^-1 to lower wavenumbers, indicating terminal B-H bonds are weakened by NH₃ adsorption. We also found that NH₃ desorb from HB at 640 K, indicating that NH₃ chemisorbed on HB sheets. Further details about NH₃ adsorption will be presented.