Electrochemical detection of nitrite using urchin-like palladium nanostructures on carbon nanotube thin film electrodes
DC Field | Value | Language |
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dc.contributor.author | Pham, Xuan-Hung | - |
dc.contributor.author | Li, Cheng Ai | - |
dc.contributor.author | Han, Kwi Nam | - |
dc.contributor.author | Buu-Chau Huynh-Nguyen | - |
dc.contributor.author | Thanh-Hai Le | - |
dc.contributor.author | Ko, Euna | - |
dc.contributor.author | Kim, Ji Hye | - |
dc.contributor.author | Seong, Gi Hun | - |
dc.date.accessioned | 2021-06-23T00:02:36Z | - |
dc.date.available | 2021-06-23T00:02:36Z | - |
dc.date.issued | 2014-03 | - |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/23676 | - |
dc.description.abstract | In this article, urchin-like palladium (Pd) nanostructures were electrochemically deposited onto pre-patterned single-walled carbon nanotube (SWCNT) thin films. X-ray photoelectron spectroscopy and X-ray diffraction techniques were used to characterize the properties of Pd nanostructures on SWCNT thin films. The spherical Pd particles and urchin-like Pd particles were synthesized at -0.5 V and +0.1 V, respectively. Scanning electron microscope images indicated that the diameters of spherical Pd particles and urchin-like Pd particles were in the range of 50-100 nm and 300-400 nm, respectively. Cyclic voltammetry was applied to investigate the urchin-like Pd/SWCNT electrode with nitrite oxidation. Results showed that the current response of urchin-like Pd/SWCNT was 1.5 times greater than that of spherical Pd/SWCNT electrodes. The effects of precursor concentration, accumulated charges, pattern size on the morphology of urchin-like Pd structures were also investigated. The urchin-like Pd NPs/SWCNT electrode displayed a suitable detection limit of 0.25 mu M (S/N = 3) under the controlled condition (de-oxygenated buffer solution at pH 4.0) and two linear ranges with respect to nitrite concentration: one from 2 mu M to 238 mu M (R-2 = 0.995) and the other from 283 mu M to 1230 mu M (R-2 = 0.998). The corresponding sensitivities were 417 mu A mM(-1) cm(-2) and 192 mu A mM(-1) cm(-2), respectively. The presence of K+, Na+, Cl-, PO43-, NH4+, CH3COO-, Zn2+, Mg2+, Ca2+, Cd2+, CO32-, NO3-, and SO42- showed a negligible effect on the current response of nitrite determination, suggesting that developed sensors have a suitable degree of tolerance to common ions that can cause interference. (C) 2013 Elsevier B.V. All rights reserved. | - |
dc.format.extent | 8 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Electrochemical detection of nitrite using urchin-like palladium nanostructures on carbon nanotube thin film electrodes | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.1016/j.snb.2013.12.034 | - |
dc.identifier.scopusid | 2-s2.0-84891792923 | - |
dc.identifier.wosid | 000330113600113 | - |
dc.identifier.bibliographicCitation | SENSORS AND ACTUATORS B-CHEMICAL, v.193, pp 815 - 822 | - |
dc.citation.title | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.citation.volume | 193 | - |
dc.citation.startPage | 815 | - |
dc.citation.endPage | 822 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Instruments & Instrumentation | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Instruments & Instrumentation | - |
dc.subject.keywordPlus | N-NITROSO COMPOUNDS | - |
dc.subject.keywordPlus | ELECTROCATALYTIC REDUCTION | - |
dc.subject.keywordPlus | SELECTIVE DETERMINATION | - |
dc.subject.keywordPlus | MEMBRANE ELECTRODES | - |
dc.subject.keywordPlus | RESIDUAL NITRITE | - |
dc.subject.keywordPlus | NITRATE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | PORPHYRINS | - |
dc.subject.keywordAuthor | Carbon nanotube | - |
dc.subject.keywordAuthor | Palladium nanoparticle | - |
dc.subject.keywordAuthor | Nitrite detection | - |
dc.subject.keywordAuthor | Electrochemical deposition | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0925400513015074?via%3Dihub | - |
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