Graphene-decorated carbon-coated LiFePO4 nanospheres as a high-performance cathode material for lithium-ion batteries Original Research Article
Carbon, Available online 4 November 2017, Pages
Xufeng Wang, Zhijun Feng, Juntong Huang, Wen Deng, Xibao Li, Huasen Zhang, Zhenhai Wen
Graphical abstractGraphene decorating carbon-coated LiFePO4 nanospheres are prepared, using a ball milling-assisted rheological phase method combined with a solid-state reaction. Such nanohybrids constitute a unique 3D "sheets-in-pellets" and "pellets-on-sheets" conducting network structure that can effectively bridge separated LFP nanoparticles each other and promote the electronic and ionic transport to improve the rate and cyclic performance of olivine-type lithium iron phosphate.Image 1
 | A review on manifold synthetic and reprocessing methods of 3D porous graphene-based architecture for Li-ion anode Review Article
Chemical Engineering Journal, Available online 4 November 2017, Pages
Wanwei Jiang, Haibo Wang, Zhiwei Xu, Nan Li, Cheng Chen, Cuiyu Li, Jing Li, Hanming Lv, Liyun Kuang, Xu Tian
| Synthesis and electrochemical analysis of electrode prepared from zeolitic imidazolate framework (ZIF)-67/graphene composite for lithium sulfur cells Original Research Article
Electrochimica Acta, Available online 4 November 2017, Pages
Jin Young Hong, Yongju Jung, Dae-Won Park, Seok Kim
Graphical abstractZIF-67/graphene composites for lithium sulfur electrode were synthesized by a solvothermal reaction with different concentration of graphene oxide. In the prepared composites, polyhedral ZIF particles were dispersed on graphene sheets uniformly and nano-pores can be observed. ZG300-sulfur which was added with 3 mg mL−1 of graphene oxide showed the highest initial specific capacity (1459 mAh g−1) and retained the capacity of 637 mAh g−1 after 100 cycles. Even, at higher current density, ZG300 showed superior rate capability and retained the capacity of 739 mAh g−1 at returning 100 mA g−1.Image 1
 | One-step radiolytic synthesis of heteroatom (N and S) co-doped graphene for supercapacitors Original Research Article
Electrochimica Acta, Available online 4 November 2017, Pages
Lingli Cheng, Yiyang Hu, Dandan Qiao, Ying Zhu, Hao Wang, Zheng Jiao
Graphical abstractImage 1
 This novel synthesis process relies on the interaction of high energy EB rays from an electron accelerator with the water in the aqueous solutions containing l-cysteine as the precursor of nitrogen and sulfur, leading to the generation of highly reducing species that not only reduce the graphene oxide to graphene, but also dope nitrogen and sulfur into graphene instead of oxygen. The range of nitrogen and sulfur doping content could achieve 4.88–10.88 at% and 2.08–4.59 at%, respectively. The sample prepared under the irradiation dose of 210 kGy (NSG-210) exhibits the highest specific capacitance and stable cycling performance with a capacitance retention of 83% after 25,000 cycles at a current density of 10 A g−1. | |
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