| Title | Exploratory Study of ZnxPbOy Photoelectrodes for Unassisted Overall Solar Water Splitting |
| Authors | Lin, He Long, Xia Hu, Jue Qu, Yongcai Wang, Zilong Ma, Ming An, Yiming Yang, Shihe |
| Affiliation | Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China. Peking Univ, Guangdong Key Lab Nanomicro Mat Res, Sch Chem Biol & Biotechnol, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China. Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China. Yang, SH (reprint author), Peking Univ, Guangdong Key Lab Nanomicro Mat Res, Sch Chem Biol & Biotechnol, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China. |
| Keywords | ZnxPbOy photoelectrodes photoelectrochemical solar water splitting unassisted overall cocatalyst HYDROGEN EVOLUTION REACTION TA3N5 NANOROD ARRAYS DOPED ZNO NANOWIRES VISIBLE-LIGHT OPTICAL-PROPERTIES BISMUTH VANADATE SILICON PHOTOCATHODES CATHODE BUFFER AIR-STABILITY EFFICIENT |
| Issue Date | 2018 |
| Publisher | ACS APPLIED MATERIALS & INTERFACES |
| Citation | ACS APPLIED MATERIALS & INTERFACES. 2018, 10(13), 10918-10926. |
| Abstract | A complete photoelectrochemical (PEC) water splitting system requires a photocathode and a photoanode to host water oxidation and reduction reactions, respectively. It is thus important to search for efficient photoelectrodes capable of full water splitting. Herein, we report on an exploratory study of a new photoelectrode family of ZnxPbOy-ZnPbO3 and Zn2PbO4 similarly synthesized by a simple and economical method and shown to be a promising photocathode (p-type semiconductor) and photoanode (n-type semiconductor), respectively. From PEC measurements, the bare ZnPbO3 photocathode achieved a photocurrent density of -0.94 mA/cm(2) at 0 V versus reversible hydrogen electrode (RHE), whereas the pristine Zn2PbO4 photoanode delivered a photocurrent density of 0.51 mA/cm(2) at 1.23 V versus RHE. By depositing suitable cocatalysts onto the photoelectrodes established above, we also demonstrated unassisted overall PEC water splitting, a rare case, if any, wherein a single material system is compositionally engineered for either of the photoelectrodes. |
| URI | http://hdl.handle.net/20.500.11897/513115 |
| ISSN | 1944-8244 |
| DOI | 10.1021/acsami.8b00421 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 化学生物学与生物技术学院 |
