| Autor: |
Asih, Retno, Nurdiansah, Haniffudin, Zainuri, Mochamad, Khaerudini, Deni S., Setiawan, Angelinus T., Dias, A. Y., Untoro, Pudji, Sholih, Ahmad, Darminto |
| Předmět: |
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| Zdroj: |
Journal of Renewable Materials; 2024, Vol. 12 Issue 5, p969-979, 11p |
| Abstrakt: |
Biomass has become of recent interest as a raw material for 'green' graphenic carbon (GC) since it promotes an environmentally friendly approach. Here, we investigate a single pyrolysis route to synthesize GC from coconut shells which provides a simple method and can produce a high yield, thus being convenient for large-scale production. The pyrolysis involves a stepped holding process at 350°C for 1 h and at 650°C or 900°C for 3 h. The GC sample resulted at the 900°C pyrolysis has a thinner sheet, a less porous structure, a higher C/O ratio, and an enhanced electrical conductivity than those pyrolyzed at 650°C. The addition of NaPO catalyst has no significant effects on the GC structures obtained by this route. The single pyrolysis route generates thinner GC sheets compared to the two-step heat treatment followed by the liquid phase exfoliation (LPE) procedure. Nevertheless, the latter method offers a formation of clean samples with a porous or holey feature which has potential for advanced energy-storage applications. Graphic Abstract [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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