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Aligned Co3O4–CoOOH heterostructure nanosheet arrays grown on carbon paper with oxygen vacancies for enhanced and robust oxygen evolution
- Source :
- International Journal of Hydrogen Energy. 46:34287-34297
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Developing efficient and stable non-noble metal oxygen evolution reaction (OER) electrocatalysts for sustainable overall water-splitting is extremely desirable but still a great challenge. Herein, we developed a facile strategy to fabricate Co3O4–CoOOH heterostructure nanosheet arrays with oxygen vacancies grown on carbon paper (Co3O4–CoOOH/CP). Benefiting from the unique 3D architecture, large surface area, synergistic effects between Co3O4, CoOOH and oxygen vacancies, the obtained self-supporting Co3O4–CoOOH/CP presents excellent electrocatalytic OER activity (low overpotentials of 245 and 390 mV at 10 and 100 mA cm−2) and robust long-term stability in alkaline condition. The present strategy provides the opportunities for the future rational design and discovery of high-performance non-noble metal based electrocatalysts for advanced water oxidation and beyond.
- Subjects :
- Materials science
business.product_category
Renewable Energy, Sustainability and the Environment
Rational design
Oxygen evolution
Energy Engineering and Power Technology
chemistry.chemical_element
Nanotechnology
Heterojunction
Condensed Matter Physics
Oxygen
Metal
Fuel Technology
chemistry
visual_art
visual_art.visual_art_medium
Carbon paper
business
Nanosheet
Subjects
Details
- ISSN :
- 03603199
- Volume :
- 46
- Database :
- OpenAIRE
- Journal :
- International Journal of Hydrogen Energy
- Accession number :
- edsair.doi...........394c307c84ccd7e1eacd33bfe539d6ef