| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2016-03-25 |
| タイトル |
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タイトル |
Hydroxylated surface of GaAs as a scaffold for heterogeneous Pd catalyst |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Nishiwaki, Nagatoshi
Konishi, Tomoya
Hirao, Shotaro
Yamashita, Yoshiyuki
Yoshikawa, Hideki
Shimoda, Masahiko
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
A novel use of GaAs, namely, as a scaffold for a heterogeneous palladium catalyst, is proposed. Hydroxy groups on the GaAs surface play important roles. During the adsorption of Pd(OAc)_2 on the GaAs surface, the hydroxy groups attract Pd(II) species by anion exchange. A subsequent redox reaction proceeds to generate Pd(0) nanoparticles, which are stabilized on the GaAs surface. This process is confirmed by surface-sensitive measurements: diffuse reflection IR spectroscopy and X-ray photoelectron spectroscopy. Moreover, a more bulk-sensitive measurement, hard X-ray photoemission spectroscopy with synchrotron radiation, also supported our considerations. The amounts of Pd(0) nanoparticles on the surface were evaluated by catalytic activity, yield, and recyclability in the Heck reaction, in addition to the deposit test. |
| 書誌情報 |
Physical Chemistry Chemical Physics
巻 14,
号 4,
p. 1424-1430,
発行日 2012
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| DOI |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
10.1039/C1CP22537E |
| 権利（URI） |
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権利情報 |
http://pubs.rsc.org/en/content/articlelanding/2012/cp/c1cp22537e#!divAbstract | http://pubs.rsc.org/en/content/articlelanding/2012/cp/c1cp22537e#!divAbstract |
| 著者版フラグ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
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出版者 |
Royal Society of Chemistry |
27-19.pdf (401.5 kB)
