{"id":"https://openalex.org/W7125699366","doi":"https://doi.org/10.3390/inorganics14020033","title":"Integrated Effects of NiCo2O4 and Reduced Graphene Oxide in High-Performance Supercapacitor Systems","display_name":"Integrated Effects of NiCo2O4 and Reduced Graphene Oxide in High-Performance Supercapacitor Systems","publication_year":2026,"publication_date":"2026-01-24","ids":{"openalex":"https://openalex.org/W7125699366","doi":"https://doi.org/10.3390/inorganics14020033"},"language":"en","primary_location":{"id":"doi:10.3390/inorganics14020033","doi":"https://doi.org/10.3390/inorganics14020033","is_oa":true,"landing_page_url":"https://doi.org/10.3390/inorganics14020033","pdf_url":"https://www.mdpi.com/2304-6740/14/2/33/pdf?version=1769233835","source":{"id":"https://openalex.org/S2737417813","display_name":"Inorganics","issn_l":"2304-6740","issn":["2304-6740"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1","poland-20","russia-white-list-2"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Inorganics","raw_type":"journal-article"},"parent_works":[],"lineage":["https://openalex.org/W7125699366"],"child_works_count":0,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/2304-6740/14/2/33/pdf?version=1769233835","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5104230794","display_name":"Govindaraju Radhika","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Radhika Govindaraju","raw_affiliation_strings":["Department of Physics, Rajalakshmi Institute of Technology, Chennai 600124, Tamil Nadu, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Rajalakshmi Institute of Technology, Chennai 600124, Tamil Nadu, India","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5123864347","display_name":"Ananthi Balakrishnan","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ananthi Balakrishnan","raw_affiliation_strings":["Department of Physics, Rajalakshmi Institute of Technology, Chennai 600124, Tamil Nadu, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics, Rajalakshmi Institute of Technology, Chennai 600124, Tamil Nadu, India","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5123869050","display_name":"Neela Mohan Chidambaram","orcid":"https://orcid.org/0000-0001-8490-7504","observed_orcids":["https://orcid.org/0000-0001-8490-7504"]},"institutions":[{"id":"https://openalex.org/I4076070","display_name":"Bharathidasan University","ror":"https://ror.org/02w7vnb60","country_code":"IN","type":"education","lineage":["https://openalex.org/I4076070"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Neela Mohan Chidambaram","raw_affiliation_strings":["Department of Chemistry, Srimad Andavan Arts and Science College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli 620005, Tamil Nadu, India"],"raw_orcid":"https://orcid.org/0000-0001-8490-7504","affiliations":[{"raw_affiliation_string":"Department of Chemistry, Srimad Andavan Arts and Science College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli 620005, Tamil Nadu, India","institution_ids":["https://openalex.org/I4076070"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062705136","display_name":"Vediyappan Thirumal","orcid":"https://orcid.org/0000-0003-4452-7464","observed_orcids":["https://orcid.org/0000-0003-4452-7464"]},"institutions":[{"id":"https://openalex.org/I55240360","display_name":"Yeungnam University","ror":"https://ror.org/05yc6p159","country_code":"KR","type":"education","lineage":["https://openalex.org/I55240360"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Vediyappan Thirumal","raw_affiliation_strings":["Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0003-4452-7464","affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea","institution_ids":["https://openalex.org/I55240360"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072063412","display_name":"Palanisamy Rajkumar","orcid":"https://orcid.org/0000-0002-8543-9738","observed_orcids":["https://orcid.org/0000-0002-8543-9738"]},"institutions":[{"id":"https://openalex.org/I55240360","display_name":"Yeungnam University","ror":"https://ror.org/05yc6p159","country_code":"KR","type":"education","lineage":["https://openalex.org/I55240360"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Palanisamy Rajkumar","raw_affiliation_strings":["Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea","institution_ids":["https://openalex.org/I55240360"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5049185435","display_name":"P. Kim","orcid":"https://orcid.org/0000-0002-6371-2828","observed_orcids":["https://orcid.org/0000-0002-6371-2828"]},"institutions":[{"id":"https://openalex.org/I55240360","display_name":"Yeungnam University","ror":"https://ror.org/05yc6p159","country_code":"KR","type":"education","lineage":["https://openalex.org/I55240360"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Jinho Kim","raw_affiliation_strings":["Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-6371-2828","affiliations":[{"raw_affiliation_string":"Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongbuk-do, Republic of