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dc.contributor.authorLiu, Junfeng
dc.contributor.authorYu, Xiaoting
dc.contributor.authorDu, Ruifeng
dc.contributor.authorZhang, Chaoqi
dc.contributor.authorZhang, Ting
dc.contributor.authorLlorca Piqué, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2019-11-19T16:43:31Z
dc.date.available2021-11-19T01:31:12Z
dc.date.issued2019-11-05
dc.identifier.citationLiu, J. [et al.]. Chromium phosphide CrP as highly active and stable electrocatalysts for oxygen electroreduction in alkaline media. "Applied catalysis B. Environmental", 5 Novembre 2019, vol. 256, núm. 117846, p. 117846:1-117846:2.
dc.identifier.issn0926-3373
dc.identifier.urihttp://hdl.handle.net/2117/172704
dc.description.abstractCatalysts for oxygen reduction reaction (ORR) are key components in emerging energy technologies such as fuel cells and metal-air batteries. Developing low-cost, high performance and stable electrocatalysts is critical for the extensive implementation of these technologies. Herein, we present a procedure to prepare colloidal chromium phosphide CrP nanocrystals and we test their performance as ORR electrocatalyst. CrP-based catalysts exhibited remarkable activities with a limiting current density of 4.94¿mA¿cm-2 at 0.2¿V, a half-potential of 0.65¿V and an onset potential of 0.8¿V at 1600¿rpm, which are comparable to commercial Pt/C. Advantageously, CrP-based catalysts displayed much higher stabilities and higher tolerances to methanol in alkaline solution. Using density functional theory calculations, we demonstrate CrP to provide a very strong chemisorption of O2 that facilitates its reduction and explains the excellent ORR performance experimentally demonstrated.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshElectrocatalysis
dc.subject.otherMetal phosphide
dc.subject.otherColloidal synthesis
dc.subject.otherElectrocatalysis
dc.subject.otherOxygen reduction
dc.titleChromium phosphide CrP as highly active and stable electrocatalysts for oxygen electroreduction in alkaline media
dc.typeArticle
dc.subject.lemacElectrocatàlisi
dc.contributor.groupUniversitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia
dc.identifier.doi10.1016/j.apcatb.2019.117846
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0926337319305922
dc.rights.accessOpen Access
local.identifier.drac25803260
dc.description.versionPostprint (author's final draft)
local.citation.authorLiu, J.; Yu, X.; Du, R.; Zhang, C.; Zhang, T.; Llorca, J.
local.citation.publicationNameApplied catalysis B. Environmental
local.citation.volume256
local.citation.number117846
local.citation.startingPage117846:1
local.citation.endingPage117846:2


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