title: Hierarchical Ternary Carbide Nanoparticle/Carbon Nanotube-Inserted N-Doped Carbon Concave-Polyhedrons for Efficient Lithium and Sodium Storage.
abstract: Here, we report a hierarchical Co3ZnC/carbon nanotube-inserted nitrogen-doped carbon concave-polyhedrons synthesized by direct pyrolysis of bimetallic zeolitic imidazolate framework precursors under a flow of Ar/H2and subsequent calcination for both high-performance rechargeable Li-ion and Na-ion batteries. In this structure, Co3ZnC nanoparticles were homogeneously distributed in in situ growth carbon nanotube-inserted nitrogen-doped carbon concave-polyhedrons. Such a hierarchical structure offers a synergistic effect to withstand the volume variation and inhibit the aggregation of Co3ZnC nanoparticles during long-term cycles. Meanwhile, the nitrogen-doped carbon and carbon nanotubes in the hierarchical Co3ZnC/carbon composite offer fast electron transportation to achieve excellent rate capability. As anode of Li-ion batteries, the electrode delivered a high reversible capacity (∼800 mA h/g at 0.5 A/g), outstanding high-rate capacity (408 mA h/g at 5.0 A/g), and long-term cycling performance (585 mA h/g after 1500 cycles at 2.0 A/g). In Na-ion batteries, the Co3ZnC/carbon composite maintains a stable capacity of 386 mA h/g at 1.0 A/g without obvious decay over 750 cycles and a superior rate capability (∼500, 448, and 415 mA h/g at 0.2, 0.5, and 1.0 A/g, respectively).
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Chen
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Baorui
authors.initials: B
authors.lastname: Cheng
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Renpeng
authors.initials: R
authors.lastname: Chen
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Hongling
authors.initials: H
authors.lastname: Lv
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Guoyin
authors.initials: G
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Yanrong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Lianbo
authors.initials: L
authors.lastname: Ma
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Engineering and Applied Sciences, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Zuoxiu
authors.initials: Z
authors.lastname: Tie
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.
authors.forename: Zhong
authors.initials: Z
authors.lastname: Jin
authors.affiliation: Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing, Jiangsu 210023, China.|Department of Chemistry, Duke University , Durham, North Carolina 27708, United States.
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
keywords: anode materials; lithium storage; metal−organic frameworks; sodium storage; ternary metallic carbides