A5006053290- Catalytic Processes in Materials Science
- Synthesis and Characterization of Pyrroles
- Catalysis and Oxidation Reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Catalysis for Biomass Conversion
- Multicomponent Synthesis of Heterocycles
- Supercapacitor Materials and Fabrication
- Nanomaterials for catalytic reactions
- Catalysis and Hydrodesulfurization Studies
- Porphyrin and Phthalocyanine Chemistry
- Microplastics and Plastic Pollution
- Dyeing and Modifying Textile Fibers
- Environmental remediation with nanomaterials
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Advancements in Battery Materials
- Peptidase Inhibition and Analysis
- Adsorption and biosorption for pollutant removal
- Oxidative Organic Chemistry Reactions
- Advanced Photocatalysis Techniques
- Aerogels and thermal insulation
- Industrial Gas Emission Control
- Mesoporous Materials and Catalysis
- Chemical Synthesis and Reactions
Shihezi University
2011-2023
Xinjiang Production and Construction Corps
2011-2023
Tianjin University
2013-2014
Several gold-based catalysts including Au, Au–La(III), Au–Co(II), and Au–Co(III) were prepared assessed for acetylene hydrochlorination, combining with characterizations of low-temperature N2 adsorption/desorption, thermogravimetric analysis, X-ray diffraction, temperature-programmed reduction, inductively coupled plasma-atomic emission spectroscopy, transmission electron microscopy, photoelectron spectroscopy. The best catalytic performance was obtained over Au1Co(III)3/SAC an conversion...
Abstract A highly active nitrogen‐doped pitch‐based spherical activated carbon catalyst (PSAC‐N) is synthesized through a nitrogen‐doping treatment and used as nonmetal for acetylene hydrochlorination. The conversion of on PSAC‐N exceeds 68 % the selectivity vinyl chloride over 99 at temperature 250 °C, an gas hourly space velocity 120 h −1 , feed volume ratio V (HCl)/ (C 2 H ) 1.15. DFT calculations performed with Gaussian 09 program package reveal that site has N‐6v (quaternary nitrogen...
Selective catalytic reduction of NOx by ammonia (NH3-SCR) was the most efficient and economic technology for De-NOx applications. Therefore, a series MnOx/vermiculite (VMT) MnOx-Fe2O3/VMT catalysts were prepared an impregnation method selective (SCR) nitrogen oxides (NOx). The provided excellent NO conversion 96.5% at 200 °C with gas hourly space velocity (GHSV) 30,000 h−1 concentration 500 ppm. X-ray photoelectron spectroscopy results indicated that Mn Fe catalyst mainly composed MnO2...
The addition of copper improved the activity and stability Zn–Cu/MCM bimetallic catalysts interacted synergistically with Zn species prevented loss during reaction.
Metal-organic frameworks (MOFs)-derived materials with a large specific surface area and rich pore structures are favorable for catalytic performance. In this work, MOFs successfully prepared. Through pyrolysis of under nitrogen gas, zinc-based catalysts different active sites acetylene acetoxylation obtained. The influence the oxygen atom, coexistence atoms on structure performance MOFs-derived was investigated. According to results, activity Zn-O-C (33%), Zn-O/N-C (27%), Zn-N-C (12%). From...
In this paper, Zn(OAc)2/AC and Zn-Co/AC catalysts were prepared applied in an acetylene acetoxylation reaction. Compared with monometallic catalyst, which is widely industry, the Zn-Co exhibited excellent catalytic performance. Transmission electron microscopy results displayed that addition of cobalt improved dispersity zinc acetate particles inhibited catalyst sintering on surface. X-ray photoelectron spectra suggested Co additive changed density probably because interaction between Zn...
The role of solvents is crucial in catalyst preparation. With regard to catalysts prepared with activated carbon (AC) as the carrier, when water used a solvent it difficult for solution infiltrate AC. Because AC comprises large number C atoms and nonpolar material, more effective adsorption substances. Since active ingredients are polar, they cannot easily In this study, dispersion component was significantly improved by optimizing solvent, particle size reduced from 33.08 nm 15.30 nm....
A new catalyst, in situ Zn(CH3COO)2-NC, is prepared by a facile generation method. With impregnation, drying, and high-temperature treatment, the precursor was obtained then activated acetic acid, generating Zn(OAc)2-iNC catalyst situ. According to X-ray diffraction, high-resolution transmission electron microscopy, thermogravimetric analysis, photoelectron spectroscopy, other characterizations, ZnO could generate Zn(CH3COO)2. In addition, Zn–N bonds were formed after Zn combined with N...
The preparation method and calcination temperature of metal-organic framework (MOFs)-derived materials are critical factors affecting catalytic performance. In this work, the conditions MOFS precursors were optimized, zinc-based catalysts with different activities (MOF5-700, MOF5-750, MOF5-800) obtained by pyrolysis under nitrogen, which then applied to an acetylene acetoxylation reaction system. According results, conversion rate acetic acid catalysis was significantly different. (MOF5-700...
Recently, carbon surface modification has drawn considerable attention because of its capability to improve catalyst performance.Activated carbons (ACs) are widely used in catalysis and adsorption their chemical stability, well-developed porous structure, large area various functional groups [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] .It is a clear fact that the activated can display acidic, basic neutral characteristics depending on presence
Core–shell catalysts with selective coatings were synthesized using an in situ generation method followed by a carbonization process. These successfully applied to acetylene acetoxylation. The results demonstrated that the core–shell-structured had excellent catalytic activity and stability shell layer thickness of 30–50 nm. They achieved initial acetic acid (CH3COOH) conversion rate up 69%, maintained above 60% after 250 h reaction. Zn loss was only 0.10% ZnO–AC@10%tea polyphenols...
Zinc acetate (Zn(OAc)2) loaded on activated carbon (AC) is the most commonly used catalyst for industrial synthesis of vinyl (VAc) using acetylene method. The aim this study to optimize Zn(OAc)2/AC by adding co-catalysts improve its activity and stability. Ternary catalysts were synthesized Co Ni (Zn-Co-Ni/AC). Due strong synergistic effect among promoter Co, Ni, active component Zn(OAc)2, resulting capable absorb more acetic acid less acetylene. stability Zn-Co-Ni/AC have been improved...