Non-conductive TiO2 as the anode catalyst support for PEM water electrolysis

Mazúr, Petr; Polonský, Jakub; Paidar, Martin; Bouzek, Karel

doi:10.1016/j.ijhydene.2012.05.129

Cited by 121 publications

(96 citation statements)

References 21 publications

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“…It is reported that RuO 2 exhibits poor stability as an anode electrocatalyst for OER which is mainly attributed to the dissolution of active material and formation of high oxidation state Ru oxides . A stability test using RuO 2 and RuO 2 /SnO 2 nanospheres as anode electrocatalysts was performed under galvanostatic mode at 250 mA.cm −2 for 250 h, and the results are shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Lim

Rahman

Chae

et al. 2013

Int. J. Energy Res.

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SUMMARY This work explores the opportunity to reduce the cost and enhance the stability of RuO2 as an oxygen evolution reaction catalyst by coating RuO2 on chemically stable SnO2 support. Nano‐sized RuO2/SnO2 composites of different mass ratios of RuO2 to SnO2 (0.45:1, 0.67:1, and 1.07:1) were synthesized using solution‐based hydrothermal method. The physicochemical properties of the RuO2/SnO2 were studied by scanning electron microscopy, X‐ray diffraction, transmission electron microscopy, and N2 adsorption–desorption isotherms. The electrochemical activity of RuO2/SnO2 as anode electrocatalyst was investigated in a proton exchange membrane (PEM) water electrolysis cell of Pt/C cathode and Nafion membrane. Experimental results showed that RuO2/SnO2 of ratio (1.07:1) exhibit higher electrochemical activity compared to pure RuO2, resulting ~50% reduction of noble metal content. The extended life test of electrocatalysts for 240 h implied that RuO2/SnO2 (1.07:1) significantly improved the stability of electrode in comparison to pure RuO2 in oxygen evolution processes. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Lim

Rahman

Chae

et al. 2013

Int. J. Energy Res.

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“…The content of the solid, ionically conducting phase in the catalytic layer usually varies in the range of 5 to 20 wt.% of catalyst [53][54][55][56][57]. A similar approach is used in the construction of the hightemperature water electrolysis cell [58].…”

Section: Water Electrolysismentioning

confidence: 99%

Membrane electrolysis—History, current status and perspective

Paidar

Фатеев

Bouzek

2016

Electrochimica Acta

291

137

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Please cite this article as: M.Paidar, V.Fateev, K.Bouzek, Membrane electrolysis − history, current status and perspective, Electrochimica Acta http://dx. AbstractThis review is devoted to membrane electrolysis, in particular utilizing ion-selective membranes, as an important part of both existing and emerging industrial electrochemical processes. It aims to provide fundamental information on the history and development, current status and future perspectives of membrane electrolysis. It aims to provide fundamental information on the history and development, current status and future perspectives of membrane electrolysis. An overview of the history of electromembrane processes is given with the focus on brine electrolysis since it is the predominant electrochemical industrial technology utilizing ion-selective membranes. This is followed by a summary of the wide range of hydrogen-based energy conversion processes with different degrees of maturity, i.e. water electrolysis and fuel cells, which promise to become the next generation of major electromembrane processes. The overview of the state-of-the-art is rounded off by a number of smaller-scale processes utilizing ionically conducting solid electrolytes and ion-selective membranes that are already commercially available. The article concludes by considering potential future developments in this exciting field of electrochemistry.

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“…Due to the harsh oxidative conditions at the anode side, those carbon based materials degrade too fast and therefore alternative supporting materials like e.g. TiO 2 , TaC or SiC have been developed (Ito et al 2011;Polonsky et al 2012). Typical PGM contents are currently in the range of <1 mg/cm 2 at the cathode side and about 2-3 mg/ cm 2 at the anode side respectively.…”

Section: Cell Componentsmentioning

confidence: 99%

Water Electrolysis

Lehner¹,

Tichler²,

Steinmüller³

et al. 2014

Power-to-Gas: Technology and Business Models

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This chapter reviews basic aspects of water electrolysis technologies. First, fundamentals of water electrolysis are discussed to give an overview on basic modes of operation, different ways to determine the electrolyzer efficiency and basic aspects of performance optimization strategies. Second the three main water electrolysis technologies, namely the alkaline electrolysis (AEC), the polymer electrolyte membrane electrolysis (PEMEC) and the solid oxide electrolyte electrolysis (SOEC), are described in more detail. The state of the art, typical system setups, operating characteristics, main component materials, technological assets and drawbacks, current and future developments and future challenges of each of the main technologies are discussed. IntroductionThe Greek expression "Lysis" means decomposition and analogous electrolysis describes a decomposition process in which electrical energy is the main driving force for participating chemical reactions. In the case of water electrolysis a voltage and a direct current are applied to water, what causes dissociation of water molecules into the product gases hydrogen and oxygen. Therefore a water electrolyzer is basically an electrochemical device that converts electrical (in some cases also thermal) energy into chemical energy. The storage medium hydrogen is currently of main economic interest.Hydrogen, the simplest and lightest element in the periodic table, is a colorless, odorless, tasteless and nontoxic gas. Hydrogen, with a worldwide annual production of about 55 million metric tons, is primarily an industrial resource used e.g. in ammonia and methanol production, refineries, chemical, electronic, metal, glass and food industry. Around 95 % of all hydrogen is obtained from fossil fuels but just about 4 % are provided by electrolysis to date (Holladay et al. 2009).Hydrogen has a very high energy density by weight (33.3 kWh/kg), which is up to three times larger compared to liquid hydrocarbon based energy carriers. Hydrogen is not an energy source but it is a secondary energy carrier that offers a

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Non-conductive TiO2 as the anode catalyst support for PEM water electrolysis

Cited by 121 publications

References 21 publications

Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Membrane electrolysis—History, current status and perspective

Water Electrolysis

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Non-conductive TiO2 as the anode catalyst support for PEM water electrolysis

Cited by 121 publications

References 21 publications

Highly stable RuO2/SnO2nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Highly stable RuO2/SnO2nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Membrane electrolysis—History, current status and perspective

Water Electrolysis

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Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell

Highly stable RuO₂/SnO₂nanocomposites as anode electrocatalysts in a PEM water electrolysis cell