Tags

Type your tag names separated by a space and hit enter

Flexible N doped carbon/bubble-like MoS2 core/sheath framework: Buffering volume expansion for potassium ion batteries.
J Colloid Interface Sci. 2020 Apr 15; 566:427-433.JC

Abstract

Suitable anode materials for potassium ion batteries (KIBs) with high capacity, good reversibility and stable cycling performances are still in large demand. Here, flexible N doped carbon/bubble-like MoS2 core/sheath framework (MoS2/NCS) is prepared as an anode material for potassium ion batteries. The N doped carbon sponge (NCS) skeleton with good conductivity and high surface area guarantees superior rate capability and high stability of MoS2/NCS anode. The chemical bonds (CMo) firmly bridge MoS2 and NCS together, which further ensures MoS2/NCS stable cycling performance. More importantly, volume expansion is greatly buffered during cycling by this unique structure: the voids between bubble-like MoS2 sheath and NCS core can effectively buffer volume expansion generated during potassium intercalation/deintercalation; the enlarged interlayer spacing contribute more space to buffer volume change; the ultrathin nanosheets can shorten the charge diffusion distance and buffer volume change. As a consequence, MoS2/NCS delivers a capacity of 374 mAh g-1 over 200 cycles at 50 mA g-1. Even at 1000 mA g-1, a capacity of 212 mAh g-1 can still be obtained over 1000 cycles. We believe this MoS2/NCS structure will highlight the potential of MoS2 in practical KIBs applications.

Authors+Show Affiliations

School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China. Electronic address: qiyaoyu@bit.edu.cn.CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China. Electronic address: mhe@nanoctr.cn.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing 100191, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32018183

Citation

Suo, Guoquan, et al. "Flexible N Doped Carbon/bubble-like MoS2 Core/sheath Framework: Buffering Volume Expansion for Potassium Ion Batteries." Journal of Colloid and Interface Science, vol. 566, 2020, pp. 427-433.
Suo G, Zhang J, Li D, et al. Flexible N doped carbon/bubble-like MoS2 core/sheath framework: Buffering volume expansion for potassium ion batteries. J Colloid Interface Sci. 2020;566:427-433.
Suo, G., Zhang, J., Li, D., Yu, Q., He, M., Feng, L., Hou, X., Yang, Y., Ye, X., Zhang, L., & Wang, W. A. (2020). Flexible N doped carbon/bubble-like MoS2 core/sheath framework: Buffering volume expansion for potassium ion batteries. Journal of Colloid and Interface Science, 566, 427-433. https://doi.org/10.1016/j.jcis.2020.01.113
Suo G, et al. Flexible N Doped Carbon/bubble-like MoS2 Core/sheath Framework: Buffering Volume Expansion for Potassium Ion Batteries. J Colloid Interface Sci. 2020 Apr 15;566:427-433. PubMed PMID: 32018183.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Flexible N doped carbon/bubble-like MoS2 core/sheath framework: Buffering volume expansion for potassium ion batteries. AU - Suo,Guoquan, AU - Zhang,Jiaqi, AU - Li,Dan, AU - Yu,Qiyao, AU - He,Meng, AU - Feng,Lei, AU - Hou,Xiaojiang, AU - Yang,Yanling, AU - Ye,Xiaohui, AU - Zhang,Li, AU - Wang,Wei Alex, Y1 - 2020/01/30/ PY - 2019/12/01/received PY - 2020/01/18/revised PY - 2020/01/28/accepted PY - 2020/2/6/pubmed PY - 2020/2/6/medline PY - 2020/2/5/entrez KW - Buffering volume expansion KW - Core/sheath framework KW - Flexible N doped carbon KW - MoS(2) KW - Potassium ion batteries SP - 427 EP - 433 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 566 N2 - Suitable anode materials for potassium ion batteries (KIBs) with high capacity, good reversibility and stable cycling performances are still in large demand. Here, flexible N doped carbon/bubble-like MoS2 core/sheath framework (MoS2/NCS) is prepared as an anode material for potassium ion batteries. The N doped carbon sponge (NCS) skeleton with good conductivity and high surface area guarantees superior rate capability and high stability of MoS2/NCS anode. The chemical bonds (CMo) firmly bridge MoS2 and NCS together, which further ensures MoS2/NCS stable cycling performance. More importantly, volume expansion is greatly buffered during cycling by this unique structure: the voids between bubble-like MoS2 sheath and NCS core can effectively buffer volume expansion generated during potassium intercalation/deintercalation; the enlarged interlayer spacing contribute more space to buffer volume change; the ultrathin nanosheets can shorten the charge diffusion distance and buffer volume change. As a consequence, MoS2/NCS delivers a capacity of 374 mAh g-1 over 200 cycles at 50 mA g-1. Even at 1000 mA g-1, a capacity of 212 mAh g-1 can still be obtained over 1000 cycles. We believe this MoS2/NCS structure will highlight the potential of MoS2 in practical KIBs applications. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/32018183/Flexible_N_doped_carbon/bubble_like_MoS2_core/sheath_framework:_Buffering_volume_expansion_for_potassium_ion_batteries_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(20)30125-9 DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.