Shanghai University

About: Shanghai University is a education organization based out in Shanghai, Shanghai, China. It is known for research contribution in the topics: Microstructure & Graphene. The organization has 59583 authors who have published 56840 publications receiving 753549 citations. The organization is also known as: Shànghǎi Dàxué.

Fe2O3-Graphene Rice-on-Sheet Nanocomposite for High and Fast Lithium Ion Storage

Abstract: Graphene nanosheet (GNS)-supported Fe2O3 nanorice and nanoparticles were synthesized by a microwave-assisted hydrothermal technique. The Fe2O3-GNS rice-on-sheet composite showed a better suitabilit...

Controlled synthesis of green and blue luminescent carbon nanoparticles with high yields by the carbonization of sucrose

Abstract: High yields of hydrophilic carbon nanoparticles (CNPs) were prepared by the controlled carbonization of sucrose. Green luminescent CNPs and non-luminous CNPs were effectively separated by dialysis. After surface functionalisation with PEG2000N, the non-luminous CNPs successfully emitted a blue fluorescence.

Hierarchically porous ZnO with high sensitivity and selectivity to H2S derived from biotemplates

Abstract: Hierarchical porous wood-templated ZnO has been successfully synthesized using Lauan and Fir woods as template through a simple hydrothermal bioinspired approach. The template type and calcination temperature in the preparation process have a large effect on the morphologies and porous structures of ZnO according to FESEM, TEM, mercury porosimetry and N 2 adsorption investigations. The gas sensing performances of wood-templated and non-templated ZnO were investigated using H 2 , CO, H 2 S, NH 3 , Formaldehyde, Methanol, Ethanol, Acetone, and Isobutene. The article studies the effects of wood template, calcination temperature, and working temperature of gas flow on the gas sensitivity and selectivity in detail. It is revealed that wood-templated ZnO has excellent sensitivity and selectivity to H 2 S due to inheritance of wood's hierarchical porous structure. The sensing response to H 2 S of Fir-templated ZnO is about 5.1 times higher than that of non-templated ZnO. Fir-templated ZnO calcined at 600 °C, has the best sensing properties including the highest gas sensing response, the highest selectivity coefficients of H 2 S and the shortest response and recovery time. The selective sensing mechanism has been discussed from some key aspects, such as gas properties, gas–solid reactions, grain size and hierarchical porous microstructures.