Unveiling the effect of the crystalline phases of iron oxyhydroxide for highly sensitive and selective detection of dopamine
DC Field | Value | Language |
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dc.contributor.author | Moolayadukkam, Sreejesh | - |
dc.contributor.author | Vishwanathan, Savithri | - |
dc.contributor.author | Jun, Byeongsun | - |
dc.contributor.author | Lee, Sang Uck | - |
dc.contributor.author | Matte, H. S. S. Ramakrishna | - |
dc.date.accessioned | 2022-09-02T09:28:54Z | - |
dc.date.available | 2022-09-02T09:28:54Z | - |
dc.date.issued | 2021-10 | - |
dc.identifier.issn | 1477-9226 | - |
dc.identifier.issn | 1477-9234 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/110308 | - |
dc.description.abstract | Electrocatalysis is key to the development of several important energy and biosensing applications. In this regard, the crystalline phase-dependent electrocatalytic activity of materials has been extensively studied for reactions such as hydrogen evolution, oxygen reduction, etc. But such comprehensive studies for evaluating the phase-dependence of electrochemical biosensing have not been undertaken. Herein, three crystalline phases (alpha-, beta-, and gamma-) of iron oxyhydroxide (FeOOH) have been synthesized and characterized by spectroscopic and microscopy techniques. Electrochemical studies revealed their high sensitivity and selectivity towards dopamine (DA) detection. Amongst the three electrocatalysts, beta-FeOOH shows the highest sensitivity (337.15 mu A mM(-1) cm(-2)) and the lowest detection limit (0.56 mu M). The enhanced electrocatalytic activity of beta-FeOOH, as compared to that of alpha- and gamma-FeOOH, was attributed to its higher active site percentage and facile electrode kinetics. Furthermore, theoretical studies probed into the DA-FeOOH interactions by evaluating the charge transfer characteristics and hydrogen adsorption energies of the three phases to support the experimental findings. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Unveiling the effect of the crystalline phases of iron oxyhydroxide for highly sensitive and selective detection of dopamine | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1039/d1dt01672e | - |
dc.identifier.scopusid | 2-s2.0-85116610299 | - |
dc.identifier.wosid | 000693596900001 | - |
dc.identifier.bibliographicCitation | Dalton Transactions, v.50, no.38, pp 13497 - 13504 | - |
dc.citation.title | Dalton Transactions | - |
dc.citation.volume | 50 | - |
dc.citation.number | 38 | - |
dc.citation.startPage | 13497 | - |
dc.citation.endPage | 13504 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.subject.keywordPlus | CAPILLARY-ELECTROPHORESIS | - |
dc.subject.keywordPlus | ELECTROCHEMICAL DETECTION | - |
dc.subject.keywordPlus | ELECTRON-TRANSFER | - |
dc.subject.keywordPlus | ASCORBIC-ACID | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | BIOMOLECULES | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2021/DT/D1DT01672E | - |
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