{"id":"https://openalex.org/W2139206895","doi":"https://doi.org/10.1115/1.2183804","title":"Solar Hydrogen Production by a Two-Step Cycle Based on Mixed Iron Oxides","display_name":"Solar Hydrogen Production by a Two-Step Cycle Based on Mixed Iron Oxides","publication_year":2005,"publication_date":"2005-09-27","ids":{"openalex":"https://openalex.org/W2139206895","doi":"https://doi.org/10.1115/1.2183804","mag":"2139206895"},"language":"en","primary_location":{"id":"doi:10.1115/1.2183804","doi":"https://doi.org/10.1115/1.2183804","is_oa":false,"landing_page_url":"https://doi.org/10.1115/1.2183804","pdf_url":null,"source":{"id":"https://openalex.org/S201326824","display_name":"Journal of Solar Energy Engineering","issn_l":"0199-6231","issn":["0199-6231","1528-8986"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310316053","host_organization_name":"ASM International","host_organization_lineage":["https://openalex.org/P4310316053"],"host_organization_lineage_names":["ASM International"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Solar Energy Engineering","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5033450671","display_name":"Martin Roeb","orcid":"https://orcid.org/0000-0002-9813-5135","observed_orcids":["https://orcid.org/0000-0002-9813-5135"]},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Martin Roeb","raw_affiliation_strings":["German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003022004","display_name":"Christian Sattler","orcid":"https://orcid.org/0000-0002-4314-1124","observed_orcids":["https://orcid.org/0000-0002-4314-1124"]},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Christian Sattler","raw_affiliation_strings":["German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051089206","display_name":"Ruth Kl\u00fcser","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Ruth Kl\u00fcser","raw_affiliation_strings":["German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065748208","display_name":"Nathalie Monnerie","orcid":"https://orcid.org/0000-0002-0220-6665","observed_orcids":["https://orcid.org/0000-0002-0220-6665"]},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Nathalie Monnerie","raw_affiliation_strings":["German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076030438","display_name":"Lamark de Oliveira","orcid":"https://orcid.org/0009-0003-6219-2095","observed_orcids":["https://orcid.org/0009-0003-6219-2095"]},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Lamark de Oliveira","raw_affiliation_strings":["German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"German Aerospace Center (DLR), Institute of Technical Thermodynamics, Solar Research, 51170 Cologne, Germany","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076235311","display_name":"Athanasios G. Konstandopoulos","orcid":"https://orcid.org/0000-0002-5920-4273","observed_orcids":["https://orcid.org/0000-0002-5920-4273"]},"institutions":[{"id":"https://openalex.org/I4210134249","display_name":"Centre for Research and Technology Hellas","ror":"https://ror.org/03bndpq63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210134249"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Athanasios G. Konstandopoulos","raw_affiliation_strings":["Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece","institution_ids":["https://openalex.org/I4210134249"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056756549","display_name":"Christos Agrafiotis","orcid":"https://orcid.org/0000-0002-7140-9642","observed_orcids":["https://orcid.org/0000-0002-7140-9642"]},"institutions":[{"id":"https://openalex.org/I4210134249","display_name":"Centre for Research and Technology Hellas","ror":"https://ror.org/03bndpq63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210134249"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Christos Agrafiotis","raw_affiliation_strings":["Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece","institution_ids":["https://openalex.org/I4210134249"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047973153","display_name":"V.T. Zaspalis","orcid":"https://orcid.org/0000-0002-0919-0846","observed_orcids":["https://orcid.org/0000-0002-0919-0846"]},"institutions":[{"id":"https://openalex.org/I4210134249","display_name":"Centre for Research and Technology Hellas","ror":"https://ror.org/03bndpq63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210134249"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"V. T. Zaspalis","raw_affiliation_strings":["Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece","institution_ids":["https://openalex.org/I4210134249"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087344192","display_name":"Lori Nalbandian","orcid":"https://orcid.org/0000-0002-9216-4816","observed_orcids":["https://orcid.org/0000-0002-9216-4816"]},"institutions":[{"id":"https://openalex.org/I4210134249","display_name":"Centre for Research and Technology