نتایج جستجو برای: pulse electrodeposition

تعداد نتایج: 94286  

Gd2O3 nanoparticles were prepared by a two–step process; cathodic electrodeposition followed by heat-treatment method. First, Gd(OH)3 nanoparticles was galvanostatically deposited from nitrate bath on the steel substrate by pulse current (PC) mode. The deposition experiments was conducted at a typical on-time and off-time (ton=1ms and toff=1ms) for 60 min. The electrodeposited precursor was the...

A. Nasr-Esfahany and M.Heydarzadeh Sohi,

Zinc-Nickel electrodeposits have been widely adopted for surface treatment of automobile steel sheet for high corrosion resistance. In this work the effect of pulse parameters on the Zn-Ni alloy electrodeposits was investigated. The hardness, thickness, corrosion resistance and composition of deposits thus produced were investigated. The surface topography of the deposits was also observed in S...

Journal: :Nano letters 2012
Guang Zhu Caofeng Pan Wenxi Guo Chih-Yen Chen Yusheng Zhou Ruomeng Yu Zhong Lin Wang

By converting ambient energy into electricity, energy harvesting is capable of at least offsetting, or even replacing, the reliance of small portable electronics on traditional power supplies, such as batteries. Here we demonstrate a novel and simple generator with extremely low cost for efficiently harvesting mechanical energy that is typically present in the form of vibrations and random disp...

Journal: :روش های عددی در مهندسی (استقلال) 0
علیرضا نصر اصفهانی و محمود حیدرزاده سهی a. nasr-esfahany and m.heydarzadeh sohi

zinc-nickel electrodeposits have been widely adopted for surface treatment of automobile steel sheet for high corrosion resistance. in this work the effect of pulse parameters on the zn-ni alloy electrodeposits was investigated. the hardness, thickness, corrosion resistance and composition of deposits thus produced were investigated. the surface topography of the deposits was also observed in s...

2017
Qi Li Shen Tan Linlin Li Yingying Lu Yi He

High energy and safe electrochemical storage are critical components in multiple emerging fields of technologies. Rechargeable lithium-metal batteries are considered to be promising alternatives for current lithium-ion batteries, leading to as much as a 10-fold improvement in anode storage capacity (from 372 to 3860 mAh g-1). One of the major challenges for commercializing lithium-metal batteri...

A. Ramazani, M. Almasi kashi Z. Haji jamali,

NiCu alloy nanowires arrays were embedded into the anodic aluminum oxide (AAO) template by ac-pulse electrodeposition. Different off-time were used in electrolyte with constant concentration of Ni and Cu and acidity of 3. The effect of deposition parameters on alloy contents was investigated by studying the microstructure and magnetic properties of as-deposited NiCu alloy nanowires. Atomic forc...

Journal: :Journal of the Korean Electrochemical Society 2010

Ali Akbar Moghadamnia Atieh Zabihollahpoor, Ghasem Najafpour-Darzi Mostafa Rahimnejad,

Herein, gold nanoparticle had been successfully synthesized through a simple, inexpensive and clean electrochemical technique. Gold nanoparticles were directly deposited on the electrode surface using an electrochemical strategy. Then, the electrochemical deposition parameters (such as applied potential and deposition time) were optimized. 1.1 V and 250 s were applied as the optimal electrodepo...

Journal: :Journal of The Electrochemical Society 2021

This work focuses on the significance of particle's residence time in composite electrodeposition. Ni-SiC were produced using different pulse-reverse (PR) waveforms based average particle diameter (60 nm). The waveform was designed to deposit a metal thickness equivalent during cathodic pulse and strip half anodic pulse. shape modified study its effect codeposition by changing current density p...

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