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Title:ORR stability of Mn–Co/polypyrrole nanocomposite electrocatalysts studied by quasi in-situ identical-location photoelectron microspectroscopy
Authors:Bocchetta, Patrizia (Author)
Aleman, Belen (Author)
Amati, Matteo (Author)
Fanetti, Mattia (Author)
Goldoni, Andrea (Author)
Gregoratti, Luca (Author)
Kiskinova, Maya (Author)
Mele, Claudio (Author)
Sezen, Hikmet (Author)
Bozzini, Benedetto (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The stability of pyrolyzed Mn–Co/polypyrrole (PPy) nanocomposites towards the Oxygen Reduction Reaction (ORR) in alkaline solution, was studied with a close-knit group of complementary microscopic and space-resolved spectroscopic approaches: Atomic Force Microscopy (AFM), Scanning and High-Resolution Transmission Electron Microscopy (SEM, HRTEM) and identical-location Scanning PhotoElectron Microscopy (SPEM). Tracking quasi-in situ the morphochemical evolution of the Mn–Co/PPy catalyst upon electrochemical aging under ORR conditions by this multi-technique approach, has allowed to clarify the key physico-chemical processes underlying the dramatic impact of Co additions to stability improvement.
Keywords:Mixed manganese oxides, Polypyrrole, Oxygen reduction, Electrocatalysis, Nanocomposites, X-ray photoelectron microspectroscopy
Year of publishing:2016
Number of pages:5
Numbering:69, 50
COBISS_ID:4446459 Link is opened in a new window
URN:URN:SI:UNG:REP:YVQ5B4Z5
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Record is a part of a journal

Title:Electrochemistry Communications
Publisher:Elsevier
ISSN:1388-2481
Year of publishing:2016

Secondary language

Language:Undetermined
Keywords:Mixed manganese oxides, Polypyrrole, Oxygen reduction, Electrocatalysis, Nanocomposites, X-ray photoelectron microspectroscopy


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