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| 论文编号: |
122214O120130040 |
| 第一作者所在部门: |
909组 |
| 中文论文题目: |
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| 英文论文题目: |
Large scale production of high qualified graphene by ultrasonic exfoliation of expanded graphite under the promotion of NH42CO3 decomposition
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| 论文题目英文: |
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| 作者: |
王云伟
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| 论文出处: |
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| 刊物名称: |
Nanotechnology
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| 年: |
2013
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| 卷: |
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| 期: |
24 |
| 页: |
475602-1-475602-2 |
| 联系作者: |
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| 收录类别: |
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| 影响因子: |
3.842
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| 摘要: |
Highly-qualified graphene was prepared by the ultrasonic exfoliation of commercial expanded graphite (EG) under the promotion of .NH4/2CO3 decomposition. The yield of graphene from the first exfoliation is 7 wt%, and it can be increased to more than 65 wt% by repeated exfoliations. Atomic force microscopy, x-ray photoelectron spectroscopy and Raman analysis show that the as-prepared graphene only has a few defects or oxides, and more than 95% of
the graphene flakes have a thickness of 1 nm. The electrochemical performance of the as-prepared graphene is comparable to reduced graphene oxide in the determination of dopamine (DA) from the mixed solution of ascorbic acid, uric acid and DA. These results show that the decomposition of .NH4/2CO3 molecules in the EG layers under ultrasonication promotes the exfoliation of graphite and provides a low-priced route for large scale production of highly-quality graphene. |
| 英文摘要: |
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