نتایج جستجو برای: pbo2

تعداد نتایج: 182  

Journal: :Catalysts 2022

A novel three-dimensional network nickel foam/PbO2 combination electrode (PbO2-NF) with high electrochemical degradation efficiency to norfloxacin was successfully fabricated through the electrodeposition of PbO2 on substrate foam. The characterization an PbO2-NF electrode, including surface morphology, elemental components, performance, and stability performed. In oxidation tests, removal (ini...

Journal: :Journal of composites science 2021

α-PbO2 was introduced into the intermediate layer of an electrode to prevent separation electrodeposited and maintain oxidizing power. The resulting Ti/α-PbO2/β-PbO2 composite applied electrochemical decolorization methylene blue (MB) operating conditions for MB with were optimized. morphology, structure, composition, performance Ti/α-PbO2 anode evaluated using scanning electron microscopy (SEM...

2013
HASSAN M. TAMOUS

High oxygen evolution overpotential and inexpensive Ti/Co3O4/PbO2/(SnO2+Sb2O3) and (Ti/(SnO2+Sb2O3) electrodes were investigated in this work. These electrodes were prepared and used as anodes for removal of Reactive Black 5 (RB5) dye in aqueous solution. In some local cases in Palestine, wastewater color was found to be the only problem in meeting local effluent standards. This investigation r...

2013
Michael G. Verde Kyler J. Carroll Ziying Wang Aaron Sathrum Ying Shirley Meng

Here we report on the significant improvements made in the energy efficiency and cycle life of full-cell soluble lead flow batteries (SLFBs). We describe energy efficiency loss mechanisms, particularly in context to the deposition of PbO2 at the positive electrode. The morphology and crystal structure of deposits formed at the positive electrode, under galvanostatic and potentiostatic condition...

Journal: :international journal of environmental research 2015
y. w. yao l. h. cui y. li n. c. yu h. s. dong

the electrocatalytic degradation of methyl orange (mo) on pbo2-tio2 nanocomposite electrodes was studied by cyclic voltammetry and bulk electrolysis. the results reveal that pbo2-tio2 nanocomposite electrodes possess higher oxygen evolution overpotential than pbo2 electrodes and the electrocatalytic degradation of mo on the electrodes is direct oxidation process. the influence of experimental p...

Journal: :Critical care medicine 2014
Fabio Silvio Taccone Fuhong Su Cathy De Deyne Ali Abdellhai Charalampos Pierrakos Xinrong He Katia Donadello Olivier Dewitte Jean-Louis Vincent Daniel De Backer

OBJECTIVE Alterations in cerebral microvascular blood flow may develop during sepsis, but the consequences of these abnormalities on tissue oxygenation and metabolism are not well defined. We studied the evolution of microvascular blood flow, brain oxygen tension (PbO2), and metabolism in a clinically relevant animal model of septic shock. DESIGN Prospective randomized animal study. SETTING...

2014
Gurgen Harutyunyan Harutyun Mangoyan Gagik Mkhoyan

INTRODUCTION It is generally accepted that PbO2 reflects the balance between O2 delivery and consumption (Diringer et al., 2007; Diringer, 2008). However, implementation in the perioperative period of various ventilatory modes using high FiO2 leads to a dramatic and non-physiologic increase in PbO2 with approximating levels of 147 ± 36 mmHg (McLeod et al., 2003). This phenomenon doesn’t correla...

Journal: :Separations 2022

Lead dioxide-based electrodes have shown a great performance in the electrochemical treatment of organic wastewater. In present study, modified PbO2 anodes supported on stainless steel (SS) with titanium oxide interlayer such as SS/TiO2/PbO2 and SS/TiO2/PbO2-10% Boron (B) were prepared by sol–gel spin-coating technique. The morphological structural properties characterized scanning electron mic...

Journal: :Catalysts 2023

Active granule (WC/Co3O4) doping Ti/Sb-SnO2/PbO2 electrodes were successfully synthesized by composite electrodeposition. The as-prepared systematically characterized scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), diffraction (XRD), photoelectron (XPS), electrochemical performance, zeta potential, and accelerated lifetime. It was found that the of active granule...

Journal: :Vietnam Journal of Science and Technology 2022

In this study, PbO2-TiO2 composite was prepared on stainless steel (SS) substrate by cyclic voltammetry (CV) method from mixed solution containing TiO2 sol-gel with size 10 to 50 nm. the electrochemical deposition, nanoparticle will disperse in growing PbO2 coating create composite. These nanoparticles are delivered electrolyte bulk eletrode surface diffusion and migration.The properties of SS/...

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