scholarly journals Research on the effects of hydrothermal synthesis conditions on the crystal habit of MIL-121

2020 ◽  
Vol 7 (11) ◽  
pp. 201212
Author(s):  
Fei Wang ◽  
Liang Zhu ◽  
Qingyan Wei ◽  
Yanfei Wang
Keyword(s):  
Hydrothermal Synthesis ◽  
Low Temperature ◽  
Aspect Ratio ◽  
Sodium Hydroxide ◽  
Lithium Chloride ◽  
Synthesis Temperature ◽  
Crystal Habit ◽  
Synthesis Conditions ◽  
Adsorption Performance ◽  
Synthetic Temperature

The investigation of the influence of hydrothermal synthesis conditions such as synthetic temperature, the amount of solvent, addition of additives including sodium hydroxide, lithium chloride and 2-methylimidazole on the morphology and size of MIL-121 was carried out. The experimental results indicated the significant impact of hydrothermal synthesis conditions on the morphologies and sizes of MIL-121 crystals. The synthesis temperature has little effect on the morphology, which is mainly reflected in the change of the aspect ratio, but the effect on the size is significant under low-temperature conditions. Additives have an important influence on the morphology and size of MIL-121. Our study provides a potential for the improvement of MIL-121 adsorption performance.

One-Pot Synthesis of High Aspect Ratio Copper Nanowires in Aqueous Solution

2015 ◽  
Vol 1119 ◽  
pp. 34-37 ◽  
Author(s):  
Michael Tan ◽  
Mary Donnabelle Balela
Keyword(s):  
Aqueous Solution ◽  
Low Temperature ◽  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Synthesis Temperature ◽  
Copper Nanowires ◽  
One Pot ◽  
Cu Nanowires ◽  
Nanoparticle Growth ◽  
Low Temperature Process

We report a one-pot, low temperature process for the synthesis of high-aspect ratio copper nanowires in aqueous solution for 1 hr. Ethylene diamine (EDA) was utilized to promote anisotropic reduction of Cu (II) by hydrazine. Cu nanowires with mean diameters around 90 nm and lengths exceeding 50 μm were synthesized using 180 mM EDA at 60°C, giving an effective aspect ratio of about 450. Without EDA, nanoparticle growth is observed. The synthesis temperature was also significant in limiting nanoparticle formation. Decreasing the temperature resulted to 1D growth and fewer nanoparticles.

Preparation and Magnetic Property of Bi2Fe4O9 Nanoparticles by Hydrothermal Method

2008 ◽  
Vol 368-372 ◽  
pp. 112-114 ◽  
Author(s):  
Hong Yan Miao ◽  
Zhi Wei Yu ◽  
Guo Qiang Tan
Keyword(s):  
Magnetic Property ◽  
Hydrothermal Synthesis ◽  
Low Temperature ◽  
Sodium Hydroxide ◽  
Room Temperature ◽  
Magnetic Measurements ◽  
Synthesis Process ◽  
Sem Images ◽  
One Step ◽  
Nitrate Nonahydrate

Bi2Fe4O9 nanoparticles were prepared at low temperature via a facile, one-step hydrothermal synthesis process using iron(III) nitrate nonahydrate (Fe(NO3)3•9H2O) and bismuth nitrate pentahydrate (Bi(NO3)3•5H2O) as starting materials and sodium hydroxide (NaOH) as precipitant and mineralizer. XRD results indicated that the as-prepared nanoparticles are pure orthorhombic Bi2Fe4O9. SEM images revealed that the as-prepared Bi2Fe4O9 nanoparticles have a sheet-like morphology. They are paramagnetic at room temperature demonstrated by the magnetic measurements.

Preparation of SiO2@ZIF-67/CNTs and research on its adsorption performance at low-temperature

2020 ◽  
Vol 603 ◽  
pp. 125205 ◽  
Author(s):  
Hongmei Sun ◽  
Chenggong Ju ◽  
Yiwei Zhao ◽  
Chenyang Wang ◽  
Xiao Peng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Adsorption Performance

Hydrothermal synthesis and ionic conductivity of CdF2 and low-temperature modifications of PbF2 and PbSnF4

2002 ◽  
Vol 47 (4) ◽  
pp. 695-700 ◽  
Author(s):  
O. K. Nikol’skaya ◽  
L. N. Demianets ◽  
N. I. Sorokin
Keyword(s):  
Hydrothermal Synthesis ◽  
Ionic Conductivity ◽  
Low Temperature

ChemInform Abstract: Low-Temperature Hydrothermal Synthesis of Yttrium-Doped Zirconia Powders.

ChemInform ◽  
2010 ◽  
Vol 30 (32) ◽  
pp. no-no
Author(s):  
Takayuki Tsukada ◽  
Sridhar Venigalla ◽  
Augusto A. Morrone ◽  
James H. Adair
Keyword(s):  
Hydrothermal Synthesis ◽  
Low Temperature ◽  
Zirconia Powders

scholarly journals Low temperature hydrothermal synthesis of SrTiO3 nanoparticles without alkali and their effective photocatalytic activity

2016 ◽  
Vol 5 (4) ◽  
pp. 298-307 ◽  
Author(s):  
Hongfang Shen ◽  
Youjun Lu ◽  
Yanmin Wang ◽  
Zhidong Pan ◽  
Guozhong Cao ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Low Temperature
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