Improved reversible dehydrogenation properties of MgH2 by the synergetic effects of graphene oxide-based porous carbon and TiCl3
文献类型：期刊论文
| 作者 | Wang, KK; Wu, GL; Cao, HJ; Li, HL; Zhao, XS; Wang, KK (reprint author), Qingdao Univ, Coll Mat Sci & Engn, Inst Mat Energy & Environm, Growing Basis State Key Lab,Lab New Fiber Mat & M, Qingdao 266071, Peoples R China. |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2018-04-12 |
| 卷号 | 43期号:15页码:7440-7446 |
| 关键词 | Hydrogen Sorption Kinetics Magnesium Hydride 2libh(4)-mgh2 Composite Storage Performance Desorption Nano Nanoparticles Nanosheets Destabilization Enhancement |
| ISSN号 | 0360-3199 |
| 英文摘要 | In this study, we used a combination of graphene oxide-based porous carbon (GC) and titanium chloride (TiCl3) to improve the reversible dehydrogenation properties of magnesium hydride (MgH2). Examining the effects of GC and TiCl3 on the hydrogen storage properties of MgH2, the study found GC was a useful additive as confinement medium for promoting the reversible dehydrogenation of MgH2. And TiCl3 was an efficient catalytic dopant. A series of controlled experiments were carried out to optimize the sample preparation method and the addition amount of GC and TiCl3. In comparison with the neat MgH2 system, the MgH2/GC-TiCl3 composite prepared under optimized conditions exhibited enhanced dehydrogenation kinetics and lower dehydrogenation temperature. A combination of phase/microstructure/chemical state analyses has been conducted to gain insight into the promoting effects of GC and TiCl3 on the reversible dehydrogenation of MgH2. Our study found that GC was a useful scaffold material for tailoring the nanophase structure of MgH2. And TiCl3 played an efficient catalytic effect. Therefore, the remarkably improved dehydrogenation properties of MgH2 should be attributed to the synergetic effects of nanoconfinement and catalysis. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.; In this study, we used a combination of graphene oxide-based porous carbon (GC) and titanium chloride (TiCl3) to improve the reversible dehydrogenation properties of magnesium hydride (MgH2). Examining the effects of GC and TiCl3 on the hydrogen storage properties of MgH2, the study found GC was a useful additive as confinement medium for promoting the reversible dehydrogenation of MgH2. And TiCl3 was an efficient catalytic dopant. A series of controlled experiments were carried out to optimize the sample preparation method and the addition amount of GC and TiCl3. In comparison with the neat MgH2 system, the MgH2/GC-TiCl3 composite prepared under optimized conditions exhibited enhanced dehydrogenation kinetics and lower dehydrogenation temperature. A combination of phase/microstructure/chemical state analyses has been conducted to gain insight into the promoting effects of GC and TiCl3 on the reversible dehydrogenation of MgH2. Our study found that GC was a useful scaffold material for tailoring the nanophase structure of MgH2. And TiCl3 played an efficient catalytic effect. Therefore, the remarkably improved dehydrogenation properties of MgH2 should be attributed to the synergetic effects of nanoconfinement and catalysis. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| 资助机构 | China Postdoctoral Science Foundation [2016M592138]; Natural Science Foundation of Shandong Province [ZR2016EMB15]; Qingdao Postdoctoral Applied Research Project [2016018]; National Outstanding Youth Science Foundation of China [51125003]; Thousand Talents Plan; Taishan Scholar's Advantageous and Distinctive Discipline Program of Shandong Province; world-Class Discipline Program of Shandong Province |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79366]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, KK (reprint author), Qingdao Univ, Coll Mat Sci & Engn, Inst Mat Energy & Environm, Growing Basis State Key Lab,Lab New Fiber Mat & M, Qingdao 266071, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Wang, KK,Wu, GL,Cao, HJ,et al. Improved reversible dehydrogenation properties of MgH2 by the synergetic effects of graphene oxide-based porous carbon and TiCl3[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(15):7440-7446. |
| APA | Wang, KK,Wu, GL,Cao, HJ,Li, HL,Zhao, XS,&Wang, KK .(2018).Improved reversible dehydrogenation properties of MgH2 by the synergetic effects of graphene oxide-based porous carbon and TiCl3.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(15),7440-7446. |
| MLA | Wang, KK,et al."Improved reversible dehydrogenation properties of MgH2 by the synergetic effects of graphene oxide-based porous carbon and TiCl3".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.15(2018):7440-7446. |
入库方式： OAI收割
来源：金属研究所
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