نتایج جستجو برای: membrane electrolysis

تعداد نتایج: 393704  

2009
Teru Yamamoto Kazuo Higashino Takeshi Ohura Takashi Amagai Hiroaki Takemori Takumi Takasuga Yuko Sasaki

Abstract We examined polychlorinated dibenzo-p-dioxin, polychlorinated dibenzofuran (PCDD/Fs) and dioxin-like compounds formation during brine electrolysis with pitch used as the binding agent of graphite electrode. Graphite electrode was used in the past as an industrial process of chlorine production. The level of PCDFs was up to 1,800,000pg/L (28,000pg-TEQ/L) in brine electrolysis with pitch...

2009
I. Dardik

Three electrolysis cells with built-in ultrasonic transmitters were developed by Energetics Technologies. The ultrasonic transmitters induce cavitation in the electrolyte in the vicinity of the palladium cathode for in-situ cleaning and activation of the cathode surface, generation of dislocations, assistance in loading and excitation of the Pd-D system. The ultrasonically assisted electrolysis...

2003
D. ACCOTO

In this paper we present a novel drug delivery device that: 1. is able to release drug in a controllable way (one shot, multiple shots, continuous release); 2. has power requirements compatible with those of standard integrated circuits; 3. can be easily miniaturized. The actuation principle relies on the electrolysis of a waterbased solution that is kept separated from the drug by an elastic m...

ژورنال: طلوع بهداشت یزد 2014
امین, محمد مهدی , جعفری, نگار , فرخ زاده, حسین, فروغی, مریم , هاشمی, حسن,

Introduction: For marketing and selling their products, water-treatment equipment vendors use commercial iron and aluminum electrodes thereby changing the quality of water and increasing soluble and suspended solids in water. Due to the lack of scientific justification for the creation of sludge and discoloration caused by water electrolysis with commercial electrodes, this study aimed to compa...

Journal: :Lab on a chip 2008
Aigars Piruska Sean Branagan Donald M Cropek Jonathan V Sweedler Paul W Bohn

Electrokinetically driven fluid transport was evaluated within three-dimensional hybrid nanofluidic-microfluidic devices incorporating Au-coated nanocapillary array membranes (NCAMs). Gold NCAMs, prepared by electroless gold deposition on polymeric track-etched membranes, were susceptible to gas bubble formation if the interfacial potential difference exceeded approximately 2 V along the length...

ژورنال: سلامت و محیط زیست 2011
جنیدی جعفری, احمد, ختایی, علیرضا, رضایی, عباس, کاشی, گیتی,

Background and objective: The conventional chemical and physical methods for water disinfection include the application of ultraviolet (UV), chlorination, and ozonation. Water disinfection by electrochemical methods has been increasingly carried out recently. The goal of this applied - analytical research is to investigate the removal of E. coli bacteria, as the index of water microbial contami...

2009
W.-S. Zhang

Pre-electrolysis at the boiling point in open Pd|D2O cells is an effective method to activate a palladium cathode, which can produce excess power in subsequent electrolysis in closed systems for several months. The reproducibility is 23/45. Another characteristic of excess heat is the apparent resistance of electrolytic cell changes irreversibly with temperature.

Journal: :Chemical communications 2015
Xiumin Li Guoqing Guan Xiao Du Ji Cao Xiaogang Hao Xuli Ma Ajay D Jagadale Abuliti Abudula

A facile unipolar pulse electrodeposition combined with the thermal oxidation method was applied for fabrication of CuO/Co3O4 composites on carbon electrode for water electrolysis, and it was found that the sea anemone-like one with a 3D hierarchical structure formed at -0.8 V exhibited excellent performance for water electrolysis at a low overpotential with high stability.

2007
J. Dash

Surface studies of 40 μm thick Pd foils after electrolysis in D 2 O / H 2 SO 4 electrolyte for six minutes found inversions in isotopic ratios. Anomalous isotopic ratios were also found on the surface of a 350 μm thick Pd foil after electrolysis in the same electrolyte for 74 hours.

2015
Derek Pletcher Xiaohong Li

This review makes the case for cheaper and more efficient water electrolysis technology. In particular, the potential advantages of zero gap, alkaline water electrolysers based on hydroxide ion conducting membranes are highlighted. Following a brief introduction into the thermodynamics and kinetics of water electrolysis, recent developments in oxygen evolving anodes, hydrogen evolving cathodes ...

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