Hybridization of Fe-O in iron doped hydroxyapatite for superior electrochemical charge storage
學年 111
學期 2
出版（發表）日期 2023-06-06
作品名稱 Hybridization of Fe-O in iron doped hydroxyapatite for superior electrochemical charge storage
作品名稱（其他語言）
著者 K. Pannerselvam, A. R warrier, K. T. Kumar, R. Ranjitha, R. Subashchandrabose, Y.C. Huang, K. T. Arul, C. L. Dong, and K. Asokan, R. Jayapalan
單位
出版者
著錄名稱、卷期、頁數 Journal of Molecular Structure 2023, 1291, 135950
摘要 Hydroxyapatite (HAp) is an interesting phosphate candidate with a weak electrical conductivity that can be tuned by doping metal ions to enhance the active sites for electrochemical charge storage. HAp and Fe-doped HAp were prepared by a wet chemical method. On doping, the crystallite size reduces to 9.56 nm. The surface area of 0.01FH (0.01% Fe) is 152.17 m2/g which is ∼3 times higher compared to PH. The 0.01FH sample shows the highest specific capacitance of 351.3 F/g at 30 mA/g. While X-ray photoemission spectroscopy shows the oxidation states of Fe in 2+ and 3+, X-ray absorption indicates (i) the enhancement of unoccupied density of states of Fe, and (ii) reduced interatomic distance of Fe-O in 0.01FH. These results show that the augmentation of surface properties and hybridization of Fe-O and the modification of its local atomic structures are responsible for high electrochemical charge storage in 0.01FH.
關鍵字
語言 en
ISSN 1872-8014; 0022-2860
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 NLD
公開徵稿
出版型式 ,電子版
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機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125744 )