A5040184503- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Catalysts for Methane Reforming
- Zeolite Catalysis and Synthesis
- Catalysis and Hydrodesulfurization Studies
- Nanomaterials for catalytic reactions
- Catalysis for Biomass Conversion
- Luminescence Properties of Advanced Materials
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Metal-Organic Frameworks: Synthesis and Applications
- Industrial Gas Emission Control
- Polyoxometalates: Synthesis and Applications
- Enzyme Catalysis and Immobilization
- Supercapacitor Materials and Fabrication
- Gas Sensing Nanomaterials and Sensors
- Crystallization and Solubility Studies
- Asymmetric Hydrogenation and Catalysis
- X-ray Diffraction in Crystallography
- Copper-based nanomaterials and applications
- Nanoparticle-Based Drug Delivery
- Layered Double Hydroxides Synthesis and Applications
- Chemical Synthesis and Reactions
- Oxidative Organic Chemistry Reactions
First Affiliated Hospital of Xiamen University
2024-2025
Northeast Forestry University
2022
Hubei University of Arts and Science
2021
East China University of Science and Technology
2011-2020
Shanghai Institute of Technology
2010-2020
Institute of Catalysis and Petrochemistry
2014-2018
State Council of the People's Republic of China
2017
Cardiff University
2016
SAIC-GM (China)
2014
Guangdong Ocean University
2012
Ceria nanocrystallites with different morphologies and crystal planes were hydrothermally prepared, the effects of ceria supports on physicochemical catalytic properties Pd/CeO2 for CO propane oxidation examined. The results showed that structure chemical state Pd affected by planes. species CeO2-R (rods) CeO2-C (cubes) mainly formed PdxCe1–xO2−σ solid solution −Pd2+–O2––Ce4+– linkage. In addition, PdOx nanoparticles dominated surface Pd/CeO2-O (octahedrons). For oxidation, Pd/CeO2-R...
Sm-Mn mixed oxide catalysts prepared by the coprecipitation method were developed, and their catalytic activities tested for selective reduction (SCR) of NO with ammonia at low temperature. The results showed that amount Sm markedly influenced activity MnOx catalyst SCR, exhibited a volcano-type tendency an increase in content, appropriate mole ratio to Mn was 0.1. In addition, presence can obviously enhance both water sulfur dioxide resistances. effect on physiochemical properties Sm-MnOx...
Co3O4 supported on ZSM-5 (Co3O4/ZSM-5) catalysts were prepared by impregnation (IM), deposition precipitation (DP), and hydrothermal (HT) methods. Their catalytic performances for the total oxidation of propane tested, their physicochemical properties investigated low-temperature N2 adsorption, XRD, FT-IR absorption spectroscopy, XPS, H2-TPR, TEM, CO chemisorption. The results show that activity Co3O4/ZSM-5 is higher than 1.5 wt % Pd/ZSM-5, preparation methods remarkably affect Co3O4/ZSM-5....
Ordered mesoporous LaCoO3 perovskite with high surface area was synthesized via nanocasting strategy by using ordered cubic (Ia3d) vinyl silica as the template. The sample, prepared filling mesopores in template a La−Co citrate complex precursor followed calcination and removal, characterized XRD, TEM, nitrogen sorption techniques, its catalytic activity tested for complete methane oxidation. wide-angle XRD pattern showed formed no La-oxide/Co-oxide phases were detected obtained material....
The doping of In2O3 significantly promoted the catalytic performance Co3O4 for CO oxidation. activities In2O3–Co3O4 increased with an increase in content, form a volcano curve. Twenty-five wt % (25 InCo) showed highest oxidation activity, which could completely convert to CO2 at temperature as low −105 °C, whereas it was only −40 °C over pure Co3O4. induced expansion unit cell and structural distortion Co3O4, confirmed by slight elongation Co–O bond obtained from EXAFS data. red shift UV–vis...
Density-functional theory calculations have been carried out to systematically study single surface oxygen vacancies on ${\text{CeO}}_{2}(111)$. It is surprisingly found that multiple structures with the two excess electrons localized at different positions can exist. We show origin of multiconfigurations $4f$ a result geometric relaxation and strong localization characteristic in ceria. The importance electron also presented discussed. These results may possess implications for our...
The electromagnetic and microwave absorbing properties of nickel ferrite nanocrystals were investigated for the first time. There two frequencies corresponding to maximum reflection loss in a wide thickness range from 3.0 5.0 mm, which may be bought by nanosize effect good crystallization nanocrystals.
Pd/H-ZSM-5 catalysts could completely catalyze CH4 to CO2 at as low 320 °C, while there is no detectable catalytic activity for pure H-ZSM-5 °C and only a conversion of 40% be obtained 500 over H-ZSM-5. Both the theoretical experimental results prove that surface acidic sites facilitate formation active metal species anchoring sites, which further modify electronic coordination structure species. PdOx interacting with Brönsted acid exhibit Lewis acidity lower oxidation states, proven by XPS,...
Supported gold (Au) nanocatalysts hold great promise for heterogeneous catalysis; however, their practical application is greatly hampered by poor thermodynamic stability. Herein, a general synthetic strategy reported where discrete metal nanoparticles are made resistant to sintering, preserving catalytic activities in high-temperature oxidation processes. Taking advantage of the unique coating chemistry dopamine, sacrificial carbon layers constructed on material surface, stabilizing...
Nanosized MnO2 particles with α-, β-, γ-, and δ-crystal phases were synthesized hydrothermally, characterized by XRD, SEM, HR-TEM, low temperature N2 adsorption, TPR, TPD, FT-IR Raman spectroscopy. The density functional theory (DFT) method was used to calculate the adsorption of propane O2 on catalysts. effect crystal or plane figure catalytic properties for total oxidation evaluated. results showed that β- γ-MnO2 exhibited a 1D structure, δ-MnO2 2D layered-structure material. For deep...
Controlling the physical and chemical properties of alloy nanoparticles (NPs) is an important approach to optimize NP catalysis. Unlike other tuning knobs, such as size, shape, composition, crystal structure has received limited attention not been well understood for its role in This deficiency mainly due difficulty synthesis fine-tuning NPs' structure. Here, Exemplifying by AuCu NPs with face centered cubic (fcc) tetragonal (fct) structure, we demonstrate a remarkable difference phase...
By using cetyltrimethylammonium bromide (CTAB) as the template, a series of mesoporous niobium phosphates were synthesized at different pH values in an aqueous solution. Techniques such small-angle X-ray diffraction, transmission electron microscopy (TEM) and N2 sorption technique employed to characterize structures thus-synthesized materials, EDAX detect composition, FTIR solid state 31P MAS NMR investigate framework information, while their acidic properties analyzed NH3-TPD pyridine-FTIR....