A5079821348- Catalytic Processes in Materials Science
- Zeolite Catalysis and Synthesis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Catalysts for Methane Reforming
- Catalysis for Biomass Conversion
- Metal-Organic Frameworks: Synthesis and Applications
- Carbon dioxide utilization in catalysis
- Nanomaterials for catalytic reactions
- Polyoxometalates: Synthesis and Applications
- Chemical Synthesis and Characterization
- Electrocatalysts for Energy Conversion
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Carbon Dioxide Capture Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Covalent Organic Framework Applications
- Biofuel production and bioconversion
- CO2 Reduction Techniques and Catalysts
- Membrane Separation and Gas Transport
- Asymmetric Hydrogenation and Catalysis
- Advanced battery technologies research
Institute of Coal Chemistry
2016-2025
Chinese Academy of Sciences
2016-2025
State Key Laboratory of Coal Conversion
2024-2025
Taixing People's Hospital
2024
Changzhou Academy of Intelli-Ag Equipment (China)
2024
Dalian National Laboratory for Clean Energy
2018-2024
Fujian Institute of Research on the Structure of Matter
2023
National Laboratory for Superconductivity
2021
Institute of Physics
2021
Shanxi University of Traditional Chinese Medicine
2020
Nitrogen-containing porous carbon materials are ubiquitous with a wide range of technologically important applications, including separation science, heterogeneous catalyst supports, water purification, electrochemistry, as well the developing areas energy generation and storage applications. To date, variety approaches has been developed applied to introduce nitrogen into matrix. It is necessary design control hierarchical structure surface chemical groups nitrogen-containing carbons for...
As the conversion of methanol to olefins (MTO) over a zeolite catalyst is conducted on acid sites derived from framework aluminum (AlF), it possible enhance catalytic performance by altering siting AlF if one knows behavior specified located at certain sites. In this work, two series H-ZSM-5 zeolites, viz., S-HZ-m and T-HZ-m, were synthesized with silica sol tetraethyl orthosilicate, respectively, as silicon source. Both zeolites exhibit similar acidity, morphology, textual properties....
A new route to the synthesis of TS-1 has been developed using (NH4)2CO3 as a crystallization-mediating agent. In this way, framework Ti content can be significantly increased without forming extraframework species. The prepared catalyst had Si/Ti ratio low 34 in contrast 58 achieved with methods and B established by Enichem group (Clerici, M. G.; Bellussi, Romano, U. J. Catal. 1991, 129, 159) Thangaraj Sivasanker (Thangaraj, A.; Sivasanker, S. Chem. Soc., Commun. 1992, 123), respectively....
ZSM-5 and ZSM-11 zeolites are similar in their crystalline framework structure, acidity, morphology, textual properties but considerably different catalytic performance for conversion of methanol to olefins (MTO). Such an unexpected exciting finding was extensively explored by various techniques density functional theory calculations. A detailed investigation shows that it is the Al distribution causes significant difference MTO performance. In ZSM-5, atoms enriched intersection, whereas...
Abstract Identification of the active copper species, and further illustration catalytic mechanism Cu‐based catalysts is still a challenge because mobility evolution Cu 0 + species in reaction process. Thus, an unprecedentedly stable catalyst was prepared by uniformly embedding nanoparticles mesoporous silica shell allowing clarification roles dehydrogenation methanol to methyl formate combining isotope‐labeling experiment, situ spectroscopy, DFT calculations. It shown that sites promote...
Propane dehydrogenation (PDH) reaction has emerged as one of the most promising propylene production routes due to its high selectivity for and good economic benefits. However, commercial PDH processes usually rely on expensive platinum-based poisonous chromium oxide based catalysts. The exploration cost-effective ecofriendly catalysts with excellent catalytic activity, selectivity, stability is great significance yet remains challenging. Here, we discovered a new active center, i.e., an...
Postalkoxysilylation with diethoxydimethylsilane has been carried out on the zeolitic lamellar precursors of various topologies such as MWW, FER, CDO and MCM-47 aiming to construct new crystalline structures expanded pore apertures between layers. The silylation process resulting materials have investigated techniques XRD, IR, 13C 29Si MAS NMR, ICP, SEM, HRTEM, elemental analyses, N2 adsorption. In contrast forming known three-dimensional zeolite after direct calcination precursors, led...
The high-yield synthesis of the biofuel γ-valerolactone (GVL) is a challenging task, which currently stems from depolymerization cellulose to levulinic acid, followed by its hydrogenation. We have developed novel integrated process for production GVL hemicellulose without using liquid acids and external hydrogen. feed underwent hydrolysis consecutive dehydration produce furfural over ZSM-5 catalyst. Subsequently, formed with 2-propanol performed tandem conversion Au/ZrO2 catalyst combined...
Hierarchical porous activated carbon fibers with a BET surface area of 2231 m2 g−1 and pore volume 1.16 cm3 were made from polyacrylonitrile through pre-oxidation chemical activation. This type material contains large amount nitrogen-containing groups (N content > 8.1 wt%) consequently basic sites, resulting in faster adsorption rate higher capacity for CO2 than pure materials analogous structures under the same conditions. Moreover, its was more 3.3-times that N2. In particular, it showed...
The Cu/SiO<sub>2</sub> catalyst prepared by the ammonia evaporation hydrothermal method presented unprecedented stability (300 h) for glycerol hydrogenolysis to 1,2-propanediol.
As the process of methanol to hydrocarbons (MTH) is catalyzed by acid sites, regulation framework aluminum siting and distribution in a zeolite catalyst enhance its performance MTH an important challenging task. In this work, H-MCM-22 was achieved through boron incorporation; relation between catalytic investigated. The results illustrate that Brönsted sites among three types pores can be regulated adjusting content incorporated during synthesis, due competitive occupancy various T aluminum,...
Graphene supported Au–Pd bimetallic nanoparticles exhibit high catalytic activity in methanol selective oxidation, with a conversion of 90.2% and selectivity 100%, to methyl formate at 70 °C, owing the synergism Au Pd particles as well strong interaction between graphene nanoparticles.
Polymethylbenzene (polyMB) and alkene cycles are considered as two main routes forming light olefins in the process of methanol to (MTO); however, contribution that each cycle makes MTO is still unclear. In this work, density functional theory considering dispersive interactions (DFT-D) was used elucidate catalytic roles polyMB may play ethene propene from over H-ZSM-5. The results demonstrated can be produced nearly same probability via cycle, they have a very close free energy height well...
High Si/Al ratio HZSM-5 zeolite exhibits excellent catalytic performance in the synthesis of polyoxymethylene dimethyl ethers from dimethoxymethane and trioxymethylene.