| 학회 |
한국화학공학회 |
| 학술대회 |
2016년 가을 (10/19 ~ 10/21, 대전컨벤션센터) |
| 권호 |
22권 2호, p.2579 |
| 발표분야 |
KIChE-SCEJ joint symposium(특별 심포지엄) |
| 제목 |
Mesoscale porous inverse opals: characterization of their charge and ion transport properties for photoelectrochemical electrode application |
| 초록 |
Inverse opal (IO) films with mesoporous structures hold promise as high-performance electrodes for various photoelectrochemical devices because of their high specific area as well as their fully connected pore structure. A great challenge to their use is obtaining an intact film of mesoscale colloidal crystals as a template. We demonstrate that a TiO2 mesoscale IO (meso-IO) with sub 100 nm pores is fabricated by using mesoscale colloidal crystals and chemical vapor deposition of TiO2. The charge transport properties of the meso-IO TiO2 films are characterized using the intensity-modulated voltage spectroscopy (IMVS) and intensity-modulated photocurrent spectroscopy (IMPS) techniques. We also characterize the ion diffusivity the meso-IO TiO2 film using the modified Fick’s law with the diffusion-limiting current in the current-voltage characteristic. |
| 저자 |
Jun Hyuk Moon |
| 소속 |
Department of Chemical and Biomolecular Engineering |
| 키워드 |
porous electrode |
| E-Mail |
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| 원문파일 |
초록 보기 |
