Synthesis and characterization of polyaniline nanofibers as cathode active material for sodium-ion battery

Autor:	James Manuel, Tina T. Salguero, Ramaraja P. Ramasamy
Rok vydání:	2019
Předmět:	Materials science Polyaniline nanofibers Scanning electron microscope General Chemical Engineering Sodium-ion battery 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Interfacial polymerization 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Nanofiber Polyaniline Materials Chemistry Electrochemistry Ammonium persulfate Fourier transform infrared spectroscopy 0210 nano-technology
Zdroj:	Journal of Applied Electrochemistry. 49:529-537
ISSN:	1572-8838 0021-891X
Popis:	Conducting electroactive polymers are promising candidates for next-generation sodium-ion batteries due to their environmentally benign properties, high stability, and low cost. In this work, polyaniline (PANI) nanofibers have been successfully prepared by interfacial polymerization and characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The effect of initiator concentration and interfacial contact area on the yield and surface morphology of PANI nanofibers has been studied. The yield and nanofibrous structure of PANI are found to be directly proportional to the interfacial contact area and the concentration of initiator. PANI nanofibers prepared from 1 M ammonium persulfate (APS) in a container having highest interfacial area of 200 cm2 has the highest yield of 0.9 and uniform nanofibrous structure which is clear from SEM study. Preparation of PANI nanofibers and doping with sodium-ion salt is confirmed by FTIR spectroscopy. Sodium-ion battery prepared with doped PANI delivered a highest discharge capacity value of 112 mAh g−1 at 0.047 mA cm−2 during initial cycling. The rate capability tests indicated that after cycling at different C-rates, the cell regained its initial discharge capacity value of 123 mAh g−1 at 0.047 mA cm−2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6d2ef870c03e54cc5331cf5fa3abd15e https://doi.org/10.1007/s10800-019-01298-y Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.