Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 좌용호 | - |
dc.date.accessioned | 2020-01-22T07:33:48Z | - |
dc.date.available | 2020-01-22T07:33:48Z | - |
dc.date.issued | 2019-12 | - |
dc.identifier.citation | ACS APPLIED MATERIALS & INTERFACES, v. 11, No. 50, Page. 47015-47024 | en_US |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | https://pubs.acs.org/doi/abs/10.1021/acsami.9b12604 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/122224 | - |
dc.description.abstract | We present a thermochemical hydrogen (TCH) gas sensor fabricated with Pt-decorated exfoliated graphene sheets and a tellurium nanowire-based thermoelectric (TNTE) layer operating at room temperature in wet air. The sensor device was able to detect 50 ppm to 3% of hydrogen gas within several seconds (response/recovery times of 6/5.1 s at 4000 ppm of hydrogen gas) at room temperature due to the relatively high surface area of homogeneously dispersed Pt nanocrystals (similar to 8 nm) decorated on graphene sheets and the excellent Seebeck coefficient (428 mu 4V/K) of the TNTE layer. Furthermore, it was observed that the effect of the relative humidity on sensing properties was greatly minimized by incorporating Pt-decorated graphene sheets. These results indicate that our device has great potential as a low power consumption gas sensor for IoTs. | en_US |
dc.description.sponsorship | This research was supported by Nano.Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (No. 2016M3A7B4900044), by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2015R1ASA1037548), and by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. NRF-2018R1A6A1A03024231). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | hydrogen gas sensor | en_US |
dc.subject | tellurium nanowires | en_US |
dc.subject | thermoelectric gas sensor | en_US |
dc.subject | Pt-decorated graphene | en_US |
dc.subject | hydrogen oxidation catalyst | en_US |
dc.title | Pt/graphene Catalyst and Tellurium Nanowire-based Thermochemical Hydrogen (TCH) Sensor Operating at Room Temperature in Wet Air | en_US |
dc.type | Article | en_US |
dc.relation.no | 50 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1021/acsami.9b12604 | - |
dc.relation.page | 47015-47024 | - |
dc.relation.journal | ACS APPLIED MATERIALS & INTERFACES | - |
dc.contributor.googleauthor | Hwang, T.-Y. | - |
dc.contributor.googleauthor | Go, G.-M. | - |
dc.contributor.googleauthor | Park, S. | - |
dc.contributor.googleauthor | Lee, J. | - |
dc.contributor.googleauthor | Cho, H.-B. | - |
dc.contributor.googleauthor | Choa, Y.-H. | - |
dc.contributor.googleauthor | Song, Y. | - |
dc.contributor.googleauthor | Kim, S. | - |
dc.relation.code | 2019002549 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | choa15 | - |
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