Journal
NANOSCALE ADVANCES
Volume 4, Issue 14, Pages 3101-3108Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2na00333c
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Funding
- Engineering and Physical Sciences Research Council UK [EP/L016648/1, EP/V047701/1]
- Bristol Centre for Functional Nanomaterials
- Royal Society of Chemistry [R20-8172]
- UK Engineering and Physical Sciences Research Council [EP/T517872/1]
- EPSRC [EP/R01650X/1, EP/R011141/1, EP/V048759/1]
- ERC Horizon 2020 programme [715262-HPSuper]
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In this study, nanostructured high-temperature superconductors YBa2Cu3O6+delta and Bi2Sr2CaCu2O8+delta were successfully synthesized using three solution-based approaches with a melamine formaldehyde sponge as a sacrificial template. The modified Pechini method produced YBa2Cu3O6+delta samples with a superconducting transition temperature of 92 K and a specific surface area of 4.22 m(2) g(-1), while Bi2Sr2CaCu2O8+delta samples exhibited superconductivity at 86 K and a specific surface area of 9.62 m(2) g(-1) using the same method. The porosity of the sponges was determined to be 82% for YBa2Cu3O6+delta and 78% for Bi2Sr2CaCu2O8+delta using Hg porosimetry.
Nanostructured high-temperature superconductors YBa2Cu3O6+delta and Bi2Sr2CaCu2O8+delta were synthesised using a melamine formaldehyde sponge as a sacrificial template, via three solution-based approaches. In the case of YBa2Cu3O6+delta, a modified Pechini method produced a material with a superconducting transition at 92 K and a specific surface area of 4.22 m(2) g(-1). Further analysis with Hg porosimetry determined that the sponge exhibited a porosity of 82%. In the case of Bi2Sr2CaCu2O8+delta, this method produced a material that exhibited superconductivity at 86 K with a specific surface area of 9.62 m(2) g(-1). Hg-porosimetry determined that the BSCCO sponge exhibited a porosity of 78%.
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