{"id":"https://openalex.org/W7204997503","doi":"https://doi.org/10.26434/chemrxiv.15008175/v1","title":"Controlling Interfacial Cation Interdiffusion to Unlock the Intrinsic Performance of Pr-Based PCFC Cathodes","display_name":"Controlling Interfacial Cation Interdiffusion to Unlock the Intrinsic Performance of Pr-Based PCFC Cathodes","publication_year":2026,"publication_date":"2026-09-01","ids":{"openalex":"https://openalex.org/W7204997503","doi":"https://doi.org/10.26434/chemrxiv.15008175/v1"},"language":"en","primary_location":{"id":"doi:10.26434/chemrxiv.15008175/v1","doi":"https://doi.org/10.26434/chemrxiv.15008175/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15008175/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15008175/v1","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15008175/v1","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5010178814","display_name":"Keerti M. Naik","orcid":"https://orcid.org/0000-0002-1996-2811","observed_orcids":["https://orcid.org/0000-0002-1996-2811"]},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},{"id":"https://openalex.org/I4405287645","display_name":"International Institute for Carbon-Neutral Energy Research, Kyushu University","ror":"https://ror.org/05r6g1d09","country_code":"JP","type":"facility","lineage":["https://openalex.org/I135598925","https://openalex.org/I4405287645"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keerti M. Naik","raw_affiliation_strings":[". Center for Energy System Design (CESD) , International Institute for Carbon Neutral Energy Research (WPI-I2CNER) , Kyushu University , Motooka 744 , Fukuoka 819-0395 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":". Center for Energy System Design (CESD) , International Institute for Carbon Neutral Energy Research (WPI-I2CNER) , Kyushu University , Motooka 744 , Fukuoka 819-0395 , Japan","institution_ids":["https://openalex.org/I135598925","https://openalex.org/I4405287645"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020625328","display_name":"Yoshihiro Yamazaki","orcid":"https://orcid.org/0000-0002-9375-5239","observed_orcids":["https://orcid.org/0000-0002-9375-5239"]},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},{"id":"https://openalex.org/I4405286259","display_name":"Kyushu University Platform of Inter-/Transdisciplinary Energy Research","ror":"https://ror.org/01msg4834","country_code":"JP","type":"facility","lineage":["https://openalex.org/I135598925","https://openalex.org/I4405286259"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshihiro Yamazaki","raw_affiliation_strings":[". Platform of Inter-/Transdisciplinary Energy Research (Q-PIT) , Kyushu University , Motooka 744 , Fukuoka 819-0395 , Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":". Platform of Inter-/Transdisciplinary Energy Research (Q-PIT) , Kyushu University , Motooka 744 , Fukuoka 819-0395 , Japan","institution_ids":["https://openalex.org/I135598925","https://openalex.org/I4405286259"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5055233800","display_name":"Junji Hyodo","orcid":"https://orcid.org/0000-0001-5700-5791","observed_orcids":["https://orcid.org/0000-0001-5700-5791"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Junji Hyodo","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0001-5700-5791","affiliations":[]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10311","display_name":"Advancements in Solid Oxide Fuel Cells","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10311","display_name":"Advancements in Solid Oxide Fuel Cells","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2505","display_name":"Materials Chemistry"},"field":{"id":"https://openalex.org/fields/25","display_name":"Materials Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10409","display_name":"Fuel Cells and Related Materials","score":0.0008999999845400453,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10030","display_name":"Electrocatalysts for Energy Conversion","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2105","display_name":"Renewable Energy, Sustainability and the Environment"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/perovskite-cathode","display_name":"perovskite cathode","score":0.8939999938011169},{"id":"https://openalex.org/keywords/cation-interdiffusion","display_name":"cation interdiffusion","score":0.8989999890327454},{"id":"https://openalex.org/keywords/electrode-electrolyte-interface","display_name":"electrode-electrolyte interface","score":0.9890000224113464},{"id":"https://openalex.org/keywords/lattice-expansion","display_name":"lattice expansion","score":0.7689999938011169},{"id":"https://openalex.org/keywords/oxygen-reduction-reaction","display_name":"oxygen reduction reaction","score":0.8870000243186951},{"id":"https://openalex.org/keywords/thermomechanical-analysis","display_name":"thermomechanical analysis","score":0.6880000233650208},{"id":"https://openalex.org/keywords/low-temperature-bonding","display_name":"low-temperature