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000642962 1001_ $$0P:(DE-H253)PIP1097412$$aHazelnis, Joshua P.$$b0
000642962 245__ $$aIn Situ X-ray Scattering Studies of the Interface Structure of Liquid Hg–In Electrodes in Aqueous Solution
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000642962 520__ $$aThe interfacial liquid metal/electrolyte structure for liquid Hg–In alloy electrodes immersed in aqueous sodium tetraborate solution was probed by in situ X-ray reflectivity. X-ray reflectivity data were collected for three different Hg–In alloys that spanned Hg- and In-rich compositions: Hg0.35In0.65, Hg0.50In0.50, and Hg0.95In0.05. The interfaces of these liquid metals with borate electrolyte were studied under potential control between −1.00 and −1.40 V vs E(Ag/AgCl). For all Hg–In alloy compositions, the data suggest Hg surface enrichment at levels inconsistent with predictions from the Gibbs adsorption theorem for an ideal solution. Instead, the surface concentrations of Hg estimated from the fits of the X-ray reflectivity data indicate a large negative enthalpy of mixing in the Hg–In system at all applied potentials. In addition, the reflectivity data as well as scattering measurements at small incident angles suggest a complex atomic arrangement at the surfaces of alloys with high In content, manifesting in increased spacings and microscopic roughness of the topmost atomic layer.
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000642962 7001_ $$aSartori, Andrea$$b1
000642962 7001_ $$0P:(DE-H253)PIP1097413$$aWu, Henry$$b2
000642962 7001_ $$0P:(DE-H253)PIP1024065$$aGiri, Rajendra P.$$b3
000642962 7001_ $$0P:(DE-H253)PIP1008122$$aMurphy, Bridget$$b4
000642962 7001_ $$0P:(DE-H253)PIP1010347$$aMagnussen, Olaf$$b5
000642962 7001_ $$0P:(DE-H253)PIP1027119$$aMaldonado, Stephen$$b6$$eCorresponding author
000642962 773__ $$0PERI:(DE-600)2256522-X$$a10.1021/acs.jpcc.5c03466$$gVol. 129, no. 32, p. 14378 - 14389$$n32$$p14378 - 14389$$tThe journal of physical chemistry / C$$v129$$x1932-7447$$y2025
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