Open AccessSynthetic Route of Layered Titanium Nitride Chloride TiNCl Using Sodium Amide
Author(s) -
Masashi Tanaka,
Noriyuki Kataoka,
Ryo Matsumoto,
Kei Inumaru,
Yoshihiko Takano,
Takayoshi Yokoya
Publication year - 2022
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c06986
Subject(s) - x ray photoelectron spectroscopy , materials science , nitride , titanium , sodium , titanium nitride , doping , chloride , superconductivity , inorganic chemistry , electrical resistivity and conductivity , photoemission spectroscopy , thermal decomposition , analytical chemistry (journal) , chemical engineering , chemistry , composite material , metallurgy , condensed matter physics , optoelectronics , organic chemistry , layer (electronics) , physics , engineering , quantum mechanics
A synthetic route in a closed system for layered titanium nitride chloride TiNCl has been developed using sodium amide NaNH 2 as a nitrogen source. A highly crystalline sample is obtained by an appropriate thermal decomposition of aminated titanium chloride. The obtained TiNCl was also characterized using electronic resistivity measurement and photoemission spectroscopy. TiNCl showed hopping conduction compatible with an in-gap state revealed by photoelectron spectroscopy. However, it appeared highly electron-doped, albeit without showing superconductivity. Comparison with the spectrum of superconducting sodium-doped samples suggests the presence of the microstructure required to exhibit superconductivity.