254
0
Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | 성기훈 | - |
| dc.date.accessioned | 2018-03-23T01:45:39Z | - |
| dc.date.available | 2018-03-23T01:45:39Z | - |
| dc.date.issued | 2014-04 | - |
| dc.identifier.citation | Sensors & Actuators: B. Chemical, 31 March 2014, 193, 815-822 | en_US |
| dc.identifier.issn | 0925-4005 | - |
| dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0925400513015074 | - |
| dc.identifier.uri | http://hdl.handle.net/20.500.11754/51016 | - |
| dc.description.sponsorship | 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 ?0.5V and +0.1V, respectively. Scanning electron microscope images indicated that the diameters of spherical Pd particles and urchin-like Pd particles were in the range of 50?100nm and 300?400nm, 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 0.25μM (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 2μM to 238μM (R2=0.995) and the other from 283μM to 1230μM (R2=0.998). The corresponding sensitivities were 417μAmM?1cm?2 and 192μAmM?1cm?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. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier B.V | en_US |
| dc.subject | Carbon nanotube | en_US |
| dc.subject | Palladium nanoparticle | en_US |
| dc.subject | Nitrite detection | en_US |
| dc.subject | Electrochemical deposition | en_US |
| dc.title | Electrochemical detection of nitrite using urchin-like palladium nanostructures on carbon nanotube thin film electrodes | en_US |
| dc.type | Article | en_US |
| dc.relation.volume | 193 | - |
| dc.identifier.doi | 10.1016/j.snb.2013.12.034 | - |
| dc.relation.page | 815-822 | - |
| dc.relation.journal | SENSORS AND ACTUATORS B-CHEMICAL | - |
| dc.contributor.googleauthor | Pham, Xuan-Hung | - |
| dc.contributor.googleauthor | Li, Cheng Ai | - |
| dc.contributor.googleauthor | Han, Kwi Nam | - |
| dc.contributor.googleauthor | Huynh-Nguyen, Buu-Chau | - |
| dc.contributor.googleauthor | Le, Thanh-Hai | - |
| dc.contributor.googleauthor | Ko, Euna | - |
| dc.contributor.googleauthor | Kim, Ji Hye | - |
| dc.contributor.googleauthor | Seong, Gi Hun | - |
| dc.relation.code | 2014039365 | - |
| dc.sector.campus | S | - |
| dc.sector.daehak | GRADUATE SCHOOL[S] | - |
| dc.sector.department | DEPARTMENT OF BIONANOTECHNOLOGY | - |
| dc.identifier.pid | ghseong | - |
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > ETC
- Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
