Effect Of The PH Value Of The Hydrogenation Solution Upon The Phase ...

Academia.edu no longer supports Internet Explorer.

To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.

×Close

Log In

Log in with FacebookLog in with GoogleorEmailPasswordRemember me on this computeror reset password

Enter the email address you signed up with and we'll email you a reset link.

Need an account? Click here to sign up Log InSign Up

• Log In
• Sign Up
• more
• • About
  • Press
  • Blog
  • Papers
  • Terms
  • Privacy
  • Copyright
  • We're Hiring!
  • Help Center
  • less

download

Download Free PDF

Download Free PDFEffect of the pH value of the hydrogenation solution upon the phase transformation of nickel into nickel hydrideMilko Monev

2001, Electrochimica Acta

See full PDFdownloadDownload PDF

Related papers

Electrochemical hydrogen storage and usage aspects: Nickel electrode in acidic electrolyteGuntars Vaivars

Russian Journal of Electrochemistry, 2007

The conditions of electrochemical formation of nickel hydride are investigated. The electrochemical properties of different nickel-based materials (bulk, porous, foamed tapes) are examined to state the hydrogen adsorption/absorption phenomena and possibility to use them as a negative electrode in hydrogen devices (electrolyzers, rechargeable batteries, fuel cells). Surface activation of nickel materials are made by electroplating and etching methods. Thin palladium coating is used to prove the formation of nickel hydride during cathodic charging. Volt-amperometric and kinetic measurements show that not only palladium, but also activated nickel plays important role in the surface activation of electrode materials and promotion of hydrogen absorption in nickel substrate materials.

downloadDownload free PDFView PDFchevron_rightHydride Effect on the Kinetics of the Hydrogen Evolution Reaction on Nickel Cathodes in Alkaline MediaOmar Teschke

Journal of The Electrochemical Society, 1992

downloadDownload free PDFView PDFchevron_rightNi-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effectsUroš Lačnjevac

2012

downloadDownload free PDFView PDFchevron_rightNi–Sn coatings as cathodes for hydrogen evolution in alkaline solutionsUroš Lačnjevac

2013

downloadDownload free PDFView PDFchevron_rightElectrodeposition and characterization of Ni–Sn alloy coatings as cathode material for hydrogen evolution reaction in alkaline solutionsUroš Lačnjevac

2011

downloadDownload free PDFView PDFchevron_rightCorrosion behaviour of the nickel based materials in an alkaline solution for hydrogen evolutionMihajlo Firak

Indian Journal of Chemical Technology, 2017

Experimental investigations on the nickel based materials in the form of foam and solid plate have been performed. Their application as the electrodes material in an alkaline electrolyzer has been studied. Corrosion potential and Tafels parameters are defined using DC methods, and Ohmic resistance of the electrolyte using AC methods. Active surface area of the foam is defined using BET method. Obtained polarizations curves result in decrease in the resistance to charge-transfer during increasing of electrodes overvoltage. A 1500 times larger active surface of foam insured higher hydrogen evolution at the same overvoltage. As long as it is used high concentrated aqueous media of wt 25% potassium hydroxide solution, corrosion stability of used electrodes material is the first priority.

downloadDownload free PDFView PDFchevron_rightNew hydrogen cathodes in acid medium: Case of nickel electrodeposited with heteropolyacids (HPAs)Oumarou SAVADOGO

International Journal of Hydrogen Energy, 1990

downloadDownload free PDFView PDFchevron_rightElectrochemical studies of a nickel electrode for the hydrogen evolution reactionALTAF KHAN

International Journal of Hydrogen Energy, 1995

downloadDownload free PDFView PDFchevron_rightHydrogen evolution on nickel electrode in synthetic tap water – alkaline solutionFrank de Bruijn

Fuel and Energy Abstracts, 2011

The effect of tap water contaminants on the kinetics of the hydrogen evolution reaction on a nickel electrode in 1 mol dm−3 KOH was investigated by galvanostatic polarization and electrochemical impedance spectroscopy techniques. It was found that the tap water contaminants lead to an increase in the overpotential of the hydrogen evolution reaction, especially at low temperatures. The combination of electrochemical techniques, as well as physicochemicals such as SEM and EDAX ones, confirmed that the contaminants are specifically adsorbed and blocked the available electrode surface for the reaction. It was concluded that they do not participate in an electrochemical reaction in the potential region where HER occurs. Besides the short term negative impact on the rate of hydrogen evolution, a 55 h test revealed that the overpotential shows a steady increase over time in presence of tap water contaminants, while in absence of these contaminants the overpotential is constant.► Influence of the contaminants in simulated tap water on the hydrogen evolution. ► The mechanism of the reaction is the same as in purified water. ► Contaminants do not take place in the electrochemical reaction. ► Adsorption of anions on the electrode surface leads to increase of the overpotential. ► Gas phase product is the same as the one obtained from purified water.

downloadDownload free PDFView PDFchevron_rightNickel–cobalt electrodeposited alloys for hydrogen evolution in alkaline mediaAlessandro Dell'Era

International Journal of Hydrogen Energy, 2009

downloadDownload free PDFView PDFchevron_rightSee full PDFdownloadDownload PDF

Loading Preview

Sorry, preview is currently unavailable. You can download the paper by clicking the button above.

