Year: 2025
Type: article
Abstract: Molybdenum disulfide (MoS2) has been widely employed in microelectronic devices, photoelectric detections, and lubricants. However, the poor oxidation resistance and interfacial bonding ability restrict its high-performance applications. In this work, a largely unexplored strategy by direct gas fluorination reaction is applied to rapidly fabricate high-quality fluorinated MoS2 (FMoS2). It has been demonstrated that the controllable fluorination is guided to solely eliminate unstable oxygen groups at the edge of MoS2 nanosheet rather than damage intact plane structure, which thus maintains pristine crystal structure and specifically introduces stable fluorine-containing groups at the edge, significantly strengthening the oxidation resistance ability. Meanwhile, the introduced fluorine with strongest electronegativity and fluorination-induced more S-vacancies can produce strong interactions with metal atoms, thereby synergistically strengthening interfacial bonding with metal substrate. As a typical application verification, FMoS2 exhibits obviously enhanced lubricating performances than that of pristine MoS2 because of enhanced oxidation resistance and interfacial bonding ability, accompanied by 50.2% and 74% decrease in friction coefficient and wear rate, respectively. This work offers a direct, rapid and controllable fluorination strategy to solve the long-standing challenges in significant MoS2 application fields, which also presents the universal potential to optimize other important 2D materials toward high-performance applications at harsh environments.
Source: Nano Research
Institution: Sichuan University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $5,290
OpenAlex ID: W4410526379