Novel Approach for Synthesis of Graphene-like Phases by Pulsed Laser Ablation in a Flow-Mode Suspension
Ivalina Avramova,
Dimitar A. Dimov,
Nadya Stankova,
Miroslav Petrov,
Desislava Karaivanova,
Georgi Avdeev,
Stoyan Russev,
Daniela Karashanova,
Biliana Georgieva,
Evgeniya Valcheva,
Teodor Milenov
Affiliations
Ivalina Avramova
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Bl. 11, 1113 Sofia, Bulgaria
Dimitar A. Dimov
“Academician Emil Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
Nadya Stankova
“Academician Emil Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
Miroslav Petrov
“Academician Emil Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
Desislava Karaivanova
“Academician Emil Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
Georgi Avdeev
“Academician.Rostislav Kaishev” Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Bl. 11, 1113 Sofia, Bulgaria
Stoyan Russev
Faculty of Physics, University of Sofia, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria
Daniela Karashanova
“AcademicianJordan Malinowski” Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Bl. 109, 1113 Sofia, Bulgaria
Biliana Georgieva
“AcademicianJordan Malinowski” Institute of Optical Materials and Technologies, Bulgarian Academy of Sciences, Acad. G. Bonchev Street, Bl. 109, 1113 Sofia, Bulgaria
Evgeniya Valcheva
Faculty of Physics, University of Sofia, 5 James Bourchier Blvd., 1164 Sofia, Bulgaria
Teodor Milenov
“Academician Emil Djakov” Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
The present study investigates the possibility of obtaining graphene-like phases (defected graphene, graphene oxide, and reduced graphene oxide) as fine suspensions by applying a novel pulsed laser ablation (PLA) approach in flow mode. Two types of suspensions of microcrystalline graphite in aqueous suspensions and two types of microcrystalline graphite in suspensions of 6% hydrogen peroxide solution were irradiated in a quartz tube through which they flow. The third (λ = 355 nm) and fourth harmonics (λ = 266 nm) of an Nd:YAG laser system (15 ns pulse duration and 10 Hz pulse repetition rate) were used. The morphology of the obtained particles was studied by transmission electron microscopy (TEM). Their phase composition and structure were explored by X-ray photoelectron spectroscopy, X-ray diffractometry, and Raman spectroscopy.
