Rapid synthesis of nanoparticles of hexagonal type In2O3 and spherical type Tl2O3 by microwave irradiation

Patra, Chitta Ranjan; Gedanken, Aharon

doi:10.1039/b400206g

Cited by 47 publications

(21 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Meanwhile, the weak absorption associating with hydroxide phase was still distinguishable in the case of In 2 O 3 films annealed at 300 and 400 8C but not in 600 8C-annealed films, which corroborates the report on the thermogravimetric analysis of In(OH) 3 nanoparticles, in which case the complete decomposition of In(OH) 3 to In 2 O 3 happened at 500 8C. [17] These results are also in accordance with the studies mentioned in [22] that the incorporation of Sn helps the hydroxide-to-oxide transformation at lower temperatures.…”

Section: Optical Propertiessupporting

confidence: 78%

“…It also shows superior properties such as catalysis, [14] photocatalysis [15] and so on. To a great extent, the interest arises from the fact that In(OH) 3 can be readily converted to In 2 O 3 under mild heating (>200 8C) [16] or microwave radiation [17] without changing the morphology. It thus becomes an ideal intermediate to synthesize In 2 O 3 -based materials including ITO.…”

Section: Full Papermentioning

confidence: 99%

See 1 more Smart Citation

Aqueous Deposition of Ultraviolet Luminescent Columnar Tin‐Doped Indium Hydroxide Films

Qiu

Bellina

Jeurgens³

et al. 2008

Adv Funct Materials

View full text Add to dashboard Cite

Indium tin oxide (ITO) has attracted intense interest as the most important transparent conducting oxide (TCO) that sees wide use in many opto‐electronic and photo‐chemical devices. The goal of this study is to explore the possibility of depositing ITO thin films using a bioinspired aqueous deposition route as an alternative. On the surface of sulfonated‐self assembled monolayers, Sn‐doped indium hydroxide films are obtained via a hydrogen peroxide‐assisted method. As a result, the as‐deposited indium tin hydroxide films possess a single hexagonal phase of In(OH)3· xH2O (0 ≤ x ≤ 1) with Sn doping percentage of (1.7 ± 0.2) at % and a column‐like hierachical microstructure. Structural, compositional and property studies, including electron microscopy, X‐ray diffraction, photoelectron spectroscopy, optical transmittance, photoluminescence and four‐probe conductivity measurements, are conducted. The possible mechanism based on oriented attachment is discussed for the film growth. Strong room temperature photoluminescence within the near UV range is observed in the case of Sn‐doped, but not in the one of the pure In(OH)3· xH2O films. Annealing of the indium tin hydroxide films above 200 °C gives nanocrystalline Sn:In2O3 films with higher UV and visible transparency and electrical conductivity compared with those of pure In2O3 films. The influence of annealing atmosphere is investigated.

show abstract

Section: Optical Propertiessupporting

confidence: 78%

Section: Full Papermentioning

confidence: 99%

Aqueous Deposition of Ultraviolet Luminescent Columnar Tin‐Doped Indium Hydroxide Films

Qiu

Bellina

Jeurgens³

et al. 2008

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…The color of the solution changed in to brown color precipitate. This precipitate was placed in microwave irradiation (Domestic microwave oven, LG) for refluxing with power of 20 W, the ON/OFF cycle duration as 15 s/15 s, with the total reaction time of 5 min [37,38]. The ON/OFF cycle was used to control the overheating.…”

Section: Experimental Methods and Materialsmentioning

confidence: 99%

Electrochemical properties of microwave-assisted reflux-synthesized Mn3O4 nanoparticles in different electrolytes for supercapacitor applications

2012

View full text Add to dashboard Cite

The nanosized Mn 3 O 4 particles were prepared by microwave-assisted reflux synthesis method. The prepared sample was characterized using various techniques such as X-ray diffraction (XRD), Fourier transform-infrared spectroscopy (FT-IR), Raman analysis, and transmission electron microscopy (TEM). Electrochemical properties of Mn 3 O 4 nanoparticles were investigated using cyclic voltammogram (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge analysis in different electrolytes such as 1 M KCl, 1 M Na 2 SO 4 , 1 M NaNO 3 , and 6 M KOH electrolytes. XRD pattern reveals the formation of single-phase Mn 3 O 4 nanoparticles. The FT-IR and Raman analysis also assert the formation of Mn 3 O 4 nanoparticles. The TEM image shows the spherical shape particles with less than 50 nm sizes. Among all the electrolytes, the Mn 3 O 4 nanoparticles possess maximum specific capacitance of 94 F g -1 in 6 M KOH electrolyte calculated from CV. The order of capacitance obtained by various electrolytes is 6 M KOH [ 1 M KCl [ 1 M NaNO 3 [ 1 M Na 2 SO 4 . The EIS and galvanostatic charge-discharge results further substantiate with the CV results. The cycling stability of Mn 3 O 4 electrode reveals that the prepared Mn 3 O 4 nanoparticles are a suitable electrode material for supercapacitor application.

show abstract

“…A representative HRTEM image (Fig. 10b) of a single spherical particle of as-synthesized Tl 2 O 3 shows the lattice planes with a clearly resolved interplanar distance of d 222 = 0.31 nm, compared with a theoretical interplanar spacing of 0.3042 nm [61].…”

Section: Microwave Irradiationmentioning

confidence: 98%

Various Methods for Synthesis of Bulk and Nano Thallium(III) Oxide

Moeinian

Akhbari

2015

J Inorg Organomet Polym

View full text Add to dashboard Cite

Thallium(III) oxide, a degenerate n-type semiconductor, is a highly insoluble thermally stable thallium source suitable for glass, optic and ceramic applications. Although thallium oxide is an important metal oxide, its synthesis has only been sporadically studied. This review gives an overview of all reported synthetic routes for the preparation of both bulk and nanostructured thallium(III) oxide. These methods include electrochemical methods, thermal method, chemical vapor deposition (CVD), microwave irradiation, sol-gel method and one recently chemical route using potassium superoxide. In electrochemical methods, both bulk and nanostructures of thallium(III) oxide can be prepared and the amount of the deposited material, thickness of the layer or wires length depends on the deposition time matrix structure. Thermal methods are simple and effective techniques which include thermal decomposition and calcination of various precursors. By CVD and microwave irradiation we be able to synthesis bulk and nanostructures of thallium(III) oxide, respectively. A one-step, room temperature, solution synthesis of thallium(III) oxide nanoparticles with a size of about 10 nm is reported by using potassium superoxide.

show abstract

Rapid synthesis of nanoparticles of hexagonal type In2O3 and spherical type Tl2O3 by microwave irradiation

Cited by 47 publications

References 25 publications

Aqueous Deposition of Ultraviolet Luminescent Columnar Tin‐Doped Indium Hydroxide Films

Aqueous Deposition of Ultraviolet Luminescent Columnar Tin‐Doped Indium Hydroxide Films

Electrochemical properties of microwave-assisted reflux-synthesized Mn3O4 nanoparticles in different electrolytes for supercapacitor applications

Various Methods for Synthesis of Bulk and Nano Thallium(III) Oxide

Contact Info

Product

Resources

About