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ºÃÏñ¿ÉÒÔ°¡£¬ÕâÊÇÎÒ¿´µ½µÄһƪÎÄÏ×£ºPreparation of a batch of a colloidal suspension of reduced graphene oxide
Graphite oxide (GO) was synthesized from natural graphite(SP-1, Bay Carbon, MI) by the modified Hummers method.
A colloidal suspension of graphene oxide platelets in puri-fied water (50 mg of GO, 3 mg/ml) was prepared in a 250 ml
flask with 2 h of bath ultrasound (VWR B2500A-MT). A sus-pension of graphene oxide in the H2O/N,N -dimethylformam-ide (DMF) solvent mixture was obtained by addition of DMF(volume ratio of DMF:H2O = 9:1) into the aqueous grapheneoxide suspensions. Hydrazine monohydrate (1 l l per 3 mg ofGO) (98%, Aldrich) was subsequently added to the suspension.
Additional stirring with a Teflon-coated stirring bar at 80¡æ  for 12 h yielded a black suspension of reduced graphene oxide platelets.
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7Â¥: Originally posted by baiwanqiao at 2012-10-22 13:13:17
ºÃÏñ¿ÉÒÔ°¡£¬ÕâÊÇÎÒ¿´µ½µÄһƪÎÄÏ×£ºPreparation of a batch of a colloidal suspension of reduced graphene oxide
Graphite oxide (GO) was synthesized from natural graphite(SP-1, Bay Carbon, MI) by the m ...

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7Â¥: Originally posted by baiwanqiao at 2012-10-22 13:13:17
ºÃÏñ¿ÉÒÔ°¡£¬ÕâÊÇÎÒ¿´µ½µÄһƪÎÄÏ×£ºPreparation of a batch of a colloidal suspension of reduced graphene oxide
Graphite oxide (GO) was synthesized from natural graphite(SP-1, Bay Carbon, MI) by the m ...

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