On the wetting of aluminum and copper surface by tin-lead melts

Kambolov, D. A.; Kashezhev, A. Z.; Kutuev, R. A.; Korotkov, P. K.; Manukyants, A. R.; Ponezhev, M. Kh.; Созаев, В. А.

doi:10.1134/s1027451015020305

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…Thus, the value of the surface tension, an element to explain the wettability by the liquid metals, cannot explain the differences in sensitivity of the studied steel in the three studied liquid metals. Furthermore, generally, similar values of wetting measured on iron surfaces for liquid Pb, LBE and Bi are reported in the literature [43][44][45]. This is due to the resemblance of interactions of Pb and Bi with iron.…”

Section: Discussionsupporting

confidence: 87%

Liquid metal embrittlement sensitivity of the T91 steel in lead, in bismuth and in lead-bismuth eutectic

Serre

Vogt

2020

Journal of Nuclear Materials

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HighlightsStudy of liquid metal embrittlement sensitivity of the martensitic T91 steel by Pb, Bi and LBE The most embrittling liquid metal is LBE, then bismuth while the less one is lead T91 steel loaded in Bi, Pb or LBE presents a ductile behaviour at 300 °C and at 400 °C except in LBE at very slow strain rate According to the temperature and the strain rate, observation of localized brittle fracture surface in presence of LBE and Bi Data availabilityProtocols, test conditions and material characteristics are presented in detail in the text.

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Section: Discussionsupporting

confidence: 87%

Liquid metal embrittlement sensitivity of the T91 steel in lead, in bismuth and in lead-bismuth eutectic

Serre

Vogt

2020

Journal of Nuclear Materials

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“…To check the performance of a pure alloy, the Cu 84 Sn 5 powder derived electrode plate was characterized. XRD measurement (Figure S10) showed the best match with a pure phase of alloy form (Cu 32 Sn) 0.12 according to the literature . The alloy was then tested for CO 2 reduction at −0.6 V vs RHE, and only H 2 was generated (−0.15 mA cm –2 , Figure S10).…”

Section: Resultsmentioning

confidence: 90%

“…XRD measurement (Figure S10) showed the best match with a pure phase of alloy form (Cu 32 Sn) 0.12 according to the literature. 59 The alloy was then tested for CO 2 reduction at −0.6 V vs RHE, and only H 2 was generated (−0.15 mA cm −2 , Figure S10). The Cu 84 Sn 5 alloy exhibited approximately half the current density for H 2 compared with OD-Cu at the same applied potential (compare Figures 1a and S10a).…”

Section: Resultsmentioning

confidence: 97%

Cu–Sn Bimetallic Catalyst for Selective Aqueous Electroreduction of CO₂ to CO

et al. 2016

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ABSTRACT. We report a selective and stable electrocatalyst utilizing non-noble metals consisting of Cu and Sn for the efficient and selective reduction of CO 2 to CO over a wide potential range. The bimetallic electrode was prepared through the electrodeposition of Sn species on the surface of oxide-derived copper (OD-Cu). The Cu surface, when decorated with an optimal amount of Sn, resulted in a Faradaic efficiency (FE) for CO greater than 90% and a current density of −1.0 mA cm −2 at −0.6 V vs. RHE, compared to the CO FE of 63% and −2.1 mA cm −2 for OD-Cu. Excess Sn on the surface caused H 2 evolution with a decreased current density. X-ray diffraction (XRD) suggests the formation of Cu-Sn alloy. Auger electron spectroscopy of the sample surface exhibits zero-valent Cu and Sn after the electrodeposition step. Density functional theory (DFT) calculations show that replacing a single Cu atom with a Sn atom leaves the d-band orbitals mostly unperturbed, signifying no dramatic shifts in the bulk electronic structure. However, the Sn atom discomposes the multi-fold sites on pure Cu, Page 1 of 37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 2 disfavoring the adsorption of H and leaving the adsorption of CO relatively unperturbed. Our catalytic results along with DFT calculations indicate that the presence of Sn on reduced OD-Cu diminishes the hydrogenation capability-i.e., the selectivity towards H 2 and HCOOH-while hardly affecting the CO productivity. While the pristine monometallic surfaces (both Cu and Sn) fail to selectively reduce CO 2 , the Cu-Sn bimetallic electrocatalyst generates a surface that inhibits adsorbed H*, resulting in improved CO FE. This study presents a strategy to provide a low-cost non-noble metals that can be utilized as a highly selective electrocatalyst for the efficient aqueous reduction of CO 2 . ACS Paragon Plus Environment ACS Catalysis

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