Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 성기훈 | - |
dc.date.accessioned | 2018-07-25T06:54:25Z | - |
dc.date.available | 2018-07-25T06:54:25Z | - |
dc.date.issued | 2011-07 | - |
dc.identifier.citation | SENSORS AND ACTUATORS B-CHEMICAL, 권: 155, 호: 1, 페이지: 191-198 | en_US |
dc.identifier.issn | 0925-4005 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0925400510009147?via%3Dihub | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/72926 | - |
dc.description.abstract | Platinum nanoparticles (Pt NPs) were grown directly on multiwall carbon nanotubes (MWNTs) using a wet chemical reduction process. Gas permeable Pt NP-supported MWNT (Pt/MWNT) electrodes were then formed on microporous PTFE membranes through the vacuum-filtration of a Pt/MWNT solution. The potential use of these electrodes in amperometric hydrogen sensor applications was assessed. Various material analysis methods such as SEM, TEM and XRD were employed in order to characterize the morphologies and microstructures of the Pt/MWNT nanocomposites. The electrodes exhibited a nanoporous interwoven surface morphology as a result of Pt agglomerates attached to the MWNTs. From the XRD and TEM measurements, individual polygonal Pt NPs were confirmed to have polycrystalline face-centered cubic (fcc) structures and very small particle sizes of 2-7 nm. The electrode fabrication process was sequentially optimized by adjusting the MWNT content. H(2)PtCl(6) concentration, NaBH(4) concentration, and the drying temperature. At optimized conditions, the Pt/MWNT electrode displayed a high sensitivity greater than 200 mu A/ppm, a fairly good selectivity to interfering CO species, and an excellent linear response over the wide concentration range of 5-1000 ppm. Furthermore, the performances of the electrodes were found to be better than those of binary NP-supported MWNT systems (Pt-Pd/MWNT, Pt-Zn/MWNT, Pt-Ni/MWNT and Pt-ZnO/MWNT). | en_US |
dc.description.sponsorship | This research was mainly supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Nos. 2010-0020638 and 2009-0083917). YSK also thanks the partial financial support from the National Emergency Management Agency. | en_US |
dc.language.iso | en | en_US |
dc.publisher | ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND | en_US |
dc.subject | Hydrogen sensor | en_US |
dc.subject | Amperometric gas sensor | en_US |
dc.subject | Pt/MWNT nanocomposites | en_US |
dc.subject | Electrochemical sensor | en_US |
dc.title | Pt nanoparticle-supported multiwall carbon nanotube electrodes for amperometric hydrogen detection | en_US |
dc.type | Article | en_US |
dc.relation.volume | 155 | - |
dc.identifier.doi | 10.1016/j.snb.2010.11.045 | - |
dc.relation.page | 191-198 | - |
dc.relation.journal | SENSORS AND ACTUATORS B-CHEMICAL | - |
dc.contributor.googleauthor | La, Duc-Duong | - |
dc.contributor.googleauthor | Kim, Chi-Kwan | - |
dc.contributor.googleauthor | Jun, Tae-Sun | - |
dc.contributor.googleauthor | Jung, Yong-ju | - |
dc.contributor.googleauthor | Seong, Gi-Hun | - |
dc.contributor.googleauthor | Choo, Jae-bum | - |
dc.contributor.googleauthor | Kim, Yong-Shin | - |
dc.relation.code | 2011208645 | - |
dc.sector.campus | S | - |
dc.sector.daehak | GRADUATE SCHOOL[S] | - |
dc.sector.department | DEPARTMENT OF BIONANOTECHNOLOGY | - |
dc.identifier.pid | ghseong | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.