Composite Metal Oxide-Carbon Nanotube Electrocatalysts for the Oxygen Evolution and Oxygen Reduction Reactions

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Wenjing Luo
  • Jiaxin Wang
  • Jun Hu
  • Yuanchun Ji
  • Carsten Streb
  • Yu-Fei Song
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000446066100019&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1002/celc.201800680
Externe Identifier
  • Clarivate Analytics Document Solution ID: GV4JV
ISSN
2196-0216
Ausgabe der Veröffentlichung
19
Zeitschrift
CHEMELECTROCHEM
Schlüsselwörter
  • Catalysis
  • electrochemistry
  • oxygen evolution reaction
  • oxygen reduction reaction
  • transition metals
Paginierung
2850 - 2856
Datum der Veröffentlichung
2018
Status
Published
Titel
Composite Metal Oxide-Carbon Nanotube Electrocatalysts for the Oxygen Evolution and Oxygen Reduction Reactions
Sub types
  • Article
Ausgabe der Zeitschrift
5

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Abstract
<jats:title>Abstract</jats:title><jats:p>Electrocatalysts capable of performing both the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) are key components for energy technologies including fuel cells, and water electrolysis. High‐performance catalysts based on earth abundant components are therefore a prime research theme. Herein, we report the development of a series of novel composites based on nanostructured iron‐doped CoWO<jats:sub>4</jats:sub> particles electrically linked to conductive carbon nanotubes (CNTs) using a facile one‐pot hydrothermal method. It is shown that tuning of the iron content of Co<jats:sub>1–x</jats:sub>Fe<jats:sub>x</jats:sub>WO<jats:sub>4</jats:sub>−CNT composites (x=0–1) allows structural and reactivity control. The Co<jats:sub>1–x</jats:sub>Fe<jats:sub>x</jats:sub>WO<jats:sub>4</jats:sub>−CNT composites are active and stable OER and ORR electrocatalysts, and follow the Sabatier principle. For Co<jats:sub>0.5</jats:sub>Fe<jats:sub>0.5</jats:sub>WO<jats:sub>4</jats:sub>−CNT, minimum overpotentials of η=290 mV and low Tafel slopes of 42 mV dec<jats:sup>−1</jats:sup> are achieved at a current density of <jats:italic>j</jats:italic>=10 mA cm<jats:sup>−2</jats:sup> for OER, and the Co<jats:sub>0.5</jats:sub>Fe<jats:sub>0.5</jats:sub>WO<jats:sub>4</jats:sub>−CNT shows high catalytic activity for ORR with half‐wave potential of 0.74 V. As such, the composites show high potential as OER and ORR electrocatalysts, so that technologically viable, noble‐metal‐free, tunable electrocatalysts with relevance for alkaline water electrolysis can be designed from the bottom up.</jats:p>
Autoren
  • Wenjing Luo
  • Jiaxin Wang
  • Jun Hu
  • Yuanchun Ji
  • Carsten Streb
  • Yu‐Fei Song
DOI
10.1002/celc.201800680
eISSN
2196-0216
ISSN
2196-0216
Ausgabe der Veröffentlichung
19
Zeitschrift
ChemElectroChem
Sprache
en
Online publication date
2018
Paginierung
2850 - 2856
Datum der Veröffentlichung
2018
Status
Published
Herausgeber
Wiley
Herausgeber URL
http://dx.doi.org/10.1002/celc.201800680
Datum der Datenerfassung
2023
Titel
Composite Metal Oxide‐Carbon Nanotube Electrocatalysts for the Oxygen Evolution and Oxygen Reduction Reactions
Ausgabe der Zeitschrift
5

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