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Improvement of Gas Sensing Characteristics by Adding Pt Nanoparticles on ZnO-Branched SnO2 Nanowires.
J Nanosci Nanotechnol 2015; 15(11):8571-6JN

Abstract

We coated zinc-oxide (ZnO)-branched tin oxide (SnO2) nanowires with a Pt shell layer via a sputtering method and subsequently annealed the composite to generate Pt nanoparticles. The spillover effect of Pt nanoparticles was expected to play a significant role in enhancing the response. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy revealed that the nanoparticles were comprised of a cubic Pt phase. A sensing test with NO2 gas revealed that the sensor response to NO2 gas was significantly increased, being related to the spillover effect of the Pt nanoparticles. As a result of the Pt-functionalization, the sensor response time and recovery time were decreased and increased, respectively. The high sensor response and fast response time make Pt-functionalized ZnO branched nanowires a promising candidate for gas sensors. The present work will be useful in exploring new areas of multiple-component nanosystems.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26726554

Citation

Na, Han Gil, et al. "Improvement of Gas Sensing Characteristics By Adding Pt Nanoparticles On ZnO-Branched SnO2 Nanowires." Journal of Nanoscience and Nanotechnology, vol. 15, no. 11, 2015, pp. 8571-6.
Na HG, Kwon YJ, Cho HY, et al. Improvement of Gas Sensing Characteristics by Adding Pt Nanoparticles on ZnO-Branched SnO2 Nanowires. J Nanosci Nanotechnol. 2015;15(11):8571-6.
Na, H. G., Kwon, Y. J., Cho, H. Y., Kang, S. Y., & Kim, H. W. (2015). Improvement of Gas Sensing Characteristics by Adding Pt Nanoparticles on ZnO-Branched SnO2 Nanowires. Journal of Nanoscience and Nanotechnology, 15(11), pp. 8571-6.
Na HG, et al. Improvement of Gas Sensing Characteristics By Adding Pt Nanoparticles On ZnO-Branched SnO2 Nanowires. J Nanosci Nanotechnol. 2015;15(11):8571-6. PubMed PMID: 26726554.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Improvement of Gas Sensing Characteristics by Adding Pt Nanoparticles on ZnO-Branched SnO2 Nanowires. AU - Na,Han Gil, AU - Kwon,Yong Jung, AU - Cho,Hong Yeon, AU - Kang,Sung Yong, AU - Kim,Hyoun Woo, PY - 2016/1/5/entrez PY - 2016/1/5/pubmed PY - 2016/1/5/medline SP - 8571 EP - 6 JF - Journal of nanoscience and nanotechnology JO - J Nanosci Nanotechnol VL - 15 IS - 11 N2 - We coated zinc-oxide (ZnO)-branched tin oxide (SnO2) nanowires with a Pt shell layer via a sputtering method and subsequently annealed the composite to generate Pt nanoparticles. The spillover effect of Pt nanoparticles was expected to play a significant role in enhancing the response. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy revealed that the nanoparticles were comprised of a cubic Pt phase. A sensing test with NO2 gas revealed that the sensor response to NO2 gas was significantly increased, being related to the spillover effect of the Pt nanoparticles. As a result of the Pt-functionalization, the sensor response time and recovery time were decreased and increased, respectively. The high sensor response and fast response time make Pt-functionalized ZnO branched nanowires a promising candidate for gas sensors. The present work will be useful in exploring new areas of multiple-component nanosystems. SN - 1533-4899 UR - https://www.unboundmedicine.com/medline/citation/26726554/Improvement_of_Gas_Sensing_Characteristics_by_Adding_Pt_Nanoparticles_on_ZnO_Branched_SnO2_Nanowires_ DB - PRIME DP - Unbound Medicine ER -
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