FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4302391491> ?p ?o ?g. }

• W4302391491 endingPage "1827" @default.
• W4302391491 startingPage "1827" @default.
• W4302391491 abstract "Accumulation of CO 2 in the atmosphere triggers abnormal weather phenomenon through global warming and greenhouse effect. To reduce the CO 2 concentration and its emission, extensive researches for CO 2 capture, storage, and utilization have been conducted. Among them, electrochemical CO 2 conversion is highly promising due to its ambient reaction conditions, high energy efficiency, and facile combination with other renewable energy source. However, because CO 2 is chemically stable, the principal obstacle is to develop suitable catalyst having good catalytic activity, selectivity, and stability. Among various metal candidates, transition and post-transition metals have attracted much attention due to its low-cost, low-toxicity, and intrinsic catalytic property for CO 2 reduction. Since general electrochemical catalysis is highly correlated with mass diffusion, crystal orientation, surface area, and conductivity, manipulating the catalyst structure is an effective method to improve catalytic performance. Furthermore, collaborative studies integrating experimental and theoretical approaches have been conducted for the investigation of CO 2 reduction mechanism and suggestion of a rational design of a CO 2 reduction catalyst. Herein, we developed hierarchical nanostructured Sn, Bi, and Zn electrodes as electrocatalysts for CO 2 reduction to C1 products (e.g., formic acid/formate and carbon monoxide). Various structured catalysts such as Sn dendrite, Bi dendrite, and hexagonal Zn were fabricated by facile electrodeposition methods. The synthesized catalyst electrodes showed highly efficient CO 2 reduction activity in terms of current density, Faradaic efficiency, and more importantly, stable performance during long-term operation. Sn dendrite and Bi dendrite electrodes exhibited a superior formate/formic acid production rates (Sn dendrite: 228.6 mmol h -1 cm -2 at -1.36 V RHE ) and high Faradaic efficiency (Bi dendrite: 90% at -0.73 V RHE ) without any considerable catalytic degradation during 18 h and 12 h of long-term operations, respectively. Furthermore, the hexagonal Zn catalyst showed a high CO selectivity up to ~95% during unprecedented long-time over 30 h. It is worth noted that their high selectivity towards CO 2 reduction is attributed to their local (or chemical) structures. In case of Sn electrode, we found that the native O content on the Sn surface is strongly correlated with the stabilization of reaction intermediate and the formate selectivity. To understand in-depth the factors to affect the CO 2 reduction, we further conducted the theoretical studies about the mechanism of CO 2 conversion to formic acid on various Bi planes such as close-packed and high-index surfaces using density functional theory calculation (DFT). We demonstrated that the most energetically favorable pathway was a path through the formation of oxygen bidentate intermediate (*OCOH) among the three possible pathways for formic acid formation. In addition, it was also revealed that the high-index Bi surfaces exhibited the lower reduction potential than the closed-packed surface of (003) plane. Similarly, in electrochemical analysis using Zn electrodes, it was figured out that Zn (101) facet was favorable to CO formation whereas Zn (002) facet, most stable surface, favors the H 2 evolution during CO 2 electrolysis. Indeed, DFT calculations showed that Zn (101) facet lowers the reduction potential for CO 2 to CO by more effectively stabilizing a *COOH intermediate than Zn (002) facet. Consequently, the coordinately unsaturated sites derived from the nanostructured non-noble metal catalysts can effectively stabilize the reaction intermediate by lowering the energy barrier for its binding to the site. These results may suggest a design principle for further developments in other advanced catalysts as well as in CO 2 reduction. Figure 1" @default.
• W4302391491 created "2022-10-06" @default.
• W4302391491 creator A5025695014 @default.
• W4302391491 creator A5027337024 @default.
• W4302391491 creator A5044553288 @default.
• W4302391491 creator A5052598115 @default.
• W4302391491 creator A5052617164 @default.
• W4302391491 date "2018-04-13" @default.
• W4302391491 modified "2023-10-16" @default.
• W4302391491 title "High Index Non-Noble Metal Electrocatalysts for Electrochemical CO2 Reduction to C1 Products" @default.
