ZnCl2-assisted conversion of nitrogen-containing biomass carbon from marigold flower: toward highly porous activated nitrogen-doped carbon for low ESR and enhanced energy density supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F24%3A00578321" target="_blank" >RIV/61389013:_____/24:00578321 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352152X23031262?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352152X23031262?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.est.2023.109728" target="_blank" >10.1016/j.est.2023.109728</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ZnCl2-assisted conversion of nitrogen-containing biomass carbon from marigold flower: toward highly porous activated nitrogen-doped carbon for low ESR and enhanced energy density supercapacitors

Popis výsledku v původním jazyce

Herein, we report the synthesis and characterization of hierarchical porous activated nitrogen-doped carbon from pyrolysis of dried marigold flower precursor as an effect of different impregnation zinc chloride (ZnCl2) (1:1, 1:3 and 1:5) named FZ11, FZ13, and FZ15. BET and FESEM show the enhancement in porosity and surface area with activation with highest specific surface area of 1274.45m2/g for FZ15. XPS confirms the engineering of nitrogen content into functional nitrogen doped sites upon the action of ZnCl2 activation as N-reservoir which results in increase in specific capacitance of fabricated symmetric cell (without any conductive black) increases with activation and shows the highest specific capacitance of 179 F/g, energy density of 23 Wh/kg and power density of 556 W/kg for FZ15 sample. Addition of carbon black helps in lowering ESR to 0.77 Omega and enhancement in energy density and series combination of 3 such cells glow yellow LED for similar to 3 min.

Název v anglickém jazyce

ZnCl2-assisted conversion of nitrogen-containing biomass carbon from marigold flower: toward highly porous activated nitrogen-doped carbon for low ESR and enhanced energy density supercapacitors

Popis výsledku anglicky

Herein, we report the synthesis and characterization of hierarchical porous activated nitrogen-doped carbon from pyrolysis of dried marigold flower precursor as an effect of different impregnation zinc chloride (ZnCl2) (1:1, 1:3 and 1:5) named FZ11, FZ13, and FZ15. BET and FESEM show the enhancement in porosity and surface area with activation with highest specific surface area of 1274.45m2/g for FZ15. XPS confirms the engineering of nitrogen content into functional nitrogen doped sites upon the action of ZnCl2 activation as N-reservoir which results in increase in specific capacitance of fabricated symmetric cell (without any conductive black) increases with activation and shows the highest specific capacitance of 179 F/g, energy density of 23 Wh/kg and power density of 556 W/kg for FZ15 sample. Addition of carbon black helps in lowering ESR to 0.77 Omega and enhancement in energy density and series combination of 3 such cells glow yellow LED for similar to 3 min.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

2352-1538

Svazek periodika

75

Číslo periodika v rámci svazku

1 January

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

109728

Kód UT WoS článku

001124650200001

EID výsledku v databázi Scopus

2-s2.0-85182289431