Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201602122
Keywords
electrospinning; hydrogen evolution reaction; oxygen evolution reaction; perovskite oxide; water splitting
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Funding
- Key Projects in Nature Science Foundation of Jiangsu Province [BK2011030]
- National Nature Science Foundation of China [21576135]
- Major Project of Educational Commission of Jiangsu Province of China [13KJA430004]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- Program for Jiangsu Specially-Appointed Professors
- Youth Fund in Jiangsu Province [BK20150945]
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The development of highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is paramount for water splitting associated with the storage of clean and renewable energy. Here, this study reports its findings in the development of a nanostructured perovskite oxide as OER/HER bifunctional electrocatalyst for overall water splitting. Prepared by a facile electrospinning method, SrNb0.1Co0.7Fe0.2O3- perovskite nanorods (SNCF-NRs) display excellent OER and HER activity and stability in an alkaline solution, benefiting from the catalytic nature of perovskites and unique structural features. More importantly, the SNCF-NR delivers a current density of 10 mA cm(-2) at a cell voltage of merely approximate to 1.68 V while maintaining remarkable durability when used as both anodic and cathodic catalysts in an alkaline water electrolyzer. The performance of this bifunctional perovskite material is among the best ever reported for overall water splitting, offering a cost-effective alternative to noble metal based electrocatalysts.
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