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DOI | 10.1038/ncomms14879 |
Photoinduced hydrogen release from hydrogen boride sheets | |
Kawamura, Reiya1; Nguyen Thanh Cuong2; Fujita, Takeshi3; Ishibiki, Ryota4; Hirabayashi, Toru1; Yamaguchi, Akira1; Matsuda, Iwao5; Okada, Susumu2; Kondo, Takahiro6,7,8; Miyauchi, Masahiro1 | |
2019-10-25 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Hydrogen boride nanosheets (HB sheets) are facilely synthesized via ion-exchange treatment on magnesium diboride (MgB2) in an acetonitrile solution. Optical absorption and fluorescence spectra of HB sheets indicate that their bandgap energy is 2.8 eV. According to first-principles calculations, optical absorption seen at 2.8 eV is assigned to the electron transition between the sigma-bonding states of B and H orbitals. In addition, density functional theory (DFT) calculations suggest the other allowed transition from the s-bonding state of B and H orbitals to the antibonding state with the gap of 3.8 eV. Significant gaseous H-2 release is found to occur only under photoirradiation, which causes the electron transition from the s-bonding state to the antibonding state even under mild ambient conditions. The amount of H-2 released from the irradiated HB sheets is estimated to be 8 wt%, indicating that the sheets have a high H-2-storage capacity compared with previously reported metal H-2-storage materials. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000492835100018 |
WOS关键词 | AQUEOUS DISPERSIONS ; MAGNESIUM DIBORIDE ; BORON ; NANOSHEETS ; EXFOLIATION ; GRAPHENE ; HYDRIDE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203276 |
专题 | 资源环境科学 |
作者单位 | 1.Tokyo Inst Technol, Dept Mat Sci & Engn, Tokyo 1528552, Japan; 2.Univ Tsukuba, Fac Pure & Appl Sci, Dept Phys, Tsukuba, Ibaraki 3058571, Japan; 3.Kochi Univ Technol, Sch Environm Sci & Engn, Kochi 7828502, Japan; 4.Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan; 5.Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan; 6.Univ Tsukuba, Fac Pure & Appl Sci, Dept Mat Sci, Tsukuba, Ibaraki 3058573, Japan; 7.Univ Tsukuba, Fac Pure & Appl Sci, Tsukuba Res Ctr Energy Mat Sci, Tsukuba, Ibaraki 3058573, Japan; 8.Tokyo Inst Technol, Mat Res Ctr Element Strategy, Yokohama, Kanagawa 2268503, Japan |
推荐引用方式 GB/T 7714 | Kawamura, Reiya,Nguyen Thanh Cuong,Fujita, Takeshi,et al. Photoinduced hydrogen release from hydrogen boride sheets[J]. NATURE COMMUNICATIONS,2019,10. |
APA | Kawamura, Reiya.,Nguyen Thanh Cuong.,Fujita, Takeshi.,Ishibiki, Ryota.,Hirabayashi, Toru.,...&Miyauchi, Masahiro.(2019).Photoinduced hydrogen release from hydrogen boride sheets.NATURE COMMUNICATIONS,10. |
MLA | Kawamura, Reiya,et al."Photoinduced hydrogen release from hydrogen boride sheets".NATURE COMMUNICATIONS 10(2019). |
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