NiMoO4/Reduced graphene oxide (NiMoO4/rGO) composites material was prepared by a hydrothermal method. When used as a anode material for lithium-ion batteries, the NiMoO4/rGO composites show superior rate capability and excellent cycling stability. A reversible capacity of approximately 808 mAh g–1 is retained even after 100 cycles at 100 mA g–1. It is believed that the surface modification by graphene nanosheets contribute to the improved kinetics of lithium-ion diffusion, excellent structural stability and superior electrochemical performance.

CH3NH3PbBr3 micro-polyhedrons were synthesized by using a two-step solution precipitation method and demonstrated single mode lasing ability.

LiNi 1/3 Co 1/3 Mn 1/3 O 2 /C composite material was prepared by a rheological phase reaction method and successive annealing procedure. In the synthesis procedure, citric acid was selected as carbon source. The electrochemical tests showed that the LiNi 1/3 Co 1/3 Mn 1/3 O 2 /C could greatly improve the discharge capacity, rate capability and cycling stability due to the improved electric conductivity. The LiNi 1/3 Co 1/3 Mn 1/3 O 2 /C shows good electrochemical performance (the discharge capacity of 175 mAh g-1 at 50 mA/g, after 50 cycles). These results indicate that the samples could be a promising cathode material for lithium ion batteries.

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The SnO2/C nanocomposites were prepared through a facile approach combining sol-gel synthesis with thermal reduction. The XRD, TG, (HR-) TEM, and electrochemical performance tests were used to study the relevance between the physical character and electrochemical properties of the electrode material. As the anode material, the results show that the SnO2/C nanocomposites delivered excellent lithium storage properties (539 mAh g–1 of 100th), compared with the bare SnO2 nanoparticles. It is demonstrated that the preparation of SnO2/C nanocomposites structured can effectively alleviate the particle pulverization caused by volume expansion, effectively shorten the diffusion distance of lithium ions, prevents the aggregation of SnO2 with the carbon layer, and improve the cycle stability of the electrode. Meanwhile, the incorporation of the SnO2 particles suppressed the stack of carbon layer.