کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1515822 | 1511554 | 2012 | 4 صفحه PDF | دانلود رایگان |

Graphite intercalation compounds (GICs) of bromine were rapidly heat-treated and exfoliated at 500 °C in vacuum to obtain oxygen-free exfoliated graphite materials. We developed a continuous process—from intercalation to exfoliation—that could be conducted in a single glass tube without exposure to air so as to obtain oxygen-free exfoliated graphite products. It was possible to repeat the process of intercalation and exfoliation several times using bromine, which enabled large-scale exfoliation of graphite at 500 °C—comparable to that obtained from GICs produced from sulfuric acid.
► Graphite is exfoliated in vacuumed glass tube even at low temperature, 500 °C, under oxygen-free situation.
► Succeeded a continuous process from synthesis of GIC to exfoliation in same one glass tube.
► Also succeeded a repeat process of intercalation and exfoliation to exfoliate graphite as much as possible.
► Exfoliation degree, structure, and morphology were compared with typical exfoliation using sulfuric acid.
Journal: Journal of Physics and Chemistry of Solids - Volume 73, Issue 12, December 2012, Pages 1420–1423