Hellas","ror":"https://ror.org/03bndpq63","country_code":"GR","type":"facility","lineage":["https://openalex.org/I4210134249"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"L. Nalbandian","raw_affiliation_strings":["Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Centre For Research And Technology-Hellas, Chemical Process Engineering Research Institute, Thessaloniki, Greece","institution_ids":["https://openalex.org/I4210134249"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102943334","display_name":"Andrew M. Steele","orcid":"https://orcid.org/0000-0002-8907-1192","observed_orcids":["https://orcid.org/0000-0002-8907-1192"]},"institutions":[{"id":"https://openalex.org/I4210099042","display_name":"Johnson Matthey (United Kingdom)","ror":"https://ror.org/01411sx56","country_code":"GB","type":"company","lineage":["https://openalex.org/I4210099042"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Andrew Steele","raw_affiliation_strings":["Johnson Matthey Fuel Cells, Blount\u2019s Court, Sonning Common, Reading RG4 9NH, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Johnson Matthey Fuel Cells, Blount\u2019s Court, Sonning Common, Reading RG4 9NH, UK","institution_ids":["https://openalex.org/I4210099042"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048579198","display_name":"Per Stobbe","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Per Stobbe","raw_affiliation_strings":["Stobbe Tech A/S, Vejlemosevej 60, DK-2840 Holte, Denmark"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Stobbe Tech A/S, Vejlemosevej 60, DK-2840 Holte, Denmark","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":13.5854,"has_fulltext":false,"cited_by_count":158,"citation_normalized_percentile":{"value":0.98813854,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"128","issue":"2","first_page":"125","last_page":"133"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11802","display_name":"Chemical Looping and Thermochemical Processes","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"field":{"id":"https://openalex.org/fields/21","display_name":"Energy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11802","display_name":"Chemical Looping and Thermochemical Processes","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2103","display_name":"Fuel Technology"},"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/T10078","display_name":"Advanced Photocatalysis Techniques","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/T11877","display_name":"Iron oxide chemistry and applications","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/solar-hydrogen-production","display_name":"solar hydrogen production","score":0.9929999709129333},{"id":"https://openalex.org/keywords/water-splitting","display_name":"water splitting","score":0.7170000076293945},{"id":"https://openalex.org/keywords/solar-furnace","display_name":"solar furnace","score":0.7110000252723694},{"id":"https://openalex.org/keywords/oxygen-storage","display_name":"oxygen storage","score":0.597000002861023}],"concepts":[{"id":"https://openalex.org/C202189072","wikidata":"https://www.wikidata.org/wiki/Q1929999","display_name":"Hydrogen production","level":3,"score":0.6623107194900513},{"id":"https://openalex.org/C57171237","wikidata":"https://www.wikidata.org/wiki/Q7783130","display_name":"Thermochemical cycle","level":4,"score":0.604080080986023},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6014397144317627},{"id":"https://openalex.org/C512968161","wikidata":"https://www.wikidata.org/wiki/Q556","display_name":"Hydrogen","level":2,"score":0.5908622145652771},{"id":"https://openalex.org/C2777348173","wikidata":"https://www.wikidata.org/wiki/Q855248","display_name":"Solar furnace","level":3,"score":0.5792348980903625},{"id":"https://openalex.org/C541104983","wikidata":"https://www.wikidata.org/wiki/Q40015","display_name":"Solar energy","level":2,"score":0.5673163533210754},{"id":"https://openalex.org/C134132462","wikidata":"https://www.wikidata.org/wiki/Q45621","display_name":"Ceramic","level":2,"score":0.5008363723754883},{"id":"https://openalex.org/C2779851234","wikidata":"https://www.wikidata.org/wiki/Q50690","display_name":"Oxide","level":2,"score":0.49220219254493713},{"id":"https://openalex.org/C540031477","wikidata":"https://www.wikidata.org/wiki/Q629","display_name":"Oxygen","level":2,"score":0.4808514714241028},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.4622803032398224},{"id":"https://openalex.org/C21880701","wikidata":"https://www.wikidata.org/wiki/Q2144042","display_name":"Process engineering","level":1,"score":0.4340604245662689},{"id":"https://openalex.org/C102931765","wikidata":"https://www.wikidata.org/wiki/Q189673","display_name":"Dissociation (chemistry)","level":2,"score":0.4113600254058838},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.2892444431781769},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.19306445121765137},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11181962490081787},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.10979622602462769},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1115/1.2183804","doi":"https://doi.org/10.1115/1.2183804","is_oa":false,"landing_page_url":"https://doi.org/10.1115/1.2183804","pdf_url":null,"source":{"id":"https://openalex.org/S201326824","display_name":"Journal