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Chromium phosphide CrP as highly active and stable electrocatalysts for oxygen electroreduction in alkaline media
dc.contributor.author | Liu, Junfeng |
dc.contributor.author | Yu, Xiaoting |
dc.contributor.author | Du, Ruifeng |
dc.contributor.author | Zhang, Chaoqi |
dc.contributor.author | Zhang, Ting |
dc.contributor.author | Llorca Piqué, Jordi |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
dc.date.accessioned | 2019-11-19T16:43:31Z |
dc.date.available | 2021-11-19T01:31:12Z |
dc.date.issued | 2019-11-05 |
dc.identifier.citation | Liu, 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.issn | 0926-3373 |
dc.identifier.uri | http://hdl.handle.net/2117/172704 |
dc.description.abstract | Catalysts 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.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria química |
dc.subject.lcsh | Electrocatalysis |
dc.subject.other | Metal phosphide |
dc.subject.other | Colloidal synthesis |
dc.subject.other | Electrocatalysis |
dc.subject.other | Oxygen reduction |
dc.title | Chromium phosphide CrP as highly active and stable electrocatalysts for oxygen electroreduction in alkaline media |
dc.type | Article |
dc.subject.lemac | Electrocatàlisi |
dc.contributor.group | Universitat Politècnica de Catalunya. NEMEN - Nanoenginyeria de materials aplicats a l'energia |
dc.identifier.doi | 10.1016/j.apcatb.2019.117846 |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0926337319305922 |
dc.rights.access | Open Access |
local.identifier.drac | 25803260 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Liu, J.; Yu, X.; Du, R.; Zhang, C.; Zhang, T.; Llorca, J. |
local.citation.publicationName | Applied catalysis B. Environmental |
local.citation.volume | 256 |
local.citation.number | 117846 |
local.citation.startingPage | 117846:1 |
local.citation.endingPage | 117846:2 |
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