高効率スーパーキャパシタに向けた溶媒分画リグニン由来の高活性電極
Hongmin Pan1, Yuhao Yan1, Daxin Jiang1
1MOE Engineering Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing, 100083, China; Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, 100083, China.
International journal of biological macromolecules
|February 6, 2026
まとめ
ユーカリ材から得られた分画リグニンはスーパーキャパシタの性能を向上させる。アセトン分画リグニンベースのフェノール樹脂炭素材料(ALPFC)は、優れた静電容量と安定性を示し、エネルギー貯蔵材料のためのグリーンな経路を提供する。
科学分野:
- 材料科学;電気化学;グリーンケミストリー
背景:
- リグニンの酸素リッチな官能基はスーパーキャパシタの可能性を高めるが、その不均一性は工業的利用を妨げる。;高度なエネルギー貯蔵のために、持続可能で高性能な電極材料の開発が不可欠である。
研究 の 目的:
- ユーカリ材リグニンの分画を行い、その反応性と加工性を向上させること。;リグニンベースのフェノール樹脂由来炭素材料を合成し、スーパーキャパシタ用途に評価すること。;電気化学的性能を向上させるためにリグニン置換率を最適化すること。
主な方法:
- ユーカリ材リグニンの溶媒抽出および分画。;様々なリグニン置換率を持つリグニンベースのフェノール樹脂炭素材料の合成。;比表面積(BET)および電気化学的性能(静電容量、サイクル安定性)を含む炭素材料の特性評価。
主要な成果:
- 分画によりリグニンの分子量と多分散性が減少し、反応性が向上した。;最適な材料であるALPFC(リグニン置換率40%)は、高い表面積(3210 m²·g⁻¹)と比静電容量(335.5 F/g)を達成した。;ALPFCは優れたサイクル安定性(10,000サイクル後110.88%の維持率)と二電極性能(98.15%の維持率)を示した。
結論:
- 分画リグニンは高性能スーパーキャパシタ電極材料の実行可能な前駆体である。;リグニンベースのフェノール樹脂炭素材料は、従来の材料に代わるグリーンで効率的な代替品を提供する。;本研究は、エネルギー貯蔵用途におけるリグニンの価値化のための持続可能なアプローチを提示する。
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