FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2004025529> ?p ?o ?g. }

• W2004025529 endingPage "86" @default.
• W2004025529 startingPage "71" @default.
• W2004025529 abstract "Potent catalysis by Ru electrodes has been reported by various workers. Reported here are studies of chemisorption, surface vibrational spectroscope and electrochemical reactivity at Ru(001) single-crystal electrode surfaces. Electrochemical oxidation of methane on these Ru electrode surfaces in aqueous electrolytes was investigated. The influence of surface oxide and electrodeposited silver on methane oxidation were explored. Immersion of Ru(001) into pure water at open circuit forms a layer of adsorbed hydrous oxides with an ordered (2 × 2) structure as measured by Auger spectroscopy and low energy electron diffraction (LEED). Anodization of Ru(001) in 1 M HClO4 produces a disordered Ru O/OH film consisting of several atomic layers. The high resolution energy electron loss spectrum of this O/OH layer exhibits RuO and OH stretching bands, and the layer is not removed by subsequent electrolysis at negative potentials. Various submonolayer and multiple-layer amounts of silver were electrodeposited on Ru(001). A continuous film is formed, based upon attenuation of the substrate Auger signal. The silver layer lacks long-range order, as judged by LEED. Under the present conditions, namely Ru(001) single-crystal surfaces with or without the O/OH and/or silver layers in aqueous electrolytes, the faradaic current due to oxidation of methane is generally less than 1 μA cm−2. Experiments were performed with Ru(001) surfaces brought to an atomically clean ordered state by Ar+ ion bombardment and annealing in UHV. Immersion of Ru(001) into water at open circuit formed a submonolayer of oxide/hydroxide with an ordered (2 × 2) structure and HREELS vibrational bands attributable to RuO and OH libration and traces of adsorbed CO. Cyclic voltammetry of Ru(001) in aqueous KF and HClO4 electrolytes illustrated the substantial irreversibility of oxide formation—reduction and the near reversibility of hydrogen adsorption—desorption. Electrochemical oxidation of CH4 in 10 mM KF electrolyte at pH 3 produced an increase in current density equal to 1 μA cm−2 at potentials between − 0.1 and 0.2 V vs. Ag/AgCl. Electrodeposition of Ag onto the bare Ru(001) surface did not alter the current density for CH4 oxidation significantly. Electrochemical oxidation of the Ru(001) surface to form a (1 × 1) oxide/hydroxide layer decreased the activity of the surface for anodic oxidation of CH4 in aqueous KF electrolyte. Electrodeposition of a fractional monolayer or multilayer of Ag onto the electrochemically pre-oxidized surface did not detectably influence the rate of CH4 electrochemical oxidation. The clearly demonstrated catalytic activity of metal-doped Ru oxide electrodes [1–4] is all the more intriguing in the light of the present results which suggest that the observed catalytic behavior is not due primarily to the metallic Ru surface, layers of adsorbed oxide on Ru or electrodeposited metallic Ag." @default.
• W2004025529 created "2016-06-24" @default.
• W2004025529 creator A5030423540 @default.
• W2004025529 creator A5039189082 @default.
• W2004025529 creator A5040994609 @default.
• W2004025529 creator A5061340957 @default.
• W2004025529 date "1993-08-01" @default.
• W2004025529 modified "2023-10-17" @default.
• W2004025529 title "Studies of Ru(001) electrodes in aqueous electrolytes containing silver ions and methane: LEED, HREELS, Auger spectroscopy and electrochemistry" @default.
• W2004025529 cites W132489783 @default.
• W2004025529 cites W1541543671 @default.
• W2004025529 cites W157456496 @default.
• W2004025529 cites W1979366830 @default.
• W2004025529 cites W1993963768 @default.
• W2004025529 cites W2003973805 @default.
• W2004025529 cites W2007704294 @default.
• W2004025529 cites W2042094914 @default.
• W2004025529 cites W2044247119 @default.
• W2004025529 cites W2049333637 @default.
• W2004025529 cites W2063651745 @default.
• W2004025529 cites W2066830172 @default.
• W2004025529 cites W2072426885 @default.
• W2004025529 cites W2078363688 @default.
• W2004025529 cites W2081288965 @default.
• W2004025529 cites W2116356970 @default.
• W2004025529 cites W4232340138 @default.
• W2004025529 doi "https://doi.org/10.1016/0022-0728(93)80325-c" @default.
• W2004025529 hasPublicationYear "1993" @default.
• W2004025529 type Work @default.
• W2004025529 sameAs 2004025529 @default.
• W2004025529 citedByCount "11" @default.
• W2004025529 crossrefType "journal-article" @default.
• W2004025529 hasAuthorship W2004025529A5030423540 @default.
• W2004025529 hasAuthorship W2004025529A5039189082 @default.
• W2004025529 hasAuthorship W2004025529A5040994609 @default.
• W2004025529 hasAuthorship W2004025529A5061340957 @default.
• W2004025529 hasConcept C113196181 @default.
• W2004025529 hasConcept C121332964 @default.
• W2004025529 hasConcept C147789679 @default.
• W2004025529 hasConcept C150394285 @default.
• W2004025529 hasConcept C17525397 @default.
• W2004025529 hasConcept C179104552 @default.
• W2004025529 hasConcept C184651966 @default.
• W2004025529 hasConcept C185544564 @default.
• W2004025529 hasConcept C185592680 @default.
• W2004025529 hasConcept C25442681 @default.
• W2004025529 hasConcept C33790079 @default.
• W2004025529 hasConcept C43617362 @default.
• W2004025529 hasConcept C52859227 @default.
• W2004025529 hasConceptScore W2004025529C113196181 @default.
• W2004025529 hasConceptScore W2004025529C121332964 @default.
• W2004025529 hasConceptScore W2004025529C147789679 @default.
• W2004025529 hasConceptScore W2004025529C150394285 @default.
• W2004025529 hasConceptScore W2004025529C17525397 @default.
• W2004025529 hasConceptScore W2004025529C179104552 @default.
• W2004025529 hasConceptScore W2004025529C184651966 @default.
• W2004025529 hasConceptScore W2004025529C185544564 @default.
• W2004025529 hasConceptScore W2004025529C185592680 @default.
• W2004025529 hasConceptScore W2004025529C25442681 @default.
• W2004025529 hasConceptScore W2004025529C33790079 @default.
• W2004025529 hasConceptScore W2004025529C43617362 @default.
• W2004025529 hasConceptScore W2004025529C52859227 @default.
• W2004025529 hasIssue "1-2" @default.
• W2004025529 hasLocation W20040255291 @default.
• W2004025529 hasOpenAccess W2004025529 @default.
• W2004025529 hasPrimaryLocation W20040255291 @default.
• W2004025529 hasRelatedWork W1595097099 @default.
• W2004025529 hasRelatedWork W1969933858 @default.
• W2004025529 hasRelatedWork W1995357258 @default.
• W2004025529 hasRelatedWork W2029863829 @default.
• W2004025529 hasRelatedWork W2030051899 @default.
• W2004025529 hasRelatedWork W2077368247 @default.
• W2004025529 hasRelatedWork W2085400404 @default.
• W2004025529 hasRelatedWork W2086745015 @default.
• W2004025529 hasRelatedWork W2087001615 @default.
• W2004025529 hasRelatedWork W2392600080 @default.
• W2004025529 hasVolume "354" @default.
• W2004025529 isParatext "false" @default.
• W2004025529 isRetracted "false" @default.
• W2004025529 magId "2004025529" @default.
• W2004025529 workType "article" @default.