| 학회 | 한국화학공학회 |
| 학술대회 | 2017년 봄 (04/26 ~ 04/28, ICC 제주) |
| 권호 | 23권 1호, p.313 |
| 발표분야 | 미립자공학 |
| 제목 | Synthesis of Ultrathin Orthrombic-MoO3 Nanofibers by Electrospinning and Calcination: Control of Morphology and Diameter |
| 초록 | Ultrathin orthorhombic molybdenum trioxide (α-MoO3) nanofibers have been fabricated through an electrospinning and calcination process. The increase in the PVP content caused an increase in the solution viscosity and fiber diameter. At low PVP content, the nanofibers have smaller diameters and are heavily beaded. A decrease in voltage led to small nanofibers, where 8 kV is the optimal voltage level to provide the smallest nanofibers. Moreover, an increased feed rate to 0.5 mL/h led to smaller nanofibers. A decreased conductivity of the spinning solution results in a decrease in the average diameter and increase in the bead density of the resulting nanofibers. In addition, by changing the metal salt concentration, the diameter uniformity of the nanofibers can be controlled. The as-electrospun nanofibers could be subsequently converted into MoO3 nanofibers of an orthorhombic phase, and the α-MoO3 nanofiber average diameter of 31 nm was successfully synthesized via rapid calcination in air at 450 °C for 120 s. This work was also in part supported by the National Research Foundation of Korea grant funded by the Korean Government (MEST)(NRF-20141004176). |
| 저자 | 한요셉1, 명노상2, 김현중1 |
| 소속 | 1전북대, 2Univ. of California-Riverside |
| 키워드 | 미립자 |
| 원문파일 | 초록 보기 |
