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ACS Appl Mater Interfaces. 2017 May 24;9(20):17613-17619. doi: 10.1021/acsami.7b02546. Epub 2017 May 10.

CO2/Water Emulsions Stabilized by Partially Reduced Graphene Oxide.

Liu C1,2, Zhang J1,2, Sang X1,2, Kang X1,2, Zhang B1,2, Luo T1, Tan X1, Han B1,2, Zheng L3, Zhang J3.

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Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R.China.
School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences , Beijing 100049, P. R.China.
Beijing Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences , Beijing 100049, P. R.China.


Using functional materials to stabilize emulsions of carbon dioxide (CO2) and water is a promising way to expand the utility of CO2 and functional materials. Here we demonstrate for the first time that the partially reduced graphene oxide (rGO) can well stabilize the emulsion of CO2 and water without the aid of any additional emulsifier or surface modification for rGO. More interestingly, such a novel kind of emulsion provides a facile and versatile route for constructing highly porous three-dimensional rGO materials, including rGO, metal/rGO, and metal oxide/rGO networks. The as-synthesized Au/rGO composite is highly active in catalyzing 4-nitrophenol reduction and styrene epoxidation.


CO2; catalysis; emulsion; graphene oxide; water


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