{"id":"https://openalex.org/W2000617141","doi":"https://doi.org/10.1039/b902221j","title":"Facile synthesis and self-assembly of hierarchical porous NiO nano/micro spherical superstructures for high performance supercapacitors","display_name":"Facile synthesis and self-assembly of hierarchical porous NiO nano/micro spherical superstructures for high performance supercapacitors","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W2000617141","doi":"https://doi.org/10.1039/b902221j","mag":"2000617141"},"language":"en","primary_location":{"id":"doi:10.1039/b902221j","doi":"https://doi.org/10.1039/b902221j","is_oa":false,"landing_page_url":"https://doi.org/10.1039/b902221j","pdf_url":null,"source":{"id":"https://openalex.org/S45305740","display_name":"Journal of Materials Chemistry","issn_l":"0959-9428","issn":["0959-9428","1364-5501"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320556","host_organization_name":"Royal Society of Chemistry","host_organization_lineage":["https://openalex.org/P4310320556"],"host_organization_lineage_names":["Royal Society of Chemistry"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Materials Chemistry","raw_type":"journal-article"},"volume":null,"type":"article","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/A5003368302","display_name":"Changzhou Yuan","orcid":"https://orcid.org/0000-0002-6484-8970","observed_orcids":["https://orcid.org/0000-0002-6484-8970","https://orcid.org/0000-0001-7971-2059"]},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Changzhou Yuan","raw_affiliation_strings":["College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xiaogang Zhang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaogang Zhang","raw_affiliation_strings":["College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088413306","display_name":"Linhao Su","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Linhao Su","raw_affiliation_strings":["College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100622837","display_name":"Bo Gao","orcid":"https://orcid.org/0000-0002-7474-0015","observed_orcids":["https://orcid.org/0000-0002-7474-0015"]},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bo Gao","raw_affiliation_strings":["College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090196803","display_name":"Laifa Shen","orcid":"https://orcid.org/0000-0001-5114-6446","observed_orcids":["https://orcid.org/0000-0001-5114-6446"]},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Laifa Shen","raw_affiliation_strings":["College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, P.R. China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"College of Material Science & Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing,P.R. China","institution_ids":["https://openalex.org/I9842412"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I9842412"],"apc_list":null,"apc_paid":null,"fwci":19.8424,"has_fulltext":false,"cited_by_count":871,"citation_normalized_percentile":{"value":0.99692609,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":99,"max":100},"biblio":{"volume":"19","issue":"32","first_page":"5772","last_page":"5772"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10179","display_name":"Supercapacitor Materials and Fabrication","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/T10179","display_name":"Supercapacitor Materials and Fabrication","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2504","display_name":"Electronic, Optical and Magnetic Materials"},"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/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/T11907","display_name":"Copper-based nanomaterials 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/nickel-oxide","display_name":"nickel oxide","score":0.9269999861717224},{"id":"https://openalex.org/keywords/hierarchical-porous-nanostructures","display_name":"hierarchical porous nanostructures","score":0.7760000228881836},{"id":"https://openalex.org/keywords/supercapacitors","display_name":"supercapacitors","score":0.7509999871253967},{"id":"https://openalex.org/keywords/ostwald-ripening","display_name":"Ostwald ripening","score":0.9549999833106995},{"id":"https://openalex.org/keywords/self-assembly","display_name":"self-assembly","score":0.8610000014305115},{"id":"https://openalex.org/keywords/calcination","display_name":"calcination","score":0.8399999737739563},{"id":"https://openalex.org/keywords/specific-capacitance","display_name":"specific capacitance","score":0.9890000224113464},{"id":"https://openalex.org/keywords/cycling-stability","display_name":"cycling stability","score":0.9369999766349792},{"id":"https://openalex.org/keywords/energy-storage-electrodes","display_name":"energy storage electrodes","score":0.5410000085830688}],"concepts":[{"id":"https://openalex.org/C74575197","wikidata":"https://www.wikidata.org/wiki/Q9941","display_name":"Non-blocking I/O","level":3,"score":0.8451963663101196},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.8371022939682007},{"id":"https://openalex.org/C62129180","wikidata":"https://www.wikidata.org/wiki/Q903984","display_name":"Ostwald ripening","level":2,"score":0.8346660137176514},{"id":"https://openalex.org/C6585489","wikidata":"https://www.wikidata.org/wiki/Q754523","display_name":"Supercapacitor","level":4,"score":0.8204726576805115},{"id":"https://openalex.org/C82776694","wikidata":"https://www.wikidata.org/wiki/Q380049","display_name":"Mesoporous