{"id":"https://openalex.org/W7224475805","doi":"https://doi.org/10.26434/chemrxiv.15011232/v1","title":"Probing ionomer distribution in PEMFC catalyst layers: AFM and DEM enabled microstructure analysis","display_name":"Probing ionomer distribution in PEMFC catalyst layers: AFM and DEM enabled microstructure analysis","publication_year":2026,"publication_date":"2026-10-29","ids":{"openalex":"https://openalex.org/W7224475805","doi":"https://doi.org/10.26434/chemrxiv.15011232/v1"},"language":"en","primary_location":{"id":"doi:10.26434/chemrxiv.15011232/v1","doi":"https://doi.org/10.26434/chemrxiv.15011232/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15011232/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15011232/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":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"volume":null,"type":"preprint","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15011232/v1","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5157860970","display_name":"Sourab Barath Vijayaraghavan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4647051","display_name":"Universit\u00e9 de Picardie Jules Verne","ror":"https://ror.org/01gyxrk03","country_code":"FR","type":"education","lineage":["https://openalex.org/I4647051"]},{"id":"https://openalex.org/I898379201","display_name":"Freudenberg (Germany)","ror":"https://ror.org/042fpk261","country_code":"DE","type":"company","lineage":["https://openalex.org/I898379201"]}],"countries":["DE","FR"],"is_corresponding":false,"raw_author_name":"Sourab Barath Vijayaraghavan","raw_affiliation_strings":["Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","UMR CNRS","Universit\u00e9 de Picardie Jules Verne"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","institution_ids":["https://openalex.org/I898379201"]},{"raw_affiliation_string":"UMR CNRS","institution_ids":["https://openalex.org/I1294671590"]},{"raw_affiliation_string":"Universit\u00e9 de Picardie Jules Verne","institution_ids":["https://openalex.org/I4647051"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5160080862","display_name":"Bernhard Lill","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I898379201","display_name":"Freudenberg (Germany)","ror":"https://ror.org/042fpk261","country_code":"DE","type":"company","lineage":["https://openalex.org/I898379201"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Bernhard Lill","raw_affiliation_strings":["Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","institution_ids":["https://openalex.org/I898379201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099433613","display_name":"Pempa Tshering Bhutia","orcid":"https://orcid.org/0009-0006-2140-0902","observed_orcids":["https://orcid.org/0009-0006-2140-0902"]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I4210086955","display_name":"R\u00e9seau sur le Stockage Electrochimique de l'\u00e9nergie","ror":"https://ror.org/00190j002","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I4210086955"]},{"id":"https://openalex.org/I4647051","display_name":"Universit\u00e9 de Picardie Jules Verne","ror":"https://ror.org/01gyxrk03","country_code":"FR","type":"education","lineage":["https://openalex.org/I4647051"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Pempa Tshering Bhutia","raw_affiliation_strings":["R\u00e9seau sur le Stockage Electrochimique de l\u2019Energie (RS2E), FR CNRS 3459, Hub de l\u2019Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","UMR CNRS","Universit\u00e9 de Picardie Jules Verne"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"R\u00e9seau sur le Stockage Electrochimique de l\u2019Energie (RS2E), FR CNRS 3459, Hub de l\u2019Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I4210086955"]},{"raw_affiliation_string":"UMR CNRS","institution_ids":["https://openalex.org/I1294671590"]},{"raw_affiliation_string":"Universit\u00e9 de Picardie Jules Verne","institution_ids":["https://openalex.org/I4647051"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014107145","display_name":"Tim Renner","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I898379201","display_name":"Freudenberg (Germany)","ror":"https://ror.org/042fpk261","country_code":"DE","type":"company","lineage":["https://openalex.org/I898379201"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Tim