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源自牛皮纸木质素的激光诱导石墨烯用于柔性超级电容器

Laser-Induced Graphene Derived from Kraft Lignin for Flexible Supercapacitors.

作者信息

Mahmood Faisal, Zhang Hanwen, Lin Jian, Wan Caixia

机构信息

Department of Biomedical, Biological, and Chemical Engineering, University of Missouri, Columbia, Missouri 65211, United States.

Department of Energy Systems Engineering, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan.

出版信息

ACS Omega. 2020 Jun 9;5(24):14611-14618. doi: 10.1021/acsomega.0c01293. eCollection 2020 Jun 23.

DOI:10.1021/acsomega.0c01293
PMID:32596598
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7315590/
Abstract

Porous graphene was photothermally induced from kraft lignin via direct laser writing. This laser-induced graphene (LIG) possessed a hierarchical structure with a three-dimensional (3D) interconnected network ideal for its transfer from the kraft lignin/poly(ethylene oxide) (KL/PEO) film onto polydimethylsiloxane (PDMS). The resultant LIG/PDMS composite was shown to keep the intrinsic porous structure and electrically active sites of LIG. The supercapacitors (SCs) fabricated using the LIG/PDMS composite exhibited good electrochemical performance and excellent cyclic stability. More than 90% capacitance was retained after 10 000 cycles. Moreover, due to their high flexibility, the SCs were able to endure bending deformation without significantly sacrificing their capacitance. The proposed technology for the fabrication of flexible SCs based on lignin-derived LIG demonstrated great potential to use a low-cost, renewable material for the manufacture of portable and wearable electronics.

摘要

通过直接激光写入从牛皮纸木质素光热诱导制备多孔石墨烯。这种激光诱导石墨烯（LIG）具有分层结构，其三维（3D）互连网络非常适合从牛皮纸木质素/聚环氧乙烷（KL/PEO）薄膜转移到聚二甲基硅氧烷（PDMS）上。结果表明，所得的LIG/PDMS复合材料保留了LIG的固有多孔结构和电活性位点。使用LIG/PDMS复合材料制造的超级电容器（SCs）表现出良好的电化学性能和出色的循环稳定性。在10000次循环后，电容保留率超过90%。此外，由于其高柔韧性，SCs能够承受弯曲变形而不会显著牺牲其电容。所提出的基于木质素衍生LIG制造柔性SCs的技术显示出使用低成本、可再生材料制造便携式和可穿戴电子产品的巨大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/ff9c63b64939/ao0c01293_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/4769fdd86560/ao0c01293_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/51b8cf1c9282/ao0c01293_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/443c81e70917/ao0c01293_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/34451f7259d4/ao0c01293_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/98340d3d4edb/ao0c01293_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/96aaa9dc5471/ao0c01293_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/ff9c63b64939/ao0c01293_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/4769fdd86560/ao0c01293_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/51b8cf1c9282/ao0c01293_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/443c81e70917/ao0c01293_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/34451f7259d4/ao0c01293_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/98340d3d4edb/ao0c01293_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/96aaa9dc5471/ao0c01293_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4747/7315590/ff9c63b64939/ao0c01293_0007.jpg

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