“…Furthermore, studies carried out on the mesoporous (mesoscopic) scale have demonstrated that CrN remains highly conductive and corrosion-resistant. [27][28][29][30] Experimental and theoretical studies over the past decade have shown that manipulating the physical and chemical properties of 2D materials enables them to be used in multi-functional devices such as field-effect transistors (FETs), [31][32][33][34] spin tunneling FETs, 35,36 magnetic tunnel junctions (MJTs), [36][37][38] photodetectors, 39,40 and gas sensors. [41][42][43] In particular, gas-sensing technologies have played an important role in the detection of toxic gases and the determination of air quality.…”