| Titre : |
Preparation of leather-based free-standing electrode and its electrochemical performance |
| Type de document : |
texte imprimé |
| Auteurs : |
Fei Ma, Auteur ; Ding Shaolan, Auteur ; Ren Huijun, Auteur ; Ren Jun, Auteur ; Liang Jianfang, Auteur ; yue Wang, Auteur ; Yinghua Ma, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 95-104 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Carbone
Cuir
Electrochimie
Electrodes
Energie -- Stockage
Plaques (ingénierie)
Surfaces -- Analyse
|
| Index. décimale : |
675 Technologie du cuir et de la fourrure |
| Résumé : |
Based on the high proportion of nitrogen content and natural pore structure of leather, this paper uses discarded leather as a raw material to prepare a nitrogen-doped leather-based free-standing carbon sheet by a high-temperature carbonisation-air activation method. The porous carbon sheets are prepared with a relatively high surface area, and there are some partial micropores and mesopores in the well-interconnected macropores. The results show that the carbon sheets reveal a lower internai resistance in the 6mol L-1 KOH electrolyte used as a supercapacitor electrode. When the current density is 0.5A.g-1, ALCS-300 (Activated Leather Carbon Slices) obtains a specific capacitance of 136.5F.g-1. In addition, it has excellent cycle stability. After 5000 cycles at a current density of 1A.g-1, the specific capacity retention rate is 94.5%. Since it eliminates the need to add any chemical reagents and is low in cost during the carbonisation-activation (air) process, it does not require additional adhesives, conductive agents and current collectors during electrode assembly, which can further simplify the assembly process, so it provides a good alternative to carbon electrodes for energy storage device. |
| Note de contenu : |
- EXPERIMENTAL PROCEDURES : Experimental materials and reagents - Preparation of N-doped leather-based carbon sheets - Material characterisation - Electrochemical test
- RESULTS AND DISCUSSION : Structure and morphological analyses of leather-based free-standing carbon sheets - Analyses of specific surface area and pore structure of leather-based free-standing carbon sheets - XRD analyses of leather-based free-standing carbon sheet - Raman spectroscopy analyses of leather-based free-standing carbon sheets - X-ray photoelectron spectroscopy analyses of leather-based free-standing carbon sheets - Exploration of the formation mechanism of the pore structures of the leather-based free-standing carbon sheet - Analyses of the electrochemical properties of leather-based freestanding carbon sheets
- Table 1 :Specific surface areas and pore volumes of LCS-900 and ALCS-300
- Table 2 : Elemental analyses of LCS-900 and ALCS-300 samples |
| En ligne : |
https://drive.google.com/file/d/1f3dvuwDee2tn_pizU7434rfxdozGg7aQ/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35548 |
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 105, N° 2 (03-04/2021) . - p. 95-104
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