Moisture-Assisted Preparation of Compact GaN:ZnO Photoanode Toward Efficient Photoelectrochemical Water Oxidation
文献类型：期刊论文
| 作者 | Wang, Zhiliang1,2; Han, Jingfeng1; Li, Zheng1,2; Li, Mingrun1; Wang, Hong1,2; Zong, Xu1; Li, Can1 |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2016-10-26 |
| 卷号 | 6期号:20 |
| 关键词 | Charge Transportation Gan:Zno Moisture Photoelectrodes Solar Energy |
| ISSN号 | 1614-6832 |
| DOI | 10.1002/aenm.201600864 |
| 文献子类 | Article |
| 英文摘要 | Developing strategies that can promote charge transportation in photodevices is crucial for achieving high solar energy conversion efficiency. Herein a moisture-assisted nitridation approach is presented for the fabrication of efficient gallium-zinc oxynitride (GaN:ZnO) photoanode with compact structure to facilitate the charge transportation. With moisture-assisted nitridation, the charge separation efficiency and injection efficiency obtained on GaN:ZnO photoanode are significantly enhanced. Correspondingly, the photocurrent at 1.23 V vs reversible hydrogen electrode (RHE) has 18 folds improvement compared with that prepared without moisture assistance. Furthermore, via treating with HCl acid and modification with cobalt phosphate (CoPi) as a cocatalyst, state-of-the-art photocurrent over 2.0 mA cm(-2) is achieved on independent GaN:ZnO photoanode when bias is higher than 1.4 V vs RHE. To the best of our knowledge, this is the first paradigm of moisture-assisted preparing oxynitride-based photoanode. The participation of moisture is found to improve the interconnection between adjacent GaN:ZnO nanoparticles as well as that between the GaN:ZnO film and the underlying substrate. Moreover, the volatilization of Zn can be substantially suppressed due to the modulation of reaction pathway by moisture. These two factors are confirmed to be the main reasons for the enhanced charge transportation and PEC performance obtained on GaN:ZnO photoanode. |
| WOS关键词 | VISIBLE-LIGHT IRRADIATION ; HYDROGEN-PRODUCTION ; (GA1-XZNX)(N1-XOX) NANOCRYSTALS ; HEMATITE PHOTOANODE ; SOLID-SOLUTION ; PHOTOCATALYST ; PERFORMANCE ; NITRIDE ; ABSORPTION ; CATALYSTS |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000387136300008 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168306]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zong, Xu; Li, Can |
| 作者单位 | 1.Chinese Acad Sci, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhiliang,Han, Jingfeng,Li, Zheng,et al. Moisture-Assisted Preparation of Compact GaN:ZnO Photoanode Toward Efficient Photoelectrochemical Water Oxidation[J]. ADVANCED ENERGY MATERIALS,2016,6(20). |
| APA | Wang, Zhiliang.,Han, Jingfeng.,Li, Zheng.,Li, Mingrun.,Wang, Hong.,...&Li, Can.(2016).Moisture-Assisted Preparation of Compact GaN:ZnO Photoanode Toward Efficient Photoelectrochemical Water Oxidation.ADVANCED ENERGY MATERIALS,6(20). |
| MLA | Wang, Zhiliang,et al."Moisture-Assisted Preparation of Compact GaN:ZnO Photoanode Toward Efficient Photoelectrochemical Water Oxidation".ADVANCED ENERGY MATERIALS 6.20(2016). |
入库方式： OAI收割
来源：大连化学物理研究所
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