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源自金属离子浸渍有害不可食用海藻的分级石墨碳结构作为能源相关材料

Hierarchically Graphitic Carbon Structure Derived from Metal Ions Impregnated Harmful Inedible Seaweed as Energy-Related Material.

作者信息

Song Yun-Mi, Park Hui Gyeong, Lee Jung-Soo

机构信息

Department of Bio-Chemical Engineering, Chosun University, Chosundaegil 146, Dong-gu, Gwangju 61452, Republic of Korea.

出版信息

Materials (Basel). 2024 Sep 21;17(18):4643. doi: 10.3390/ma17184643.

DOI:10.3390/ma17184643
PMID:39336385
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11433207/
Abstract

This study explored the development of hierarchical graphitic carbon structures (HGCs) from harmful inedible seaweed waste harvested in the summer. Elevated sea temperatures during the summer increase the cellulose content of seaweeds, making them unsuitable for consumption. By utilizing seaweed biomass, this study addresses critical marine environmental issues and provides a sustainable solution for promising electrode materials for energy storage devices. The fabrication process involved impregnating seaweed with Ni ions, followed by annealing to create a highly crystalline carbon structure. Subsequent etching produced numerous nano-sized pores and a large surface area (806 m/g), significantly enhancing the number of electrically active sites. The resulting HGCs exhibited a high capacitance and maintained their capacity even after 10,000 cycles in fast-current systems. This innovative approach not only mitigates the environmental burden of seaweed waste but also offers a sustainable method for converting it into efficient energy storage materials.

摘要

本研究探索了利用夏季收获的有害不可食用海藻废料制备分级石墨碳结构（HGCs）。夏季海水温度升高会增加海藻的纤维素含量，使其不适于食用。通过利用海藻生物质，本研究解决了关键的海洋环境问题，并为储能装置中前景广阔的电极材料提供了可持续解决方案。制备过程包括用镍离子浸渍海藻，然后进行退火以形成高度结晶的碳结构。随后的蚀刻产生了大量纳米级孔隙和较大的表面积（806 m/g），显著增加了电活性位点的数量。所得的HGCs表现出高电容，并且即使在快速电流系统中经过10000次循环后仍能保持其容量。这种创新方法不仅减轻了海藻废料的环境负担，还提供了一种将其转化为高效储能材料的可持续方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/147d8f4d4341/materials-17-04643-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/bd5aa5ff18e2/materials-17-04643-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/22326c07d652/materials-17-04643-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/570e6728e2c2/materials-17-04643-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/da79d4a4f689/materials-17-04643-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/6a6972151205/materials-17-04643-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/147d8f4d4341/materials-17-04643-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/bd5aa5ff18e2/materials-17-04643-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/22326c07d652/materials-17-04643-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/570e6728e2c2/materials-17-04643-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/da79d4a4f689/materials-17-04643-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/6a6972151205/materials-17-04643-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9efb/11433207/147d8f4d4341/materials-17-04643-g006.jpg

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