The formation of stable and densely networked structures and the synergy between NRGO and alpha-MnO2 nanowires enable the alpha-MnO2/NRGO film electrode to show a large area-specific capacitance (386.8 mF cm(-2)) at 1 mA.cm(-2) current density; the capacity retention is 62.4% when the ...
摘要 Single-crystal alpha-MnO2 nanorods were grown on multi-walled carbon nanotubes (MWNTs) in H2SO4 aqueous solution. The morphology and microstructure of the composites were examined by transmission electron microscopy, high-resolution transmission electron microscopy (HRTEM), X-ray diffractometry and...
Alpha-MnO2Structure stabilityMagnetic transitionsSynthesisOctahedral molecular-sievesManganese oxideMno2GrowthBatteriesHighly crystalline one-dimensional (1D) α-MnO 2 nanostructures were achieved to have tunnel structures modified by NH 4 + species and water molecules. By tuning the diameters. 1D α-MnO 2...
Inhomogeneous structural evolution of silver-containing Alpha-MnO2 nanorods in sodium-ion batteries investigated by comparative transmission electron microscopy approachInhomogeneous structural evolution of silver-containing Alpha-MnO2 nanorods in sodium-ion batteries investigated by comparative transmission electron ...
alpha-MnO2 nanorodsBoron nitride nanoplateletsHigh specific capacitanceWe demonstrate the synthesis of a composite of alpha-MnO2 nanorods and dielectric boron nitride nanoplatelets(BNNPs) as an electrode material for application in nanoscale dielectric pseudocapacitors. The optimize nanocomposite delivers a ...
The preparation of alpha-MnO2 nanotubes (M-NT) decorated with platinum nanoparticles (Pt/M-NT) by a simple reduction and mechanical stirring method is presented in this work, which aims to design a highly active catalyst for the Li-O-2 battery. The obtained samples were characterized by XRD...
Y. Zheng, et al., Multiple branched α-MnO2 nanofibers: A two-step epitaxial growth. Journal of Crystal Growth, 2006. 286(1): p. 156-161.Y. H. Zheng, Y. Cheng, F. Bao, Y. S. Wang, and Y. Qin, Multiple branched alpha-MnO2 nanofibers: a two-step epitaxial growth, J. Cryst...
Alpha-MnO2 nanofibers/nitrogen and sulfur-co-doped reduced graphene oxide for 4.5V quasi-solid state supercapacitors using ionic liquid-based polymer electrolyteα-MnO2 nanofibersN and S co-doped reduced graphene oxideIonic liquidQuasi- solid-state supercapacitors...
Encarnacion Raymundo-PiñeroCNRS-UniversityFrançois BéguinCNRS-UniversitySpringer NetherlandsV. Khomenko, Hybrid Supercapacitors based on Α-Mno2/Carbon Nanotubes Composites, New Carbon Based Materials for Electrochemical Energy Storage Systems: Batteries, Supercapacitors and Fuel Cells 229 (2006) 33-40....
Therein, MnO2 provides an advantage owing to its selective catalytic effect, simple fabrication methods, good adsorption capacity, and relatively low cost [23], which makes it as an ideal functionalized material for catalytic decomposition of H2O2 [24]. Therefore, it could replace some biocatalysts ...