Facile synthesis of well dispersed Pd nanoparticles on reduced graphene oxide for electrocatalytic oxidation of formic acid Original Research Article International Journal of Hydrogen Energy, Available online 18 May 2017, Pages Rahul Krishna, Diana M. Fernandes, Adriana Marinoiu, João Ventura, Cristina Freire, Elby Titus
Graphical abstractIn present study, we report a facile synthesis of crystalline, small size Pd nanoparticles (NPs) on reduced graphene oxide (RGO) abbreviated as Pd/RGO for electrocatalytic oxidation of formic acid (FA). Here, first graphene oxide (GO) was reduced by the green method using l-ascorbic acid and citric acid and further Pd NPs were decorated on RGO by a facile method without using any reducing agents. The electrocatalytic behavior of Pd/RGO nanocomposite was tested by using of cyclic voltammetric (CV) technique for electro-oxidation of FA in mixed solution of 0.5 M HCOOH + 0.5H2SO4 at RT. Results shows that the higher catalytic activity of Pd/RGO nanocomposite compare to Pd NPs.Image 1
| Reduced Graphene Oxide-wrapped Pyrite as Anode Materials for Li-ion Batteries with Enhanced Long-term performance under Harsh Operational Environments Original Research Article Chemical Engineering Journal, Available online 17 May 2017, Pages Yao Du, Songping Wu, Mingbao Huang, Xiaodong Tian
Graphical abstractCauliflower-like FeS2 microspheres tightly wrapped by reduced graphene oxide (FeS2@rGO) have been synthesized by a facile and eco-friendly solution reaction route. Self-assembled mesostructured FeS2 microspheres @rGO delivered excellent cycle stability, i.e. a remarkable reversible capacity of 1720 mAh g-1 at a current density of 0.2 A g-1 after 700 cycles at ambient temperature and an outstanding reversible capacity of 340 mAh g-1 at a current density of 5.0 A g-1 after 800 cycles as operated at an extreme temperature of 85°C. All of these characteristics make FeS2 microspheres@rGO promising anode materials for LIBs with ultra-long lifetimes and large energy density.
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