material","level":3,"score":0.7006806135177612},{"id":"https://openalex.org/C30066665","wikidata":"https://www.wikidata.org/wiki/Q164399","display_name":"Capacitance","level":3,"score":0.6978104710578918},{"id":"https://openalex.org/C7082614","wikidata":"https://www.wikidata.org/wiki/Q849523","display_name":"Calcination","level":3,"score":0.6917461156845093},{"id":"https://openalex.org/C6648577","wikidata":"https://www.wikidata.org/wiki/Q622669","display_name":"Porosity","level":2,"score":0.605549156665802},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.5890101194381714},{"id":"https://openalex.org/C52859227","wikidata":"https://www.wikidata.org/wiki/Q7877","display_name":"Electrochemistry","level":3,"score":0.5797633528709412},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.5729979276657104},{"id":"https://openalex.org/C149792144","wikidata":"https://www.wikidata.org/wiki/Q2071902","display_name":"Coalescence (physics)","level":2,"score":0.5017063617706299},{"id":"https://openalex.org/C17525397","wikidata":"https://www.wikidata.org/wiki/Q176140","display_name":"Electrode","level":2,"score":0.2666262984275818},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.1467759609222412},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.06611573696136475},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.0},{"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/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C87355193","wikidata":"https://www.wikidata.org/wiki/Q411","display_name":"Astrobiology","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1039/b902221j","doi":"https://doi.org/10.1039/b902221j","is_oa":false,"landing_page_url":"https://doi.org/10.1039/b902221j","pdf_url":null,"source":{"id":"https://openalex.org/S45305740","display_name":"Journal of Materials Chemistry","issn_l":"0959-9428","issn":["0959-9428","1364-5501"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310320556","host_organization_name":"Royal Society of Chemistry","host_organization_lineage":["https://openalex.org/P4310320556"],"host_organization_lineage_names":["Royal Society of Chemistry"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Materials Chemistry","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.75,"id":"https://metadata.un.org/sdg/7"}],"sustainable_development_goals_aurora":[{"display_name":"Affordable and clean energy","score":0.8700000047683716,"id":"https://metadata.un.org/sdg/7"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W101407797","https://openalex.org/W1976441606","https://openalex.org/W1983309899","https://openalex.org/W1988794260","https://openalex.org/W1989707413","https://openalex.org/W1992425965","https://openalex.org/W1997435745","https://openalex.org/W2008470016","https://openalex.org/W2020609369","https://openalex.org/W2021478660","https://openalex.org/W2021622098","https://openalex.org/W2024539318","https://openalex.org/W2024637315","https://openalex.org/W2037681744","https://openalex.org/W2060208463","https://openalex.org/W2060416324","https://openalex.org/W2074091002","https://openalex.org/W2076968560","https://openalex.org/W2077687374","https://openalex.org/W2093268033","https://openalex.org/W2104034101","https://openalex.org/W2129590158","https://openalex.org/W2148857962","https://openalex.org/W2155793270","https://openalex.org/W2158343197","https://openalex.org/W2161052496","https://openalex.org/W2953124088"],"related_works":["https://openalex.org/W2015925015","https://openalex.org/W2110200135","https://openalex.org/W2791397127","https://openalex.org/W3112728297","https://openalex.org/W4243889930","https://openalex.org/W2002422984","https://openalex.org/W4247001230","https://openalex.org/W2776479143","https://openalex.org/W2949405185","https://openalex.org/W1971880304"],"abstract_inverted_index":{"We":[0,133],"report":[1],"a":[2,58,86,99,143],"practical":[3],"and":[4,11,26,97,129],"efficient":[5],"strategy":[6],"for":[7,40,142,146],"synthesizing":[8],"hierarchical":[9,47,77],"(meso-":[10],"macro-)porous":[12],"NiO":[13,49,68,79],"nano/micro":[14,80],"spherical":[15],"superstructures.":[16],"First,":[17],"\u03b2-Ni(OH)2":[18],"microspheres":[19],"were":[20,52,82],"self-assembled":[21],"based":[22],"on":[23],"the":[24,55,76,147],"coalescence":[25],"Ostwald-ripening":[27],"mechanisms":[28],"during":[29],"refluxing":[30],"in":[31,120],"an":[32],"alkaline":[33],"solution":[34],"with":[35],"Ni(NH3)x2+":[36],"at":[37,93],"97":[38],"\u00b0C":[39],"1":[41,94],"h":[42],"under":[43],"vigorous":[44],"stirring.":[45],"Second,":[46],"porous":[48,78],"microsphere":[50],"superstructures":[51,64,81,137],"obtained":[53],"from":[54],"precursor":[56],"by":[57],"simple":[59],"calcination":[60],"procedure.":[61],"The":[62],"resulting":[63],"comprised":[65],"two-dimensional":[66],"mesoporous":[67],"petal":[69],"building":[70],"blocks.":[71],"Electrochemical":[72],"data":[73],"demonstrated":[74],"that":[75,114],"capable":[83],"of":[84,89,104,122],"delivering":[85],"specific":[87,101,124],"capacitance":[88,102],"710":[90],"F":[91],"g\u22121":[92,96],"A":[95],"offered":[98],"good":[100,130,140],"retention":[103],"ca.":[105],"98%":[106],"after":[107],"2000":[108],"continuous":[109],"charge-discharge":[110],"cycles.":[111],"This":[112],"indicates":[113],"we":[115],"successfully":[116],"met":[117],"key":[118],"requirements":[119],"terms":[121],"large":[123],"energy":[125],"density,":[126],"high-rate":[127],"capability":[128],"electrochemical":[131],"stability.":[132],"would":[134],"expect":[135],"our":[136],"to":[138],"be":[139],"candidates":[141],"low-cost":[144],"replacement":[145],"state-of-the-art":[148],"supercapacitor":[149],"material":[150],"RuO2.":[151]},"counts_by_year":[{"year":2026,"cited_by_count":10},{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":22},{"year":2023,"cited_by_count":17},{"year":2022,"cited_by_count":25},{"year":2021,"cited_by_count":39},{"year":2020,"cited_by_count":45},{"year":2019,"cited_by_count":58},{"year":2018,"cited_by_count":66},{"year":2017,"cited_by_count":75},{"year":2016,"cited_by_count":79},{"year":2015,"cited_by_count":85},{"year":2014,"cited_by_count":118},{"year":2013,"cited_by_count":79},{"year":2012,"cited_by_count":69}],"updated_date":"2026-10-14T16:39:01.820549","created_date":"2025-10-10T00:00:00"}
