Controlled Synthesis of Vertically Aligned Hematite on Conducting Substrate for Photoelectrochemical Cells: Nanorods versus Nanotubes
- Authors
- Mao, Aiming; Shin, Kahee; Kim, Jung Kyu; Wang, Dong Hwan; Han, Gui Young; Park, Jong Hyeok
- Issue Date
- Jun-2011
- Publisher
- AMER CHEMICAL SOC
- Keywords
- hematite; hydrogen; nanotube; water splitting
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.3, no.6, pp 1852 - 1858
- Pages
- 7
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 3
- Number
- 6
- Start Page
- 1852
- End Page
- 1858
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/42141
- DOI
- 10.1021/am200407t
- ISSN
- 1944-8244
1944-8252
- Abstract
- This paper describes two different processes to synthesize vertically aligned hematite nanorod and nanotube arrays, respectively, on a conductive substrate by the electrochemical deposition method with the help of an anodized aluminum oxide nanotemplate. The two types of nanostructured hematite were used as the photoanode for photoelectrochemical cells. The hematite nanotubes exhibited much higher photoelectrochemical activity than the hematite nanorods, including an improved photocurrent density, more negative onset potential, better photon harvesting, and better charge carrier transfer ability. The observed behavior may offer new information to enhance the photocatalytic ability of hematite, which is considered to be one of the best photoanode materials in the research field of photoelectrochemical cells.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of ICT Engineering > School of Integrative Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.