Hydrogen halide-promoted construction of 3D graphene aerogels

ZHANG Xu; ZHOU Ying; WANG Chun-lei; QIU Jie-shan

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Article Navigation > New Carbon Mater. > 2016 > 31(4): 407-414

ZHANG Xu, ZHOU Ying, WANG Chun-lei, QIU Jie-shan. Hydrogen halide-promoted construction of 3D graphene aerogels. New Carbon Mater., 2016, 31(4): 407-414.

Citation:

ZHANG Xu, ZHOU Ying, WANG Chun-lei, QIU Jie-shan. Hydrogen halide-promoted construction of 3D graphene aerogels. New Carbon Mater., 2016, 31(4): 407-414.

ZHANG Xu, ZHOU Ying, WANG Chun-lei, QIU Jie-shan. Hydrogen halide-promoted construction of 3D graphene aerogels. New Carbon Mater., 2016, 31(4): 407-414.

Citation:

ZHANG Xu, ZHOU Ying, WANG Chun-lei, QIU Jie-shan. Hydrogen halide-promoted construction of 3D graphene aerogels. New Carbon Mater., 2016, 31(4): 407-414.

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Hydrogen halide-promoted construction of 3D graphene aerogels

1.
School of Petroleum & Chemical Engineering, Dalian University of Technolgy, Panjin 124221, China;
2.
Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, State Key Lab of Fine Chemicals, Dalian University of Technology, Dalian 116024, China

Funds: National Natural Science Foundation of China(21336001,21276045,21003016).

Received Date: 2016-01-28
Accepted Date: 2016-08-29
Rev Recd Date: 2016-03-28
Publish Date: 2016-08-28

Abstract

Abstract

Three-dimensional (3D) graphene aerogels were fabricated from graphene oxide using HBr, HCl and HI as promoters. The structures and properties of the aerogels were characterized by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy and thermal gravimetric analysis. It was found that 3D graphene aerogels can be made in the presence of HI. Their formation is promoted by the synergistic effects of the acidic H⁺ and the reductive I^-. The electrical conductivity and thermal stability of the aerogels were significantly improved compared with those of graphene oxide. When the aerogels were used as supercapacitor electrodes, excellent specific capacitance and rate capability were achieved.
- Graphene aerogels,
- Hydrohalic acid,
- Supercapacitors

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References(25)

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