ǂa ǂsustainable and high-performance electrocatalyst for hydrogen peroxide production
Ivo Bardarov (Author), Desislava Yordanova Apostolova (Author), Pedro Farinazzo Bergamo Dias Martins (Author), Ivo Angelov (Author), Francisco Ruiz-Zepeda (Author), Ivan Jerman (Author), Matevž Dular (Author), Dušan Strmčnik (Author), Boštjan Genorio (Author)

Abstract

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.

Keywords

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;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
UDC: 621.35:620.3:66.097.3
COBISS: 225283075 Link will open in a new window
ISSN: 0013-4686
Views: 32
Downloads: 14
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Other data

Secondary language: Slovenian
Secondary keywords: bliskoviti grafen;bliskovito Joulovo segrevanje;kompoziti iz ogljikovih vlaken;ogljikovi materiali;vodikov peroksid;elektrokemijska sinteza;predelava;trajnost;
Type (COBISS): Article
Pages: str. 1-9
Issue: ǂVol. ǂ517, [article no.] 145754
Chronology: 20 Mar. 2025
DOI: 10.1016/j.electacta.2025.145754
ID: 25859538