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Synthesis and caracterization of mesoporous FePO4 as positive electrode materials for lithium batteries

AuthorsSalamani, Amel; Merrouche, Abdallah; Telli, Laid; Gómez-Romero, P. CSIC ORCID ; Caban-Huertas, Zahilia
KeywordsLithium batteries
Positive electrodes
Mesoporous materials
Iron phosphate
Issue Date2018
PublisherSpringer Nature
CitationSurface Engineering and Applied Electrochemistry 54(1): 55-63 (2018)
AbstractMesoporous iron phosphates were synthesized using sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB) as surfactants. The material synthesized in the presence of SDS was not applied as a positive electrode active material of a lithium battery. The results show that the obtained FePO4 has a mesoporous structure with a specific surface area of 70 m2 g−1 and a dominant pore diameter of 3 nm. Those mesoporous were characterized by different microstructural and electrochemical analyzes. Among the materials studied under different conditions, those calcined at 450°C preserve mesoporous structures and exhibit the best electrochemical performance when used as active materials of the positive electrodes of lithium batteries. Effectively, a relatively high specific capacity of 135 and 122 mAh g−1 was registered at C/20 collected experimentally by the samples synthesized in the presence of SDS and CTAB, respectively.
Publisher version (URL)https://doi.org/10.3103/S106837551801012X
Appears in Collections:(CIN2) Artículos
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