钆
接触角
超级电容器
电极
材料科学
氧化物
化学工程
光电子学
化学
复合材料
电容
冶金
工程类
物理化学
作者
Deepak Kumar Sahoo,V.D. Patake
出处
期刊:Advanced energy conversion materials
[Universal Wiser Publisher Pte. Ltd]
日期:2024-06-25
卷期号:: 211-223
标识
DOI:10.37256/aecm.5220244792
摘要
Thin films of gadolinium oxide and gadolinium oxide-based electrodes were deposited on a stainless steel substrate employing the successive ionic layer adsorption and reaction (SILAR) method. The X-ray diffraction (XRD) study showed the formation of amorphous material on a substrate and the composition of the material was confirmed by the energy dispersive study (EDS). The water contact angle measurement showed the super-hydrophobic surface of the deposited material. The morphology showed gadolinium oxide resembled finger chip-type morphology while fungus-like and crocodile-back-like morphologies were observed for gadolinium oxide-copper oxide and gadolinium oxide-activated carbon (AC) composite correspondingly. The cyclic voltammetric measurement for supercapacitor application was carried out in a 0.2 M non-aqueous KCl electrolyte. It designated that the gadolinium oxide electrode with 94.22° contact angle had 106.25 F·g-1 specific capacitance. The super capacitance of electrodes was found to be depending on the contact angle concerning composition and morphology. The gadolinium oxide-copper oxide having 156.70° water contact angle possessed a specific capacitance of 52.66 F·g-1 while the gadolinium oxide-AC composite electrode carried 76.20 F·g-1 specific capacitance for 157.49° contact angle.
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