A5101955740- Radioactive element chemistry and processing
- Nuclear Materials and Properties
- Electrochemical Analysis and Applications
- Analytical chemistry methods development
- Analytical Chemistry and Chromatography
- Chemical Synthesis and Characterization
- Extraction and Separation Processes
- Nuclear materials and radiation effects
- Catalytic Processes in Materials Science
- Ammonia Synthesis and Nitrogen Reduction
- Microfluidic and Capillary Electrophoresis Applications
- Chemical Reaction Mechanisms
- Advanced Polymer Synthesis and Characterization
- Electrocatalysts for Energy Conversion
- Coconut Research and Applications
- Nanomaterials for catalytic reactions
- Hydrogen Storage and Materials
- Ionic liquids properties and applications
- Chemical and Physical Properties in Aqueous Solutions
- Chromatography in Natural Products
- Gold and Silver Nanoparticles Synthesis and Applications
- Civil and Geotechnical Engineering Research
- Traditional Chinese Medicine Analysis
- Water Quality Monitoring and Analysis
- Radioactive contamination and transfer
China Institute of Atomic Energy
2011-2025
Donghua University
2021
Université de Montréal
2021
Shandong University
2015
ZheJiang Academy of Agricultural Sciences
2011-2015
Université de Sherbrooke
2014
Harbin Normal University
2014
Peking University
2011
State Key Laboratory of Rare Earth Materials Chemistry and Application
2011
Zhengzhou University
2011
Three amphiphilic diblock copolymers, representative of three types block copolymer (BCP) design, were synthesized using reversible addition-fragmentation chain-transfer (RAFT) polymerization. All them have a same uncharged random commercially available acrylamide and acrylonitrile, P(AAm-co-AN), exhibit composition-tunable upper critical solution temperature (UCST). We show that by coupling common P(AAm-co-AN) with either hydrophobic polystyrene (PS) or hydrophilic poly(dimethylacrylamide)...
Transition metal (Fe, Co, and Ni) nanoparticles dispersed in an alumina matrix were synthesized by a facile co-precipitation method showed excellent catalytic performance for NH<sub>3</sub> decomposition.
Abstract The enantioselective degradation of tebuconazole has been investigated to elucidate the behaviors in agricultural soils, cabbage, and cucumber fruit. Rac ‐tebuconazole was fortified into three types soils sprayed foliage cabbage cucumber, respectively. kinetics, enantiomer fraction enantiomeric selectivity were determined by reverse‐phase high‐performance liquid chromatography (HPLC) chromatography‐mass spectrometry/mass spectrometry (LC‐MS/MS) on a Lux amylose‐2 chiral column....
Abstract The practical synthesis of polar‐functionalized polyolefins using transition‐metal‐catalyzed copolymerization olefins with polar monomers is a challenge; the use heterogeneous catalysts little explored. Herein, we report naphthoquinone‐based nickel (Ni/SiO 2 ) and palladium (Pd/SiO through hydrogen bonding interactions ligands silica surface. Ni/SiO exhibits high activities (up to 2.65×10 6 g mol −1 h during ethylene 5‐hexene‐1‐yl‐acetate, affording high‐molecular‐weight (M n up 630...
Abstract The chemical behavior of Np is influenced by many factors, such as U(IV), hydrazine, Pu and Tc, which coexist in U/Pu separation stage PUREX process. Firstly, the reduction Np(V) to Np(IV) Tc(IV) was studied nitric acid media, rate equation could be expressed − d[Np(V)]/d t = k [Np(V)][Tc(IV)] 0.8 [HNO 3 ] 1.2 , 28.5 ± 0.9 (L/mol) 2 /min at 25 ℃, activation energy E a 70.0 kJ/mol. Thereafter, investigated aqueous solution containing Tc(VII), U(IV) N H 4 . reduced quickly, Tc(VII)...
The gas phase pyrolysis of trichlorfon was investigated by the on-line chromatography – mass spectrometry (GC-MS) and theoretical calculations. Two reaction channels were proposed in pyrolytic reaction, analyzing detected products total ion chromatography, including 2,2,2-trichloroacetaldehyde, dimethyl phosphite, dichlorvos. Theoretical calculations showed that there is an intramolecular hydrogen bond between hydroxyl group phosphate O atom trichlorfon, through which H can be easily...
Abstract A study of the electrochemical behaviors N , -dimethylhydroxylamine (DMHAN) and monomethyl hydrazine (MMH) in nitric acid solution on Pt electrodes were carried out by cyclic voltammetry (CV) linear sweep (LSV) methods. The diffusion coefficients DMHAN MMH obtained CV. values are found to be 0.53 × 10 6 cm 2 /s D (DMHAN ) 0.88 5 (MMH . equilibrium potentials (+0.47 V vs. SCE for +0.31 vs MMH) also measured using Tafel curves. Various valence states Pu Np HNO 3 containing...
The catalytic reaction of Tc plays a significant role in the chemical separation process during spent fuel reprocessing. However, few studies have been conducted on mechanism between and hydrazine. Moreover, instability Tc(V) Tc(VI) makes their measurement difficult, rendering many aspects unclear. This study investigates hydrazine nitric acid solution. To this end, we obtained kinetic laws under various conditions acidity, concentration, concentration by monitoring concentrations Tc(VII)...
Various electrochemical tests were carried out to elucidate the electrolytic oxidation mechanism of oxalic acid on a boron-doped diamond electrode in nitric environment. These included cyclic voltammetry, AC impedance, constant current electrolysis, and electron paramagnetic resonance spectroscopy. The impact potential, density, concentration, plate spacing was investigated. In electrolysis mechanism, indirect of· •OH plays major role direct at minor role. Excessive concentration will reduce...
We propose a method to extract Sr-90 from high-level liquid waste (HLLW) using N,N,N',N'-tetraoctyl as the extractant and tri-n-butyl phosphate phase modifier. The process was tested with real HLLW recovery percentage of 99.91% Sr-90. results show that proposed for Sr extraction is efficient in treatment commercial separation
The synthesis of platinum nanoparticles by reduction H2PtCl6 with ascorbic acid has been studied. By high-resolution electron microscope and XRD analyses, the resultant have found to be pure fcc structure. Their sizes were observed increase increases chemical reductive 24h. Then, directly attached Ti plates(Pt nanoparticles/Ti) successfully fabricated. In this method, could grown on surface via one-step immersion into growth solution containing PtCl62- acid. spherical having an agglomerated...