Related papers

Improved performance of a metal hydride electrode for nickel/metal hydride batteries through copper-coatingD. Northwood

Surface and Coatings Technology, 2003

downloadDownload free PDFView PDFchevron_rightElectrodeposited, Ni-based, non-noble metal coatings as cathodes for hydrogen evolution in chlor-alkali electrolysisUroš Lačnjevac

2014

downloadDownload free PDFView PDFchevron_rightEffect of Versenium Hydrogensulfate on Properties of Nickel CoatingsMagdalena Regel-Rosocka

Materials

downloadDownload free PDFView PDFchevron_rightStability of non-equilibrium nickel hydrides prepared by low-temperature ion implantationharry bernas

Physica Status Solidi (a), 1981

downloadDownload free PDFView PDFchevron_rightHydrogen-absorbing alloys for the NICKEL–METAL hydride batteryD. Northwood

International Journal of Hydrogen Energy, 1998

downloadDownload free PDFView PDFchevron_rightElectrodeposition and characterization of Ni–MoO2 composite coatings as cathodes for the hydrogen evolution reaction in alkaline solutionUroš Lačnjevac

2013

downloadDownload free PDFView PDFchevron_rightElectrochemical Behavior of Ni-based Alloys for Hydrogen Evolution Reaction in Alkaline Mediamanzo-robledo arturodownloadDownload free PDFView PDFchevron_rightELECTROCHEMICAL PRODUCTION AND CHARACTERIZATION OF Ni-BASED COMPOSITE COATINGS CONTAINING Mo PARTICLESAntoni Budniok

Rev. Adv. Mater. Sci, 2007

downloadDownload free PDFView PDFchevron_rightNi–MoO2 composite cathodes for hydrogen evolution in alkaline solution. Effect of aging of the electrolyte for their electrodepositionUroš Lačnjevac

2013

downloadDownload free PDFView PDFchevron_rightHydrogen discharge on electrodeposited Ni–Mn–Fe coatings in 30 wo kohStephen Arumainathan

International Journal of Hydrogen Energy, 1999

downloadDownload free PDFView PDFchevron_rightEffect of alloys modified by sodium borohydride alkaline solutions on the kinetics of hydrogen evolution reaction at Mm(Ni3.6Co0.7Mn0.4Al0.3)1.15 hydride electrodesRui Lobo

International Journal of Hydrogen Energy, 2010

downloadDownload free PDFView PDFchevron_rightThe hydrogen evolution reaction in acid medium on nickel electrodeposited with PW12O3−40Oumarou SAVADOGO

International Journal of Hydrogen Energy, 1989

downloadDownload free PDFView PDFchevron_rightNi-MoO2 cathodes for hydrogen evolution in alkaline solutions. Effect of the conditions of their electrodepositionUroš Lačnjevac

2013

downloadDownload free PDFView PDFchevron_rightThe hydrogen evolution reaction in an acid medium on nickel electrodeposited with SiW12O 40 4? or SiMo12O 40 4? from electrolytes of various anionic compositionsOumarou SAVADOGO

J Appl Electrochem, 1991

downloadDownload free PDFView PDFchevron_rightThe hydrogen evolution reaction in acid medium on nickel electrodeposited with PW12O403−Oumarou SAVADOGO

International Journal of Hydrogen Energy, 1989

downloadDownload free PDFView PDFchevron_rightElectrochemical measurements of a metal hydride electrode for the Ni/MH batteryD. Northwood

International Journal of Hydrogen Energy, 2000

downloadDownload free PDFView PDFchevron_rightInvestigation of hydrogen evolution on Raney-Nickel composite-coated electrodesAndrzej Lasia

Electrochimica Acta, 1990

downloadDownload free PDFView PDFchevron_rightElectrodeposition of nickel from alkaline NH4OH/NH4Cl buffer solutionsPrzemysław Sanecki

Transactions of Nonferrous Metals Society of China, 2019

downloadDownload free PDFView PDFchevron_rightDeactivation mechanism of nickel cathodes in alkaline mediaI. Torriani

International Journal of Hydrogen Energy, 1994

downloadDownload free PDFView PDFchevron_rightElectrochemical behavior of metal hydridesJanis Kleperis

Journal of Solid State Electrochemistry, 2001

downloadDownload free PDFView PDFchevron_rightThe Cathodic Evolution of Hydrogen on Nickel in Artificial SeawaterIoana Maior

2007

downloadDownload free PDFView PDFchevron_rightStudy of implanted nickel hydride via resistivity and hyperfine interaction experimentsharry bernas

Hyperfine Interactions, 1981

downloadDownload free PDFView PDFchevron_rightRecent progress in hydrogen storage alloys for nickel/metal hydride secondary batteriesliqun Ma

International Journal of Hydrogen Energy, 2009

downloadDownload free PDFView PDFchevron_rightInfluence of Thermal Treatment on the Electrochemical Properties of Ni+Mo Composite Coatings in an Alkaline SolutionAntoni Budniok

Solid State Phenomena, 2015

downloadDownload free PDFView PDFchevron_rightAlloys for hydrogen storage in nickel/hydrogen and nickel/metal hydride batteriesPaul Ananie

Journal of Power Sources, 1994

downloadDownload free PDFView PDFchevron_right

Related topics

EngineeringPhysical sciencesCHEMICAL SCIENCES

• About
• Press
• Blog
• Papers
• Topics
• We're Hiring!
• Help Center

• Find new research papers in:
• Physics
• Chemistry
• Biology
• Health Sciences
• Ecology
• Earth Sciences
• Cognitive Science
• Mathematics
• Computer Science

• Terms
• Privacy
• Copyright
• Academia ©2024