Matches in SemOpenAlex for { <https://semopenalex.org/work/W2045641934> ?p ?o ?g. }
- W2045641934 endingPage "11897" @default.
- W2045641934 startingPage "11886" @default.
- W2045641934 abstract "Adsorbed sulfur is a poison to the Pt catalysts used in proton exchange membrane fuel cells, but it can be removed by potential cycling. This process is studied for Sx-poisoned nanoscale Pt− and Pt3Co− on Vulcan carbon (Pt/VC and Pt3Co/VC) in perchloric acid electrolyte using the Δμ adsorbate isolation technique for in situ X-ray absorption spectroscopy. The Δμ technique is modified to better distinguish the Δμ signatures for H, O, and Sx on Pt. The resulting Δμ analysis suggests that SO2 on nanoscale Pt is oxidized to bisulfate or sulfate species in two regions, near 1.05 V on the cluster edges of the Pt nanoparticle, and at higher potentials from the Pt(111) faces where oxygen is less strongly bound. The bisulfate or sulfate species desorb from the Pt surface at high potentials due to O(OH) adsorption/replacement and at low potentials due to loss of the Coulomb attraction between the bisulfate anion and the Pt. A similar oxidation process occurs for Sx-poisoned Pt3Co/VC, but at lower potentials because a ligand effect coming from Co shifts the oxidization potential of adsorbed SO2 to lower potentials while pushing OH adsorption to higher potentials. The spectroscopic results give insights into cyclic voltammetry data and are consistent with electrochemical cycling procedures for removing the sulfur." @default.
- W2045641934 created "2016-06-24" @default.
- W2045641934 creator A5005798471 @default.
- W2045641934 creator A5018097840 @default.
- W2045641934 creator A5023680946 @default.
- W2045641934 creator A5025597267 @default.
- W2045641934 creator A5070866060 @default.
- W2045641934 date "2010-06-21" @default.
- W2045641934 modified "2023-10-12" @default.
- W2045641934 title "Resolving Sulfur Oxidation and Removal from Pt and Pt<sub>3</sub>Co Electrocatalysts Using in Situ X-ray Absorption Spectroscopy" @default.
- W2045641934 cites W1508496890 @default.
- W2045641934 cites W1509774331 @default.
- W2045641934 cites W1523220757 @default.
- W2045641934 cites W1563478462 @default.
- W2045641934 cites W1775183869 @default.
- W2045641934 cites W1964457954 @default.
- W2045641934 cites W1965410370 @default.
- W2045641934 cites W1965980754 @default.
- W2045641934 cites W1969360850 @default.
- W2045641934 cites W1978450379 @default.
- W2045641934 cites W1979166837 @default.
- W2045641934 cites W1987876408 @default.
- W2045641934 cites W1991075556 @default.
- W2045641934 cites W1991327114 @default.
- W2045641934 cites W1995297941 @default.
- W2045641934 cites W1998601944 @default.
- W2045641934 cites W2002288632 @default.
- W2045641934 cites W2002336779 @default.
- W2045641934 cites W2002389930 @default.
- W2045641934 cites W2003281484 @default.
- W2045641934 cites W2004204932 @default.
- W2045641934 cites W2007645568 @default.
- W2045641934 cites W2009163408 @default.
- W2045641934 cites W2009952424 @default.
- W2045641934 cites W2015750942 @default.
- W2045641934 cites W2015836654 @default.
- W2045641934 cites W2017917341 @default.
- W2045641934 cites W2019357935 @default.
- W2045641934 cites W2019859812 @default.
- W2045641934 cites W2024685292 @default.
- W2045641934 cites W2025035079 @default.
- W2045641934 cites W2026653428 @default.
- W2045641934 cites W2030497684 @default.
- W2045641934 cites W2030501096 @default.
- W2045641934 cites W2032259951 @default.
- W2045641934 cites W2033886219 @default.
- W2045641934 cites W2034515889 @default.
- W2045641934 cites W2045481240 @default.
- W2045641934 cites W2049191830 @default.
- W2045641934 cites W2050153570 @default.
- W2045641934 cites W2053481631 @default.
- W2045641934 cites W2053824803 @default.
- W2045641934 cites W2054367961 @default.
- W2045641934 cites W2054722195 @default.
- W2045641934 cites W2055111858 @default.
- W2045641934 cites W2060805189 @default.
- W2045641934 cites W2067950428 @default.
- W2045641934 cites W2070227796 @default.
- W2045641934 cites W2072229214 @default.
- W2045641934 cites W2072694114 @default.
- W2045641934 cites W2075449376 @default.
- W2045641934 cites W2076639399 @default.
- W2045641934 cites W2077647530 @default.
- W2045641934 cites W2084595332 @default.
- W2045641934 cites W2084922494 @default.
- W2045641934 cites W2087548575 @default.
- W2045641934 cites W2088991848 @default.
- W2045641934 cites W2094620808 @default.
- W2045641934 cites W2094961395 @default.
- W2045641934 cites W2098269200 @default.
- W2045641934 cites W2115956575 @default.
- W2045641934 cites W2122034546 @default.
- W2045641934 cites W2152278240 @default.
- W2045641934 doi "https://doi.org/10.1021/jp101977g" @default.
- W2045641934 hasPublicationYear "2010" @default.
- W2045641934 type Work @default.
- W2045641934 sameAs 2045641934 @default.
- W2045641934 citedByCount "42" @default.
- W2045641934 countsByYear W20456419342012 @default.
- W2045641934 countsByYear W20456419342013 @default.
- W2045641934 countsByYear W20456419342014 @default.
- W2045641934 countsByYear W20456419342015 @default.
- W2045641934 countsByYear W20456419342016 @default.
- W2045641934 countsByYear W20456419342017 @default.
- W2045641934 countsByYear W20456419342018 @default.
- W2045641934 countsByYear W20456419342020 @default.
- W2045641934 countsByYear W20456419342021 @default.
- W2045641934 countsByYear W20456419342022 @default.
- W2045641934 countsByYear W20456419342023 @default.
- W2045641934 crossrefType "journal-article" @default.
- W2045641934 hasAuthorship W2045641934A5005798471 @default.
- W2045641934 hasAuthorship W2045641934A5018097840 @default.
- W2045641934 hasAuthorship W2045641934A5023680946 @default.
- W2045641934 hasAuthorship W2045641934A5025597267 @default.
- W2045641934 hasAuthorship W2045641934A5070866060 @default.
- W2045641934 hasConcept C113196181 @default.
- W2045641934 hasConcept C125287762 @default.
- W2045641934 hasConcept C147789679 @default.