کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5349672 | 1503644 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direct synthesis of Co2Al(OH)7â2x(CO3)x·nH2O layered double hydroxide nanolayers by successive ionic layer deposition and their capacitive performance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Direct synthesis of Co2Al(OH)7â2x(CO3)x·nH2O layered double hydroxide nanolayers by successive ionic layer deposition and their capacitive performance Direct synthesis of Co2Al(OH)7â2x(CO3)x·nH2O layered double hydroxide nanolayers by successive ionic layer deposition and their capacitive performance](/preview/png/5349672.png)
چکیده انگلیسی
New method of synthesis of Co2Al(OH)7â2x(CO3)x·nH2O layered double hydroxide (LDH) films by successive ionic layer deposition (SILD) is presented in this paper. The obtained nanolayers were characterized by SEM, EDX, XRD, XPS, FTIR spectroscopy and electrochemical techniques. The results showed that the as-synthesized product is formed by nanosheets with a thickness of 3-5 nm, having hydrotalcite crystal structure. Electrochemical characterization of the sample prepared by 50 cycles of SILD indicated a capacitive behavior with the specific capacitance value of 900 F/g at a current density of 1 A/g and 950 F/g at 0.5 A/g in 1 mol/L KOH aqueous solution. Repeated cycling for 1000 charge-discharge cycles demonstrate that capacitance increases by 6%, so such electrodes may be used as electrodes of hybrid supercapacitors. The presented convenient route of synthesis may be used for the preparation of LDH films with high surface area and a large capacitance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 320, 30 November 2014, Pages 609-613
Journal: Applied Surface Science - Volume 320, 30 November 2014, Pages 609-613
نویسندگان
A.A. Lobinsky, V.P. Tolstoy, L.B. Gulina,