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- Title
Convenient Immobilization of Cobalt Corroles on Carbon Nanotubes through Covalent Bonds for Electrocatalytic Hydrogen and Oxygen Evolution Reactions.
- Authors
Li, Hua; Li, Xialiang; Lei, Haitao; Zhou, Guojun; Zhang, Wei; Cao, Rui
- Abstract
Two different methods were used to immobilize Co corroles on carbon nanotubes (CNTs) through covalent bonds. The resulting CNTs engineered with Co corroles were used as electrocatalysts for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in aqueous solutions of pH 0, 7, and 14. For both HER and OER in all solutions, the hybrids obtained by attaching Co corroles on CNTs through amidation coupling showed better performance. This is likely because the large surface area and good electrical conductivity of CNTs can be well preserved during the amidation reaction under mild conditions. Convenient catalyst immobilization: Catalytic amidation coupling under mild conditions is shown to be a simple and straightforward method to graft well‐designed Co corroles on carbon nanotubes through covalent bonds. The resulting hybrid is highly efficient and stable as electrocatalyst for the hydrogen evolution and oxygen evolution reactions in pH 0, 7, and 14 aqueous solutions. This method is also promising for other electrocatalytic applications.
- Subjects
COBALT compounds; CARBON nanotubes; ELECTROCATALYSTS; HYDROGEN evolution reactions; OXYGEN evolution reactions
- Publication
ChemSusChem, 2019, Vol 12, Issue 4, p801
- ISSN
1864-5631
- Publication type
Article
- DOI
10.1002/cssc.201802765