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Massive-Exfoliation of Magnetic Graphene from Acceptor–Type GIC by Long-Chain Alkyl Amine
 
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技術名稱
Technology
Massive-Exfoliation of Magnetic Graphene from Acceptor–Type GIC by Long-Chain Alkyl Amine
發明人
Inventor
氏原真樹, 今榮東洋子,
所有權人
Asignee
國立臺灣科技大學

專利國家
Country
申請號
Application No.
專利號
Patent No.
中心案號
Serial No.
中華民國 103100605 I 540095 1020091TW0
 
點閱數:193
技術摘要:
Magnetic graphene can be prepared from a graphite intercalation compound (GIC) with accepter-type intercalator, FeCl3. When the FeCl3-GIC is treated with primary amines at 90 °C for 6 h, the GIC is expanded to a few layers. The expansion is further facilitated, as the alkyl chain of primary amines becomes long, while tertiary amines cannot penetrate inside the GIC because of their steric hindrance. Then the expanded-GIC is sonicated in pyridine to exfoliate the graphene sheets. The obtained product indicated a typical superparamagnetic behavior and had an excellent durability in acid conditions. This approach using FeCl3-GIC, primary amine and pyridine is preferable for the mass production of magnetic graphene because of the mild reaction condition and the short treatment time for exfoliation from the chemically stable FeCl3-GIC.


 
   




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