TAILIEUCHUNG - Study on preparation of advanced Ni-Ga based catalysts for converting CO2 to methanol

The paper covered preparations and characterisations of Ni-Ga based catalysts including Ni-Ga alloy, Ni-Ga/mixed oxides, Ni-Ga/ mesosilica and Ni-Ga-Co/mesosilica for synthesis of methanol from direct reduction of CO2 under hydrogen. The Ni-Ga alloy and Ni-Ga/ mixed oxides were prepared by metal melting method established at 1500o C and co-condensation-evaporation method at 80o C for 24 hours, respectively. The Ni-Ga/mesosilica and Ni-Ga-Co/mesosilica catalysts were both prepared by wet impregnation method at room temperature for 24 hours. The dried white powders obtained from the co-condensation-evaporation and the impregnation procedures were contacted with NaBH4 /ethanol solution for reducing metal cations to alloy state at room temperature. Investigations on conversion of CO2 showed that the Ni-Ga/mesosilica and the Ni-Ga-Co/mesosilica catalysts behaved as the best candidates for the process when showing its high conversion of CO2 and selectivity of methanol at high pressure of 35 bars. Especially, the Ni-Ga-Co/mesosilica showed considerable activity and selectivity in the process established at a low pressure of 5 bars. Techniques such as Small Angle X-Ray Diffraction (SAXRD), Wide Angle X-Ray Diffraction (WAXRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Fourier Transform - Infrared Spectroscopy (FT-IR) and X-Ray Photoelectron Spectroscopy (XPS) were applied for characterising the catalysts, and Gas Chromatography (GC) coupled Thermalconductivity detector (TCD) and Flame ionized detector (FID) were used for determining the gas reactants and products. | Study on preparation of advanced Ni-Ga based catalysts for converting CO2 to methanol

• Hoá học
• Carbon dioxide
• Methanol economy
• Mesoporous material
• Converting CO2 to methanol
• Advanced Ni Ga based catalysts
• Carbon dioxide emission
• Carbon tax
• Energy use in south Africa
• Series analysis of carbon dioxide emission
• Economic growth
• Renewable energy
• Natural resources
• Carbon dioxide emission in Malaysia
• Mathematical science
• Physical science
• concentration of carbon dioxide
• Voigt profile
• The main greenhouse gases
• Carbon nanotube titanium dioxide hybrids
• Titanium dioxide
• TiO2/CNTs composite
• Carbon nanotubes
• Methylene blue
• Electricity production
• Carbon dioxide emissions
• Energy transition
• Reduce carbon dioxide emissions in morocco
• Journal of Chemistry
• Carbon dioxide absorption
• Carbon dioxide binding organic liquids
• Fast reaction kinetics
• Stopped flow technique
• BMC Anesthesiology
• Time delay
• Body temperature
• Central venous oxygen saturation
• Arterial blood carbon dioxide
• Arterial venous oxygen difference ratio
• Bài viết nghiên cứu khoa học
• Sulfur dioxide
• Carbon monoxide
• Activated carbon
• Transition metal oxide
• Selective catalytic
• DFT calculations
• DFT D calculations
• Computational methods
• Grand canonical ensemble Monte Carlo
• Platinum nanoparticles
• Supercritical carbon dioxide deposition
• Polymer composites
• Oxygen reduction reaction (ORR)
• công nghệ sinh học
• thực vật
• đông vật
• tế bào
• cận tử
• Biocatalytic Conversion
• Greenhouse Methane
• Porous Solids
• Petrochemical Plant
• Solvent System
• Amines
• Subsequent
• Halohydrin
• CO2 Conversion
• CO2 Capture
• Công nghệ hóa
• Thành phần hóa học
• Tinh dầu tiêu
• Piper nigruml
• Phương pháp carbon dioxide
• Hóa phân tích
• Tomato Lycopersicon esculentum Mill
• Mature green
• Carbon dioxide treatment
• Controlled atmosphere
• Total soluble solids
• Compacting of soil
• Urease enzyme activity
• Carbon dioxide evaluation
• Nitrogen mineralisation
• Enzyme activity
• International Journal of Computer Science and Telecommunications
• Removing lipid from crude collagen of pangasius hypophthalmus
• Supercritical carbon dioxide
• Pangasius hypophthalmus fish skin
• Ánh sáng mạnh
• Nhiệt độ cao
• Thiếu khí carbon dioxide
• Hiện tượng quang ức chế
• Lá Mai Dương Mimosa pigra L
• Vận tốc chuyển điện tử
• Nuclear engineering and technology
• Numerical comparison of thermalhydraulic aspects
• Subcritical water based natural circulation loop
• Heat Transfer Deterioration
• WOFOST validation
• Sensitivity analysis
• CO2 mustard
• Multi crop simulation models
• Carbon dioxide combinations
• Trifolium alexandrinum
• CO2 concentration
• Feed and draught
• Rumen of He Buffalo
• BMC Pediatrics
• Pediatric Intensive Care Unit
• Arterial blood gas analysis
• Transcutaneous carbon dioxide monitoring
• Agronomical manipulations
• Transplanted rice
• Water imponding
• Growth parameters
• BMC Biotechnology
• Fatty acid methyl ester
• Candida antarctica lipase B
• Waste animal fat
• Methanol inhibition