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Synthesis of porous high-temperature superconductors via a melamine formaldehyde sacrificial template.

ABSTRACT: Nanostructured high-temperature superconductors YBa₂Cu₃O_6+δ and Bi₂Sr₂CaCu₂O_8+δ were synthesised using a melamine formaldehyde sponge as a sacrificial template, via three solution-based approaches. In the case of YBa₂Cu₃O_6+δ , a modified Pechini method produced a material with a superconducting transition at 92 K and a specific surface area of 4.22 m² g^-1. Further analysis with Hg porosimetry determined that the sponge exhibited a porosity of 82%. In the case of Bi₂Sr₂CaCu₂O_8+δ , this method produced a material that exhibited superconductivity at 86 K with a specific surface area of 9.62 m² g^-1. Hg-porosimetry determined that the BSCCO sponge exhibited a porosity of 78%.

SUBMITTER: Luke EJ

PROVIDER: S-EPMC9418839 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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Synthesis of porous high-temperature superconductors via a melamine formaldehyde sacrificial template.

Luke Emily J EJ Potticary Jason J Terry Lui R LR Doan Huan V HV Hinoplen Roemer R Cross Sam S Ting Valeska P VP Friedemann Sven S Hall Simon R SR

Nanoscale advances 20220616 14

Nanostructured high-temperature superconductors YBa2Cu3O6+δ and Bi2Sr2CaCu2O8+δ were synthesised using a melamine formaldehyde sponge as a sacrificial template, via three solution-based approaches. In the case of YBa2Cu3O6+δ , a modified Pechini method produced a material with a superconducting transition at 92 K and a specific surface area of 4.22 m2</su ...[more]

PMID: 36133523

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