Matches in SemOpenAlex for { <https://semopenalex.org/work/W2021682693> ?p ?o ?g. }
- W2021682693 endingPage "B1192" @default.
- W2021682693 startingPage "B1192" @default.
- W2021682693 abstract "We report on the polymeric surfactant-assisted synthesis and characterization of highly dispersed, uniformly alloyed Cu-rich bimetallic nanoparticles with Cu contents up to Cu for use as an oxygen reduction reaction (ORR) electrocatalyst at polymer electrolyte membrane fuel cells. Base-metal-rich Pt alloy particles are generally very difficult to prepare as a well-alloyed single-phase material with high dispersion using conventional liquid impregnation/reductive annealing routes. A comparison between the characteristics of alloy particle obtained from a poly(dimethyl-diallyl ammonium) chloride (PDDA) assisted polyol process and a conventional impregnation method shows that the polyol process is able to form single-phase nanoparticles with a very narrow particle size at temperatures below 200°C. We further investigated the electrochemical behavior of Cu-rich electrocatalysts. We demonstrate the formation of highly active ORR catalyst phases from a precursor by selective electrochemical dissolution (dealloying) of Cu. The dealloyed catalyst yields ORR surface-area-specific activities rivaling those of the Pt-rich state-of-the-art electrocatalysts. Based on the severe depletion in Cu near the surface combined with moderate surface area increases, we propose geometric rather than electronic or surface-area effects as the origin of the observed activity enhancement." @default.
- W2021682693 created "2016-06-24" @default.
- W2021682693 creator A5017880706 @default.
- W2021682693 creator A5034066582 @default.
- W2021682693 creator A5067477881 @default.
- W2021682693 creator A5075664119 @default.
- W2021682693 date "2007-01-01" @default.
- W2021682693 modified "2023-10-12" @default.
- W2021682693 title "Synthesis, Dealloying, and ORR Electrocatalysis of PDDA-Stabilized Cu-Rich Pt Alloy Nanoparticles" @default.
- W2021682693 cites W1775183869 @default.
- W2021682693 cites W1883449737 @default.
- W2021682693 cites W1916506438 @default.
- W2021682693 cites W196367672 @default.
- W2021682693 cites W1964341563 @default.
- W2021682693 cites W1967786895 @default.
- W2021682693 cites W1969306769 @default.
- W2021682693 cites W1975633377 @default.
- W2021682693 cites W1976259896 @default.
- W2021682693 cites W1976996138 @default.
- W2021682693 cites W1984420383 @default.
- W2021682693 cites W1989833370 @default.
- W2021682693 cites W1993900031 @default.
- W2021682693 cites W1994540310 @default.
- W2021682693 cites W1997216543 @default.
- W2021682693 cites W1998462051 @default.
- W2021682693 cites W2000371420 @default.
- W2021682693 cites W2001181785 @default.
- W2021682693 cites W2001231467 @default.
- W2021682693 cites W2002799110 @default.
- W2021682693 cites W2008812190 @default.
- W2021682693 cites W2011836898 @default.
- W2021682693 cites W2013741985 @default.
- W2021682693 cites W2015320702 @default.
- W2021682693 cites W2016128738 @default.
- W2021682693 cites W2016355541 @default.
- W2021682693 cites W2017779131 @default.
- W2021682693 cites W2022854313 @default.
- W2021682693 cites W2025404656 @default.
- W2021682693 cites W2031392751 @default.
- W2021682693 cites W2032364562 @default.
- W2021682693 cites W2035986398 @default.
- W2021682693 cites W2039459750 @default.
- W2021682693 cites W2046288610 @default.
- W2021682693 cites W2052258836 @default.
- W2021682693 cites W2055066784 @default.
- W2021682693 cites W2063539139 @default.
- W2021682693 cites W2063802147 @default.
- W2021682693 cites W2067131080 @default.
- W2021682693 cites W2067415689 @default.
- W2021682693 cites W2068035701 @default.
- W2021682693 cites W2068327939 @default.
- W2021682693 cites W2068415881 @default.
- W2021682693 cites W2069023230 @default.
- W2021682693 cites W2069988560 @default.
- W2021682693 cites W2072726072 @default.
- W2021682693 cites W2074207002 @default.
- W2021682693 cites W2077294269 @default.
- W2021682693 cites W2078676180 @default.
- W2021682693 cites W2081802956 @default.
- W2021682693 cites W2084090900 @default.
- W2021682693 cites W2084206095 @default.
- W2021682693 cites W2084525965 @default.
- W2021682693 cites W2084922494 @default.
- W2021682693 cites W2090893015 @default.
- W2021682693 cites W2093869858 @default.
- W2021682693 cites W2102927586 @default.
- W2021682693 cites W2103041413 @default.
- W2021682693 cites W2105533581 @default.
- W2021682693 cites W2109710272 @default.
- W2021682693 cites W2115729799 @default.
- W2021682693 cites W2135702539 @default.
- W2021682693 cites W2152103620 @default.
- W2021682693 cites W2167969229 @default.
- W2021682693 cites W2206954526 @default.
- W2021682693 cites W2269378861 @default.
- W2021682693 cites W24823966 @default.
- W2021682693 cites W2600484844 @default.
- W2021682693 cites W2605375976 @default.
- W2021682693 cites W4238529860 @default.
- W2021682693 cites W4253133555 @default.
- W2021682693 doi "https://doi.org/10.1149/1.2778856" @default.
- W2021682693 hasPublicationYear "2007" @default.
- W2021682693 type Work @default.
- W2021682693 sameAs 2021682693 @default.
- W2021682693 citedByCount "76" @default.
- W2021682693 countsByYear W20216826932012 @default.
- W2021682693 countsByYear W20216826932013 @default.
- W2021682693 countsByYear W20216826932014 @default.
- W2021682693 countsByYear W20216826932015 @default.
- W2021682693 countsByYear W20216826932016 @default.
- W2021682693 countsByYear W20216826932017 @default.
- W2021682693 countsByYear W20216826932018 @default.
- W2021682693 countsByYear W20216826932019 @default.
- W2021682693 countsByYear W20216826932020 @default.
- W2021682693 countsByYear W20216826932021 @default.
- W2021682693 countsByYear W20216826932023 @default.
- W2021682693 crossrefType "journal-article" @default.
- W2021682693 hasAuthorship W2021682693A5017880706 @default.