MOF-derived nickel cobaltite: a pathway to enhanced supercapacitor performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F25%3A43975597" target="_blank" >RIV/49777513:23640/25:43975597 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta06866a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta06866a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ta06866a" target="_blank" >10.1039/d4ta06866a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

MOF-derived nickel cobaltite: a pathway to enhanced supercapacitor performance

Popis výsledku v původním jazyce

A streamlined design for nanoarchitecture can substantially enhance the performance of battery-type electrodes, leading to advanced hybrid supercapacitors (HSCs) with improved redox properties. Metal-organic frameworks (MOFs) are promising for electrochemical energy storage; however, they often suffer structural damage during calcination. We present a method to fabricate hierarchically layered sheet-like NiCo2O4 (NCO) nanostructures from MOFs. These nanostructures facilitate improved electron and ion transport while offering numerous electroactive sites. As supercapacitor electrodes, they exhibit a high specific capacity (similar to 597 mA h g-1 at 1 A g-1) and notable rate capability (69.2% retention). The NCO//AC HSC demonstrates a broad voltage window, a specific capacitance of similar to 152 F g-1 at 1 A g-1, a high energy density (similar to 47.3 W h kg-1 at similar to 908.2 W kg-1), and excellent cycle stability (similar to 90.8% retention after 10 000 cycles). This approach is both cost-effective and scalable for commercial energy storage applications.

Název v anglickém jazyce

MOF-derived nickel cobaltite: a pathway to enhanced supercapacitor performance

Popis výsledku anglicky

A streamlined design for nanoarchitecture can substantially enhance the performance of battery-type electrodes, leading to advanced hybrid supercapacitors (HSCs) with improved redox properties. Metal-organic frameworks (MOFs) are promising for electrochemical energy storage; however, they often suffer structural damage during calcination. We present a method to fabricate hierarchically layered sheet-like NiCo2O4 (NCO) nanostructures from MOFs. These nanostructures facilitate improved electron and ion transport while offering numerous electroactive sites. As supercapacitor electrodes, they exhibit a high specific capacity (similar to 597 mA h g-1 at 1 A g-1) and notable rate capability (69.2% retention). The NCO//AC HSC demonstrates a broad voltage window, a specific capacitance of similar to 152 F g-1 at 1 A g-1, a high energy density (similar to 47.3 W h kg-1 at similar to 908.2 W kg-1), and excellent cycle stability (similar to 90.8% retention after 10 000 cycles). This approach is both cost-effective and scalable for commercial energy storage applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Kvantové materiály pro aplikace v udržitelných technologiích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Chemistry A: materials for energy and sustainability

ISSN

2050-7488

e-ISSN

2050-7496

Svazek periodika

13

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

5961-5973

Kód UT WoS článku

001406106200001

EID výsledku v databázi Scopus

2-s2.0-85216331272