Renner","raw_affiliation_strings":["Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","institution_ids":["https://openalex.org/I898379201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5160083279","display_name":"Sarah Grcic","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I898379201","display_name":"Freudenberg (Germany)","ror":"https://ror.org/042fpk261","country_code":"DE","type":"company","lineage":["https://openalex.org/I898379201"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Sarah Grcic","raw_affiliation_strings":["Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","institution_ids":["https://openalex.org/I898379201"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044028301","display_name":"Matthias Baldofski","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I898379201","display_name":"Freudenberg (Germany)","ror":"https://ror.org/042fpk261","country_code":"DE","type":"company","lineage":["https://openalex.org/I898379201"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Matthias Baldofski","raw_affiliation_strings":["Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freudenberg Technology Innovation SE & Co. KG, Hoehnerweg 2-4, Weinheim, Germany, 69469","institution_ids":["https://openalex.org/I898379201"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5080027604","display_name":"Alejandro A. Franco","orcid":"https://orcid.org/0000-0001-7362-7849","observed_orcids":["https://orcid.org/0000-0001-7362-7849","https://orcid.org/0000-0002-3987-3314"]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I185839726","display_name":"Institut Universitaire de France","ror":"https://ror.org/055khg266","country_code":"FR","type":"education","lineage":["https://openalex.org/I185839726"]},{"id":"https://openalex.org/I4210086955","display_name":"R\u00e9seau sur le Stockage Electrochimique de l'\u00e9nergie","ror":"https://ror.org/00190j002","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I4210086955"]},{"id":"https://openalex.org/I4210107589","display_name":"Alistore","ror":"https://ror.org/01wy0hc37","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I4210107589","https://openalex.org/I4210119088","https://openalex.org/I4210128300","https://openalex.org/I4647051"]},{"id":"https://openalex.org/I4647051","display_name":"Universit\u00e9 de Picardie Jules Verne","ror":"https://ror.org/01gyxrk03","country_code":"FR","type":"education","lineage":["https://openalex.org/I4647051"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Alejandro A. Franco","raw_affiliation_strings":["ALISTORE-European Research Institute, FR CNRS 3104, Hub de l'Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","Institut Universitaire de France, 103 Boulevard Saint Michel, Paris, France, 75005","R\u00e9seau sur le Stockage Electrochimique de l\u2019Energie (RS2E), FR CNRS 3459, Hub de l\u2019Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","UMR CNRS","Universit\u00e9 de Picardie Jules Verne"],"raw_orcid":"https://orcid.org/0000-0001-7362-7849","affiliations":[{"raw_affiliation_string":"ALISTORE-European Research Institute, FR CNRS 3104, Hub de l'Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I4210107589"]},{"raw_affiliation_string":"Institut Universitaire de France, 103 Boulevard Saint Michel, Paris, France, 75005","institution_ids":["https://openalex.org/I185839726"]},{"raw_affiliation_string":"R\u00e9seau sur le Stockage Electrochimique de l\u2019Energie (RS2E), FR CNRS 3459, Hub de l\u2019Energie, 15 rue Baudelocque, Amiens Cedex, France, 80039","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I4210086955"]},{"raw_affiliation_string":"UMR CNRS","institution_ids":["https://openalex.org/I1294671590"]},{"raw_affiliation_string":"Universit\u00e9 de Picardie Jules Verne","institution_ids":["https://openalex.org/I4647051"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"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/T10409","display_name":"Fuel Cells and Related Materials","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10409","display_name":"Fuel Cells and Related