One-step synthesis of high-purity fluorous-capped inorganic nanoparticles

2010 ◽  
Vol 39 (26) ◽  
pp. 6021 ◽  
Author(s):  
Rakesh Voggu ◽  
Ajmala Shireen ◽  
C. N. R. Rao
Keyword(s):  
High Purity ◽  
Inorganic Nanoparticles ◽  
One Step

Instant 99mTc Compounds

1971 ◽  
Vol 10 (03) ◽  
pp. 245-251 ◽  
Author(s):  
P. Richards ◽  
W. C. Eckelman
Keyword(s):  
Physical Properties ◽  
High Purity ◽  
Analytical Techniques ◽  
Full Potential ◽  
Labeled Compounds ◽  
Ph Adjustment ◽  
One Step ◽  
Stannous Ion ◽  
99Mtc Radiopharmaceuticals ◽  
Potential Use

SummaryThe full potential use of technetium has not been achieved despite its ideal physical properties, dosimetry and availability because of the complex preparations required for 99mTc radiopharmaceuticals. One of the goals of our work is to develop techniques for the preparation of high-purity 99mTc compounds which can be easily prepared, ideally by adding pertechnetate to a prepared solution.The use of stannous ion as reducing agent for technetium makes it possible to obtain such one-step, high-purity products. All non-radioactive components can be premixed in a single vial before addition of the radioactive pertechnetate. No final pH adjustment, further chemical manipulation or purification is required.Procedures for two instantly labeled compounds have been developed to date: 99mTc DTPA and 99mTc HSA. The 99mTc DTPA is prepared by adding pertechnetate to a previously prepared solution of stannous ion and CaNa3 DTPA which has been stored at pH 4. The 99mTc HSA is prepared by adding pertechnetate to a solution of stannous ion and HSA. The parametric variations and analytical techniques involved in formulating these procedures are described. It appears that development of kits for other biologically interesting compounds may be possible using similar procedures.

scholarly journals A fluorine-substituted pyrrolidinium-based ionic liquid for high-voltage Li-ion batteries

2020 ◽  
Vol 56 (53) ◽  
pp. 7317-7320 ◽  
Author(s):  
Qian Liu ◽  
Chia-Wei Hsu ◽  
Trevor L. Dzwiniel ◽  
Krzysztof Z. Pupek ◽  
Zhengcheng Zhang
Keyword(s):  
Ionic Liquid ◽  
High Voltage ◽  
High Purity ◽  
Li Ion Batteries ◽  
One Step ◽  
Li Ion

Fluorinated pyrrolidinium bis(fluorosulfonyl)imides were successfully synthesized using a facile one-step reaction by reacting fluorinated pyrrolidine with CH3FSI with high purity and yield. The new IL shows good performance in Li-ion batteries.

Novel KOH electrolyte for one-step electrochemical synthesis of high purity solid K2FeO4: Comparison with NaOH

2005 ◽  
Vol 7 (6) ◽  
pp. 607-611 ◽  
Author(s):  
Weichun He ◽  
Jianming Wang ◽  
Haibo Shao ◽  
Jianqing Zhang ◽  
Chu-nan Cao
Keyword(s):  
High Purity ◽  
Electrochemical Synthesis ◽  
One Step

Sintered Reaction-Bonded Silicon Nitride by Microwave Heating

1992 ◽  
Vol 287 ◽  
Author(s):  
Terry N. Tiegs ◽  
James O. Kiggans ◽  
Kristin L. Ploetz
Keyword(s):  
Silicon Nitride ◽  
Flexural Strength ◽  
High Purity ◽  
Reaction Times ◽  
Raw Material ◽  
Firing Process ◽  
Step Process ◽  
Metal Parts ◽  
One Step ◽  
Sintered Silicon

ABSTRACTSintered silicon nitride has many desired properties, however, for most applications these materials are too expensive to compete with metal parts. Sintered reaction-bonded silicon nitride (SRBSN) is more economical, with raw material costs <27% those of comparable high-purity materials, making it competitive with metal parts. Conventional processing of SRBSN requires long nitridation times and a two-step firing process. Microwave (MW) heating reduces the reaction times and is performed in a one-step process, thereby simplifying the operation. The flexural strength of the MW-SRBSN is equivalent to the strength of some materials made from higher-cost powders. Thus, these materials may be appropriate for a number of applications.

