| 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 |
Superior catalytic behavior of trace Pt-doped Ni/Mg(Al)O in methane reforming under daily start-up and shut-down operation |
|
言語 |
en |
| 作成者 |
Li, Dalin
Nishida, Kazufumi
Zhan, Yingying
Shishido, Tetsuya
Oumi, Yasunori
Sano, Tsuneji
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) 2008 Published by Elsevier B.V. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
CH4 reforming |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
self activation |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
self-regeneration |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Ni/Mg(Al)O catalyst |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Pt doping |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
daily start-up and shut-down operation |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
430 |
| 内容記述 |
|
|
内容記述 |
Doping effects of Pt and Ru on Ni/Mg(Al)O catalysts were compared in daily start-up and shut-down operations of steam reforming of CH4. Trace Pt-doped catalyst showed better behavior than trace Ru-doped catalyst; the former was self-activated but the latter was not, although both exhibited self-regenerative activity. Moreover, the former exhibited sustainable activity, although the latter was quickly passivated, in the autothermal reforming of CH4. Formation of Pt-Ni alloy on the surface of fine Ni metal particles on the catalysts was suggested by EXAFS analyses. CH4 was dissociatively activated to form hydrogen on Pt, assisted by adsorbed O or OH species, leading to the self activation via Ni reduction by hydrogen spillover from Pt. The self-regeneration of the Pt-Ni/Mg(Al)O catalysts can be achieved by the continuous rebirth of active Ni metal species via reversible reduction-oxidation between Ni0 and Ni2+ in/on Mg(Ni,Al)O periclase assisted by the hydrogen spillover. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier Science BV |
| 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.apcata.2008.08.017 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1016/j.apcata.2008.08.017 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0926-860X |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA10821202 |
| 開始ページ |
|
|
開始ページ |
225 |
| 書誌情報 |
Applied Catalysis A: General
Applied Catalysis A: General
巻 350,
号 2,
p. 225-236,
発行日 2008-11-30
|
| 旧ID |
25943 |
ApplCatalA-Gen_350_225.pdf (758.2 KB)