Materials","score":1.0,"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":0.0,"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"}},{"id":"https://openalex.org/T10311","display_name":"Advancements in Solid Oxide Fuel Cells","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/proton-exchange-membrane-fuel-cells","display_name":"proton exchange membrane fuel cells","score":0.9490000009536743},{"id":"https://openalex.org/keywords/catalyst-layer","display_name":"catalyst layer","score":0.921999990940094},{"id":"https://openalex.org/keywords/ionomer-distribution","display_name":"ionomer distribution","score":0.9890000224113464},{"id":"https://openalex.org/keywords/catalyst-layer-microstructure","display_name":"catalyst layer microstructure","score":0.9440000057220459},{"id":"https://openalex.org/keywords/atomic-force-microscopy","display_name":"atomic force microscopy","score":0.7870000004768372},{"id":"https://openalex.org/keywords/discrete-element-method","display_name":"discrete element method","score":0.753000020980835},{"id":"https://openalex.org/keywords/simulation-validation","display_name":"simulation validation","score":0.718999981880188}],"concepts":[{"id":"https://openalex.org/C87976508","wikidata":"https://www.wikidata.org/wiki/Q1498213","display_name":"Microstructure","level":2,"score":0.7896000146865845},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.7498999834060669},{"id":"https://openalex.org/C132319479","wikidata":"https://www.wikidata.org/wiki/Q899619","display_name":"Proton exchange membrane fuel cell","level":3,"score":0.7483000159263611},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.7017999887466431},{"id":"https://openalex.org/C2779227376","wikidata":"https://www.wikidata.org/wiki/Q6505497","display_name":"Layer (electronics)","level":2,"score":0.5383999943733215},{"id":"https://openalex.org/C177212765","wikidata":"https://www.wikidata.org/wiki/Q627335","display_name":"Workflow","level":2,"score":0.42739999294281006},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.4194999933242798},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.40950000286102295},{"id":"https://openalex.org/C102951782","wikidata":"https://www.wikidata.org/wiki/Q49295","display_name":"Atomic force microscopy","level":2,"score":0.40139999985694885},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.328900009393692},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.310699999332428},{"id":"https://openalex.org/C2987658370","wikidata":"https://www.wikidata.org/wiki/Q180253","display_name":"Fuel cells","level":2,"score":0.3093000054359436},{"id":"https://openalex.org/C2776171763","wikidata":"https://www.wikidata.org/wiki/Q290308","display_name":"Ionomer","level":4,"score":0.30320000648498535},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.2768000066280365},{"id":"https://openalex.org/C6648577","wikidata":"https://www.wikidata.org/wiki/Q622669","display_name":"Porosity","level":2,"score":0.26179999113082886},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2578999996185303},{"id":"https://openalex.org/C69544855","wikidata":"https://www.wikidata.org/wiki/Q757625","display_name":"Atomic layer deposition","level":3,"score":0.25060001015663147},{"id":"https://openalex.org/C178394782","wikidata":"https://www.wikidata.org/wiki/Q5051382","display_name":"Catalyst support","level":3,"score":0.2500999867916107}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.26434/chemrxiv.15011232/v1","doi":"https://doi.org/10.26434/chemrxiv.15011232/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15011232/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15011232/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":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.26434/chemrxiv.15011232/v1","doi":"https://doi.org/10.26434/chemrxiv.15011232/v1","is_oa":true,"landing_page_url":"https://doi.org/10.26434/chemrxiv.15011232/v1","pdf_url":"https://chemrxiv.org/doi/pdf/10.26434/chemrxiv.15011232/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":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"posted-content"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7224475805.pdf","grobid_xml":"https://content.openalex.org/works/W7224475805.grobid-xml"},"referenced_works_count":61,"referenced_works":["https://