<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Laura C Pardo Pérez</style></author><author><style face="normal" font="default" size="100%">Alexander Arndt</style></author><author><style face="normal" font="default" size="100%">Sasho Stojkovikj</style></author><author><style face="normal" font="default" size="100%">Ibbi Y. Ahmet</style></author><author><style face="normal" font="default" size="100%">Joshua T Arens</style></author><author><style face="normal" font="default" size="100%">Federico Dattila</style></author><author><style face="normal" font="default" size="100%">Robert Wendt</style></author><author><style face="normal" font="default" size="100%">Ana Guilherme Buzanich</style></author><author><style face="normal" font="default" size="100%">Martin Radtke</style></author><author><style face="normal" font="default" size="100%">Veronica Davies</style></author><author><style face="normal" font="default" size="100%">Katja Höflich</style></author><author><style face="normal" font="default" size="100%">Eike Köhnen</style></author><author><style face="normal" font="default" size="100%">Philipp Tockhorn</style></author><author><style face="normal" font="default" size="100%">Ronny Golnak</style></author><author><style face="normal" font="default" size="100%">Jie Xiao</style></author><author><style face="normal" font="default" size="100%">Götz Schuck</style></author><author><style face="normal" font="default" size="100%">Markus Wollgarten</style></author><author><style face="normal" font="default" size="100%">Núria López</style></author><author><style face="normal" font="default" size="100%">Matthew T. Mayer</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Determining Structure‐Activity Relationships in Oxide Derived Cu-Sn Catalysts During CO&lt;sub&gt;2&lt;/sub&gt;Electroreduction Using X‐Ray Spectroscopy</style></title><secondary-title><style face="normal" font="default" size="100%">Advanced Energy Materials</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2022</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://onlinelibrary.wiley.com/doi/full/10.1002/aenm.202103328</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">2103328</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;span&gt;The development of earth-abundant catalysts for selective electrochemical CO&lt;/span&gt;&lt;span&gt;2&lt;/span&gt;&lt;span&gt;conversion is a central challenge. Cu&lt;/span&gt;&lt;span class=&quot;icomoon&quot;&gt;&lt;/span&gt;&lt;span&gt;Sn bimetallic catalysts can yield selective CO&lt;/span&gt;&lt;span&gt;2&lt;/span&gt;&lt;span&gt;reduction toward either CO or formate. This study presents oxide-derived Cu&lt;/span&gt;&lt;span class=&quot;icomoon&quot;&gt;&lt;/span&gt;&lt;span&gt;Sn catalysts tunable for either product and seeks to understand the synergetic effects between Cu and Sn causing these selectivity trends. The materials undergo significant transformations under CO&lt;/span&gt;&lt;span&gt;2&lt;/span&gt;&lt;span&gt;&amp;nbsp;reduction conditions, and their dynamic bulk and surface structures are revealed by correlating observations from multiple methods—X-ray absorption spectroscopy for in situ study, and quasi in situ X-ray photoelectron spectroscopy for surface sensitivity. For both types of catalysts, Cu transforms to metallic Cu&lt;/span&gt;&lt;span&gt;0&lt;/span&gt;&lt;span&gt;&amp;nbsp;under reaction conditions. However, the Sn speciation and content differ significantly between the catalyst types: the CO-selective catalysts exhibit a surface Sn content of 13 at.&amp;nbsp;% predominantly present as oxidized Sn, while the formate-selective catalysts display an Sn content of ≈70 at. % consisting of both metallic Sn&lt;/span&gt;&lt;span&gt;0&lt;/span&gt;&lt;span&gt;&amp;nbsp;and Sn oxide species. Density functional theory simulations suggest that Sn&lt;/span&gt;&lt;span&gt;δ+&lt;/span&gt;&lt;span&gt;&amp;nbsp;sites weaken CO adsorption, thereby enhancing CO selectivity, while Sn&lt;/span&gt;&lt;span&gt;0&lt;/span&gt;&lt;span&gt;&amp;nbsp;sites hinder H adsorption and promote formate production. This study reveals the complex dependence of catalyst structure, composition, and speciation with electrochemical bias in bimetallic Cu catalysts.&lt;/span&gt;&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue></record></records></xml>