Recyclable HF-free Ti₃C₂T_<i>x</i> 3D-printed supercapacitors: their second life in sodium-ion batteries

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU155968" target="_blank" >RIV/00216305:26620/24:PU155968 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta07436j" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/ta/d4ta07436j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ta07436j" target="_blank" >10.1039/d4ta07436j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Recyclable HF-free Ti₃C₂T_<i>x</i> 3D-printed supercapacitors: their second life in sodium-ion batteries

Popis výsledku v původním jazyce

2D MXenes represent a useful class of materials in various applications and the main constraint for their bulk production is the requirement of hazardous hydrogen fluoride (HF) as an etching agent. Molten salt synthesis is one of the emerging HF-free techniques to produce MXenes, where a mixture of etching salts is heated till their melting point to etch the MAX phase. Here, we etched Ti3AlC2 MAX using the molten salt synthesis method to obtain 2D Ti3C2Tx, by lowering the typical high reaction temperature (similar to 700 degrees C) to 400 degrees C using oxalic acid as an organic additive, which contributes in reducing the overall melting point of the etching salt mixture. Then, the electrochemical properties of Ti3C2Tx were demonstrated by designing recyclable 3D printed supercapacitors using modified polylactic acid (PLA)/conductive graphene 3D electrodes. A real life application of recyclable 3D printed supercapacitors was demonstrated by powering a digital thermometer. Further, the used supercapacitors were recycled to collect the conductive carbon and constructed a sodium-ion battery using it as a conducting additive of the Ti3C2Tx anode and powered up a glucometer. A zero-waste device with the 'concept 3R' (recycle, recover and reuse) reduces the carbon footprint by keeping the materials out of landfills. Concerning environmental safety and e-waste management, this work establishes a green synthesis of Ti3C2Tx and demonstrates the use of recyclable materials in 3D printed devices for energy storage devices.

Název v anglickém jazyce

Recyclable HF-free Ti₃C₂T_<i>x</i> 3D-printed supercapacitors: their second life in sodium-ion batteries

Popis výsledku anglicky

2D MXenes represent a useful class of materials in various applications and the main constraint for their bulk production is the requirement of hazardous hydrogen fluoride (HF) as an etching agent. Molten salt synthesis is one of the emerging HF-free techniques to produce MXenes, where a mixture of etching salts is heated till their melting point to etch the MAX phase. Here, we etched Ti3AlC2 MAX using the molten salt synthesis method to obtain 2D Ti3C2Tx, by lowering the typical high reaction temperature (similar to 700 degrees C) to 400 degrees C using oxalic acid as an organic additive, which contributes in reducing the overall melting point of the etching salt mixture. Then, the electrochemical properties of Ti3C2Tx were demonstrated by designing recyclable 3D printed supercapacitors using modified polylactic acid (PLA)/conductive graphene 3D electrodes. A real life application of recyclable 3D printed supercapacitors was demonstrated by powering a digital thermometer. Further, the used supercapacitors were recycled to collect the conductive carbon and constructed a sodium-ion battery using it as a conducting additive of the Ti3C2Tx anode and powered up a glucometer. A zero-waste device with the 'concept 3R' (recycle, recover and reuse) reduces the carbon footprint by keeping the materials out of landfills. Concerning environmental safety and e-waste management, this work establishes a green synthesis of Ti3C2Tx and demonstrates the use of recyclable materials in 3D printed devices for energy storage devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LM2018110" target="_blank" >LM2018110: Výzkumná infrastruktura CzechNanoLab</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Svazek periodika

13

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

795-807

Kód UT WoS článku

001367701000001

EID výsledku v databázi Scopus

2-s2.0-85211004795