Korea","institution_ids":["https://openalex.org/I55240360"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5049185435","https://openalex.org/A5072063412"],"corresponding_institution_ids":["https://openalex.org/I55240360"],"apc_list":{"value":2200,"currency":"CHF","value_usd":2654},"apc_paid":{"value":2200,"currency":"CHF","value_usd":2654},"fwci":4.1529,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.93730856,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":98},"biblio":{"volume":"14","issue":"2","first_page":"33","last_page":"33"},"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/T12046","display_name":"MXene and MAX Phase Materials","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/nico2o4","display_name":"NiCo2O4","score":0.9020000100135803},{"id":"https://openalex.org/keywords/reduced-graphene-oxide","display_name":"reduced graphene oxide","score":0.9879999756813049},{"id":"https://openalex.org/keywords/supercapacitor-electrodes","display_name":"supercapacitor electrodes","score":0.843999981880188},{"id":"https://openalex.org/keywords/asymmetric-supercapacitor","display_name":"asymmetric supercapacitor","score":0.8799999952316284},{"id":"https://openalex.org/keywords/specific-capacitance","display_name":"specific capacitance","score":0.949999988079071},{"id":"https://openalex.org/keywords/cycling-stability","display_name":"cycling stability","score":0.8999999761581421},{"id":"https://openalex.org/keywords/power-density","display_name":"power density","score":0.5519999861717224},{"id":"https://openalex.org/keywords/energy-density","display_name":"energy density","score":0.9290000200271606},{"id":"https://openalex.org/keywords/nickel-oxide","display_name":"nickel oxide","score":0.6259999871253967},{"id":"https://openalex.org/keywords/co3o4","display_name":"Co3O4","score":0.9169999957084656},{"id":"https://openalex.org/keywords/redox-activity","display_name":"redox activity","score":0.7300000190734863},{"id":"https://openalex.org/keywords/electrical-conductivity","display_name":"electrical conductivity","score":0.6579999923706055}],"concepts":[{"id":"https://openalex.org/C6585489","wikidata":"https://www.wikidata.org/wiki/Q754523","display_name":"Supercapacitor","level":4,"score":0.9394000172615051},{"id":"https://openalex.org/C30066665","wikidata":"https://www.wikidata.org/wiki/Q164399","display_name":"Capacitance","level":3,"score":0.8507999777793884},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.8149999976158142},{"id":"https://openalex.org/C30080830","wikidata":"https://www.wikidata.org/wiki/Q169917","display_name":"Graphene","level":2,"score":0.804099977016449},{"id":"https://openalex.org/C17525397","wikidata":"https://www.wikidata.org/wiki/Q176140","display_name":"Electrode","level":2,"score":0.741599977016449},{"id":"https://openalex.org/C104779481","wikidata":"https://www.wikidata.org/wiki/Q50707","display_name":"Composite number","level":2,"score":0.6413999795913696},{"id":"https://openalex.org/C21881925","wikidata":"https://www.wikidata.org/wiki/Q3503313","display_name":"Power density","level":3,"score":0.6345000267028809},{"id":"https://openalex.org/C73916439","wikidata":"https://www.wikidata.org/wiki/Q837718","display_name":"Energy storage","level":3,"score":0.6115000247955322},{"id":"https://openalex.org/C2779851234","wikidata":"https://www.wikidata.org/wiki/Q50690","display_name":"Oxide","level":2,"score":0.559499979019165},{"id":"https://openalex.org/C52859227","wikidata":"https://www.wikidata.org/wiki/Q7877","display_name":"Electrochemistry","level":3,"score":0.5392000079154968},{"id":"https://openalex.org/C130349721","wikidata":"https://www.wikidata.org/wiki/Q5434705","display_name":"Faraday efficiency","level":4,"score":0.5059000253677368},{"id":"https://openalex.org/C207740977","wikidata":"https://www.wikidata.org/wiki/Q234072","display_name":"Current density","level":2,"score":0.43470001220703125},{"id":"https://openalex.org/C131540310","wikidata":"https://www.wikidata.org/wiki/Q907564","display_name":"Conductivity","level":2,"score":0.41029998660087585},{"id":"https://openalex.org/C140205800","wikidata":"https://www.wikidata.org/wiki/Q5860","display_name":"Carbon fibers","level":3,"score":0.3912000060081482},{"id":"https://openalex.org/C171250308","wikidata":"https://www.wikidata.org/wiki/Q11468","display_name":"Nanotechnology","level":1,"score":0.38670000433921814},{"id":"https://openalex.org/C42360764","wikidata":"https://www.wikidata.org/wiki/Q83588","display_name":"Chemical engineering","level":1,"score":0.3617999851703644},{"id":"https://openalex.org/C62609721","wikidata":"https://www.wikidata.org/wiki/Q3023293","display_name":"Specific energy","level":2,"score":0.3156999945640564},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.3084000051021576},{"id":"https://openalex.org/C69990965","wikidata":"https://www.wikidata.org/wiki/Q65402698","display_name":"Electrical resistivity and