EtOH-TPD 과정에서는 3가지 다른 종류의 탈착 형태가 관찰되었으며, 낮은 온도에서부터 각각 α, β, γ로 표시하였다.
In the EtOH-TPD process, three different types of desorption were observed, and they were indicated as α, β, and γ respectively from low temperatures.