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Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries.
ChemSusChem 2019; 12(4):873-880C

Abstract

Hollow MoO2 /reduced graphene oxide (MoO2 /rGO) sub-microsphere composites have been fabricated through a simple hydrothermal approach followed by a heat treatment process. When employed as an anode material for potassium-ion batteries, the as-synthesized MoO2 /rGO composite can deliver an initial charge specific capacity of 367.2 mAh g-1 at 50 mA g-1 , and its reversible capacity is 218.9 mAh g-1 after 200 cycles. Even when cycled at 500 mA g-1 , a high charge specific capacity of 104.2 mAh g-1 is achieved after 500 cycles. The excellent cycling capability and rate performance may be ascribed to the synergistic effects of the reduced graphene oxide and the hollow MoO2 spheres, which can increase the electrical conductivity of the composite, as well as resisting the strain arising from the repeated discharge-charge processes. These results indicate that the MoO2 /rGO hollow sphere composites are promising negative electrode materials for potassium-ion batteries.

Authors+Show Affiliations

School of Metallurgy, Northeastern University, Shenyang, 110819, P. R. China. Key Laboratory of Dielectric and Electrolyte Functional Materials, Hebei Province, Qinhuangdao, 066004, P. R. China.School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China. School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, P. R. China. Key Laboratory of Dielectric and Electrolyte Functional Materials, Hebei Province, Qinhuangdao, 066004, P. R. China.School of Metallurgy, Northeastern University, Shenyang, 110819, P. R. China. Key Laboratory of Dielectric and Electrolyte Functional Materials, Hebei Province, Qinhuangdao, 066004, P. R. China.School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China.School of Metallurgy, Northeastern University, Shenyang, 110819, P. R. China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30461212

Citation

Liu, Cailing, et al. "Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries." ChemSusChem, vol. 12, no. 4, 2019, pp. 873-880.
Liu C, Luo S, Huang H, et al. Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries. ChemSusChem. 2019;12(4):873-880.
Liu, C., Luo, S., Huang, H., Zhai, Y., & Wang, Z. (2019). Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries. ChemSusChem, 12(4), pp. 873-880. doi:10.1002/cssc.201802494.
Liu C, et al. Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries. ChemSusChem. 2019 Feb 21;12(4):873-880. PubMed PMID: 30461212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Direct Growth of MoO2 /Reduced Graphene Oxide Hollow Sphere Composites as Advanced Anode Materials for Potassium-Ion Batteries. AU - Liu,Cailing, AU - Luo,Shaohua, AU - Huang,Hongbo, AU - Zhai,Yuchun, AU - Wang,Zhaowen, Y1 - 2019/01/29/ PY - 2018/10/29/received PY - 2018/11/21/revised PY - 2018/11/21/accepted PY - 2018/11/22/pubmed PY - 2018/11/22/medline PY - 2018/11/22/entrez KW - batteries KW - electrochemistry KW - electrodes KW - graphene KW - hollow structures SP - 873 EP - 880 JF - ChemSusChem JO - ChemSusChem VL - 12 IS - 4 N2 - Hollow MoO2 /reduced graphene oxide (MoO2 /rGO) sub-microsphere composites have been fabricated through a simple hydrothermal approach followed by a heat treatment process. When employed as an anode material for potassium-ion batteries, the as-synthesized MoO2 /rGO composite can deliver an initial charge specific capacity of 367.2 mAh g-1 at 50 mA g-1 , and its reversible capacity is 218.9 mAh g-1 after 200 cycles. Even when cycled at 500 mA g-1 , a high charge specific capacity of 104.2 mAh g-1 is achieved after 500 cycles. The excellent cycling capability and rate performance may be ascribed to the synergistic effects of the reduced graphene oxide and the hollow MoO2 spheres, which can increase the electrical conductivity of the composite, as well as resisting the strain arising from the repeated discharge-charge processes. These results indicate that the MoO2 /rGO hollow sphere composites are promising negative electrode materials for potassium-ion batteries. SN - 1864-564X UR - https://www.unboundmedicine.com/medline/citation/30461212/Direct_Growth_of_MoO2_/Reduced_Graphene_Oxide_Hollow_Sphere_Composites_as_Advanced_Anode_Materials_for_Potassium_Ion_Batteries_ L2 - https://doi.org/10.1002/cssc.201802494 DB - PRIME DP - Unbound Medicine ER -