conductivity","level":2,"score":0.29269999265670776}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3390/inorganics14020033","doi":"https://doi.org/10.3390/inorganics14020033","is_oa":true,"landing_page_url":"https://doi.org/10.3390/inorganics14020033","pdf_url":"https://www.mdpi.com/2304-6740/14/2/33/pdf?version=1769233835","source":{"id":"https://openalex.org/S2737417813","display_name":"Inorganics","issn_l":"2304-6740","issn":["2304-6740"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1","poland-20","russia-white-list-2"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Inorganics","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:adc12d039e5c4172a575d3559b08f1f0","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/adc12d039e5c4172a575d3559b08f1f0","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Inorganics, Vol 14, Iss 2, p 33 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.3390/inorganics14020033","doi":"https://doi.org/10.3390/inorganics14020033","is_oa":true,"landing_page_url":"https://doi.org/10.3390/inorganics14020033","pdf_url":"https://www.mdpi.com/2304-6740/14/2/33/pdf?version=1769233835","source":{"id":"https://openalex.org/S2737417813","display_name":"Inorganics","issn_l":"2304-6740","issn":["2304-6740"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","norway-1","poland-20","russia-white-list-2"],"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Inorganics","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.878000020980835,"display_name":"Affordable and clean energy"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7125699366.pdf","grobid_xml":"https://content.openalex.org/works/W7125699366.grobid-xml"},"referenced_works_count":30,"referenced_works":["https://openalex.org/W2042390389","https://openalex.org/W2065641505","https://openalex.org/W2605402330","https://openalex.org/W2755568852","https://openalex.org/W2968725015","https://openalex.org/W3154982659","https://openalex.org/W4379207767","https://openalex.org/W4391608468","https://openalex.org/W4392914368","https://openalex.org/W4394013946","https://openalex.org/W4398132860","https://openalex.org/W4398762728","https://openalex.org/W4402370766","https://openalex.org/W4402560347","https://openalex.org/W4402695183","https://openalex.org/W4402739448","https://openalex.org/W4402747541","https://openalex.org/W4406175533","https://openalex.org/W4407425110","https://openalex.org/W4408925891","https://openalex.org/W4409109930","https://openalex.org/W4409534131","https://openalex.org/W4410244643","https://openalex.org/W4410602773","https://openalex.org/W4411369723","https://openalex.org/W4411394273","https://openalex.org/W4412434851","https://openalex.org/W4412435761","https://openalex.org/W4412470051","https://openalex.org/W4413146020"],"related_works":["https://openalex.org/W4411066997","https://openalex.org/W2605402330","https://openalex.org/W7213968749","https://openalex.org/W4393188049","https://openalex.org/W4405595843","https://openalex.org/W7118790016","https://openalex.org/W2735327031","https://openalex.org/W2961134656","https://openalex.org/W2991703919","https://openalex.org/W7159595286"],"abstract_inverted_index":{"Supercapacitors":[0],"have":[1],"attracted":[2],"significant":[3],"interest":[4],"as":[5,108,114,172],"increased":[6],"energy":[7,127,179],"storage":[8,180],"devices":[9],"due":[10],"to":[11,85],"their":[12],"high":[13,69],"power":[14,120],"density,":[15],"rapid":[16],"charge/discharge":[17,143],"performance,":[18,71],"and":[19,28,34,45,58,112,133,153],"long":[20],"cyclability.":[21,161],"In":[22],"this":[23],"study,":[24],"NiO,":[25],"Co3O4,":[26],"NCO,":[27],"NCO/rGO":[29,66,113],"composite":[30,53,171],"electrodes":[31],"were":[32,54],"prepared":[33],"evaluated":[35,63],"for":[36,177],"high-performance":[37],"supercapacitor":[38,103],"applications.":[39],"The":[40],"uniform":[41],"distribution":[42],"of":[43,49,76,90,98,122,129,137,149,157,168],"elements":[44],"the":[46,52,62,65,86,94,109,115,145,165,169],"effective":[47],"incorporation":[48],"rGO":[50],"into":[51],"confirmed":[55],"by":[56],"structural":[57],"morphological":[59],"characterizations.":[60],"Among":[61],"materials,":[64],"electrode":[67,111,117,175],"exhibited":[68],"electrochemical":[70],"delivering":[72],"a":[73,81,119,134,154],"specific":[74,135],"capacitance":[75,136,152],"998":[77],"F":[78,139],"g\u22121":[79],"in":[80],"three-electrode":[82],"configuration,":[83],"attributed":[84],"enhanced":[87,95],"redox":[88],"activity":[89],"NiCo2O4":[91],"coupled":[92],"with":[93,105],"electrical":[96],"conductivity":[97],"rGO.":[99],"Additionally,":[100],"an":[101,126,173],"asymmetric":[102],"device":[104,146],"activated":[106],"carbon":[107],"negative":[110],"positive":[116],"showed":[118],"density":[121,128],"750":[123],"W":[124],"kg\u22121,":[125,132],"29.2":[130],"Wh":[131],"93.7":[138],"g\u22121.":[140],"After":[141],"5000":[142],"cycles,":[144],"maintained":[147],"85%":[148],"its":[150],"initial":[151],"coulombic":[155],"efficiency":[156],"99%,":[158],"demonstrating":[159],"exceptional":[160],"These":[162],"results":[163],"highlight":[164],"strong":[166],"potential":[167],"NiCo2O4/rGO":[170],"advanced":[174],"material":[176],"next-generation":[178],"systems.":[181]},"counts_by_year":[{"year":2026,"cited_by_count":5}],"updated_date":"2026-11-14T11:04:58.165337","created_date":"2026-01-27T00:00:00"}
