In-situ La doped Co3O4 as highly efficient photocatalyst for solar hydrogen generation
文献类型：期刊论文
| 作者 | Xu, Jing1,2; Huo, Feng3; Zhao, Yufei4; Liu, Yaoyao1; Yang, Qingqing1; Cheng, Yuanhui1; Min, Shixiong2; Jin, Zhiliang2; Xiang, Zhonghua1 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2018-05-03 |
| 卷号 | 43期号:18页码:8674-8682 |
| 关键词 | Co3O4 Water splitting Hydrogen evolution Graphene La doping |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2018.03.126 |
| 英文摘要 | Photocatalytic hydrogen production via water splitting using metal oxide semiconductors has attract great interests because of the two electrons on the kinetics. Pristine Co3O4 was widely studied as efficient photocatalyst, but prefers to produce oxygen due to its lower band-edge positions with regard to water redox potentials. In this work, high efficient photocatalyst basing on non-noble La doped Co3O4 on graphene, i.e., LaxCo3_(x)O4/G, were first reported and prepared by the microwave hydrothermal synthesis. In this newly developed hybrids, La and Co ions were adsorbed on the surface of graphene (G) and subsequently reacted with ammonia to yield the LaxCo3-xO4/G nanohybrid by in-situ chemical deposition methods. The activity for hydrogen generation of the nanohybrid exhibits 2 times higher than undoped Co3O4/G under visible light irradiation. The H-2 evolution of nanohybrid reaches 6.543 mmol g(-1) h(-1) when the molar ratio of La/Co is 10% in the nanohybrid. Our experimental results indicate the incorporation of La doped in the Co3O4 crystal lattice not only forms the lattice defects, resulting in provision for capture trap and the separation of electrons and holes, but also changes the band structure to eventually improve the photocatalytic activity under visible light. Therefore, non-noble La is a promising substitute to prepare highly efficient hydrogen photocatalyst and can be extendedly applied to the other metal oxide semiconductors for solar hydrogen production. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| WOS关键词 | PHOTOELECTROCHEMICAL WATER OXIDATION ; P-N HETEROJUNCTION ; CHARGE SEPARATION ; ENERGY-CONVERSION ; RESEARCH PROGRESS ; EVOLUTION ; SEMICONDUCTOR ; PHOTOANODES ; PRESSURE ; HEMATITE |
| 资助项目 | Ningxia Higher Institutions Scientific Research Program[NGY2016146] ; NSF of China[51502012] ; NSF of China[21676020] ; NSF of China[21463001] ; NSF of China[21263001] ; Beijing Natural Science Foundation[2162032] ; Beijing University of Chemical Technology[buctrc201420] ; Beijing University of Chemical Technology[buctrc201714] ; Talent cultivation of State Key Laboratory of Organic-Inorganic Composites ; Fundamental Research Funds for the Central Universities[ZY1508] ; Fundamental Research Funds for the Central Universities[buctrc201524] ; BUCT Fund for Disciplines Construction and Development[XK1502] ; BUCT ; 111 Project[B14004] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000432769000009 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Ningxia Higher Institutions Scientific Research Program ; NSF of China ; Beijing Natural Science Foundation ; Beijing University of Chemical Technology ; Talent cultivation of State Key Laboratory of Organic-Inorganic Composites ; Fundamental Research Funds for the Central Universities ; BUCT Fund for Disciplines Construction and Development ; BUCT ; 111 Project |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/24883]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Xiang, Zhonghua |
| 作者单位 | 1.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China 2.North Minzu Univ, Sch Chem & Chem Engn, Yinchuan 750021, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Jing,Huo, Feng,Zhao, Yufei,et al. In-situ La doped Co3O4 as highly efficient photocatalyst for solar hydrogen generation[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(18):8674-8682. |
| APA | Xu, Jing.,Huo, Feng.,Zhao, Yufei.,Liu, Yaoyao.,Yang, Qingqing.,...&Xiang, Zhonghua.(2018).In-situ La doped Co3O4 as highly efficient photocatalyst for solar hydrogen generation.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(18),8674-8682. |
| MLA | Xu, Jing,et al."In-situ La doped Co3O4 as highly efficient photocatalyst for solar hydrogen generation".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.18(2018):8674-8682. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。