Flash graphene from carbon fiber composites

ǂa ǂsustainable and high-performance electrocatalyst for hydrogen peroxide production

Ivo Bardarov (Avtor), Desislava Yordanova Apostolova (Avtor), Pedro Farinazzo Bergamo Dias Martins (Avtor), Ivo Angelov (Avtor), Francisco Ruiz-Zepeda (Avtor), Ivan Jerman (Avtor), Matevž Dular (Avtor), Dušan Strmčnik (Avtor), Boštjan Genorio (Avtor)

Povzetek

Carbon fiber-reinforced polymer (CFRP) composites are indispensable in various industries due to their exceptional strength-to-weight ratio, outstanding durability, and high stiffness. However, the effective recycling of CFRP remains a major challenge and requires the development of advanced technologies and more sustainable waste management solutions. In this study, we present an efficient and reproducible method for upcycling CFRP waste into large quantities of carbon fiber composite flash graphene (CFC-FG) by cost-effective flash Joule heating (FJH) in the millisecond range. The resulting flash graphene was extensively characterized by morphological, structural, spectroscopic, and chemical analyses. These investigations revealed a highly porous, lamellar structure with a low concentration of oxygen functional groups and a turbostratic graphitic structure. Important structural features, including a distinct D’ peak in Raman spectra and elliptical ring patterns observed in selected area electron diffraction (SAED), emphasized its unique properties. These combined attributes of CFC-FG resulted in excellent electrochemical performance in the two-electron oxygen reduction reaction (2e$^−$ ORR) for the electrosynthesis of hydrogen peroxide (H$_2$O$_2$). CFC-FG showed nearly 100 % selectivity and good activity in 0.1 M KOH, with stability tests confirming the retention of performance, making it a promising candidate for real electrosynthesis applications. The core concept of this work was to develop a recycled, sustainable electrocatalyst for H$_2$O$_2$ electrosynthesis that contributes to a circular economy and supports global sustainability goals.

Ključne besede

bliskoviti grafen;bliskovito Joulovo segrevanje;kompozit iz ogljikovih vlaken;ogljikovi materiali;vodikov peroksid;elektrokemijska sinteza;predelava;trajnost;flash graphene;flash Joule heating;carbon fiber composite;carbon materials;hydrogen peroxide;electrochemical synthesis;upcycling;sustainability;

Podatki

Jezik:	Angleški jezik
Leto izida:	2025
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK:	621.35:620.3:66.097.3
COBISS:	225283075
ISSN:	0013-4686
Št. ogledov:	32
Št. prenosov:	14
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarne ključne besede:	bliskoviti grafen;bliskovito Joulovo segrevanje;kompoziti iz ogljikovih vlaken;ogljikovi materiali;vodikov peroksid;elektrokemijska sinteza;predelava;trajnost;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 1-9
Zvezek:	ǂVol. ǂ517, [article no.] 145754
Čas izdaje:	20 Mar. 2025
DOI:	10.1016/j.electacta.2025.145754
ID:	25859538