bonding","score":0.5400000214576721}],"concepts":[{"id":"https://openalex.org/C49110097","wikidata":"https://www.wikidata.org/wiki/Q175233","display_name":"Cathode","level":2,"score":0.7766000032424927},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.7152000069618225},{"id":"https://openalex.org/C155011858","wikidata":"https://www.wikidata.org/wiki/Q3036449","display_name":"Perovskite (structure)","level":2,"score":0.5576000213623047},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.47209998965263367},{"id":"https://openalex.org/C69990965","wikidata":"https://www.wikidata.org/wiki/Q65402698","display_name":"Electrical resistivity and conductivity","level":2,"score":0.39169999957084656},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.3499999940395355},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.34709998965263367},{"id":"https://openalex.org/C89395315","wikidata":"https://www.wikidata.org/wiki/Q181232","display_name":"Anode","level":3,"score":0.33959999680519104},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.3269999921321869},{"id":"https://openalex.org/C131540310","wikidata":"https://www.wikidata.org/wiki/Q907564","display_name":"Conductivity","level":2,"score":0.32690000534057617},{"id":"https://openalex.org/C82776694","wikidata":"https://www.wikidata.org/wiki/Q380049","display_name":"Mesoporous material","level":3,"score":0.31310001015663147},{"id":"https://openalex.org/C55904794","wikidata":"https://www.wikidata.org/wiki/Q82682","display_name":"Redox","level":2,"score":0.30160000920295715},{"id":"https://openalex.org/C2993864201","wikidata":"https://www.wikidata.org/wiki/Q7873","display_name":"Oxygen transport","level":3,"score":0.2874999940395355},{"id":"https://openalex.org/C207114421","wikidata":"https://www.wikidata.org/wiki/Q133900","display_name":"Diffraction","level":2,"score":0.28299999237060547},{"id":"https://openalex.org/C52859227","wikidata":"https://www.wikidata.org/wiki/Q7877","display_name":"Electrochemistry","level":3,"score":0.2768000066280365},{"id":"https://openalex.org/C159467904","wikidata":"https://www.wikidata.org/wiki/Q2001702","display_name":"Chemical physics","level":1,"score":0.2761000096797943},{"id":"https://openalex.org/C2989209122","wikidata":"https://www.wikidata.org/wiki/Q178512","display_name":"Mass transport","level":2,"score":0.2703999876976013},{"id":"https://openalex.org/C2987658370","wikidata":"https://www.wikidata.org/wiki/Q180253","display_name":"Fuel cells","level":2,"score":0.26010000705718994},{"id":"https://openalex.org/C2779851234","wikidata":"https://www.wikidata.org/wiki/Q50690","display_name":"Oxide","level":2,"score":0.25929999351501465},{"id":"https://openalex.org/C113196181","wikidata":"https://www.wikidata.org/wiki/Q485223","display_name":"Analytical Chemistry (journal)","level":2,"score":0.2531000077724457}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.26434/chemrxiv.15008175/v1","doi":"https://doi.org/10.26434/chemrxiv.15008175/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15008175/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15008175/v1","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.26434/chemrxiv.15008175/v1","doi":"https://doi.org/10.26434/chemrxiv.15008175/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15008175/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15008175/v1","source":{"id":"https://openalex.org/S4393918830","display_name":"ChemRxiv","issn_l":"2573-2293","issn":["2573-2293"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"sustainable_development_goals":[{"score":0.9090999960899353,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G1328344062","display_name":"Revealing the impact of point defects in air electrode materials for efficient proton-conducting ceramic fuel cells","funder_award_id":"26K08510","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G1343877562","display_name":null,"funder_award_id":"JPMJCR2234","funder_id":"https://openalex.org/F4320338075","funder_display_name":"Core Research for Evolutional Science and Technology"},{"id":"https://openalex.org/G5542782028","display_name":"New Theory for Activationg Proton Conduction by Hydration-Induced Structural Phase Transition","funder_award_id":"24K08081","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"},{"id":"https://openalex.org/F4320338075","display_name":"Core Research for Evolutional Science and Technology","ror":"https://ror.org/00097mb19"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7204997503.pdf","grobid_xml":"https://content.openalex.org/works/W7204997503.