Matches in SemOpenAlex for { <https://semopenalex.org/work/W4200102367> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W4200102367 endingPage "354" @default.
- W4200102367 startingPage "346" @default.
- W4200102367 abstract "Buffers are often employed as electrolytes for their ability to resist to pH changes. Still, they are not just spectators in the electrocatalytic processes, rather they may take a primary role. Here, we attempt to understand the mechanism of the hydrogen evolution reaction (HER) in bicarbonate-containing electrolytes on two distinct materials, Au and Pt. Keeping the bulk pH constant, voltammetric measurements reveal a promotional effect on the HER rate in the presence of bicarbonate buffer, as well as a substantial change in the reaction mechanism with a Tafel Slope in bicarbonate resembling the one in acidic media (ca. 100 and 40 mVdec−1 on Au and Pt, respectively). Nevertheless, because of the increase in surface pH due to the concomitant water reduction (2H2O + 2e−→ H2 + 2 OH−), bicarbonate is consumed by acid-base reactions and the bicarbonate branch of HER becomes significant only in the presence of large bulk buffer concentrations. Bicarbonate and water reduction appear intrinsically different, as they exhibit opposite dependence on the cation identity and scale differently with the specific area of the electrode. Through microkinetic modelling, we exclude that HER in bicarbonate can be explained via the generation of a proton by solution acid-base reactions. Rather, we suggest a direct bicarbonate reduction pathway, which, due to the negatively charged reactant, is strongly dependent on the cation concentration." @default.
- W4200102367 created "2021-12-31" @default.
- W4200102367 creator A5020475062 @default.
- W4200102367 creator A5028485156 @default.
- W4200102367 creator A5052489135 @default.
- W4200102367 date "2022-01-01" @default.
- W4200102367 modified "2023-10-18" @default.
- W4200102367 title "Understanding hydrogen evolution reaction in bicarbonate buffer" @default.
- W4200102367 cites W1973938002 @default.
- W4200102367 cites W1984749553 @default.
- W4200102367 cites W2025955722 @default.
- W4200102367 cites W2063078736 @default.
- W4200102367 cites W2079456080 @default.
- W4200102367 cites W2165638161 @default.
- W4200102367 cites W2277124349 @default.
- W4200102367 cites W2336959805 @default.
- W4200102367 cites W2410039023 @default.
- W4200102367 cites W2601810133 @default.
- W4200102367 cites W2805871080 @default.
- W4200102367 cites W2921826364 @default.
- W4200102367 cites W2948327777 @default.
- W4200102367 cites W2953798946 @default.
- W4200102367 cites W2968691008 @default.
- W4200102367 cites W3000007926 @default.
- W4200102367 cites W3005814135 @default.
- W4200102367 cites W3136978146 @default.
- W4200102367 cites W3142425067 @default.
- W4200102367 cites W3159892069 @default.
- W4200102367 cites W3204445493 @default.
- W4200102367 cites W3211537653 @default.
- W4200102367 doi "https://doi.org/10.1016/j.jcat.2021.12.012" @default.
- W4200102367 hasPublicationYear "2022" @default.
- W4200102367 type Work @default.
- W4200102367 citedByCount "15" @default.
- W4200102367 countsByYear W42001023672022 @default.
- W4200102367 countsByYear W42001023672023 @default.
- W4200102367 crossrefType "journal-article" @default.
- W4200102367 hasAuthorship W4200102367A5020475062 @default.
- W4200102367 hasAuthorship W4200102367A5028485156 @default.
- W4200102367 hasAuthorship W4200102367A5052489135 @default.
- W4200102367 hasBestOaLocation W42001023671 @default.
- W4200102367 hasConcept C115900902 @default.
- W4200102367 hasConcept C147789679 @default.
- W4200102367 hasConcept C161790260 @default.
- W4200102367 hasConcept C172404476 @default.
- W4200102367 hasConcept C17525397 @default.
- W4200102367 hasConcept C178790620 @default.
- W4200102367 hasConcept C179104552 @default.
- W4200102367 hasConcept C185592680 @default.
- W4200102367 hasConcept C2781112554 @default.
- W4200102367 hasConcept C52859227 @default.
- W4200102367 hasConcept C68801617 @default.
- W4200102367 hasConceptScore W4200102367C115900902 @default.
- W4200102367 hasConceptScore W4200102367C147789679 @default.
- W4200102367 hasConceptScore W4200102367C161790260 @default.
- W4200102367 hasConceptScore W4200102367C172404476 @default.
- W4200102367 hasConceptScore W4200102367C17525397 @default.
- W4200102367 hasConceptScore W4200102367C178790620 @default.
- W4200102367 hasConceptScore W4200102367C179104552 @default.
- W4200102367 hasConceptScore W4200102367C185592680 @default.
- W4200102367 hasConceptScore W4200102367C2781112554 @default.
- W4200102367 hasConceptScore W4200102367C52859227 @default.
- W4200102367 hasConceptScore W4200102367C68801617 @default.
- W4200102367 hasFunder F4320321800 @default.
- W4200102367 hasLocation W42001023671 @default.
- W4200102367 hasLocation W42001023672 @default.
- W4200102367 hasOpenAccess W4200102367 @default.
- W4200102367 hasPrimaryLocation W42001023671 @default.
- W4200102367 hasRelatedWork W1948261477 @default.
- W4200102367 hasRelatedWork W1987939491 @default.
- W4200102367 hasRelatedWork W2030662955 @default.
- W4200102367 hasRelatedWork W2040614964 @default.
- W4200102367 hasRelatedWork W2320747222 @default.
- W4200102367 hasRelatedWork W2375405251 @default.
- W4200102367 hasRelatedWork W2399767030 @default.
- W4200102367 hasRelatedWork W2800969195 @default.
- W4200102367 hasRelatedWork W3182411634 @default.
- W4200102367 hasRelatedWork W910358966 @default.
- W4200102367 hasVolume "405" @default.
- W4200102367 isParatext "false" @default.
- W4200102367 isRetracted "false" @default.
- W4200102367 workType "article" @default.