A Facile Non-hydrothermal Fabrication of Uniform α-MoO3 Nanowires in High Yield

Abstract

Uniform α-MoO3 nanowires with the diameter of 60–100 nm and the length of 10–40 μm were fabricated in high yield through a facile non-hydrothermal method. The fabrication process involved acidifying an ethylenediamine solution of molybdenum acid and subsequent calcinating treatment without any hydrothermal procedures. Ethylenediamine was found to play a crucial role for the formation of α-MoO3 nanowires under the present conditions. Thus-prepared α-MoO3 nanowires as supercapacitors exhibited much larger capacitance and better cyclicity than the conventional particulate counterpart.

Direct conversion of multilayer molybdenum trioxide to nanorods as multifunctional electrodes in lithium-ion batteries

“…Whereas for nanorods the stretching mode adjoined at 819 cm À1 with blue shi; and signals in the range 100-500 cm À1 resulting from various other vibrational modes (e.g., fracturing, twisting, bending). 27,28 In addition, the peaks related to the nanorods were broadened and had intensities much lower than those of the bulk material, similar to the effect in the XRD patterns. Such behavior of broadening and blue shi might be due to the large lattice expansion and structural distortion related to interlayer intercalation.…”

Silica-coated iron nanocubes: Preparation, characterization and application in microwave absorption

“…Iron powders were prepared by the method previously reported by our group [22]. In a typical experiment, 8 mmol ferrous sulfate heptahydrate were dissolved in 20 ml ethylenediamine.…”

Single crystalline flowerlike α-MoO3 nanorods and their application as anode material for lithium-ion batteries

“…Mai et al assembled a single nanowire device to measure the electrical transport through a single MoO 3 nanowire before and after lithiation, and the conductivity was calculated to increase from 10 À4 S cm À1 before lithiation to 10 À2 S cm À1 after lithiation, but at the expense of fracture and break in MoO 3 nanowires [35]. Up to now, a-MoO 3 has been engineered into different morphologies, including nanowires [36], nanobelts [37,38], micro/ nanorods [19,39], nanoparticles [14], and thin films [13,40]. Among them, rod or belt-like a-MoO 3 has attracted extra interests due to its single crystalline nature, which serves well as representation of the layered structure and anisotropic growth.…”