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W1974418164","https://openalex.org/W2001515907","https://openalex.org/W2028056984","https://openalex.org/W2037075192","https://openalex.org/W2089819814","https://openalex.org/W2162682097","https://openalex.org/W2890111516","https://openalex.org/W2918315357","https://openalex.org/W3141824881","https://openalex.org/W4200119934","https://openalex.org/W4213114399","https://openalex.org/W4214628445","https://openalex.org/W4283745678","https://openalex.org/W4302774079","https://openalex.org/W4310277266","https://openalex.org/W4313557623","https://openalex.org/W4323670042","https://openalex.org/W4386496038","https://openalex.org/W4391681911","https://openalex.org/W4391923421","https://openalex.org/W4392983594","https://openalex.org/W4394718384","https://openalex.org/W4395030217","https://openalex.org/W4396588946","https://openalex.org/W4396669859","https://openalex.org/W4398206785","https://openalex.org/W4399594559","https://openalex.org/W4400331302","https://openalex.org/W4404286982","https://openalex.org/W4406559571","https://openalex.org/W4409181351","https://openalex.org/W4409706824","https://openalex.org/W4409957447","https://openalex.org/W4409997922","https://openalex.org/W4412075786","https://openalex.org/W7124156640","https://openalex.org/W7128736704","https://openalex.org/W7164028952","https://openalex.org/W7167482587"],"related_works":["https://openalex.org/W4415655658","https://openalex.org/W4360848665","https://openalex.org/W3135465943","https://openalex.org/W4319159497","https://openalex.org/W7220715684","https://openalex.org/W4312558845","https://openalex.org/W4225959577","https://openalex.org/W3093169278","https://openalex.org/W7123629758","https://openalex.org/W7213440663"],"abstract_inverted_index":{"Bridging":[0],"the":[1,4,28,36,108,129,132,135,144,160,180,186,192,226,236,267],"gap":[2],"between":[3],"intrinsic":[5,145,268],"electrocatalytic":[6,146,269],"activity":[7],"of":[8,24,46,120,131,212,271],"cathode":[9,133],"materials":[10],"and":[11,39,65,118,123,142,216],"their":[12],"practical":[13],"performance":[14,196],"in":[15,111,116],"proton-conducting":[16],"fuel":[17],"cells":[18],"(PCFCs)":[19],"requires":[20],"a":[21,80,112,148,250,260],"fundamental":[22],"understanding":[23],"cation":[25,37,105,158,243,278],"interdiffusion":[26,106,244],"at":[27,254],"electrode-electrolyte":[29],"interface.":[30],"In":[31],"this":[32,157],"study,":[33],"we":[34],"investigate":[35],"diffusion":[38],"adhesion":[40,101],"ability":[41],"for":[42,172,220,263,290],"Pr-based":[43],"perovskite":[44,183],"cathodes":[45,273],"Pr":[47],"0.5":[48,50,61,69,71,75],"Sr":[49,70],"Co":[51,72],"0.75":[52],"Fe":[53,60,74],"0.25":[54],"O":[55,62,76,89],"3\u2212\u03b4":[56,90],"(PSCF),":[57],"PrBaCo":[58],"1.5":[59,73],"5+\u03b4":[63,77],"(PBCF),":[64],"Ba/Sr":[66,237],"co-doped":[67,238],"PrBa":[68],"(PBSCF)":[78],"on":[79],"BaZr":[81],"0.1":[82,86,88],"Ce":[83],"0.7":[84],"Y":[85],"Yb":[87],"(BZCYYb)":[91],"electrolyte.":[92,136],"X-ray":[93],"diffraction":[94],"analysis":[95,232],"reveals":[96,234],"that":[97,235],"conventional":[98],"1000":[99,255],"\u00b0C":[100,150],"process":[102,152],"triggers":[103],"irreversible":[104,161],"across":[107],"interface,":[109],"resulting":[110],"severe":[113],"lattice":[114],"expansion":[115],"PSCF":[117,184],"PBCF":[119],"+0.5":[121],"%":[122],"+1.3":[124],"%,":[125],"respectively,":[126],"leading":[127],"to":[128,166,245],"delamination":[130],"from":[134,199],"To":[137],"eliminate":[138],"these":[139,177],"interfacial":[140,242,277],"penalties":[141],"evaluate":[143],"activity,":[147],"750":[149],"bonding":[151],"was":[153],"employed.":[154],"By":[155],"suppressing":[156,276],"interdiffusion,":[159],"volume":[162],"variations":[163],"were":[164],"constrained":[165],"approximately":[167],"\u00b10.1%,":[168],"achieving":[169],"crack-free":[170],"interfaces":[171],"all":[173],"compositions.":[174],"Evaluated":[175],"under":[176],"ideal":[178],"conditions,":[179],"Sr-substituted":[181],"simple":[182],"demonstrated":[185],"highest":[187],"peak":[188],"power":[189],"density,":[190],"exceeding":[191],"benchmark":[193],"PBSCF.":[194],"This":[195,257],"fundamentally":[197],"originates":[198],"its":[200],"disordered":[201],"framework":[202],"(Pnma),":[203],"which":[204],"provides":[205],"enhanced":[206],"electron-donating":[207],"capability,":[208],"an":[209],"enriched":[210],"concentration":[211],"surface-active":[213],"oxygen":[214,227],"intermediates,":[215],"superior":[217],"electrical":[218],"conductivity":[219],"rapid":[221],"bulk":[222],"charge":[223],"transfer":[224],"during":[225],"reduction":[228],"reaction.":[229],"Our":[230],"thermomechanical":[231],"also":[233],"PBSCF":[239],"uniquely":[240],"utilizes":[241],"counterbalance":[246],"contact-induced":[247],"expansion,":[248],"maintaining":[249],"continuous":[251],"interface":[252],"even":[253],"\u00b0C.":[256],"study":[258],"establishes":[259],"dual":[261],"strategy":[262],"advancing":[264],"PCFCs:":[265],"unlocking":[266],"potential":[270],"active":[272],"by":[274],"either":[275],"mixing":[279],"via":[280],"low-temperature":[281],"processing":[282],"or":[283],"utilizing":[284],"it":[285],"through":[286],"interface-tailored":[287],"A-site":[288],"engineering":[289],"spontaneous":[291],"strain":[292],"neutralization.":[293]},"counts_by_year":[],"updated_date":"2026-11-09T13:22:03.289127","created_date":"2026-09-02T00:00:00"}