Geng Xiaodong, Jiang Yuqian, Ma Hongting, Zhang Hanwen, Liu Junlin, Zhang Zijian, Peng Cheng, Zhang Jianxin, Zhao Qian, Zhu Nan
Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning116024, China.
Key laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing100190, China.
ACS Appl Mater Interfaces. 2022 Nov 9;14(44):49746-49754. doi: 10.1021/acsami.2c13261. Epub 2022 Oct 30.
Organic compounds have been extensively used as zinc-ion battery (ZIB) cathodes due to their high capacities and outstanding properties. Nevertheless, poor electrical conductivity limits their developments. RGO (reduced graphene oxide) can well interact with organic compounds through π-π stacking for furnishing capacious ion diffusion paths and active sites to enhance conductivity and capacity. Herein, a 1,1'-iminodianthraquinone (IDAQ)/rGO composite is utilized as cathode of ZIBs, demonstrating ultrahigh stability with 96% capacity retention after 5000 cycles. Zn and H synergetic mechanism in IDAQ/rGO has been deeply discussed by analysis and theoretical calculation. Consequently, the structure of IDAQ(H)(Zn) is the most probable product after discharging progress. Prospectively, the IDAQ/rGO material with excellent stability and good performance would provide new insights into designing advanced ZIBs.
有机化合物因其高容量和出色的性能而被广泛用作锌离子电池（ZIB）的阴极。然而，较差的导电性限制了它们的发展。还原氧化石墨烯（RGO）可以通过π-π堆积与有机化合物良好地相互作用，以提供宽敞的离子扩散路径和活性位点，从而提高导电性和容量。在此，1,1'-亚氨基二蒽醌（IDAQ）/RGO复合材料被用作ZIB的阴极，在5000次循环后容量保持率为96%，显示出超高的稳定性。通过分析和理论计算深入探讨了IDAQ/RGO中锌和氢的协同机制。因此，IDAQ(H)(Zn)的结构是放电过程后最可能的产物。前瞻性地，具有优异稳定性和良好性能的IDAQ/RGO材料将为设计先进的ZIB提供新的见解。
