| Title |
Li-Storage Performances of Copperl-Phenylalanine Complex Nanosheets Anode Derived from Waste Copper Etchant |
| ID_Doc |
22068 |
| Authors |
Yao, Y; Hou, HY; Liu, XX; Meng, K; Qiu, JX; Wang, L; Zhu, J |
| Title |
Li-Storage Performances of Copperl-Phenylalanine Complex Nanosheets Anode Derived from Waste Copper Etchant |
| Year |
2020 |
| Published |
Waste And Biomass Valorization, 11.0, 12 |
| Abstract |
In this work, copperl-phenylalanine (abbreviated as Cu(L-Phe)(2)) complex was extracted from the waste acid Cu-printed-circuit-board (Cu-PCB) etchant via a one-step facile liquid phase precipitate reaction for the first time. The corresponding application feasibility in lithium-ion battery (LIB) and the electrochemical Li-storage mechanism were also explored. The resultant Cu(L-Phe)(2)complex displayed a nanosheet-like morphology with 200 nm in thickness. When it was used as the anode active material of LIB, the reversible discharge specific capacities were 231.1 mAh/g at 100 mA/g and 47.2 mAh/g at 5 A/g, respectively. Furthermore, with the help of surfactant sodium dodecyl sulfate (SDS), Cu(L-Phe)(2)complex nanosheets rearranged into the orderly flower-like cluster with a diameter of 13 mu m; correspondingly, the reversible discharge specific capacities also increased to about 278.8 mAh/g and 108.8 mAh/g, respectively, implying higher reversibility and cycle performance. Seemingly, orderly flower-like nanosheets clusters with the hierarchical structure may facilitate to modify the electrochemical Li-storage capacity of Cu(L-Phe)(2)complex anode. Clearly, the satisfactory results may open a new path to develop the circular economy mode of acid waste Cu-PCB etchant, which is very important for environmental protection and sustainable development. Graphic |
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