Abstract
The textural (Brunauer–Emmett–Teller (BET)/density functional theory (DFT) surface energy) and chemical (oxygen-containing functional groups) properties of activated carbon fibers (ACFs) according to the electron-beam (E-beam) dose were investigated, and their dimethyl methylphosphonate (DMMP) gas sensing ability was tested. The E-beam attacked the basal plane in ACFs and generated additional lattice defects. The E-beam-irradiated ACFs exhibited a 22.2% change in resistance when upon exposure to DMMP gas. After E-beam irradiation, the surface energy of the ACFs increased because of increased roughness and oxygen-containing functional group content. As a result, the number of active sites capable of detecting DMMP increased, and the sensitivity increased.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
