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Scalable Solution Processing MoS2 Powders with Liquid Crystalline Graphene Oxide for Flexible Freestanding Films with High Areal Lithium Storage Capacity

Journal Article


Abstract


  • © 2019 American Chemical Society. Freestanding flexible electrodes with high areal mass loading are required for the development of flexible high-performance lithium-ion batteries (LIBs). Currently they face the challenge of low mass loading due to the limited concentrations attainable in processable dispersions. Here, we report a simple low-temperature hydrothermal route to fabricate flexible layered molybdenum disulfide (MoS2)/reduced graphene oxide (MSG) films offering high areal capacity and good lithium storage performance. This is achieved using a self-assembly process facilitated by the use of liquid crystalline graphene oxide (LCGO) and commercial MoS2 powders at a low temperature of 70 °C. The amphiphilic properties of ultralarge LCGO nanosheets facilitates the processability of large-size MoS2 powders, which is otherwise nondispersible in water. The resultant film with an areal mass of 8.2 mg cm-2 delivers a high areal capacity of 5.80 mAh cm-2 (706 mAh g-1) at 0.1 A g-1. This simple method can be adapted to similar nondispersible commercial battery materials for films fabrication or production of more complicated constructs via advanced fabrication technologies.

Authors


  •   Chao, Yunfeng (external author)
  •   Wang, Kezhong (external author)
  •   Jalili, Rouhollah (external author)
  •   Morlando, Alexander (external author)
  •   Qin, Chunyan (external author)
  •   Vijayakumar, Amruthalakshmi (external author)
  •   Wang, Caiyun
  •   Wallace, Gordon G.

Publication Date


  • 2019

Citation


  • Chao, Y., Wang, K., Jalili, R., Morlando, A., Qin, C., Vijayakumar, A., Wang, C. & Wallace, G. (2019). Scalable Solution Processing MoS2 Powders with Liquid Crystalline Graphene Oxide for Flexible Freestanding Films with High Areal Lithium Storage Capacity. ACS Applied Materials and Interfaces,

Scopus Eid


  • 2-s2.0-85076276318

Place Of Publication


  • United States

Abstract


  • © 2019 American Chemical Society. Freestanding flexible electrodes with high areal mass loading are required for the development of flexible high-performance lithium-ion batteries (LIBs). Currently they face the challenge of low mass loading due to the limited concentrations attainable in processable dispersions. Here, we report a simple low-temperature hydrothermal route to fabricate flexible layered molybdenum disulfide (MoS2)/reduced graphene oxide (MSG) films offering high areal capacity and good lithium storage performance. This is achieved using a self-assembly process facilitated by the use of liquid crystalline graphene oxide (LCGO) and commercial MoS2 powders at a low temperature of 70 °C. The amphiphilic properties of ultralarge LCGO nanosheets facilitates the processability of large-size MoS2 powders, which is otherwise nondispersible in water. The resultant film with an areal mass of 8.2 mg cm-2 delivers a high areal capacity of 5.80 mAh cm-2 (706 mAh g-1) at 0.1 A g-1. This simple method can be adapted to similar nondispersible commercial battery materials for films fabrication or production of more complicated constructs via advanced fabrication technologies.

Authors


  •   Chao, Yunfeng (external author)
  •   Wang, Kezhong (external author)
  •   Jalili, Rouhollah (external author)
  •   Morlando, Alexander (external author)
  •   Qin, Chunyan (external author)
  •   Vijayakumar, Amruthalakshmi (external author)
  •   Wang, Caiyun
  •   Wallace, Gordon G.

Publication Date


  • 2019

Citation


  • Chao, Y., Wang, K., Jalili, R., Morlando, A., Qin, C., Vijayakumar, A., Wang, C. & Wallace, G. (2019). Scalable Solution Processing MoS2 Powders with Liquid Crystalline Graphene Oxide for Flexible Freestanding Films with High Areal Lithium Storage Capacity. ACS Applied Materials and Interfaces,

Scopus Eid


  • 2-s2.0-85076276318

Place Of Publication


  • United States