Flax-Derived Carbon: A Highly Durable Electrode Material for Electrochemical Double-Layer Supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F21%3A73610650" target="_blank" >RIV/61989592:15640/21:73610650 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2079-4991/11/9/2229" target="_blank" >https://www.mdpi.com/2079-4991/11/9/2229</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano11092229" target="_blank" >10.3390/nano11092229</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flax-Derived Carbon: A Highly Durable Electrode Material for Electrochemical Double-Layer Supercapacitors

Popis výsledku v původním jazyce

Owing to their low cost, good performance, and high lifetime stability, activated carbons (ACs) with a large surface area rank among the most popular materials deployed in commercially available electrochemical double-layer (EDLC) capacitors. Here, we report a simple two-step synthetic procedure for the preparation of activated carbon from natural flax. Such ACs possess a very high specific surface area (1649 m(2) g(-1)) accompanied by a microporous structure with the size of pores below 2 nm. These features are behind the extraordinary electrochemical performance of flax-derived ACs in terms of their high values of specific capacitance (500 F g(-1) at a current density of 0.25 A g(-1) in the three-electrode setup and 189 F g(-1) at a current density of 0.5 A g(-1) in two-electrode setup.), high-rate stability, and outstanding lifetime capability (85% retention after 150,000 charging/discharging cycles recorded at the high current density of 5 A g(-1)). These findings demonstrate that flax-based ACs have more than competitive potential compared to standard and commercially available activated carbons.

Název v anglickém jazyce

Flax-Derived Carbon: A Highly Durable Electrode Material for Electrochemical Double-Layer Supercapacitors

Popis výsledku anglicky

Owing to their low cost, good performance, and high lifetime stability, activated carbons (ACs) with a large surface area rank among the most popular materials deployed in commercially available electrochemical double-layer (EDLC) capacitors. Here, we report a simple two-step synthetic procedure for the preparation of activated carbon from natural flax. Such ACs possess a very high specific surface area (1649 m(2) g(-1)) accompanied by a microporous structure with the size of pores below 2 nm. These features are behind the extraordinary electrochemical performance of flax-derived ACs in terms of their high values of specific capacitance (500 F g(-1) at a current density of 0.25 A g(-1) in the three-electrode setup and 189 F g(-1) at a current density of 0.5 A g(-1) in two-electrode setup.), high-rate stability, and outstanding lifetime capability (85% retention after 150,000 charging/discharging cycles recorded at the high current density of 5 A g(-1)). These findings demonstrate that flax-based ACs have more than competitive potential compared to standard and commercially available activated carbons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

"nečíslováno"

Kód UT WoS článku

000701399000001

EID výsledku v databázi Scopus

2-s2.0-85114005478