New rationally designed hybrid polypyrrole@SnCoS4as an efficient anode for lithium-ion batteries
| Autor: | Elaheh Bayat, Soheila Javadian, Hussein Gharibi, Nima Dalir, Zohre Parviz |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Nanoparticle chemistry.chemical_element 02 engineering and technology General Chemistry Substrate (electronics) Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Polypyrrole 01 natural sciences Catalysis 0104 chemical sciences Anode chemistry.chemical_compound chemistry Chemical engineering Materials Chemistry Lithium 0210 nano-technology Current density |
| Zdroj: | New Journal of Chemistry. 45:11737-11751 |
| ISSN: | 1369-9261 1144-0546 |
| DOI: | 10.1039/d1nj00503k |
| Popis: | In the current study, the impact of two different substrates was investigated on the improvement in capacities. SnCoS4 nanoparticles were coated on polypyrrole nanotubes (PNT) and pyrolyzed polypyrrole nanotubes (P-PNT) using the facile hydrothermal method. Both anode materials were electrochemically compared to pure nanoparticles in the lithium-ion half-cell. The results of electrochemical analysis introduced the P-PNT–SnCoS4 as an optimum structure with a reversible capacity of 784 mA h g−1 at a current density of 0.2 A g−1 after 200 cycles. This finely-crystallized nanoparticle supported by carbonaceous polypyrrole nanotubes still maintained its capacity (424 mA h g−1) at a higher current density of 4 A g−1, which shows the efficient synergistic contribution of the substrate to buffering the volume changes in Sn-based anodes. We can conclude that binary metal sulfides supported by 3D polymer-based substrates have great potential for application as promising anode materials in future lithium-ion batteries (LIBs). |
| Databáze: | OpenAIRE |
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