@article{oai:u-ryukyu.repo.nii.ac.jp:02011297,
 author = {Nakagawa, Tessui and Uesato, Hiroki and Burrell, Anthony K. and Ichikawa, Takayuki and Miyaoka, Hiroki and Davis, Benjamin L. and Kojima, Yoshitsugu},
 issue = {21},
 journal = {Energies},
 month = {Oct},
 note = {“One-pot regeneration”, which is simple regneneration method of ammonia borane (AB) using hydrazine and liquid ammonia, enables conversion of AB from hexagonal boron nitride (h-BN) after milling hydrogenation. Solution ^<11>B-NMR revealed the presence of AB after NH_3/N_2H_4 treatment of milled h-BN (BNH_x) although the yield of AB was less than 5%. The conversion mechanism was clarified as B-H bonds on the h-BN surface created by ball-milling under hydrogen pressure have an ability to form AB, which was confirmed by Thermogravimetry-Residual Gas Analysis (TG-RGA) and Infrared (IR) analysis. The reaction routes are also the same as regeneration route of polyborazylene because intermediates of AB such as (B(NH_2)_3 and hydrazine borane were found by solution ^<11>B-NMR after soaking BNH_x in liquid NH_3 and hydrazine, respectively. Because of the fact that all reactions proceed on the h-BN surface and no reaction proceeds when neat h-BN is treated, breaking of B_3N_3 ring structure and then creation of B-H bond is the key issue to increase conversion yield of AB., 論文},
 title = {Surface-Controlled Conversion of Ammonia Borane from Boron Nitride},
 volume = {13},
 year = {2020}
}