Gas-sensing performance of transition-metal surface-modified MnX 2 (X = Se, Te) toward SF 6 decomposition products (SOF 2 and SO 2 F 2 ): a first-principles study

Transition-metal surface modification on MnX 2 monolayers achieves highly sensitive detection of SF 6 decomposition products. Co–MnTe 2 demonstrates superior work-function response and rapid recovery due to effective interfacial dipole modulation.