Thermodynamic calculation and experimental investigation of the surface enrichment of electrochemically activated Al–Me (Sn, In, Zn) alloys

Andreev, Yu. Ya.; Goncharov, A. V.

doi:10.1016/j.electacta.2004.11.022

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…4), the less GB phase is ascribed to the observed higher reaction temperature of 10 wt% and 12 eutectic GB phases. The theory of micro-galvanic cell [32][33][34][35][36] , which is often used to explain Al corrosion in many Al alloys, can be used to interpret the observed phenomenon of reactions. In an Al alloy and water system, Al and another metal will form a micro-galvanic cell when contacting water due to their difference of electrode potential.…”

Section: Performance Of H 2 Generationmentioning

confidence: 99%

Reactivity of Al-rich Alloys with Water Promoted by Liquid Al Grain Boundary Phases

Wang

Chen

et al. 2017

Journal of Materials Science & Technology

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In-Sn alloys were prepared using arc melting technique. Their microstructures were investigated by X-ray diffraction and scanning electron microscope with energy dispersed X-ray. Based on microstructure analysis, the phase constituents of alloys at Al grain boundaries were identified. The melting points of Al grain boundary phases were measured using differential scanning calorimeter. The reactivities of Al-water at different water temperatures indicate that liquid Al grain boundary phases promote Al-water reactions of alloys. The melting points of Al grain boundary phases affect the reaction temperatures of Al-water, leading to different reaction temperatures of alloys. The measured H 2 generation rate and yields of alloys are related to the compositions of alloys. The theory of micro-galvanic cell is used to explain the observed different H 2 generation rates of alloys.

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Section: Performance Of H 2 Generationmentioning

confidence: 99%

Reactivity of Al-rich Alloys with Water Promoted by Liquid Al Grain Boundary Phases

Wang

Chen

et al. 2017

Journal of Materials Science & Technology

View full text Add to dashboard Cite

show abstract

“…The authors of [9] presented data on the surface energy, adsorption, and surface concentration of zinc-aluminium system alloys obtained via ab initio calculations. The equation for the surface composi tion of a zinc-aluminium system was derived using the Gibbs adsorption equation.…”

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confidence: 99%