• W4302391491 doi "https://doi.org/10.1149/ma2018-01/31/1827" @default.
• W4302391491 hasPublicationYear "2018" @default.
• W4302391491 type Work @default.
• W4302391491 citedByCount "0" @default.
• W4302391491 crossrefType "journal-article" @default.
• W4302391491 hasAuthorship W4302391491A5025695014 @default.
• W4302391491 hasAuthorship W4302391491A5027337024 @default.
• W4302391491 hasAuthorship W4302391491A5044553288 @default.
• W4302391491 hasAuthorship W4302391491A5052598115 @default.
• W4302391491 hasAuthorship W4302391491A5052617164 @default.
• W4302391491 hasConcept C106773901 @default.
• W4302391491 hasConcept C127413603 @default.
• W4302391491 hasConcept C130349721 @default.
• W4302391491 hasConcept C147789679 @default.
• W4302391491 hasConcept C161790260 @default.
• W4302391491 hasConcept C171250308 @default.
• W4302391491 hasConcept C17525397 @default.
• W4302391491 hasConcept C178790620 @default.
• W4302391491 hasConcept C179104552 @default.
• W4302391491 hasConcept C185592680 @default.
• W4302391491 hasConcept C192562407 @default.
• W4302391491 hasConcept C24596552 @default.
• W4302391491 hasConcept C2524010 @default.
• W4302391491 hasConcept C2777379063 @default.
• W4302391491 hasConcept C2780178953 @default.
• W4302391491 hasConcept C33923547 @default.
• W4302391491 hasConcept C42360764 @default.
• W4302391491 hasConcept C512735826 @default.
• W4302391491 hasConcept C52859227 @default.
• W4302391491 hasConcept C84248122 @default.
• W4302391491 hasConceptScore W4302391491C106773901 @default.
• W4302391491 hasConceptScore W4302391491C127413603 @default.
• W4302391491 hasConceptScore W4302391491C130349721 @default.
• W4302391491 hasConceptScore W4302391491C147789679 @default.
• W4302391491 hasConceptScore W4302391491C161790260 @default.
• W4302391491 hasConceptScore W4302391491C171250308 @default.
• W4302391491 hasConceptScore W4302391491C17525397 @default.
• W4302391491 hasConceptScore W4302391491C178790620 @default.
• W4302391491 hasConceptScore W4302391491C179104552 @default.
• W4302391491 hasConceptScore W4302391491C185592680 @default.
• W4302391491 hasConceptScore W4302391491C192562407 @default.
• W4302391491 hasConceptScore W4302391491C24596552 @default.
• W4302391491 hasConceptScore W4302391491C2524010 @default.
• W4302391491 hasConceptScore W4302391491C2777379063 @default.
• W4302391491 hasConceptScore W4302391491C2780178953 @default.
• W4302391491 hasConceptScore W4302391491C33923547 @default.
• W4302391491 hasConceptScore W4302391491C42360764 @default.
• W4302391491 hasConceptScore W4302391491C512735826 @default.
• W4302391491 hasConceptScore W4302391491C52859227 @default.
• W4302391491 hasConceptScore W4302391491C84248122 @default.
• W4302391491 hasIssue "31" @default.
• W4302391491 hasLocation W43023914911 @default.
• W4302391491 hasOpenAccess W4302391491 @default.
• W4302391491 hasPrimaryLocation W43023914911 @default.
• W4302391491 hasRelatedWork W2048280411 @default.
• W4302391491 hasRelatedWork W2099904877 @default.
• W4302391491 hasRelatedWork W2100249702 @default.
• W4302391491 hasRelatedWork W2396861084 @default.
• W4302391491 hasRelatedWork W2666690075 @default.
• W4302391491 hasRelatedWork W2731403089 @default.
• W4302391491 hasRelatedWork W2751548595 @default.
• W4302391491 hasRelatedWork W2801861785 @default.
• W4302391491 hasRelatedWork W3014675736 @default.
• W4302391491 hasRelatedWork W3215785172 @default.
• W4302391491 hasVolume "MA2018-01" @default.
• W4302391491 isParatext "false" @default.
• W4302391491 isRetracted "false" @default.
• W4302391491 workType "article" @default.