Efficient synthesis of graphene nanoribbons sonochemically cut from graphene sheets

By Zhong‐Shuai Wu, W. Ren, Libo Gao, Bilu Liu, Jinping Zhao, Hui‐Ming Cheng. 2010

145 citations recorded by the source corpus.

AbstractWe report a facile approach to synthesize narrow and long graphene nanoribbons (GNRs) by sonochemically cutting chemically derived graphene sheets (GSs). The yield of GNRs can reach ∼5 wt% of the starting GSs. The resulting GNRs are several micrometers in length, with ∼75% being single-layer, and ∼40% being narrower than 20 nm in width. A chemical tailoring mechanism involving oxygen-unzipping of GSs under sonochemical conditions is proposed on the basis of experimental observations and previously reported theoretical calculations; it is suggested that the formation and distribution of line faults on graphite oxide and GSs play crucial roles in the formation of GNRs. These results open up the possibilities of the large-scale synthesis and various technological applications of GNRs.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/24916f22ab9c610c32fa5da3f0ddadb89cbefaa5

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In Biomedical Engineering

1. Hongjie Dai
2. Zhuang Liu
3. Kevin D. Welsher
4. Yun Wang
5. John Tze-Wei Yeow
6. T. Goswami
7. M. Paradise

In Materials Chemistry

1. Hongjie Dai
2. Liying Jiao
3. Li Zhang
4. Jie Liu
5. Lei Ding
6. Frank Schwierz
7. N. M. R. Peres
8. Zhuang Liu

Citations in the corpus

• Aligned graphene nanoribbons and crossbars from unzipped carbon nanotubes (2010, methodology): “Several approaches have been developed to make GNRs, such as lithographic patterning [5–9], sonochemical methods [1, 10], chemical vapor deposition (CVD) [11, 12], nanocutting [13–15] and unzipping of carbon nanotubes (CNTs) [16–22].”