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Temperature-programmed-reduction studies of nickel oxide/alumina catalysts: effects of the preparation method
Abstract Two series of NiO Al 2 O 3 catalysts with various metal loadings were prepared by incipientwetness impregnation and coprecipitation methods. The reducibilities of NiO over these catalystsExpand
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Structural characteristics and redox behaviors of Ce1-xCuxOy solid solutions
Nanosized Ce1-xCuxOy materials were prepared by complexation−combustion method. The structural characteristics and redox behaviors were investigated using X-ray diffraction (XRD), temperatureExpand
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The mechanism of reduction of iron oxide by hydrogen
Abstract Precipitated iron oxide samples were characterized using temperature-programmed reduction. H 2 was used as the reduction agents. The two-stage reduction was observed: Fe 2 O 3 was reduced toExpand
  • 224
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In situ growth of NiCo2S4@Ni3V2O8 on Ni foam as a binder-free electrode for asymmetric supercapacitors
A hierarchical NiCo2S4@Ni3V2O8 core/shell hybrid was in situ grown on nickel foam through a facile hydrothermal process combined with a simple co-precipitation method. Further characterization showsExpand
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Chemical signed graph theory
Chemical signed graph theory is presented. Each topological orbital of an N-vertex molecular graph is represented by a vertex-signed graph (VSG) that is generated by assigning a sign, either plus orExpand
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Electronic properties of TiO2 doped with Sc, Y, La, Zr, Hf, V, Nb and Ta
Abstract The segregation of dopant inevitably affects the thermodynamic stability and electronic properties of transition metal (TM) doped TiO 2 which were studied using first principlesExpand
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Effect of chromium promoter on copper catalysts in ethanol dehydrogenation
A series of chromium-promoted copper catalysts with various Cr to Cu molar ratios were prepared with the co-precipitation method. The promotional effects of chromium on copper catalysts were examinedExpand
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Characterization of unsupported copper—chromium catalysts for ethanol dehydrogenation
Abstract The dehydrogenation of ethanol to acetaldehyde has been studied over a series of unsupported copper-chromium catalysts. The results indicate that the sintering occurs in both reduction andExpand
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High rate capability of mesoporous NiWO4–CoWO4 nanocomposite as a positive material for hybrid supercapacitor
  • Yidan Wang, C. Shen, +7 authors Y. Gong
  • Materials Science
  • 1 October 2016
Abstract Nickel-based materials are promising positive electrode for hybrid supercapacitor due to their high theoretical specific capacity. The main obstacle preventing their practical applicationsExpand
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