TEM – TechConnect Briefs

Laser Carbon Interactions

Vander Wal R., Abrahamson J., Penn State University, US

This presentation describes laser heating of carbon materials. The carbon industry has been annealing carbon via traditional furnace heating since at least 1800, when Sir Humphry Davy produced an electric arc with carbon electrodes made [...]

Interfacial nanostructure dictates macro-structural properties of carbon-carbon composites

Singh M., Vander Wal R., Pennsylvania State University, US

Carbon-carbon composites, originally developed for aerospace applications, are materials that consist of a carbonaceous matrix with an embedded carbon filler providing the required reinforcement for thermal and mechanical stability. An important aspect of composites is [...]

Synthesis and Characterization of Magnetite Nanoparticles, Activated Carbon and their Composites

Adegoke H.I., Adekola F.A., Abdul Raheem M.N., University of Ilorin, NG

Magnetite nanoparticle (MNP), Fe3O4 was prepared via co-precipitation method, activated carbon was produced from coconut coir pith through chemical activation process. As coconut coir showed maximum weight loss at temperatures lower than 500°C, it was [...]

Effect of filler size in a graphene-anthracene carbon-carbon composite

Singh M., Vander Wal R., Pennsylvania State University, US

Characterizing carbon-carbon composite behavior across multiple length scales is essential to comprehending its macro-scale behavior. This work characterizes a graphene-anthracene composite from the nano- to the micron-scale with a variety of analytical techniques brought to [...]

Laser Annealing Nanoscale Carbons: Material Transformations

Vander Wal R., Abrahamson J., Gaddam C., Penn State University, US

Laser processing of materials is not new, but using lasers to anneal, bond and otherwise transform carbons is. Fundamental understanding of the dependence upon carbon structure, morphology and chemistry is critical to implementing this technology [...]

Comparative HRTEM Examination of Carbon Black and Soot Structures

Spry J.M., Compton S.P., MVA Scientific Consultants, US

Soot is a major source of airborne particulate and typically contains primary particles which are less than one micrometer in diameter. Soot particles form as an undesired combustion by-product originating from a variety of different [...]

Facile synthesis of graphene and its application in the preparation of L-Asparginase based sensor obtained from Bacillus cereus strain for the detection of leukemia

Talat M., Kumar Pandey R., Medicherla J.V., Nath Srivastava O., Banaras Hindu University, IN

The current study presents the development of a novel, diagnostic and cost-effective L-Asparaginase based biosensor conjugated to graphene for monitoring asparagines in leukemic patients. L-Asparaginase (E.C. 3.5.1.1) acts as an anti-leukemic agent by inhibiting the [...]

Adsorption of Cd (II) Ions from Aqueous Solution Using Activated Carbon Prepared from Vitellaria paradoxa Shell

Adebayo G.B., Adekola F.A., Jimoh A.A., Alao F.O., Adegoke H.I., University of Ilorin, NG

Activated carbon prepared from vitellaria paradoxa shell using ortho-phosphoric acid as activating agent was used for the removal of Cd (II) ions from aqueous solution. The adsorbent sample was characterized by some physicochemical and spectroscopic [...]

Synthesis and Characterisation of Nano-Sized Triphenylphosphine Capped bis(4-methylpiperazine-1-carbodithioato) zinc(ll)

Kalia S.B., Sharma M., Himachal Pradesh University, Shimla, IN

Present study involves the synthesis of and studies on a nanosized coordinate complex of 4-methylpiperazine-1-carbodithioate (4-MPipzcdt) ligand with zinc(II), i.e. Zn(4-MPipzcdt)2, using triphenylphosphine (PPh3) as capping agent. TEM study revealed nanosized particles with size range [...]

Aerosolization of Carbon Nanotubes for the Development of Reference Air Samples

Cavaliere M.R., Compton S.P., MVA Scientific Consultants, US

Reports on the inhalation risks associated with carbon nanotubes (CNTs) express concern for exposures throughout the lifetime of CNTs and CNT-enabled products. The ability to quantify airborne exposures to workers and consumers will be a [...]