ArticlePolymers2026
Microporous and Mesoporous Carbon Nanofibers from Lignin by In Situ Sodium Templating for Supercapacitor Electrodes.
Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Lignin-derived carbon nanofibers (LCF) with hierarchical micro-mesoporous architecture featuring unusually high mesopore preservation were fabricated by electrospinning. The process used a lignin/poly(ethylene oxide) precursor in an alkaline medium (sodium hydroxide, NaOH), followed by carbonization and selective HCl washing. During electrospinning, sodium species were incorporated from the alkaline spinning solution and, upon subsequent thermal treatment, converted in situ into sodium-containing domains that acted as transient porogens, enabling the development of a highly accessible pore network without conventional activation. The resulting free-standing carbon nanofiber mats exhibited a hierarchical micro-mesoporous architecture, in which 84% of the specific surface area arose from micropores accompanied by a well-defined 8-12 nm mesopore population that is expected to facilitate ion transport, maximizing the utilization of the microporous surface for charge storage. Raman analysis further revealed a defect-rich, edge-abundant sp
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