Fabrication and properties of graphene nanoribbon aerogels using Pickering emulsions as the template

HU Xiao-jing; ZHAO Zong-bin; LIU Yang; ZHAN Han; LIANG Jing-jing; QIU Jie-shan

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Article Navigation > New Carbon Mater. > 2019 > 34(4): 358-366

HU Xiao-jing, ZHAO Zong-bin, LIU Yang, ZHAN Han, LIANG Jing-jing, QIU Jie-shan. Fabrication and properties of graphene nanoribbon aerogels using Pickering emulsions as the template. New Carbon Mater., 2019, 34(4): 358-366.

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Fabrication and properties of graphene nanoribbon aerogels using Pickering emulsions as the template

State Key Lab. of Fine Chemicals, Liaoning Key Lab. for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, China

Funds: National Natural Science Foundation of China (51672033, U1610255, U1610105).

Received Date: 2019-04-25
Accepted Date: 2019-09-10
Rev Recd Date: 2019-07-27
Publish Date: 2019-08-28

Abstract

Abstract

Graphene-based aerogels have attracted considerable attention because of their excellent properties, such as low density, high porosity, large specific surface area, and outstanding electrical conductivity, with promising use in the fields of sensors, catalysis, and energy-related storage. Here graphene nanoribbons were prepared by unzipping carbon nanotubes. Graphene nanoribbon aerogels were fabricated using Pickering emulsions as the soft template and poly(propylene glycol)bis(2-aminopropyl ether) (D400) as the co-surfactant and cross-linker. It was shown that aerogels prepared from an emulsion with a water/oil ratio of 7:1 have a uniform pore structure and excellent mechanical properties. The aerogels exhibit remarkable shape recovery after compression/release tests for 1 000 cycles at 50% strain. The structure can fully recover even after compression/release tests for 50 cycles at a 95% strain. The electrical conductivity of the aerogels is proportional to the strain regardless of the strain rate.
- Graphene nanoribbon aerogels,
- Pickering emulsion,
- Superelasticity,
- Compressibility,
- Electromechanical performance

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