نتایج جستجو برای: activation overpotential
تعداد نتایج: 428729 فیلتر نتایج به سال:
Amorphous alloys can be electrodeposited by direct or pulsed current. According to electrocrystallization theory, a high crystallization overpotential produces microcrystalline structure in the deposits. Thus if the amorphous phase consists of microcrystals, pulsed current is preferable for preparing amorphous alloys. However, another newly proposed theory holds that the amorphous phase structu...
objectives: major depression and anxiety disorders are common psychiatric disorders among cancer patients and are associated with psychosocial impairment and decreased quality of life. depressed and anxious cancer patients also experience a more rapid progression of cancer symptoms, increased mortality, more metastasis and pain, and increased medical utilization. although some research has expl...
The experimental charge and discharge profiles of a LiCoO2 electrode show that the overpotential of the electrode does not change much during alvanostatic charge, but changes significantly during galvanostatic discharge. Semi-empirical porous electrode models are presented to simulate he charge and discharge profiles of the LiCoO2 electrode. The symmetry factor is empirically assumed to decreas...
Herein, the synthesis of MoTe2 nanosheets by means Atomic Layer Deposition (ALD) is demonstrated for first time. ALD enables tight control over thickness and composition deposited material, which are highly appealing features nanostructure fabrication. The growth was studied on substrates different nature, including TiO2 nanotube (TNT) layers used as active supporting material fabricating hiera...
It has been well recognized that the surface reconstruction of electrocatalysts at initial stage in form phase transitions, defect migrations, valence regulations, etc., plays a critical role generating real, active catalytic centers and achieving steady reactions. is also expected low activation energy barrier for initiating crucial rapid stable electrochemical catalysis. Despite this, kinetic...
A nonlinear phase-field model has been developed for describing the electrodeposition process in electrochemical systems that are highly out of equilibrium. Main thermodynamic driving forces for the electrode-electrolyte interface (EEI) evolution are limited to local variations of overpotential and ion concentration. Application of the model to Li-ion batteries describes the electrode interface...
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