Vapor diffusion synthesis of rugby-shaped CoFe2O4/graphene composites as absorbing materials Original Research Article Journal of Alloys and Compounds, Available online 19 January 2015, Pages Shenli Zhang, Qingze Jiao, Ju Hu, Jingjing Li, Yun Zhao, Hansheng Li, Qin Wu
Graphical abstractCoFe2O4 rugbies/graphene composites were prepared using a vapor diffusion method followed by calcination. As-synthesized rugby-like CoFe2O4 particles were distributed on the graphene sheet. PVP played a key role for the formation of rugby-shaped morphology of CoFe2O4 particles. A minimum reflection loss of -39.0 dB was observed at 10.9 GHz for the CoFe2O4 rugbies/graphene composites with a thickness of 2 mm, and the effective absorption bandwidth was 4.7 GHz. The CoFe2O4 rugbies/graphene composites exhibited better microwave absorbing performance than that of the CoFe2O4 nanoparticles/graphene composites prepared without PVP.
 | Synergistic effect of combining carbon nanotubes and graphene oxide ins mixed matrix membranes for efficient CO2 separation Original Research Article Journal of Membrane Science, Available online 19 January 2015, Pages Xueqin Li, Lu Ma, Haiyang Zhang, Shaofei Wang, Zhongyi Jiang, Ruili Guo, Hong Wu, XingZhong Cao, Jing Yang, Baoyi Wang
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| Synergistic effect of oxygen and nitrogen Functionalities for graphene-based quantum Dots used in photocatalytic H2 production from water decomposition Original Research Article Nano Energy, Available online 19 January 2015, Pages Te-Fu Yeh, Shean-Jen Chen, Hsisheng Teng
Graphical abstractNitrogen-doped graphene oxide quantum dots, which are based on the abundant elements C, H, O, and N, exhibit a single-crystalline structure consisting of one to three graphene sheets. The quantum dots, when deposited with Pt as cocatalyst for photocatalytic water splitting, steadily catalyze H2 production from water containing triethanolamine at a high quantum yield under visible light illumination.
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