摘要
Efficient cathode-catalysts with multi-functional properties are essential for Li-CO_(2)battery,while the construction of them with simultaneously enhanced CO_(2)reduction and evolution kinetics is still challenging.Here,a kind of hybrid nanosheets based on Ru nanoparticles,Fe-TAPP and grapheme oxide(GO)has been designed through a one-pot self-assembly strategy.The Ru,Fe-porphyrin and GO based hybrid nanosheets(denoted as Ru/Fe-TAPP@GO)with integrated multi-components offer characteristics of ultrathin thickness(~4 nm),high electro-redox property,uniformly dispersed morphology,and high electrical conductivity,etc.These features endow Ru/Fe-TAPP@GO with ultra-low overpotential(0.82 V)and fully reversible discharge/charge property with a high specific-capacity of 39,000 m Ah/g within 2.0-4.5 V at 100 m A/g,which are much superior to Ru@GO and Fe-TAPP@GO.The achieved performance was presented as one of the best cathode-catalysts reported to date.The synergistically enhanced activity originated from the integrated hybrid nanosheets may provide a new pathway for designing efficient cathode-catalysts for Li-CO_(2)batteries.
基金
financially supported by the National Natural Science Foundation of China(NSFC,Nos.21871141,21871142,21901122,22071109,22105080,22171139 and 92061101)
the Excellent Youth Foundation of Jiangsu Natural Science Foundation(No.BK20211593)
Priority Academic Program Development of Jiangsu Higher Education Institutions
the Foundation of Jiangsu Collaborative Innovation Center of Biomedical Functional Materials。
