期刊论文

Zhang, Xiang(zhangxiang@csuft.edu.cn)

英文

Chemical Engineering Journal

1385-8947

2023

452

139514

10.1016/j.cej.2022.139514

In summary, carbonyl groups and closed micropores are together introduced into bamboo-derived hard carbon materials combining acid pre-treatment and two-step carbonization method and regulated by carbonization temperature. Carbonyl groups can provide extra active sites which are beneficial for reversible sodium adsorption in the sloping region while the closed microvoids promote sodium ion storage in the plateau region. With the increase of carbonization temperature, the reductions of defects

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Hard carbon materials with long low-voltage plateau have been used as the anode materials for sodium ion batteries which are considered to be one of the most potential large-scale energy storage systems. Herein, carbonyl groups and closed micropores are introduced into bamboo-derived hard carbon materials simultaneously to enhance the sodium ion storage performance. The carbonyl groups are demonstrated to enhance the reversible Na adsorption in the sloping region and closed micropores are beneficial to sodium ion storage in the low-voltage plat...