{"created":"2025-02-21T04:01:58.098974+00:00","id":2007754,"links":{},"metadata":{"_buckets":{"deposit":"4280d725-a4f0-474b-8e9d-2710ff6cc1b5"},"_deposit":{"created_by":41,"id":"2007754","owners":[41],"pid":{"revision_id":0,"type":"depid","value":"2007754"},"status":"published"},"_oai":{"id":"oai:hiroshima.repo.nii.ac.jp:02007754","sets":["1730444907710"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_title":"Macroporous Structures of Nb–SnO2 Particles as a Catalyst Support Induce High Porosity and Performance in Polymer Electrolyte Fuel Cell Catalyst Layers","subitem_title_language":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hirano, Tomoyuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"Hirano","familyNameLang":"en"}],"givenNames":[{"givenName":"Tomoyuki","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tsuboi, Takama","creatorNameLang":"en"}],"familyNames":[{"familyName":"Tsuboi","familyNameLang":"en"}],"givenNames":[{"givenName":"Takama","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ho, Thi Thanh Nguyen","creatorNameLang":"en"}],"familyNames":[{"familyName":"Ho","familyNameLang":"en"}],"givenNames":[{"givenName":"Thi Thanh Nguyen","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tanabe, Eishi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Tanabe","familyNameLang":"en"}],"givenNames":[{"givenName":"Eishi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takano, Aoi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Takano","familyNameLang":"en"}],"givenNames":[{"givenName":"Aoi","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kataoka, Mikihiro","creatorNameLang":"en"}],"familyNames":[{"familyName":"Kataoka","familyNameLang":"en"}],"givenNames":[{"givenName":"Mikihiro","givenNameLang":"en"}]},{"creatorNames":[{"creatorName":"Ogi, Takashi","creatorNameLang":"en"}],"familyNames":[{"familyName":"Ogi","familyNameLang":"en"}],"givenNames":[{"givenName":"Takashi","givenNameLang":"en"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_access_right":"embargoed access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_f1cf"}]},"item_1617186499011":{"attribute_name":"Rights","attribute_value_mlt":[{"subitem_rights":"This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.4c01150","subitem_rights_language":"en"},{"subitem_rights":"This is not the published version. Please cite only the published version.","subitem_rights_language":"en"},{"subitem_rights":"この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。","subitem_rights_language":"ja"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_subject":"Macroporous","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Polymer Electrolyte Fuel Cell","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Nb-Doped SnO2","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Porosity","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Flame Synthesis","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"Macroporous niobium-doped tin oxide (NTO) is introduced as a robust alternative to conventional carbon-based catalyst supports to improve the durability and performance of polymer electrolyte fuel cells (PEFCs). Metal oxides like NTO are more stable than carbon under PEFC operational conditions, but they can compromise gas diffusion and water management because of their denser structures. To address this tradeoff, we synthesized macroporous NTO particles using a flame-assisted spray-drying technique employing poly(methyl methacrylate) as a templating agent. X-ray diffraction analysis and scanning electron microscopy confirmed the preservation of crystallinity and revealed a macroporous morphology with larger pore volumes and diameters than those in flame-made NTO nanoparticles, as revealed by mercury porosimetry. The macroporous NTO particles exhibited enhanced maximum current density and reduced gas diffusion resistance relative to commercial carbon supports. Our findings establish a foundation for integrating macroporous NTO structures into PEFCs to optimize durability and performance.","subitem_description_language":"en"},{"subitem_description":"This work was partially supported by the Center for Functional Nano Oxides at Hiroshima University, International Network on Polyoxometalate Science, JSPS Core-to-Core Program, Information Center of Particle Technology, Japan, and the Hosokawa Powder Technology Foundation.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_publisher":"American Chemical Society","subitem_publisher_language":"en"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_1617186901218":{"attribute_name":"Funding 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