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Journal of Wood Chemistry and Technology Volume 37, 2017 - Issue 6
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Original Articles

Preparation of Iron Oxide Particle-Decorated Lignin-Based Carbon Nanofibers as Electrode Material for Pseudocapacitor

Linping WangState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China
,
AorigeleState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, ChinaCorrespondence[email protected]
&
Yuxiang SunState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong, China
Pages 423-432 | Published online: 11 May 2017
 
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Abstract

Iron oxide particle-decorated lignin-based carbon nanofibers (IO-LCNFs) were fabricated from organic mixtures containing acetic acid lignin (AAL) together with ferric acetylacetonate (Fe(acac)3) via electrospinning followed by stabilization in air and carbonization in nitrogen. After the addition of Fe(acac)3, IO-LCNFs showed different morphologies: Non-fused IO-LCNFs were obtained with diameters of 400–500 nm; iron oxide nanoparticles with diameters of 30–60 nm were exposed outside and well-distributed when sufficient amounts of Fe(acac)3 were added. These carbon nanofibers were then used as electrode material for pseudocapacitor. It was found that the iron oxide particles enhanced the resulting electrochemical properties via reversible redox reactions. IO-LCNFs made from the composite nanofibers with mass ratio of AAL/Fe(acac)3 of 80/20 [i.e., IO-LCNFs (80/20)] exhibited the highest specific capacitance, 72.1 F g−1, at current density of 500 mA g−1.

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