Photoelectrochemical Hydrogen Generation Using C-dot/ZnO Hierarchical Nanostructure as an Efficient Photoanode. Issue 6 (1st January 2015)

• Record Type: Journal Article
• Authors: Kim, Heejin; Kwon, Woosung; Choi, Mingi; Rhee, Shi-Woo; Yong, Kijung
• Is Part Of: Journal of the Electrochemical Society. Volume 162:Issue 6(2015)
• Page Start: H366
• Page End: H370
• Publication Date: 2015-01-01
• Subjects: carbon nanodot -- Photoelectrochemical hydrogen generation -- ZnO nanorod; Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0751506jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : In this study, we have developed a stable and environmental-friendly photoelectrode of carbon nanodots (C-dots) coupled with a 3 dimensional ZnO structure. Our C-dots are synthesized hydrothermally with a high yield of 40%, and they are successfully anchored onto the ZnO backbone via a facile solution procedure. The as-prepared C-dot/ZnO photoelectrodes have exhibited reasonable photocurrent density and remarkable photostability under the 1 sun irradiation condition without any sacrificial reagent. We have studied the chemistry beneath the C-dot/ZnO interface through various spectroscopic and electrochemical techniques. This work could shed light on future application of C-dots in efficient and toxin-free solar water-splitting systems.