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Recommended Papers for: Raman Spectroscopy

Total Papers Found: 5

High-electrical-resistivity thermally-conductive phase change materials prepared by adding nanographitic fillers into paraffin

Pristine and modified exfoliated graphite nanoplatelets (xGnPs and M-xGnPs, respectively) were dispersed into a paraffin wax phase change material (PCM) in an effort to raise the thermal conductivity of the PCM. The addition of pure xGnPs would decrease the electrical resistivity of the composite PCM, and thus its potential for use in electrical devices would be limited due to safety concerns. To eliminate this issue, the M-xGnPs were prepared. Samples ...

Author(s): , , , , ,

Thermal Property Measurements of Methane Hydrate Using a Transient Plane Source Technique

This article investigated the thermal properties of methane hydrates to understand their potential in energy applications and how they could affect the climate. The thermal analyzer was used in a high pressure situation to accurately measure the thermal properties of the methane hydrates. This system was modified by the researchers in order to perform in the high pressure situation. Additionally, an uncompacted methane hydrate sample was created in the sample ...

Author(s): , , ,

A Study of Carbonized Lignin as an Alternative to Carbon Black

The properties of carbonized lignin nanoparticles were investigated to determine if this material could be used as an environmentally-friendly alternative to carbon black. The observed surface area of the carbonized lignin was found to be higher than that of carbon black because the powder is highly porous. The lignin nanoparticles were able to be produced in such a way as to give a similar size as carbon black nanoparticles, with ...

Author(s): , ,

Thermal Properties and Characterization of Methane Hydrates

The author presents a study done on methane hydrates to determine their thermal properties. Specifically, the thermal conductivity and thermal diffusivity are investigated to determine if these hydrates would be suitable as an energy source....

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Closed-cell carbon foams from diphenolic acid-based polybenzoxazine

Carbon foams were prepared from diphenolic acid-based benzoxazine foams by pyrolysis under nitrogen atmosphere. The method used in this article produced foams containing a large fraction of closed cells which is uncommon for carbon foams. The foams studied were found to possess similar mechanical properties common to other carbon foams; however, the presence of the high fraction of closed cells led to the lowest observed thermal conductivity ever reported for ...

Author(s): , , , , , , ,