Virtual Simulation Guiding High-Risk Undergraduate Experiments about Chemical Synthesis of MoS2 Monolayers via a Schlenk Line

• Bang Lin Li ^[1] ; Liyu Peng ^[2] ; Cheng-Bin Gong ^[1] ; Jing Rong Chen ^[1] ; Hao Lin Zou ^[1] ; Hong Qun Luo ^[1] ; Nian Bing Li ^[1]
  1. [1] Southwest University

     Southwest University

     China

     
  2. [2] University College London

     University College London

     Reino Unido

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 99, Nº 9, 2022, págs. 3124-3132
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Recently, two-dimensional (2D) nanostructures, such as graphene and few-layer MoS2, have been applied to wide fields based on their intriguing performances, and they contribute to developments of clean energy, biomedicine, and environmental protection. The synthesis of 2D nanostructures involves chemistry, materials, and biology-associated interdisciplinary knowledge. Nevertheless, desired strategies that can be comprehensively and safely achieved by undergraduates or academic trainees are largely restricted considering the uses of toxic and pyrophoric reagents, high-risk manipulation, expensive instruments, and a time-consuming test period. Herein, chemically fundamental experiments are integrated with scientific frontiers, achieving the development of undergraduate’s experimental projects based on up-to-the-minute academic results. In order to promote the high-efficient study and eliminate the risks among our learners, the virtual simulation courses are well-integrated, and students can independently complete the synthesis of 2D MoS2 nanomateirals without the face-to-face guidance of mentors. Significantly, several characteristics are equipped in this project: (1) Students can master the uses of oxygen-sensitive, moisture-sensitive reagents and skills for operating high-risk reactions via the virtual system; (2) Universal preparation approaches of 2D nanomaterials, based on the Schlenk technique, are presented; (3) Students’ understanding of MoS2 monolayer characterization, properties, and applications is remarkably increased. This project aims at inspiring students’ understanding for scientific frontiers, improving their academic and innovative skills, as well as expanding their advanced perspective.