| 학회 |
한국재료학회 |
| 학술대회 |
2014년 봄 (05/15 ~ 05/16, 창원컨벤션센터) |
| 권호 |
20권 1호 |
| 발표분야 |
B. 나노 재료(Nanomaterials) |
| 제목 |
Ni2O3-decorated In2O3 nanostructures for highly sensitive methane detection |
| 초록 |
Methane is a highly flammable gas that explodes in the air when reacting with other pollutants. The explosive limit of methane gas is 5%. However, detection of lower concentrations is necessary for prevention and warning purposes in a leaking system. We developed a simple method of fabricating thin films of granular indium oxide (In2O3) particles decorated with Ni2O3 nanoparticles for a high-response methane gas sensor. The In2O3 granular film was fabricated by sputter-deposition of indium followed by oxidation. Ni nanoparticles were deposited onto the In2O3 film by the arc-discharge deposition of single-wall carbon nanotubes followed by the burning out of these nanotubes. The catalyst Ni nanoparticles distributed in the single-wall carbon nanotubes were oxidized to Ni2O3. The sensors exhibited tens of % response per 100 ppm methane gas concentration. |
| 저자 |
Nguyen Minh Vuong1, Nguyen Minh Hieu1, Hwanpyo Yi1, Dojin Kim1, Hyojin Kim1, Byung Il Choi2, Myungbae Kim2
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| 소속 |
1Chungnam National Univ., 2Korea Inst. Machinery & Materials |
| 키워드 |
Indium oxides; nickel oxide; nanowire; gas sensor.
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| E-Mail |
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