A5102954338- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysts for Methane Reforming
- Nuclear materials and radiation effects
- Gas Sensing Nanomaterials and Sensors
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- Zeolite Catalysis and Synthesis
- ZnO doping and properties
- Luminescence Properties of Advanced Materials
- Catalysis and Hydrodesulfurization Studies
- Industrial Gas Emission Control
- Radioactive element chemistry and processing
- Carbon dioxide utilization in catalysis
- Magnetic and transport properties of perovskites and related materials
- Advancements in Solid Oxide Fuel Cells
- Advanced Photocatalysis Techniques
- Nanomaterials for catalytic reactions
- Electrocatalysts for Energy Conversion
- Advanced materials and composites
- Copper-based nanomaterials and applications
- Nuclear Materials and Properties
- Ammonia Synthesis and Nitrogen Reduction
- Microwave Dielectric Ceramics Synthesis
- CO2 Reduction Techniques and Catalysts
Nanchang University
2016-2025
Zhongkai University of Agriculture and Engineering
2023
Jiangxi Normal University
2020
Beijing University of Technology
2018-2019
Liaoning Shihua University
2008
Guangxi Normal University
2004
Cr cation doping in the support of Ru/CeO2 catalyst with a Cr/Ce molar ratio 1:9 dramatically improved CO2 methanation activity at low temperatures, turnover frequency value on Ru/Ce0.9Cr0.1Ox 150 °C being 5.3 times higher than that Ru/CeO2. X-ray diffraction and Raman spectroscopy results confirmed Cr3+ lattice CeO2 support. Thus, more reactive surface oxygen formed Ce0.9Cr0.1Ox support, contained vacancies hydroxyl groups during reduction process catalyst. In situ Fourier transform...
To probe the phase structure–reactivity relationship of A2B2O7 catalysts for oxidative coupling methane (OCM), three model La2B2O7 compounds with Ti4+, Zr4+, or Ce4+ at B-site have been purposely designed. By decreasing rA/rB ratios in order La2Ti2O7 > La2Zr2O7 La2Ce2O7, typical monoclinic layered perovskite, cubic ordered pyrochlore, and disordered defective fluorite are formed, respectively. The reaction performance based on CH4 conversion C2 product yield follow La2Ce2O7 La2Ti2O7. It has...
To investigate the Li+ doping effect on structure and reactivity of NiO, a series NiO catalysts doped by cations have been synthesized probed using CO oxidation as model reaction. With combination experimental methods DFT calculations, it has revealed that preferentially replace lattice Ni2+ instead directly refilling vacancies in cubic to form solid solution below capacity. For samples possessing pure phase, Ni3+ cation amount increases with increasing content, hence inducing formation...
Abstract A 2 B O 7 oxides comprise four subcrystalline phase structures, which include the layered perovskite, pyrochlore, disordered defect fluorite, and rare‐earth C‐type structures. Herein, a series of have been synthesized using simple methods, X‐ray diffraction (XRD) Raman spectroscopic characteristics their structures are systematically summarized. It was found that r / ratio can be used to correctly determine structure when A‐site ions ions. Although main‐group metal ions, cannot...
A series of Ca 2+ -doped CeO 2 solid solutions with 10 wt% Ni loading (named Ni/Ca x Ce 1− O y ) was used for effective CO methanation.
Abstract To decode the A‐site substitution effect on reactivity of Al‐based spinel complex oxides, a series AAl 2 O 4 (A=Cu, Co, Ni, Zn) compounds were manufactured and tested by toluene combustion. It was confirmed that pure crystalline phase has been successfully synthesized for all catalysts. The CO oxidation activity are sequenced as CuAl >CoAl >NiAl >ZnAl . As discovered, both active surface − acid sites two critical factors to determine reactivity, which can adsorb activate...
Abstract The aminosilane-modified magnetite nanoparticles were synthesized by the coprecipitation and surface modification with 3-aminopropyltriethoxysilane (APTTS). superparamagnetic APTTS/Fe3O4 nanospheres an average diameter of 10 nm characterized significantly functional group, well dispersion stabilization in aqueous fluids, as a maximized saturation magnetization 63.54 emu/g.
The Ln<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> phase varies from pyrochlore to defective fluorite with decreasing <italic>r</italic><sub>A</sub>/<italic>r</italic><sub>B</sub>, thus resulting in Ni/Ln<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> catalysts improved performance.
A series of Ru/Ti1–xMnxO2 catalysts with varying Mn/(Ti + Mn) molar ratios (x = 0.10–0.25) were synthesized to investigate the CO2 methanation mechanism on anatase TiO2-supported Ru (Ru/a-TiO2) and develop high-performance at low temperatures. Among these catalysts, Ru/Ti0.8Mn0.2O2 exhibited highest activity, achieving approximately 65% conversion 230 °C, which is markedly superior unmodified Ru/a-TiO2 catalyst yielding only about 15% conversion. The majority Mn cations incorporated into...
Abstract Mesoporous Ni‐Al 2 O 3 catalysts were prepared in one pot following an evaporation‐induced self‐assembly method (EISA) and used for methane dry reforming. Compared with a traditional Ni/Al catalyst through impregnation (IMP), the EISA display significantly improved coke resistance activity. It is revealed by small‐angle XRD (SXRD), N adsorption–desorption, TEM that ordered mesoporous structure was formed catalysts, which impedes aggregation of Ni sites aids mass transfer reaction....