| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Production of hydrogen from methanol over Cu/ZnO and Cu/ZnO/Al2O3 catalysts prepared by homogeneous precipitation : Steam reforming and oxidative steam reforming |
|
言語 |
en |
| 作成者 |
Shishido, Tetsuya
Yamamoto, Yoshihiro
Morioka, Hiroyuki
Takehira, Katsuomi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2006 Elsevier B.V. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Hydrogen production |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
steam reforming |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
methanol |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Cu/ZnO/Al2O3 catalyst |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
homogeneous precipitation |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
570 |
| 内容記述 |
|
|
内容記述 |
Two series of Cu/ZnO and Cu/ZnO/Al2O3 catalysts with varying Cu/Zn ratio have been prepared by the homogeneous precipitation (hp) method using urea hydrolysis. Steam reforming and oxidative steam reforming of methanol were performed using the hp-Cu/Zn-based catalysts for catalytic production of hydrogen. The hp-Cu/ZnO/Al2O3 catalyst showed a higher activity than the hp-Cu/ZnO catalysts. In both cases, the catalytic activity was well correlated with the surface area of Cu metal, and the maximum activity was obtained on the hp-Cu/ZnO/Al2O3 catalyst with the Cu/Zn ratio of 1/1. Although a large amount of Cu+ was detected on the surface of the Cu/Zn-based catalysts after the reduction at 260 °C, no obvious correlation was observed between the activity and the surface amount of Cu+. The hp-Cu/ZnO/Al2O3 catalyst showed a high and stable activity not only for steam reforming but also for oxidative steam reforming of methanol, and the latter reaction effectively produced H2 with a low CO selectivity at a low temperature around 200 °C. It was confirmed by the temperature-programmed desorption experiments that CH3OH was first dehydrogenated to HCHO, which then underwent a nucleophilic attack of H2O to form HCOOH, followed by the decomposition to H2 and CO2 on the hp-Cu/Zn-based catalysts. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier Science B.V. |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.molcata.2006.12.018 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1016/j.molcata.2006.12.018 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1381-1169 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA11036242 |
| 開始ページ |
|
|
開始ページ |
185 |
| 書誌情報 |
Journal of Molecular Catalysis A:Chemical
Journal of Molecular Catalysis A:Chemical
巻 268,
号 1-2,
p. 185-194,
発行日 2006-05-01
|
| 旧ID |
20599 |
JMolCatA_268-1-2_185.pdf (945.8 KB)
