HPLC is a chromatographic technique that can separate a mixture of compounds and is used in biochemistry and analytical chemistry to identify, quantify and purify the individual components of the mixture. HPLC typically utilizes different types of stationary phases, a pump that moves the mobile phase(s) and analyte through the column, and a detector to provide a characteristic retention time for the analyte. Analyte retention time varies depending on the strength of its interactions with the stationary phase, the ratio/composition of solvent(s) used, and the flow rate of the mobile phase.
ChemicalizerEng
Solid Oxide Fuel Cell (SOFC)
A solid oxide fuel cell (SOFC) is an electrochemical conversion device that produces electricity directly from oxidizing a fuel. Fuel cells are characterized by their electrolyte material; the SOFC has a solid oxide or ceramic, electrolyte. Advantages of this class of fuel cells include high efficiency, long-term stability, fuel flexibility, low emissions, and relatively low cost. The largest disadvantage is the high operating temperature which results in longer start-up times and mechanical and chemical compatibility issues.
A comprehensive review on fuel cell modeling, simulation and control has been represented on “Mathematical Modeling, Steady-Stateand Dynamic Behavior, and Control of Fuel Cells: A Review” published on I&E Chemistry Research.
Carbon Nanotube Composites
Carbon nanofibers and nanotubes are promising to revolutionize several fields in material science and are a major component of nanotechnology. Further market development will depend on material availability at reasonable prices. Nanotubes have a wide range of unexplored potential applications in various technological areas such as aerospace, energy, automobile, medicine, or chemical industry, in which they can be used as gas adsorbents, templates, actuators, composite reinforcements, catalyst supports, probes, chemical sensors, nanopipes, nano-reactors etc. Since the discovery of CNTs, they have been the focus of frontier research. It has opened vast areas of research which also include nanoscale reinforcements in composites in order to improve their mechanical, thermal and even electrical properties.
I read an article entitled "Carbon nanotube based composites - A review" published in Journal of Minerals & Charaterization & Engineering recently that has focused on recent research on carbon nanotube composites. The interfacial bonding properties, mechanical performance, electrical percolation of nanotube/polymer and ceramic are also reviewed.
Suspension Polymerization
Suspension polymerization is a polymerization process that uses mechanical agitation to mix the monomer or mixture of monomers in a liquid phase such as water, polymerizing the monomer droplets while they are dispersed by continuous agitation. This process is used in the production of most PVC, a widely used plastic, as well as Sodium polyacrylate, a superabsorbent polymer used in disposable diapers.
"An Updated Review on Suspension Polymerization", published in I&EC research is aimed at providing a sound basis for the theoretical background required to build an effective model for the particle size distribution (PSD) in suspension polymerization.
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