The morphology and electrical conductivity are essential toelectrochemical performance of electrode materials in renewableenergy conversion and storage technologies such as fuel cells andsupercapacitors. Here, we explored a facile method to growAg@nickel-cobalt layered double hydroxide (Ag@Ni/Co-LDHs) with3D flower-like microsphere structure. The results show themorphology of Ni/Co-LDHs varies with the introduction of Agspecies. The prepared Ag@Ni/Co-LDHs not only exhibits an openhierarchical structure with high specific capacitance but also showsgood electrical conductivity to support fast electron transport. Benefiting from the unique structural features, these flower-likeAg@Ni/Co-LDHs microspheres have impressive specific capacitanceas high as 1768 F g−1 at 1 A g−1. It can be concluded that engineeringthe structure of the electrode can increase the efficiency of the specificcapacitance as a battery-type electrode for hybrid supercapacitors.
The morphology and electrical conductivity are essential toelectrochemical performance of electrode materials in renewableenergy conversion and storage technologies such as fuel cells andsupercapacitors. Here, we explored a facile method to growAg@nickel-cobalt layered double hydroxide (Ag@Ni/Co-LDHs) with3D flower-like microsphere structure. The results show themorphology of Ni/Co-LDHs varies with the introduction of Agspecies. The prepared Ag@Ni/Co-LDHs not only exhibits an openhierarchical structure with high specific capacitance but also showsgood electrical conductivity to support fast electron transport. Benefiting from the unique structural features, these flower-likeAg@Ni/Co-LDHs microspheres have impressive specific capacitanceas high as 1768 F g−1 at 1 A g−1. It can be concluded that engineeringthe structure of the electrode can increase the efficiency of the specificcapacitance as a battery-type electrode for hybrid supercapacitors.