Selective separation and enrichment of semiconducting carbon nanotube using gel and dielectrophoresis and its application for sensor
| Project/Area Number |
23360180
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
SUEHIRO JUNYA 九州大学, システム情報科学研究科(研究院, 教授 (70206382)
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| Co-Investigator(Renkei-kenkyūsha) |
OKADA Tatsuo 九州大学, 大学院・システム情報科学研究院, 教授 (90127994)
NAKANO Michihiko 九州大学, 大学院・システム情報科学研究院, 助教 (00447856)
IMASAKA Kiminobu 九州産業大学, 工学部, 准教授 (40264072)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
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| Keywords | センシングデバイス / カーボンナノチューブ / 誘電泳動 / ガスセンサ / カイラリティ / スピンカラム / ゲル分離 / スピンカラムクロマトグラフィ / 水素ガスセンサ / 白金ナノ粒子 / 触媒 / 電気めっき法 / 界面活性剤 / 半金分離 |
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| Research Abstract |
Carbon nanotube (CNT) gas sensors have received considerable attention because of their outstanding properties. The CNT sensor performance, however, has not been optimized because of the coexistence of CNTs with different electronic properties depending on their chirality. This study demonstrates a chirality-selective fabrication method of the CNT gas sensor using spin-column chromatography and dielectrophoresis (DEP). After passing through three spin-columns, pristine CNTs were separated into three fractions, which contained CNTs with different chiralities. The CNTs in each fraction were trapped on the microelectrodes by DEP to fabricate three CNT gas sensors. Comparison of these CNT gas sensor responses to NO2 gas revealed that the sensor response was dependent on the CNT chirality and could be improved by the chirality separation.
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Report
(4 results)
Research Products
(29 results)
