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| 论文题目: | 二腈基衍生物的合成及其光限幅性质 |
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| 作者: | 吴飞鹏 |
| 论文出处: | |
| 刊物名称: | 物理化学学报 |
| 年: | 2014 |
| 卷: | 50 |
| 期: | 5 |
| 页: | 980 |
| 联系作者: | 吴飞鹏 |
| 收录类别: | |
| 影响因子: | 3.753 |
| 摘要: | By using sulfonated graphene as a support for the platinum (Pt) cocatalyst, a new water-soluble composite (GSO3Pt) characteristic of small-sized and "clean" Pt nanoparticles on graphene was prepared by a facile photoreduction method, in which Hantzsch 1,4-dihydropyridine (HEH) was used as a reductant. The photocatalytic system, containing eosin Y (EY) as a sensitizer, GSO3Pt as a catalyst, and TEOA as a sacrificial electron donor, exhibited an 18 times increase in hydrogen (H2) production compared to when colloidal Pt rather than GSO3Pt was used to conduct the same photocatalytic reaction. The higher turnover number (TON), up to 6410 +/- 770 based on platinum, is attributed to the efficient forward electron-transfer mediated by graphene, which was clearly verified for the first time by using the unique spectroscopic property of EY. |
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