Comparative investigation of nitrogen species in transition metals incorporated carbon catalysts for the oxygen reduction reaction
SCIE
SCOPUS
- Title
- Comparative investigation of nitrogen species in transition metals incorporated carbon catalysts for the oxygen reduction reaction
- Authors
- JUNG, WONSUK; Kim, Yoongon; Noh, Yuseong; Han, Hyunsu; Park, Sungmin; Lee, Jinwoo; Kim, Won Bae
- Date Issued
- 2018-09
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- The kinetic influences of transition metals (TMs) in non-platinum group metal (non-PGM) catalysts using ethylenediamine-TM (en-TM) complex are studied for the electro-reduction of oxygen. We exhibit that Ni atoms are inefficiently dispersed, which may influence the N doping as evidenced by XPS and elemental maps. High concentrations of N are attributed to the well-dispersed Co and Fe over the carbon. Electrochemical measurements demonstrate that the ORR on Co@NC and Fe@NC catalysts takes place faster than that on NC and Ni@NC catalysts. The correlation between the quaternary-N concentration of species and the onset potential with respect to TMs is investigated.
- Keywords
- Carbon; Electrocatalysts; Electrolytic reduction; Iron compounds; Nickel compounds; Nitrogen; Oxygen; Carbon catalysts; Electro reduction; Electrochemical measurements; Ethylene diamine; Nitrogen species; Onset potential; Oxygen reduction reaction; Quaternary nitrogens; Transition metals
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/94593
- DOI
- 10.1016/j.cplett.2018.07.066
- ISSN
- 0009-2614
- Article Type
- Article
- Citation
- CHEMICAL PHYSICS LETTERS, vol. 708, page. 42 - 47, 2018-09
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.