Abstract
Vanadium oxide-based composite catalysts were prepared, and their activities in a styrene oxidation reaction were tested. These catalysts included (i) vanadium oxide (VxOy) supported on multi-walled carbon nanotubes (CNTs) (CNTs-VxOy), (ii) a carbon nanotube CNTs-VxOy template coated with γ-Al2O3 (CNTs-VxOy/Al2O3), (iii) γ-Al2O3/VxOy nanoparticles and (iv) vanadium oxide nanotubes (VxOy-NTs). The structure of these catalysts was determined by TEM, SEM, nitrogen adsorption (BET surface area), TGA and FTIR. The oxidation process was examined between styrene and anhydrous hydrogen peroxide which was catalyzed using the above VxOy-based composite catalyst. The vanadium particles embedded on the wall of CNTs have a satisfactory catalytic activity for oxidation. The effect of the operating parameters, including the reaction temperature, solvent type, reaction time, oxidant concentration and catalyst loading, on styrene conversion and benzaldehyde selectivity was studied.
Keywords: Carbon nanotubes (CNTs), Composite materials, Nanostructure materials, Transition metal alloys and compounds, Sol-gel processes, Vanadium oxide, Styrene oxidation, Benzaldehyde, Anhydrous hydrogen peroxide, Nano catalyst
Call for Papers in Thematic Issues
Role of nanomaterials in fabrication of coatings, Machining and Joining
The application of nanoscience has brought about a revolution in the field of mechanical engineering by providing novel materials, boosting manufacturing processes, and generating cutting-edge products. The purpose of this special issue is to investigate the enormous impact that nanoscience has had on mechanical engineering, with a particular emphasis on ...read more
Advanced Inorganic Nanocomposites and Their Emerging Applications
This special issue collection will highlight developments on the recent trends about the synthesis of metal oxides, nanoclusters, biomaterials, 2D nanomaterials, nanocrystals, nanocomposites, etc. and their applications in electrochemical systems, tissue regeneration, energy storage and harvesting, sensors, etc. The novelty of the methods in the chemical synthesis and their characterizations, ...read more
Applicability of Nanotechnology for Performance Enhancement of Clean Energy Technologies
Population growth, industrialization, and improvement in living quality would lead to further increase in energy demand in near future. Regarding the disadvantages of fossil fuels such as fluctuations in their price, high emissions of greenhouse gases and restriction of their sources, it is crucial to use and exploit alternative energy ...read more
Graphene and 2D Materials for Energy Storage and Conversion
This thematic issue will discuss the recent advances in graphene-based nanomaterials for different energy technologies. Graphene possesses a high surface area, and stable structure and exhibits many interesting electronic, optical, and mechanical properties due to its 2D crystal structure. Graphene is of both fundamental interest and suitable for a wide ...read more
Related Books
Nanoscale Field Effect Transistors: Emerging Applications
Nanoelectronics Devices: Design, Materials, and Applications Part II
Nanoelectronics Devices: Design, Materials, and Applications (Part I)
Role of Nanotechnology in Cancer Therapy
Synthesis and Applications of Semiconductor Nanostructures
Pathways to Green Nanomaterials: Plants as Raw Materials, Reducing Agents and Hosts
Applications of Nanomaterials in Medical Procedures and Treatments
Synthesis of Nanomaterials
Nanobiotechnology: Principles and Applications
Bio-Inspired Nanotechnology
4