A 3D Heterostructural Composite Comprising MOF-Derived Ni(OH)2 and NiAl LDH on rGO for Supercapacitors
Zheng Liu , Huifang Lv , Yanli Gong , Yang Zhao , Hualiang Wei , Guanhua Ding , Xiao Zhang , Yu-Lun Chueh , Chunming Gao , Yan Wang
Chinese Journal of Chemistry ›› 2025, Vol. 43 ›› Issue (15) : 1869 -1884.
A 3D Heterostructural Composite Comprising MOF-Derived Ni(OH)2 and NiAl LDH on rGO for Supercapacitors
The development of high-performance cathode materials through rational heterointerface engineering remains pivotal for advancing hybrid supercapacitors (HSCs) technologies. Here, we construct a three-dimensional ternary heterostructure composite Ni(OH)2/NiAl LDH/rGO (N-OH/NA/rG) by sequential integration of metal-organic frameworks (MOF)-derived Ni(OH)2, NiAl LDH and reduced graphene oxide (rGO). The covalent anchoring of NiAl LDH nanosheets on oxygen-functionalized rGO substrates mitigates restacking issues, establishing a conductive network with enhanced charge transfer kinetics. The alkaline etching of Ni-MOF precursors preserves their hierarchical porosity while converting to pseudocapacitive Ni(OH)₂. Synergistic effects among components yield increased active site density, dual charge storage mechanisms, and optimized ion diffusion pathways. The optimized composite achieves a high specific capacitance of 1481.7 F/g at 1A/g, along with excellent rate capability and cycle performance, establishing a new paradigm for designing multi-component heterostructure electrodes through MOF-derived interface engineering. Furthermore, the N-OH/NA/rG//AC HSC device demonstrates a high power density and energy density, coupled with long-term cycle stability, underscoring the substantial potential of N-OH/NA/rG as a cathode material for HSCs.
Graphene oxide / NiAl layered double hydroxides / MOF-derived functional materials / Ni(OH)2 / Heterostructural composite / Supercapacitors
2025 SIOC, CAS, Shanghai, & WILEY-VCH GmbH
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