용액환원법에 의한 Sn0₂ 2차원 나노구조의 합성과 가스 감응 특성 = Sn0₂ Two-dimensional Nanostructures Prepared by Solution Reduction Method and Their Gas Sensing Characteristics

다국어 초록 (Multilingual Abstract)

SnO nanosheets were prepared at room temperature through a reaction between an aqueous solution of $SnCl_2$, $N_2F_4$, and NaOH and were converted into $SnO_2$ nanosheets without a morphological change. The SnO nanosheets were formed through a dissolution-recrystallization mechanism. Uniform and well-dispersed SnO nanosheets with the round-shape morphology were attained when the solution was treated by ultrasonic sound immediately after the addition of NaOH. The $SnO_2$ nanosheets prepared by means of solution reduction under the ultrasonic treatment, and subsequent oxidation at $600^{\circ}C$ showed a high level of gas sensitivity to $C_2H_5OH$ and $CH_3COCH_3$.