openalex.org/W153917287","https://openalex.org/W607054504","https://openalex.org/W1483090417","https://openalex.org/W1780981880","https://openalex.org/W1975406679","https://openalex.org/W1977778173","https://openalex.org/W1989342521","https://openalex.org/W2002655208","https://openalex.org/W2003442575","https://openalex.org/W2004816004","https://openalex.org/W2007560790","https://openalex.org/W2009920378","https://openalex.org/W2010907328","https://openalex.org/W2013361546","https://openalex.org/W2017516774","https://openalex.org/W2035934892","https://openalex.org/W2047972978","https://openalex.org/W2049124947","https://openalex.org/W2054538403","https://openalex.org/W2057376649","https://openalex.org/W2059676625","https://openalex.org/W2059756644","https://openalex.org/W2061803385","https://openalex.org/W2062065335","https://openalex.org/W2068437091","https://openalex.org/W2069748438","https://openalex.org/W2070643430","https://openalex.org/W2084398821","https://openalex.org/W2091757083","https://openalex.org/W2092359909","https://openalex.org/W2100884049","https://openalex.org/W2101201470","https://openalex.org/W2106810694","https://openalex.org/W2123109551","https://openalex.org/W2147275480","https://openalex.org/W2312199777","https://openalex.org/W2317667134","https://openalex.org/W2791562164","https://openalex.org/W2901285718","https://openalex.org/W2903943595","https://openalex.org/W2914046644","https://openalex.org/W2917582262","https://openalex.org/W2942922338","https://openalex.org/W2979572140","https://openalex.org/W2996263883","https://openalex.org/W3035965352","https://openalex.org/W3041560934","https://openalex.org/W3081792620","https://openalex.org/W3088550091","https://openalex.org/W4213442787","https://openalex.org/W4234407859","https://openalex.org/W4283511912","https://openalex.org/W4289443357","https://openalex.org/W4296847124","https://openalex.org/W4308069519","https://openalex.org/W4365152783","https://openalex.org/W4366162561","https://openalex.org/W4386446453","https://openalex.org/W4393946608","https://openalex.org/W4412642302","https://openalex.org/W4414521965"],"related_works":["https://openalex.org/W3214276417","https://openalex.org/W7057153664","https://openalex.org/W4386254593","https://openalex.org/W2307792235","https://openalex.org/W7110475922","https://openalex.org/W4243750502","https://openalex.org/W2051670629","https://openalex.org/W2188034759","https://openalex.org/W7133051842","https://openalex.org/W4412511667"],"abstract_inverted_index":{"Proton":[0],"Exchange":[1],"Membrane":[2],"Fuel":[3],"Cell":[4],"(PEMFC)":[5],"catalyst":[6,29,34,41,53,73,87,111,145],"layers":[7,88,146],"have":[8],"been":[9],"probed":[10],"experimentally":[11],"and":[12,30],"theoretically":[13],"for":[14,124],"decades.":[15],"However,":[16],"existing":[17],"microscopy":[18],"techniques":[19],"lack":[20],"the":[21,28,37,40,47,50,69,72,90,99,103,110,139,152],"ability":[22],"to":[23,67,85,137,143],"perform":[24],"quantitative":[25],"analyses":[26],"on":[27,46],"ionomer":[31],"distributions":[32],"of":[33,39,52,57,71,78,92,98,105,109],"layers.":[35],"Since":[36],"microstructure":[38,70],"layer":[42,54,74,112],"has":[43],"an":[44],"influence":[45],"electrochemical":[48],"performance,":[49],"simulation":[51,62,128,132],"microstructures":[55],"is":[56,117],"great":[58],"importance.":[59],"A":[60],"physics-based":[61,127],"model":[63],"was":[64],"recently":[65],"reported":[66],"predict":[68,138],"as":[75,120],"a":[76,83,106,121,125],"function":[77],"ink":[79,140],"composition.":[80],"We":[81],"propose":[82],"workflow":[84,100,133],"characterize":[86],"with":[89,147],"utilisation":[91],"Atomic":[93],"Force":[94],"Microscopy.":[95],"The":[96,130],"novelty":[97],"lies":[101],"in":[102],"calculation":[104],"statistical":[107,115],"description":[108],"(CL).":[113],"This":[114],"metric":[116,123],"then":[118],"used":[119,136],"validation":[122],"microstructural":[126,149],"model.":[129],"resulting":[131],"can":[134],"be":[135],"composition":[141],"required":[142],"obtain":[144],"desired":[148],"properties,":[150],"paving":[151],"way":[153],"towards":[154],"more":[155],"efficient":[156],"PEMFCs.":[157]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2026-10-30T00:00:00"}