Biomass-derived laser-induced graphene doped with nitrogen and sulfur for enhanced supercapacitor performance

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL Carbon Pub Date : 2025-03-13 DOI:10.1016/j.carbon.2025.120225

Linjie Du , Bu Quan , Zhaoxuan Xu , Xin Sun , Yu Luo , Jadranka Travas-Sejdic , Bicheng Zhu

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Abstract

Laser-induced graphene (LIG) offers a straightforward, efficient approach to producing graphene due to its simplicity, patterning capability and cost-effectiveness. Leveraging the sustainability of lignin, a by-product of the pulp and paper industry, we fabricated a supercapacitor with superior performance by laser-scribing graphene from a lignin precursor doped nitrogen (N) and sulfur (S) -containing compounds, on a flexible polyethylene terephthalate (PET) film. By using the LIG as the cathode, a poly(3,4-ethylenedioxythiophene) (PEDOT)-modified LIG as the anode and a flexible polymer electrolyte as a separator, we assembled an effective asymmetric supercapacitor architecture. The device demonstrated a high specific capacitance of 29.94 mF/cm² at a current density of 0.15 mA/cm² and excellent long-term cycling stability. This fully organic and cost-effective LIG-based supercapacitor device has a potential for future flexible and wearable (bio)electronics, where energy storage demands flexibility and sustainable design for practical applications in portable electronics.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.