A5067662953- Catalysts for Methane Reforming
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysis for Biomass Conversion
- Catalysis and Hydrodesulfurization Studies
- Copper-based nanomaterials and applications
- Electrocatalysts for Energy Conversion
- Nanomaterials for catalytic reactions
- Metal-Organic Frameworks: Synthesis and Applications
- Nanocluster Synthesis and Applications
- CO2 Reduction Techniques and Catalysts
- Advanced Photocatalysis Techniques
- Time Series Analysis and Forecasting
- Advanced materials and composites
- Carbon dioxide utilization in catalysis
- Covalent Organic Framework Applications
- Oxidative Organic Chemistry Reactions
- Caching and Content Delivery
- Image and Video Quality Assessment
- Graphene research and applications
- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Network Security and Intrusion Detection
- ZnO doping and properties
- Mesoporous Materials and Catalysis
Wuhan Textile University
2023-2024
Minzu University of China
2022-2023
Hong Kong Polytechnic University
2023
South Central Minzu University
2018-2022
State Ethnic Affairs Commission
2018-2021
Wuhan University of Science and Technology
2018-2019
In order to understand the role of Co catalysts with different phases on Fischer–Tropsch synthesis, single-phase face-centered-cubic (fcc) and hexagonal-close-packed (hcp) were synthesized via a two-step approach, involving formation CoO materials followed by reduction in H2. The physicochemical properties thoroughly characterized XRD, SEM, TEM, TPR, H2 chemisorption. It was found that hcp-Co exhibits higher activity hydrocarbon than fcc-Co synthesis. For both catalysts, CO dissociation...
The development of efficient catalysts for Fischer-Tropsch (FT) synthesis, a core reaction in the utilization non-petroleum carbon resources to supply energy and chemicals, has attracted much recent attention. ε-Iron carbide (ε-Fe2C) was proposed as most active iron phase FT but this is generally unstable under realistic conditions (> 523 K). Here, we succeed stabilizing pure-phase ε-Fe2C nanocrystals by confining them into graphene layers obtain an iron-time yield 1258 μmolCO gFe-1s-1...
Ni-based catalysts supported on alumina with different morphologies exhibited properties for the dry reforming of methane due to their specific lattice planes, 3D structures, and surface functional properties.
Converting captured carbon dioxide (CO2) into valuable chemicals and fuels through electrocatalysis realizing the anthropogenic closed-carbon cycle can provide new solutions to environmental energy problems. Nanoporous organic frameworks, including metal-organic frameworks (MOFs) porous polymers (POPs), as a class of potential electrocatalysts, have made great progress in CO2 reduction reaction due their high porosity, large specific surface area, structural/functionalization diversity. In...
A pseudo-<italic>in situ</italic> research method was applied to provide insight into the structural evolution of carbon in an Fe@C catalyst at different stages Fischer–Tropsch reaction.
Cobalt (Co) with a hexagonal-close-packed structure (hcp-Co) has been documented as preferred active phase for Co versus face-centered-cubic (fcc-Co) in Fischer–Tropsch synthesis (FTS) reaction. Thus, hcp-Co high dispersion and durability is highly attractive, this work, its controlled formation was targeted. This challenging, however, because of the complexity transition during materials processing. With use carbon nanofiber (CNF) catalyst support, two-step approach through an oxide...
Lattice matching facilitates the growth of heteroatoms on a stable substrate with similar lattice spacing, thereby offering solution for synthesizing inherently unstable active atoms while simultaneously exhibiting novel properties. In this study, concept was used to construct highly metastable hcp-Co phases Fischer–Tropsch Synthesis (FTS) reaction. The formation species achieved by initially depositing wurtzite CoO ZnO (ZnO@h-CoO), which exhibited only mismatch 0.18%, followed reduction H2...
Single-atom catalysts (SACs) are attractive in one-carbon (C1) chemistry because of their high atom efficiency. However, it is a great challenge for understanding the dynamic roles SACs under operating conditions. Here, isolated Pt atoms trapped on defective CeO2 surface investigated by experiments, especially operando techniques, which offers basic nature and evolution Pt–CeO2 interface dry reforming methane (DRM). The Pt–Olattice configuration highly active CH4 dissociation at expense...
Pure-phase cobalt nanocrystals with well-defined specific exposed facets were synthesized via controllable reduction of their CoO counterparts while retaining the same scale particle size. Three different catalysts, i.e. hexagonal close-packed (hcp) Co pyramid (10-11) and rodlike (10-10) facets, as well face-centred cubic (fcc) octahedron (111) obtained studied for Fischer-Tropsch synthesis (FTS) reaction. No noticeable changes either shape or found under practical FTS reaction conditions....
Due to the special framework structure, ZIF-67 is a promising material as precursor prepare Co@C catalysts with high cobalt loading and superior dispersion. Unfortunately, these Co@C-X exhibit not only unsatisfied activity but also CH4 selectivity. This limited its further application due lack of in-depth analysis reasons behind it. In this work, were prepared by pyrolyzing at different temperatures. A series characterizations conducted explore behavior graphite carbon coated on species,...
A series of surface-modified TiO2 samples (Al-TiO2, Si-TiO2, and C-TiO2) with similar physical properties were synthesized. Comparison the profound effect different interfaces Co catalyst on activity stability in Fischer–Tropsch synthesis was investigated. Al2O3 or SiO2 nanoshell-modified enhances cobalt dispersion (Co/Al-TiO2) reducibility (Co/Si-TiO2), which results an increased cobalt-time-yield (CTY) catalysts. Hydrothermal carbon (HTC) shell modified can simultaneously promote...
Metal–organic framework of MIL‐53(Al) (Al(OH)‐[O 2 C‐C 6 H 4 ‐CO ]) with exceptional thermal stability (as high as ≈550 °C in dynamic conditions) are synthesized via a solvothermal method, which serve porous host matrix Co‐based catalysts for Fischer–Tropsch synthesis (FTS). shows large micropores and lattice flexibility, make this material promising support active cobalt species. The as‐synthesized Co/MIL‐53(Al) different loadings characterized by powder X‐ray diffraction (XRD),...
The traditional Fischer–Tropsch synthesis generates products with a distribution that follows theoretical restriction, suffering from low selectivity toward desired products. Recent use of metal oxide–zeolite bifunctional catalysts has allowed break such accompanied by residual CO molecules. In these systems, conversion is usually and the presence molecules would accompany diffusion intermediates into zeolite pores subsequent transformation. However, relationship between elusive. Herein, in...
Metal-support interaction has been one of the main topics research on supported catalysts all time. However, many other factors including particle size, shape and chemical composition can have significant influences catalytic performance when considering role metal-support interaction. Herein, we designed a series Cu x O/ZnO as examples to quantitatively investigate how performance. The electronic interactions between O ZnO were regulated successfully without altering structure catalyst. Due...
Highly loaded Ni catalysts with dual size distribution fabricated by COR pretreatment promote carbon dioxide reforming of methane reaction.
Series of catalysts with Co nanoparticles embedded in matrix porous carbon is directly synthesized<italic>via</italic>a unique melting approach. No obvious deactivation observed at high operating temperature and CO conversion levels.