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Al-Ce co-doped BaTiO3 nanofibers as a high-performance bifunctional electrochemical supercapacitor and water-splitting electrocatalyst.
- Source :
- Scientific Reports; 4/29/2024, Vol. 14 Issue 1, p1-17, 17p
- Publication Year :
- 2024
-
Abstract
- Supercapacitors and water splitting cells have recently played a key role in offering green energy through converting renewable sources into electricity. Perovskite-type electrocatalysts such as BaTiO<subscript>3</subscript>, have been well-known for their ability to efficiently split water and serve as supercapacitors due to their high electrocatalytic activity. In this study, BaTiO<subscript>3</subscript>, Al-doped BaTiO<subscript>3</subscript>, Ce-doped BaTiO<subscript>3</subscript>, and Al-Ce co-doped BaTiO<subscript>3</subscript> nanofibers were fabricated via a two-step hydrothermal method, which were then characterized and compared for their electrocatalytic performance. Based on the obtained results, Al-Ce co-doped BaTiO<subscript>3</subscript> electrode exhibited a high capacitance of 224.18 Fg<superscript>−1</superscript> at a scan rate of 10 mVs<superscript>−1</superscript>, high durability during over the 1000 CV cycles and 2000 charge–discharge cycles, proving effective energy storage properties. Additionally, the onset potentials for OER and HER processes were 11 and − 174 mV vs. RHE, respectively, demonstrating the high activity of the Al-Ce co-doped BaTiO<subscript>3</subscript> electrode. Moreover, in overall water splitting, the amount of the overpotential was 0.820 mV at 10 mAcm<superscript>−2</superscript>, which confirmed the excellent efficiency of the electrode. Hence, the remarkable electrocatalytic performance of the Al-Ce co-doped BaTiO<subscript>3</subscript> electrode make it a promising candidate for renewable energy technologies owing to its high conductivity and fast charge transfer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20452322
- Volume :
- 14
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Scientific Reports
- Publication Type :
- Academic Journal
- Accession number :
- 176994493
- Full Text :
- https://doi.org/10.1038/s41598-024-54561-4