of Solar Energy Engineering","issn_l":"0199-6231","issn":["0199-6231","1528-8986"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-2"],"host_organization":"https://openalex.org/P4310316053","host_organization_name":"ASM International","host_organization_lineage":["https://openalex.org/P4310316053"],"host_organization_lineage_names":["ASM International"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Solar Energy Engineering","raw_type":"journal-article"},{"id":"pmh:oai:elib.dlr.de:46075","doi":null,"is_oa":false,"landing_page_url":"https://elib.dlr.de/46075/1/125-133_Roeb_Hydrosol.pdf","pdf_url":"https://elib.dlr.de/46075/1/125-133_Roeb_Hydrosol.pdf","source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Zeitschriftenbeitrag"},{"id":"pmh:oai:elib.dlr.de:49463","doi":null,"is_oa":false,"landing_page_url":"https://elib.dlr.de/49463/1/ISEC2005-76126_Roeb_HYDROSOL.pdf","pdf_url":"https://elib.dlr.de/49463/1/ISEC2005-76126_Roeb_HYDROSOL.pdf","source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Konferenzbeitrag"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":1.0},{"id":"https://metadata.un.org/sdg/13","display_name":"Climate action","score":0.685699999332428}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":23,"referenced_works":["https://openalex.org/W6443048","https://openalex.org/W60616226","https://openalex.org/W347126408","https://openalex.org/W1490125592","https://openalex.org/W1493535126","https://openalex.org/W1543814556","https://openalex.org/W1943164636","https://openalex.org/W1966709410","https://openalex.org/W1975150935","https://openalex.org/W1989932989","https://openalex.org/W2000720029","https://openalex.org/W2023559287","https://openalex.org/W2024806231","https://openalex.org/W2045836481","https://openalex.org/W2047308962","https://openalex.org/W2060140554","https://openalex.org/W2069723071","https://openalex.org/W2072573430","https://openalex.org/W2088834736","https://openalex.org/W2115573541","https://openalex.org/W2126524277","https://openalex.org/W2523198415","https://openalex.org/W4296247664"],"related_works":["https://openalex.org/W7096368238","https://openalex.org/W2523198415","https://openalex.org/W47836605","https://openalex.org/W21202235","https://openalex.org/W109970112","https://openalex.org/W2062472124","https://openalex.org/W2063689892","https://openalex.org/W2088979168","https://openalex.org/W2956102409","https://openalex.org/W2023049761"],"abstract_inverted_index":{"A":[0],"promising":[1],"method":[2],"for":[3],"the":[4,14,64,77,90,100,103,107,110,151,173],"conversion":[5],"and":[6,20,89,94,130,133,148],"storage":[7],"of":[8,16,45,92,109,121,126,135,138,172],"solar":[9,47,74,141,152,161],"energy":[10,75],"into":[11,18],"hydrogen":[12,95,162],"is":[13,96,164],"dissociation":[15],"water":[17],"oxygen":[19,93,101],"hydrogen,":[21],"carried":[22,69],"out":[23,70],"via":[24],"a":[25,50,72,139],"two-step":[26],"process":[27,66,78,168,174],"using":[28],"metal":[29,104],"oxide":[30],"redox":[31,123],"systems":[32],"such":[33],"as":[34],"mixed":[35],"iron":[36],"oxides,":[37],"coated":[38],"upon":[39],"multi-channeled":[40],"honeycomb":[41,128],"ceramic":[42,127],"supports":[43,129],"capable":[44],"absorbing":[46],"irradiation,":[48],"in":[49,56,71,102,116,150,154,177],"configuration":[51],"similar":[52],"to":[53,85],"that":[54,160,170],"encountered":[55],"automobile":[57],"exhaust":[58],"catalytic":[59],"converters.":[60],"With":[61],"this":[62,167],"configuration,":[63],"whole":[65],"can":[67,80],"be":[68,81],"single":[73],"converter,":[76],"temperature":[79],"significantly":[82],"lowered":[83],"compared":[84],"other":[86],"thermo-chemical":[87],"cycles":[88],"recombination":[91],"prevented":[97],"by":[98,166],"fixing":[99],"oxide.":[105],"For":[106],"realization":[108],"integrated":[111],"concept,":[112],"research":[113],"work":[114],"proceeded":[115],"three":[117],"parallel":[118],"directions:":[119],"synthesis":[120],"active":[122],"systems,":[124],"manufacture":[125],"manufacture,":[131],"testing":[132],"optimization":[134],"operating":[136],"conditions":[137],"thermochemical":[140],"receiver-reactor.":[142],"The":[143],"receiver-reactor":[144],"has":[145],"been":[146],"developed":[147],"installed":[149],"furnace":[153],"Cologne,":[155],"Germany.":[156],"It":[157],"was":[158,175],"proven":[159],"production":[163],"feasible":[165],"demonstrating":[169],"multicycling":[171],"possible":[176],"principle.":[178]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":8},{"year":2019,"cited_by_count":9},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":10},{"year":2016,"cited_by_count":10},{"year":2015,"cited_by_count":10},{"year":2014,"cited_by_count":11},{"year":2013,"cited_by_count":8},{"year":2012,"cited_by_count":10}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}