과산화수소 용액에 담지 된 활성탄소섬유의 전자선 조사에 따른 일산화질소 가스 감응 = NO Gas Sensing of ACFs Treated by E-beam Irradiation in H2O2 Solution

다국어 초록 (Multilingual Abstract)

In this study, we treated pitch-based activated carbon fibers (ACFs) in hydrogen peroxide using electron beam (E-beam) irradiation to improve nitrogen monoxide (NO) sensing ability as an electrode material of gas sensor.
The specific surface area of ACFs treated by E-beam irradiation with 400 kGy increased from 885 m 2 /g (pristine) to 1160 m 2 /g without any changes in structural property and functional group. The increase in specific surface area of the E-beam irradiated ACFs enhanced NO gas sensing properties such as response time and sensitivity.
When the ACFs irradiated with 400 kGy, response time was remarkably reduced from 360 s to 210 s and sensitivity was increased by 4.5%, compared to the pristine ACFs. These results demonstrate convincingly that surface modification of ACFs using E-beam in hydrogen peroxide solution can enhance textural properties of ACFs and NO gas sensing ability of gas sensor at room temperature.

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