Mass Synthesis of TiNCl Powder via Fluidized Bed Chemical Vapor Deposition

TiNCl has garnered extensive attention in fields such as superconductivity, catalysis, and energy storage due to its special two-dimensional layered structure and excellent electrical performance. However, the efficient synthesis of TiNCl still faces challenges because the conventional synthesis methods suffered from complex procedures, lengthy synthesis times, and the inevitable formation of byproducts, limiting its practical applications. Herein, a narrow temperature range was found to directly synthesize TiNCl, and a fluidized bed chemical vapor deposition (FBCVD) process was developed to efficiently synthesize TiNCl, significantly simplifying the process and reducing the synthesis time from several weeks to about 30 min. The synthesis yield of the FBCVD process is 3529 times that of the precursor conversion method. Moreover, the separation method, degradation behavior, and strategies for inhibiting the degradation of TiNCl were systematically investigated. These results provide a pathway for taking TiNCl from the laboratory to practical applications.