uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
NiFeOx as a Bifunctional Electrocatalyst for Oxygen Reduction (OR) and Evolution (OE) Reaction in Alkaline Media
KTH Royal Inst Technol, Dept Chem Engn, SE-10044 Stockholm, Sweden.
KTH Royal Inst Technol, Dept Chem Engn, SE-10044 Stockholm, Sweden.
KTH Royal Inst Technol, Mat Phys, SCI, S-16440 Kista, Sweden.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Physical Chemistry.ORCID iD: 0000-0003-2046-1229
2018 (English)In: CATALYSTS, ISSN 2073-4344, Vol. 8, no 8, article id 328Article in journal (Refereed) Published
Abstract [en]

This article reports the two-step synthesis of NiFeOx nanomaterials and their characterization and bifunctional electrocatalytic activity measurements in alkaline electrolyte for metal-air batteries. The samples were mostly in layered double hydroxide at the initial temperature, but upon heat treatment, they were converted to NiFe2O4 phases. The electrochemical behaviour of the different samples was studied by linear sweep voltammetry and cyclic voltammetry on the glassy carbon electrode. The OER catalyst activity was observed for low mass loadings (0.125 mg cm(-2)), whereas high catalyst loading exhibited the best performance on the ORR side. The sample heat-treated at 250 degrees C delivered the highest bi-functional oxygen evolution and reduction reaction activity (OER/ORR) thanks to its thin-holey nanosheet-like structure with higher nickel oxidation state at 250 degrees C. This work further helps to develop low-cost electrocatalyst development for metal-air batteries.

Place, publisher, year, edition, pages
MDPI , 2018. Vol. 8, no 8, article id 328
Keywords [en]
Bi-functional catalyst, hydrothermal synthesis, OER/ORR, nickel ferrite, Ni FeLDH
National Category
Other Chemical Engineering Physical Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-363948DOI: 10.3390/catal8080328ISI: 000442517100033OAI: oai:DiVA.org:uu-363948DiVA, id: diva2:1257514
Funder
Swedish Energy Agency, 39078-1Available from: 2018-10-22 Created: 2018-10-22 Last updated: 2018-10-22Bibliographically approved

Open Access in DiVA

fulltext(3674 kB)61 downloads
File information
File name FULLTEXT01.pdfFile size 3674 kBChecksum SHA-512
e3e0008d697d6cc15b88997227062ed42ac8c06ae56fb1b482d09390c82a4414ab8afac84e9884c74c16581c81aa83445b5d6372f4f2b8771fa7020c50491866
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Authority records BETA

Johansson, Malin B

Search in DiVA

By author/editor
Johansson, Malin B
By organisation
Physical Chemistry
Other Chemical EngineeringPhysical Chemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 61 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 86 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf