Zinc–nickel alloy electrodeposits for water electrolysis

Sheela, G.

doi:10.1016/s0360-3199(01)00170-7

Cited by 93 publications

(29 citation statements)

References 19 publications

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“…Therefore, alloys formed by metals with different electronic distributions are adopted to improve the electrocatalytic activity of electrodes. [159][160][161][162][163][164][165][166][167][168] Santos et al studied hydrogen discharge using platinum-rare earth (Pt-RE) alloys (RE = Ho, Sm, Ce, Dy) and found out that Pt-RE alloys of equiatomic compositions exhibit superior performances than single Pt electrodes. 167,168 Cathodes containing PtMo alloys also presented much higher activities than those containing individual parent metals.…”

Section: Future Trendsmentioning

confidence: 99%

Hydrogen production by alkaline water electrolysis

Santos¹,

Sequeira²,

Figueiredo³

2013

Quím. Nova

391

226

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Recebido em 13/12/12; aceito em 28/5/13; publicado na web em 17/7/13Water electrolysis is one of the simplest methods used for hydrogen production. It has the advantage of being able to produce hydrogen using only renewable energy. To expand the use of water electrolysis, it is mandatory to reduce energy consumption, cost, and maintenance of current electrolyzers, and, on the other hand, to increase their efficiency, durability, and safety. In this study, modern technologies for hydrogen production by water electrolysis have been investigated. In this article, the electrochemical fundamentals of alkaline water electrolysis are explained and the main process constraints (e.g., electrical, reaction, and transport) are analyzed. The historical background of water electrolysis is described, different technologies are compared, and main research needs for the development of water electrolysis technologies are discussed.

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Section: Future Trendsmentioning

confidence: 99%

Hydrogen production by alkaline water electrolysis

Santos¹,

Sequeira²,

Figueiredo³

2013

Quím. Nova

391

226

View full text Add to dashboard Cite

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“…hydrogenation and hydrogenolysis) as well as electrochemical processes, such as the electrolysis of water. [36,37] Skeletal Ni materials have the advantage of being cheap and have a high surface area. However, their characteristic pyrophoricity, hence the great tendency to be oxidized in air with the formation of thick surface-oxide layers and the strong corrosion in acidic conditions, have prevented their effective use in polymer electrolyte membrane fuel cells (PEMFCs) and DMFCs.…”

Section: àmentioning

confidence: 99%

Ethanol Oxidation on Electrocatalysts Obtained by Spontaneous Deposition of Palladium onto Nickel‐Zinc Materials

et al. 2009

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Ni-Zn and Ni-Zn-P alloys supported on Vulcan XC-72 are effective materials for the spontaneous deposition of palladium through redox transmetalation with Pd(IV) salts. The materials obtained, Pd-(Ni-Zn)/C and Pd-(Ni-Zn-P)/C, have been characterized by a variety of techniques. The analytical and spectroscopic data show that the surface of Pd-(Ni-Zn)/C and Pd-(Ni-Zn-P)/C contain very small, highly dispersed, and highly crystalline palladium clusters as well as single palladium sites, likely stabilized by interaction with oxygen atoms from Ni--O moieties. As a reference material, a nanostructured Pd/C material was prepared by reduction of an aqueous solution of PdCl(2)/HCl with ethylene glycol in the presence of Vulcan XC-72. In Pd/C, the Pd particles are larger, less dispersed, and much less crystalline. Glassy carbon electrodes coated with the Pd-(Ni-Zn)/C and Pd-(Ni-Zn-P)/C materials, containing very low Pd loadings (22-25 microg cm(-2)), were studied for the oxidation of ethanol in alkaline media in half cells and provided excellent results in terms of both specific current (as high as 3600 A g(Pd)(-1) at room temperature) and onset potential (as low as -0.6 V vs Ag/AgCl/KCl(sat)).

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“…Ni-based materials have attracted more and more attention due to their good activity for HER and sufficient corrosion resistance in alkaline solutions at considerable low cost [10][11][12][13]. In order to improve the intrinsic catalytic activity, binary or ternary catalytic systems have been deeply studied such as: NiCo [14][15][16][17][18], NiFe [19][20][21][22], NiW [19,23], NiCu [24], NiAl [25], NiZn [26,27].…”

Section: Introductionmentioning

confidence: 99%

Study of the catalytic activity of 3D macroporous Ni and NiMo cathodes for hydrogen production by alkaline water electrolysis

et al. 2016

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Registro de acceso restringido Este recurso no está disponible en acceso abierto por política de la editorial. No obstante, se puede acceder al texto completo desde la Universitat Jaume I o si el usuario cuenta con suscripción. Registre d'accés restringit Aquest recurs no està disponible en accés obert per política de l'editorial. No obstant això, es pot accedir al text complet des de la Universitat Jaume I o si l'usuari compta amb subscripció. Restricted access item This item isn't open access because of publisher's policy. The full--text version is only available from Jaume I University or if the user has a running suscription to the publisher's contents.

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Zinc–nickel alloy electrodeposits for water electrolysis

Cited by 93 publications

References 19 publications

Hydrogen production by alkaline water electrolysis

Hydrogen production by alkaline water electrolysis

Ethanol Oxidation on Electrocatalysts Obtained by Spontaneous Deposition of Palladium onto Nickel‐Zinc Materials

Study of the catalytic activity of 3D macroporous Ni and NiMo cathodes for hydrogen production by alkaline water electrolysis

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