Electromagnetic wave absorption of coconut fiber-derived porous activated carbon

Activated Carbon Fiber - the Hybrid of Carbon Fiber and Activated Carbon

From application perspectives in adsorption, activated carbon fiber (ACF) is by far one of the most important carbon nanoporous materials to be considered. It has great advantages over other commercial porous storage materials. Activated carbon fiber (ACF) is a promising microporous material with a fiber shape and well-defined porous structure. In general, production of ACF can be commercially ...

Electromagnetic Wave Propagation in Periodic Porous Structures

We employ a homogenization procedure to describe the propagation of electromagnetic waves in a dielectric structure which is doubly-periodic in the X-Y plane and of arbitrary variation in the direction of propagation, Z. The fundamental cell is composed of an arbitrarily shaped pore filled with a dielectric and the host by another. Our analysis yields the structure of the electromagnetic fields...

Life Cycle Assessment of activated carbon production from coconut shells

Activated carbons have excellent performance in a number of process applications. In particular, they appear to have the most favourable characteristics for adsorption processes, thanks to their high porosity and large surface area. However, a comprehensive assessment of the environmental impacts of their manufacturing chain is still lacking. This study evaluates these impacts taking the specif...

High Frequency Properties of Carbon Nanotubes and their Electromagnetic Wave Absorption Properties

Preparation and hydrogen storage capacity of highly porous activated carbon materials derived from polythiophene

Highly porous carbons have been successfully synthesized by chemical activation of polythiophene with KOH. The activation process was performed under relatively mild activation conditions, i. e., a KOH/polymer weight ratio of 2 and reaction temperatures in the 600 – 850 oC range. The porous carbons thus obtained possess very large surface areas, up to 3000 m/g, and pore volumes of up to 1.75 cm...