Synthesis and electrochemical studies of a layered spheric TiO2 through low temperature solvothermal method

2009 ◽  
Vol 54 (16) ◽  
pp. 4079-4083 ◽  
Author(s):  
Yuxi Zhang ◽  
Honghe Zheng ◽  
Gao Liu ◽  
Vince Battaglia
2018 ◽  
Vol 22 (1) ◽  
Author(s):  
Wélique Silva Fagundes ◽  
Farlon Felipe Silva Xavier ◽  
Laiane Kalita Santana ◽  
Matheus Ezequiel Azevedo ◽  
Sheila Cristina Canobre ◽  
...  

2015 ◽  
Vol 3 (3) ◽  
pp. 1317-1324 ◽  
Author(s):  
Yanrong Wang ◽  
Bin Liu ◽  
Songhua Xiao ◽  
Han Li ◽  
Lingling Wang ◽  
...  

A catalytically activated hydrogen sensor is obtained based on Pd decorated WO3 nanoplates constructed by a solvothermal method.


2020 ◽  
Vol 155 ◽  
pp. 106416 ◽  
Author(s):  
Wei-min Zeng ◽  
Yu-ping Peng ◽  
Tang-jian Peng ◽  
Mei-hua Nan ◽  
Miao Chen ◽  
...  

2001 ◽  
Vol 676 ◽  
Author(s):  
Jianjun Wang ◽  
Luke Grocholl ◽  
Edward G. Gillan

ABSTRACTWe report a straightforward, non-aqueous solvothermal method for the production of nanoscale gallium nitride structures. Nanoparticles with spherical and rod-like morphologies are produced via in situ gallium azide precursor synthesis and decomposition in superheated toluene or THF. The solution reaction between gallium chloride and sodium azide produces an insoluble azide precursor that is then solvothermally decomposed to GaN at temperatures below 260 °C. The resulting products are poorly crystalline but thermally stable and crystallize to hexagonal GaN upon annealing at 750 °C. Product morphologies include spherical particles (ca. 50 nm) and nanorods. Upon annealing, the nanoparticles coalesce into larger organized crystalline structures with hexagonal facets.


2013 ◽  
Vol 457 (1) ◽  
pp. 30-38 ◽  
Author(s):  
P. Pookmanee ◽  
I. Phiwchai ◽  
S. Yoriya ◽  
R. Puntharod ◽  
S. Sangsrichan ◽  
...  

2012 ◽  
Vol 488-489 ◽  
pp. 98-102
Author(s):  
Tanagorn Kwamman ◽  
Siwaporn Meejoo Smith

A low temperature solvothermal method was employed to synthesize nitrogen-fluorine doped TiO2 materials (N/F -TiO2) at various mole ratio of Ti:F; 10:1, 10:0.3 and 10:0.1, for photocatalytic applications. Doping fluorine and nitrogen in the TiO2 structure extend the spectra response of the materials toward a visible region resulting in the high efficiency to oxidize methyl orange (MO) under UV-Vis irradiation. The microstructure and photocatalytic activity of the materials appeared to depend on titanium precursors, titanium isopropoxide (TTIP) or tetrabutyl orthotitanate (TBOT), and the concentration of dopant (NH4F). The highest MO decolorization efficiency under UV-Vis irradiation for 30 minutes is about 86 % by using N-F-TiO2 (TTIP precursor) with Ti: F of 10: 3 as catalyst. The decolorization efficiencies of MO over N-F-TiO2 materials (TTIP precursor) are twice higher than that of the undoped catalyst.


2012 ◽  
Vol 576 ◽  
pp. 345-348 ◽  
Author(s):  
Mohd Nor Asiah ◽  
M.F. Achoi ◽  
Saifollah Abdullah ◽  
M. Rusop

In this paper, we have successfully synthesized TiO2 microsperes by solvothermal method using titanium (IV) isopropoxide as titanium source and ethanol as a solvent. The solution was thermally treated at relatively low temperature of 150 °C for 3 hours. The as-prepared and annealed of TiO2 microsphere were characterized using FESEM, XRD and Raman spectroscopy. The diameter of the microspheres was 1-6 µm. The X-ray diffraction and Raman spectroscopy studies show that the microspheres has anatase phase.


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