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α-Fe(2)O(3) hollow meso–microspheres grown on graphene sheets function as a promising counter electrode in dye-sensitized solar cells
Although nanoparticles, nanorods, and nanosheets of α-Fe(2)O(3) on graphene sheets have been synthesized, it remains a challenge to grow 3D α-Fe(2)O(3) nanomaterials with more sophisticated compositions and structures on the graphene sheets. Herein, we demonstrate a facile solvothermal route under c...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9069592/ https://www.ncbi.nlm.nih.gov/pubmed/35527917 http://dx.doi.org/10.1039/c9ra02586c |
Sumario: | Although nanoparticles, nanorods, and nanosheets of α-Fe(2)O(3) on graphene sheets have been synthesized, it remains a challenge to grow 3D α-Fe(2)O(3) nanomaterials with more sophisticated compositions and structures on the graphene sheets. Herein, we demonstrate a facile solvothermal route under controlled conditions to successfully fabricate 3D α-Fe(2)O(3) hollow meso–microspheres on the graphene sheets (α-Fe(2)O(3)/RGO HMM). Attributed to the combination of the catalytic features of α-Fe(2)O(3) hollow meso–microspheres and the high conductivity of graphene, α-Fe(2)O(3)/RGO HMM exhibited promising electrocatalytic performance as a counter electrode in dye-sensitized solar cells (DSSCs). The DSSCs fabricated with α-Fe(2)O(3) HMM displayed high power conversion efficiency of 7.28%, which is comparable with that of Pt (7.71%). |
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