Facile Synthesis and Characterization of Molybdenum Carbides/Carbon Nanocomposites by Laser Pyrolysis

Théo Caroff (1, 2) , Pitalinani Badaki (3, 4) , Nathalie Herbert (4) , Franck Tessier (4) , David Berthebaud (1, 2) , Naoki Ohashi (1, 2) , Tetsuo Uchikoshi (1, 2) , Pierre Lonchambon (3) , Nathalie Herlin-Boime (3) , Fabien Grasset (1, 4)

1 LINK - Laboratory for Innovative Key Materials and Structures
2 NIMS - National Institute for Materials Science
3 LEDNA - Laboratoire Edifices Nanométriques
4 ISCR - Institut des Sciences Chimiques de Rennes

This short communication reports on the facile and scalable synthesis and characterization of molybdenum carbides/carbon nanocomposites prepared by laser pyrolysis in a one-step process. Water and commercial molybdenum oxide were used as low-cost environmentally friendly precursors. The nanocomposites are mainly composed of two types of carbides with different apparent crystallite sizes, 21 ± 1 nm and 9 ± 1 nm for Mo2C and MoC1−x, respectively. Thanks to a simple annealing at 500 °C under argon, it was possible to increase the specific surface area around 50 m2/g without changing the morphology of the nanocomposite.

Keywords: molybdenum carbides; laser pyrolysis; Nanocomposites

Domains: Material chemistry

Théo Caroff, Pitalinani Badaki, Nathalie Herbert, Franck Tessier, David Berthebaud, et al.. Facile Synthesis and Characterization of Molybdenum Carbides/Carbon Nanocomposites by Laser Pyrolysis. Nanomanufacturing, 2022, 2 (3), pp.112-123. ⟨10.3390/nanomanufacturing2030009⟩. ⟨cea-03755521⟩