Preparation of defect-rich, N-doped activated carbons via high-energy ball milling and investigation of their electrochemical performances towards hydrogen peroxide sensing

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dc.contributor.authorUzunoglu, Aytekin
dc.contributor.authorKotan, Hasan
dc.contributor.authorKaraagac, Rumeysa
dc.contributor.authorIpekci, Hasan H.
dc.date.accessioned2024-02-23T14:00:01Z
dc.date.available2024-02-23T14:00:01Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractN-doped, defect-rich activated carbons (ACs) were prepared using high-energy ball milling (BM) followed by a heat treatment to prepare metal-free, highly active carbon-based electrocatalysts. To investigate the effect of milling process on the physicochemical and electrochemical properties, a series of milling durations ranging from 2.5 to 15 min were applied. It was seen that while 2.5-min milling process was insufficient to destroy the AC structure and achieve high defect concentration, 5-min milling process yielded a significant change in the X-ray diffraction reflection. X-ray photoelectron spectroscopy results suggested that contents of N-binding sites were altered depending on the milling time. Electrochemical performance results indicated that both N doping and ball milling processes had significant effects on the H2O2 reduction capabilities. N-AC-5BM-based sensors showed a high sensitivity of 301.24 mu A mM(-1) cm(-2), which is 2.5 and 1.7 times greater than pristine AC (119.3 mu A mM(-1) cm(-2)) and N-doped AC (180.6 mu A mM(-1) cm(-2)), respectively. In addition, 5-min ball-milling process widened the linear range profoundly, and a wide linear range of 0.1-52 mM was obtained. The performance of the sensors was compared with both metal-free and noble-metal containing sensors and the findings displayed that N-AC-5BM-based sensors had higher performances than even noble metal-containing sensors.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [118F433]en_US
dc.description.sponsorshipA.U. acknowledges partial financial support of The Scientific and Technological Research Council of Turkey (TUBITAK Project# 118F433).en_US
dc.identifier.doi10.1007/s13204-021-02321-5
dc.identifier.endpage1489en_US
dc.identifier.issn2190-5509
dc.identifier.issn2190-5517
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85124079634en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1475en_US
dc.identifier.urihttps://doi.org/10.1007/s13204-021-02321-5
dc.identifier.urihttps://hdl.handle.net/20.500.12452/11423
dc.identifier.volume12en_US
dc.identifier.wosWOS:000750590000001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofApplied Nanoscienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectActivated Carbonen_US
dc.subjectHigh-Energy Ball Millingen_US
dc.subjectDefect-Rich Structureen_US
dc.subjectElectrochemical Sensoren_US
dc.subjectHydrogen Peroxideen_US
dc.subjectMetal-Free Catalysten_US
dc.titlePreparation of defect-rich, N-doped activated carbons via high-energy ball milling and investigation of their electrochemical performances towards hydrogen peroxide sensingen_US
dc.typeArticleen_US

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