Cobalt Sulfides Encapsulated in MOF-Derived Carbon Nanotubes for Enhanced Lithium Storage
Cobalt Sulfides Encapsulated in MOF-Derived Carbon Nanotubes for Enhanced Lithium Storage
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将硫化钴封装在 MOF 衍生的碳纳米管中以增强锂存储
DOI：
10.1007/s11664-022-09908-w
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发表时间：
2022-09
影响因子：
2.1
通讯作者：
Yongjun Yuan
中科院分区：
文献类型：
--
作者：
Qinqin Xiong;He Xie;Zexing Xue;Wen Zhang;Donghuang Wang;Xiaoshi Hu;Haiying Qin;Yongjun Yuan
本文以咪唑骨架67（ZIF-67）为前驱体，通过高温处理和金属Co的催化作用，成功制备了CoS 2/碳纳米管（CoS 2/CNTs）复合材料。CoS 2纳米颗粒能有效缩短Li离子的扩散距离，在高电流密度下具有较高的比容量。将CoS 2纳米粒子包裹在由金属有机骨架（MOF）前驱体和尿素原位生成的石墨碳纳米管的头部，不仅提高了导电性，抑制了纳米粒子的聚集和体积膨胀，而且减少了CoS 2/CNTs复合电极表面与电解液之间的不良副反应。得益于结构优势，CoS 2/CNTs复合电极由于高赝电容贡献而提供优异的循环稳定性和倍率性能。该研究拓宽了过渡金属硫化物的设计和应用，促进了二次电池电极的进一步研究。
In this study, CoS2/carbon nanotubes (CoS2/CNTs) composite was successfully synthesized using zeolitic imidazolate framework-67 (ZIF-67) as a precursor through high-temperature treatment and the catalytic effect of metallic Co. CoS2nanoparticles can effectively shorten the diffusion distance of Li ions, resulting in high specific capacity at high current densities. CoS2nanoparticles are well encapsulated into the head of graphitic carbon nanotubes in situ derived from metal–organic framework (MOF) precursor and urea, which not only improves the electrical conductivity, thus inhibiting the aggregation and volume expansion of nanoparticles, but also alleviates adverse side reactions between the CoS2/CNTs composite electrode surface and the electrolyte. Benefiting from structural advantages, the CoS2/CNTs composite electrode delivers excellent cycling stability and rate performance due to high pseudocapacitance contribution. This study broadens the design and application of transition metal sulfides and promotes further research on electrodes of secondary batteries.
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影响因子：
6.2
作者：
Xinrong Cao;Weixing Min;Ping Chen;Dongwei Xu;Dong Liu;Ruiqi Wang
通讯作者：
Xinrong Cao;Weixing Min;Ping Chen;Dongwei Xu;Dong Liu;Ruiqi Wang
影响因子：
6.7
作者：
Yongfeng Yuan;Weijie Zhao;L. Chen;G. Cai;Shao-yi Guo
通讯作者：
Yongfeng Yuan;Weijie Zhao;L. Chen;G. Cai;Shao-yi Guo
DOI：
10.1002/tcr.202200083
发表时间：
2022-06
期刊：
The Chemical Record
影响因子：
--
作者：
Tengfei Zhang;Chen Li-;Fan Wang;A. Noori;M. Mousavi;X. Xia;Yongqi Zhang
通讯作者：
Tengfei Zhang;Chen Li-;Fan Wang;A. Noori;M. Mousavi;X. Xia;Yongqi Zhang
影响因子：
6.6
作者：
Shanshan Li;Yuan Yang;Zhi-Biao Hu;Shuo Li;Fei Ding;Xinxin Xiao;P. Si;J. Ulstrup
通讯作者：
Shanshan Li;Yuan Yang;Zhi-Biao Hu;Shuo Li;Fei Ding;Xinxin Xiao;P. Si;J. Ulstrup
影响因子：
6.2
作者：
Jie Zheng;Changjian He;Xiaochun Li;Ke Wang;Tian Wang;Ruo-xi Zhang;B. Tang;Y. Rui
通讯作者：
Jie Zheng;Changjian He;Xiaochun Li;Ke Wang;Tian Wang;Ruo-xi Zhang;B. Tang;Y. Rui