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【教师科研快讯】黄俊杰老师在《Applied Surface Science》上发表学术成果
2021-04-25 16:52   审核人:

20214月9日,我院黄俊杰教授在化学领域重要期刊《Applied Surface Science》(2020年影响因子IF6.182)在线发表题为Spindle-like Ni3(HITP)2 MOFs: Synthesis and Li+ storage mechanism的学术成果(文章链接 https://doi.org/10.1016/j.apsusc.2021.149818)。

论文的通讯作者为黄俊杰教授我校为第一完成单位和通讯单位。本研究合成了梭形结构导电Ni3(HITP)2 MOFs材料,并将其作为储锂材料,实现了优异的储锂性能

Abstract

Metal-organic frameworks (MOFs) with intrinsic pores and redox organic ligands/metallic ions have been viewed as the promising anodes with high capacity in lithium ion batteries (LIBs). However, conventional MOFs faces the disadvantages of poor electron conductivity and weak coordinate bond between organic ligands and central metal ions, inhibiting the application in LIBs. In this study, a conductive MOFs of Ni3(HITP)2 has been fabricated by reacting the strong-field ligand of 2,3,6,7,10,11-hexaiminotriphenylene (HITP) with Ni2+. The as-prepared Ni3(HITP)2 presents the spindle-like shape that are regular arranged by multi-nano fibers. While utilized in LIBs, Ni3(HITP)2 can deliver the reversible capacity of 703 mAh g-1 at 50 mA g-1 with almost no capacity fading. According to the theoretical calculation and XPS results, both amino groups in ligand and Ni2+ ions have participated in the redox reaction during the charge/discharge processes. The superior Li+ storage performance of Ni3(HITP)2 are contributed by the intercalation capacity of the redox groups and capacitance of the molecular pores.

该工作到国家自然科学基金(21875142)经费资助。

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