Hybrid of porous cobalt oxide nanospheres and nitrogen-doped graphene for applications in lithium-ion batteries and oxygen reduction reaction Original Research Article Journal of Power Sources, Volume 290, 20 September 2015, Pages 25-34 Mengmeng Zhang, Rong Li, Xiaoxuan Chang, Chao Xue, Xinglong Gou
Graphical abstractA new single-source precursor was developed from the hydrothermal reaction of graphite oxide, melamine resin monomers and CoCl2 to prepare a sandwich-like Co3O4/NG hybrid consisted of ultrathin nitrogen-doped graphene (NG) sheets and porous Co3O4 nanospheres. The Co3O4/NG hybrid possessed hierarchal pores, large surface area, high conductive network, and thus exhibited enhanced electrochemical performances as anode materials for Li-ion batteries and electrocatalysts for oxygen reduction reaction.
 | Graphene–cobalt phthalocyanine based on optoelectronic device for solar panel tracking systems Original Research Article Synthetic Metals, Volume 206, August 2015, Pages 15-23 A. Tataroglu, H. Tuncer, Ahmed A. Al-Ghamdi, A. Dere, B. Arif, S. Yol, N. Ozdemir, Farid El-Tantawy, F. Yakuphanoglu | A new method for the preparation of a Fe3O4/graphene hybrid material and its applications in electromagnetic wave absorption Original Research Article Materials Research Bulletin, Available online 15 May 2015, Pages Tsung-Yung Wu, Kai-Tai Lu, Cheng-Hsiung Peng, Yaw-Sun Hong, Chyi-Ching Hwang
Graphical abstract

A microwave-assisted solvothermal process was used to prepare Fe3O4 nanoparticles/graphene hybrids, which could be applied as an electromagnetic (EM) radiation absorbent. The absorber, composed of 20 wt% Fe3O4/graphene-epoxy, exhibited a dual-frequency reflection characteristic covering the C and Ku bands with maximum reflection losses of less than -20 dB at thicknesses of 4 and 5 mm. | |
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