| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.888 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Doping NiTiO3 materials with cobalt and tungsten: Effects on structural and optical properties |
| 초록 |
NiTiO3 materials doped with cobalt (Co) or tungsten (W) were prepared by a modified Pechini method through a solvothermal treatment. The prepared Co-doped and W-doped NiTiO3 powders were characterized by X-ray diffraction (XRD), Raman, Fourier-transform infrared spectroscopy (FTIR), Scanning Electron Microscope (SEM), UV−vis absorption spectroscopy, photoluminescence spectra (PL) and BET surface areas. The results show that Co2+ ions preferred selectively doped into Ni2+ sites in the NiTiO3 lattice and maintained an ilmenite structure while the W doping into the ilmenite structure resulted in an irregularity in the materials with decreasing crystallite size. As for optical properties of the materials, the PL emission intensities decreased with increasing doping content, implying that the recombination process was inhibited to some extent by the dopants. |
| 저자 |
장개명1, Pham Thanh Truc1, Yong Men2, 신은우1
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| 소속 |
1울산대, 2Shanghai Univ. of Engineering Science / College of Chemistry and Chemical Engineering |
| 키워드 |
촉매 및 반응공학 |
| E-Mail |
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| 원문파일 |
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