Extraction behaviour and mechanism of Pt(iv) and Pd(ii) by liquid–liquid extraction with an ionic liquid [HBBIm]Br

2017 ◽  
Vol 46 (22) ◽  
pp. 7210-7218 ◽  
Author(s):  
Wenhui Liu ◽  
Qi Wang ◽  
Yan Zheng ◽  
Shubin Wang ◽  
Yan Yan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Purity ◽  
Liquid Extraction ◽  
Liquid Liquid Extraction ◽  
Extraction Behaviour ◽  
One Step

In this study, a method of one-step separation and recycling of high purity Pd(ii) and Pt(iv) using an ionic liquid, 1-butyl-3-benzimidazolium bromate ([HBBIm]Br), was investigated.

scholarly journals Preparing High-Purity Anhydrous ScCl3 Molten Salt Using One-Step Rapid Heating Process

2020 ◽  
Vol 10 (15) ◽  
pp. 5174
Author(s):  
Junhui Xiao ◽  
Chao Chen ◽  
Wei Ding ◽  
Yang Peng ◽  
Kai Zou ◽  
...  
Keyword(s):  
Molten Salt ◽  
High Purity ◽  
Rapid Heating ◽  
Raw Material ◽  
Hydrolysis Rate ◽  
Heating Process ◽  
Crystal Water ◽  
Argon Flow ◽  
One Step ◽  
Scandium Chloride

In this study, a one-step rapid heating novel process was used to prepare high-purity anhydrous scandium chloride molten salt with low-purity scandium oxide. High-purity anhydrous ScCl3 molten salt was used as the Sc-bearing raw material for preparing the Sc-bearing master alloy. Inert gas was used to enhance the purity of anhydrous scandium chloride and reduce the hydrolysis rate of scandium. The results show that high-purity scandium chloride (purity, 99.69%) with the scandium content of 29.61%, was obtained, and the hydrolysis rate of scandium was 1.19% under the conditions used: removing ammonium chloride; residual crystal water temperature of 400 °C; m(Sc2O3):m(NH4Cl) = 1:2.5; holding-time of 90 min; heating-rate of 12 °C/min; and argon flow of 7.5 L/min. XRD, SEM, and EPMA analyses further verified that anhydrous scandium chloride crystallization condition was relatively good and the purity of high-purity anhydrous scandium chloride approached the theory purity of anhydrous scandium chloride.

One-step rapid fabrication of high-purity onion-like carbons as efficient lubrication additives

2020 ◽  
Vol 56 (2) ◽  
pp. 1286-1297
Author(s):  
Chuang He ◽  
Honghao Yan ◽  
Xiaojie Li ◽  
Xiaohong Wang
Keyword(s):  
High Purity ◽  
Rapid Fabrication ◽  
One Step

One-Step Synthesis of Graphitic Carbon-Nitride doped with Black-Red Phosphorus as a Novel, Efficient and Free-Metal Bifunctional Catalyst and its Application for Electrochemical Overall Water Splitting

2021 ◽  
Author(s):  
Fatemeh Shiravani ◽  
Javad Tashkhourian ◽  
Behzad Haghighi
Keyword(s):  
Water Splitting ◽  
High Purity ◽  
Carbon Nitride ◽  
Sustainable Energy ◽  
Bifunctional Catalyst ◽  
Red Phosphorus ◽  
Green Approach ◽  
One Step ◽  
Free Metal ◽  
High Purity Hydrogen

Electrocatalytic water splitting has attracted widespread attention because it is the most efficient and green approach to produce high purity hydrogen as a clean and sustainable energy carrier. In this...

One-step separation of high-purity (6,5) carbon nanotubes by multicolumn gel chromatography

2011 ◽  
Vol 248 (11) ◽  
pp. 2524-2527 ◽  
Author(s):  
Huaping Liu ◽  
Takeshi Tanaka ◽  
Hiromichi Kataura
Keyword(s):  
Carbon Nanotubes ◽  
High Purity ◽  
Gel Chromatography ◽  
One Step

Preparation of High-Purity T12CanBa2Cun+1O6+2n (n=1,2) Powders from Stoichiometric Reactant Mixtures

1989 ◽  
Vol 169 ◽  
Author(s):  
Nae-Lih Wu ◽  
Yeong Der Yao
Keyword(s):  
High Purity ◽  
Single Phase ◽  
Synthesis Methods ◽  
Powder Synthesis ◽  
One Step

AbstractNew powder synthesis Methods have been developed for preparing the single-phase T12CaBa2Cu2O8 (the 2122 coapound) and T12CaBa2Cu3O10 (the 2223 coapound) powders froa stoichioaetric reactant mixtures. The 2122 coapound was prepared froa a stoichioaetric Mixture of T12O3, CuO, and CaBa2CuO4, while the 2223 coapound was prepared froa the same aixture but with additional CaO and CuO to Batch the correct (T1:Ca:Ba:Cu=2:2:2:3) stoichioaetry. The single-phase 2122 saaples with Tc above 110 K were obtained by using one-step calcination at 830°C, while the 2223 saaples with Tc ranging between 115 and 120 K were obtained by employing a first calcination at 830°C for 5 hrs and a second calcination at 870°C. Powder aelting, which is strongly associated with the conventional aethods, was significantly suppressed in the new aethods.

Sign in / Sign up

Export Citation Format

Share Document