期刊论文

Structural Regulation and Electrochemical Energy Storage of Woodceramic Electrode Assembled with Lignin Based Carbon Nanosheet

中文

材料导报

1005-023X

2021

35

2

2012-2018

10.11896/cldb.19120131

31670572:国家自然科学基金 31270611:国家自然科学基金

本校为第一机构

以杨木基木陶瓷为骨架,采用电沉积法组装黑液木质素,经高温烧结和物理活化制备木质素基碳纳米片组装块状木陶瓷电极,并对序列组装机制、结构与形貌、物相构成、电化学储能机制和电化学性能进行了探讨与分析。结果表明:黑液木质素在电场的作用下可按照一定的序列组装在木陶瓷骨架的表面与孔隙中,高温烧结后木质素转化为碳纳米片,部分依然保持有序排列;同时,所制备的木陶瓷电极主要由无定型炭与石墨微晶构成,具有多层次孔隙,且木质素的组装可优化孔隙结构。其中电沉积10 min、1 000℃保温烧结2 h、180℃活化6 h的试件具有较好的电化学性能:在扫描速率为0.25 A·g-1时比电容可达141.8 F·g-1;充放电...

Blocky woodceramic electrode was prepared by high temperature sintering and physical activation which uses poplar based woodceramics as skeleton and assembled pulping black liquor lignin based carbon nanosheet with electrodeposition method. The electrochemical deposition mechanism, structure and morphology, phase composition, chemical energy storage mechanism and electrochemical performance had been discussed and analyzed. The results showed that pulping black liquor lignin was assembled on the surface and in the pores of woodceramics skeleton ...