Inhibiting the shuttle effect of Li–S battery with a graphene oxide coating separator: Performance improvement and mechanism study Original Research Article
Journal of Power Sources, Volume 342, 28 February 2017, Pages 929-938
Yong Jiang, Fang Chen, Yang Gao, Yanyan Wang, Shanshan Wang, Qiang Gao, Zheng Jiao, Bing Zhao, Zhiwen Chen
Graphical abstractGraphene oxide coating separator is used to inhibit the shuttle effect of Li–S battery with improved electrochemical performance, and the improvement mechanism is studied.Image 1
 | Spontaneous Formation of Graphene on Diamond (111) Driven by B-doping Induced Surface Reconstruction Original Research Article
Carbon, Available online 11 January 2017, Pages
Chao Lu, Hongxin Yang, Jing Xu, Lifang Xu, Mairbek Chshiev, Shengbai Zhang, Changzhi Gu
Graphical abstractSpontaneous construction of graphene on boron-doped diamond (111) surface has been found in first-principles calculations. Boron-doping-induced surface reconstruction is the mechanism responsible for the diamond-to-graphene phase transition. Furthermore, the effect on the surface is unexpectedly observed at any doping depth down to the 7th layer, and a low concentration of substituent boron – only ¼ – is effective for graphene formation. Amazingly, when boron atoms are incorporated into the fifth layer, the direct optimization of the 1×1 surface automatically gives rise to a graphene structure from the first bilayer with no energy barrier, indicating that the formation of graphene is spontaneous. These findings provide an alternative strategy for graphene synthesis on wide-gap insulators with high thermal conductivity. (a)and (b) Optimized diamond (111) with 1/4 of the carbon atoms in the first and third layer replaced by boron atoms, respectively. (c) and (d) Initial and optimized structures, respectively, both with 1/4 of the carbon atoms in the fifth layer replaced by boron atoms. (e) and (f) Initial and optimized structures, respectively, both with 1/16 boron doping concentration in the fifth layer. Pink balls represent incorporated boron atoms, and grey balls indicate carbon atoms. In (e) and (f), the blue balls represent carbon atoms before and after forming hexagonal graphite structure in the first bilayer, while the purple balls represent carbon atoms before and after forming sp2 bonds with Ctop atom.Image
 | Hybrid luminescent materials of graphene oxide and rare-earth complexes with stronger luminescence intensity and better thermal stability Original Research Article
Dyes and Pigments, Available online 10 January 2017, Pages
Xiaoxiong Zhang, Wenjun Zhang, Yingjie Li, Cuiluo Li
Graphical abstractA novel graphene oxide/rare earth complexes hybrid materials were prepare by self-assembling. The materials exhibit the characteristic color of Eu3+. And PMA can improve light and thermal stability of luminescence materials but also prevent the quenching effect of GOSs in this materials. This suggests that rational self-assembling can improve luminescence performance of GOSs and rare earth hybrid materials.Image 1
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