Use of ionic liquids in synthesis of nanocrystals, nanorods and nanowires of elemental chalcogens

作者：Thirumurugan A^*

来源：Bulletin of Materials Science, 2007, 30(2): 179-182.

DOI：10.1007/s12034-007-0032-7

• ionic liquids
• nanostructures
• chalcogens

Nanocrystals of elemental chalcogens have been synthesized solvothermally by using elemental chalcogen powder (Se and Te) and NaBH4 in imidazolium[BMIM]-based ionic liquids as solvents at 180-200 degrees C. Nanorods and nanowires of Se and Te have been obtained when polyethyleneglycol was used as a co-solvent. Se nanowires have been prepared by using an ionic liquid with a small amount of water at room temperature. Sulfur microspheres have been prepared by heating sulfur powder in a mixture of [BMIM][BF4] and polyethyleneglycol over the temperature range 150-250 degrees C. The nanostructures obtained are single crystalline in all the cases.

• 出版日期2007-4