We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Highly Conformal Deposition of an Ultrathin FeOOH Layer on a Hematite Nanostructure for Efficient Solar Water Splitting.
- Authors
Kim, Jae Young; Youn, Duck Hyun; Kang, Kyoungwoong; Lee, Jae Sung
- Abstract
An ultrathin (ca. 2 nm) amorphous FeOOH overlayer was deposited conformally on a hematite nanostructure by a simple solution-based precipitation method, to generate an oxygen evolution cocatalyst for efficient solar water splitting. This uniform and highly conformal coating of the ultrathin metal oxyhydroxide is rare and is distinguished from the layers prepared by other conventional methods. With the FeOOH overlayer as the cocatalyst, the water oxidation photocurrent of hematite increased by a factor of approximately two and the onset potential shifted in the cathodic direction by 0.12 V under 1 sun illumination. The enhanced performance was attributed to the improved water oxidation kinetics and the passivation of the surface states of the hematite.
- Subjects
FERRIC hydroxides; HEMATITE; WATER electrolysis; NANOSTRUCTURED materials; OXIDATION of water
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 36, p11012
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201605924