Effect of the carbonization temperature of plant biomass on the structure, surface condition and electrical conductive properties of carbon nanoporous material

Abstract

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Effect of Thermal Activation on the Structure and Electrochemical Properties of Carbon Material Obtained from Walnut Shells

“…The shape of the CVA curves ( Figure 11 a,b) indicates the predominantly capacitive nature of charge accumulation, as they exhibit a relatively symmetrical shape without redox peaks. This indicates the quasi-reversibility of the charge/discharge processes within the investigated electrochemical systems [ 38 ]. However, more pronounced deviations from the practically rectangular shape are observed on the CVA curve for the CCA2 sample compared to the other samples.…”

“…Figure 7 shows the Raman spectra (RS) of both the initial and activated PVM. Within these spectra, two bands ( D and G ) are evident, characteristic of the first-order Raman scattering of disordered amorphous carbon [ 38 ]. The G (“Graphite”) band, appearing around ~1580 cm −1 , originates from the active Raman mode E 2g of graphite.…”

“…Afterwards, the furnace was turned off and allowed to cool to room temperature. The resulting carbonized material was then crushed using mechanical grinding, resulting in the production of carbon material, designated as CC [ 38 ].…”

The effect of orthophosphoric acid on energy-intensive parameters of porous carbon electrode materials.

“…The most common methods for obtaining PCMs are physical or chemical activation of carbonaceous RMs [15][16][17], as well as methods of template synthesis [18,19]. Chemical activation usually occurs at temperatures (400-800°C) and is accompanied by the use of dehydrating agents (phosphoric acid, zinc chloride, potassium hydroxide).…”