NO Gas Sensing of ACFs Treated by E-beam Irradiation in H2O2Solution | Zendy

Sang-Min Lee | Zendy; Mi-Seon Park | Zendy; Min-Jung Jung | Zendy; YoungSeak Lee | Zendy

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NO Gas Sensing of ACFs Treated by E-beam Irradiation in H₂O₂Solution

Author(s) -

Sang-Min Lee,

Mi-Seon Park,

Min-Jung Jung,

YoungSeak Lee

Publication year - 2016

Publication title -

journal of hydrogen and new energy

Language(s) - English

Resource type - Journals

eISSN - 2288-7407

pISSN - 1738-7264

DOI - 10.7316/khnes.2016.27.3.298

Subject(s) - irradiation , hydrogen peroxide , beam (structure) , materials science , carbon monoxide , nitrogen , hydrogen , analytical chemistry (journal) , electrode , activated carbon , nuclear chemistry , chemistry , optics , adsorption , organic chemistry , physics , nuclear physics , catalysis

>> 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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