The mechanism of Sol-Gel synthesis of normal spinel LiMn2O4 with chelation of citric acid

2002 ◽  
Vol 17 (4) ◽  
pp. 21-24
Author(s):  
Wu Hui ◽  
Lei Jia-heng ◽  
Chen Yong-xi ◽  
Sun Yu-bin ◽  
Yuan Qi-hua
Keyword(s):  
Citric Acid ◽  
Sol Gel ◽  
Spinel Limn2o4 ◽  
Normal Spinel ◽  
Sol Gel Synthesis

Sol-gel synthesis of normal spinel LiMn2O4 and its characteristics

2002 ◽  
Vol 17 (3) ◽  
pp. 1-4 ◽  
Author(s):  
Lei Jia-heng ◽  
Sun Yu-bin ◽  
Chen Yong-xi ◽  
Wang Jin-rong ◽  
Xue Li-hui
Keyword(s):  
Sol Gel ◽  
Spinel Limn2o4 ◽  
Normal Spinel ◽  
Sol Gel Synthesis

A two-stage citric acid–sol/gel synthesis of ZnO/SiO2 nanocomposites: study of precursors and final products

2007 ◽  
Vol 10 (1) ◽  
pp. 107-120 ◽  
Author(s):  
Roberto Anedda ◽  
Carla Cannas ◽  
Anna Musinu ◽  
Gabriella Pinna ◽  
Giorgio Piccaluga ◽  
...  
Keyword(s):  
Citric Acid ◽  
Sol Gel ◽  
Two Stage ◽  
Sio2 Nanocomposites ◽  
Sol Gel Synthesis

Citric Acid Assisted Sol-Gel Synthesis and Photoluminescence Characteristics of CaAl1.8Y0.2-xO4: xTb Nanoparticles

2019 ◽  
Vol 33 (38) ◽  
pp. 27-31
Author(s):  
Vinod B. Taxak ◽  
Satyender P. Khatkar ◽  
Sang-Do Han ◽  
Mukesh Kumar
Keyword(s):  
Citric Acid ◽  
Sol Gel ◽  
Sol Gel Synthesis

scholarly journals Sol-gel synthesis of α-Al2O3 with enhanced porosity via dicarboxylic acid templating

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Simon Carstens ◽  
Christian Splith ◽  
Dirk Enke
Keyword(s):  
Citric Acid ◽  
Thermal Analyses ◽  
Sol Gel ◽  
Dicarboxylic Acids ◽  
Precise Control ◽  
Sol Gel Process ◽  
Successful Establishment ◽  
The One ◽  
Α Al2o3 ◽  
Sol Gel Synthesis

AbstractOne of the major routes to synthesize macroporous α-Al2O3 is the sol-gel process in presence of templates. Templates include polymers as well as carboxylic acids, such as citric acid. By careful choice of the template, pore diameters can be adjusted between 110 nm and several µm. We report the successful establishment of plain short-chain dicarboxylic acids (DCA) as porogenes in the sol-gel synthesis of macroporous α-Al2O3. By this extension of the recently developed synthesis route, a very precise control of pore diameters is achieved, in addition to enhanced macropore volumes in α-Al2O3. The formation mechanism thereof is closely related to the one postulated for citric acid, as thermal analyses show. However, since branching in the DCA-linked alumina nuclei is not possible, close monomodal pore width distributions are attained, which are accompanied by enhanced pore volumes. This is a significant improvement in terms of controlled enhanced porosity in the synthesis of macroporous α-Al2O3.

scholarly journals Citric Acid-Assisted Inexpensive Semi-Wet Combustion Synthesis and Characterization of Ultrafine LiFe0.95Ti0.05PO4 and LiFePO4 Polycrystalline Materials

2020 ◽  
Author(s):  
Youngil Lee ◽  
Laxman Singh ◽  
Dev Kumar Mahato ◽  
R.N. Rai ◽  
Ashok Kumar Gupta
Keyword(s):  
Citric Acid ◽  
Low Cost ◽  
Sol Gel ◽  
Metal Nitrate ◽  
Polycrystalline Materials ◽  
Quality Life ◽  
Auto Combustion ◽  
Calcination Method ◽  
Sol Gel Synthesis ◽  
Combustion Residue

Abstract A solution based economically low cost, eco-friendly and energetically advantageous alternative route for the fabrication of ultrafine LiFe0.95Ti0.05PO4 and LiFePO4, polycrystalline material by semi-wet combustion and sol-gel synthesis is presented. The thermal analysis, crystal structure, morphology and composition of the materials were investigated using different physio-chemical characterizations. TG/DTA, X-ray diffraction, TEM, SEM, EDX, and XPS. The route required auto-combustion of an aqueous metal nitrate solutions in air with the aid of citric acid and is efficient for the fabrication of high quality, LiFe0.95Ti0.05PO4 and LiFePO4 at low temperature, in the combustion residue itself. On a micro-structural studies the grain size was seen in submicron-size that was acquired in a long-established sol-gel combustion and succeeding calcination method. Consequently, the present method reported can yield the ultrafine LiFePO4 and LiFe0.95Ti0.05PO4 at moderate temperature and is look forward to be applicable for other iso-structural polycrystalline materials.

Synthesis and Characterization of the One-dimensional Cuprate Sr2CuO3 Nanoparticles Prepared by Modified Sol-gel Method

2013 ◽  
Vol 32 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Sima Alikhanzadeh-Arani ◽  
Masoud Salavati-Niasari ◽  
Fatemeh Davar
Keyword(s):  
Citric Acid ◽  
Sol Gel ◽  
Copper Nitrate ◽  
Strontium Nitrate ◽  
Sem Images ◽  
Glycol Monobutyl Ether ◽  
Xrd Patterns ◽  
The One ◽  
Sol Gel Synthesis

AbstractA modified sol-gel synthesis route has been used to prepare the fine homogeneous powder of Sr2CuO3 ceramic using strontium nitrate, copper nitrate, diethylene glycol monobutyl ether and citric acid. XRD patterns showed that the temperature of forming Sr2CuO3 is about 900°C and single phase of Sr2CuO3 with high purity obtains at 950°C. Influence of concentration of citric acid on the structure of prepared materials was investigated by SEM images.

Sign in / Sign up

Export Citation Format

Share Document