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Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction
http://hdl.handle.net/10069/34703
http://hdl.handle.net/10069/3470378d400fe-6849-41e9-a1f0-d5a0450d12d2
| 名前 / ファイル | ライセンス | アクション |
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supplemental_data.pdf (2.8 MB)
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SABC202_748.pdf (12.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2014-09-26 | |||||
| タイトル | ||||||
| タイトル | Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Adsorption/combustion-type gas sensor | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Core/shell nanoparticles | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Gold | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Palladium | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Sonochemical reduction | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Hyodo, Takeo
× Hyodo, Takeo× Yuzuriha, Yasunari× Nakagoe, Osamu× Sasahara, Takahiko× Tanabe, Shuji× Shimizu, Yasuhiro |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Adsorption/combustion-type gas sensors employing mesoporous γ-alumina (mp-Al2O3) powders loaded with core(Au)/shell(Pd) nanoparticles, which were synthesized by sonochemical reduction, (n(Au/Pd)/mp-Al2O3, n: the amount of Au/Pd nanoparticles loaded, (0.1-1.0 wt%), Au:Pd = 1:4 in weight) have been fabricated and their sensing properties to ethanol, toluene and n-hexane have been investigated in air. The n(Au/Pd)/mp-Al2O3 sensors showed larger responses to these target gases at lower temperatures than those of sensors fabricated with mp-Al2O3 powders loaded with Au and Pd by general impregnation technique (n(Au-Pd)/mp-Al2O3 sensors, Au:Pd = 1:4 in weight), especially when the amount of Au and Pd loaded onto the mp-Al2O3 powders was reduced (?0.5 wt%). These sensing properties seem to be largely dependent on the morphological and compositional characteristics of Au and Pd loaded on the γ-alumina surface. In addition, the n(Au/Pd)/mp-Al2O3 sensors showed much larger response to ethanol than those to toluene and n-hexane, probably because of the difference in the magnitude of polarity (dipole moment and dielectric constant) of their molecules. However, the sensors obviously detected even 10 ppm n-hexane with the extremely low dipole moment and dielectric constant. These results promise that the n(Au/Pd)/mp-Al2O3 sensors can detect the lower concentration of these gases as well as other VOCs. | |||||
| 書誌情報 |
Sensors and Actuators B: Chemical 巻 202, p. 748-757, 発行日 2014-10-31 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 09254005 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.snb.2014.06.016 | |||||
| 権利 | ||||||
| 権利情報 | c 2014 Elsevier B.V. All rights reserved. | |||||
| 権利 | ||||||
| 権利情報 | NOTICE: this is the author’s version of a work that was accepted for publication in Sensors and Actuators, B: Chemical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators, B: Chemical, 202, (2014) | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| 引用 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Sensors and Actuators B: Chemical, 202, pp.748-757; 2014 | |||||
