Diffusion and capacitive controlled surfactant assisted vanadium-doped nickel hydroxide nanostructures for supercapacitor applications

IF 2.4 4区 化学 Q3 CHEMISTRY, PHYSICAL
Ionics Pub Date : 2024-10-21 DOI:10.1007/s11581-024-05890-x
D. B. Mane, D. V. Rupnawar, K. S. Nikam, R. D. Ghatage, P. R. Shedage, S. H. Mujawar, L. D. Kadam, R. V. Dhekale, G. M. Lohar
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引用次数: 0

Abstract

To increase storage capacity of supercapacitor nanomaterials plays an important role. By using different surfactants, it is possible to synthesize nanomaterials. Surfactants have power overgrowth and agglomeration of particles, which control the dimension of the materials. Doping of vanadium contributes to improvement the electric conductivity of nickel hydroxide. Compared with those of cetyltrimethylammonium bromide (CTAB) and ammonium fluoride (NH4F), the restricted specific capacitance of these materials increases due to the use of the sodium lauryl sulphate (SDS) surfactant. The maximum specific capacitance was from a GCD of 2150 F g−1 (1825 mF cm−2) at 3 mA cm−2 and from a CV of 1844 F g−1 at a 10 mV s−1 scan rate. After 1000 charge‒discharge cycles, the electrode shows better stability at almost 95.5% at a scan rate of 100 mV s−1. The diffusion and capacitive-controlled specific capacitance calculated with respect to different surfactants is a key aspect of this work.

扩散和电容控制表面活性剂辅助掺钒氢氧化镍纳米结构在超级电容器中的应用
纳米材料对提高超级电容器的存储容量起着重要的作用。通过使用不同的表面活性剂,可以合成纳米材料。表面活性剂对颗粒的过度生长和团聚有很大的影响,从而控制了材料的尺寸。钒的掺杂有助于提高氢氧化镍的导电性。与十六烷基三甲基溴化铵(CTAB)和氟化铵(NH4F)相比,由于表面活性剂十二烷基硫酸钠(SDS)的使用,这些材料的限制比电容有所提高。在3ma cm - 2下的GCD为2150 F g - 1 (1825 mF cm - 2),在10mv s - 1扫描速率下的CV为1844 F g - 1。在100 mV s−1的扫描速率下,经过1000次充放电循环,电极的稳定性达到95.5%。计算不同表面活性剂的扩散和电容控制的比电容是这项工作的一个关键方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Ionics
Ionics 化学-电化学
CiteScore
5.30
自引率
7.10%
发文量
427
审稿时长
2.2 months
期刊介绍: Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.
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