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[求助]
乙二醇還原Pt 已有4人參與
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| 各位朋友好,最近在做負載Pt的材料,用乙二醇液相還原的話,具體條件是什么? 謝謝各位 |
Catalysis & Biomass |
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山濤
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這種文獻很多,而且也很常見! 通常均需要加保護劑(如PVP等),不加堿情況下在198度回流3-5小時即可;加堿情況下在140度攪拌1小時即可。 獲得Pt NPs粒徑均在2-3nm左右! J. Am. Chem. Soc., 2008, 130 (51), 17479-17486; Angew. Chem. Int. Ed. 2005, 44, 4539 –4543 Chem. Commun., 2011, 47, 3951–3953; |

鐵桿木蟲 (著名寫手)
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可以參考王遠的文章! 這方面 論壇里很多。 Wang, Y., et al. (2000). "Preparation of Tractable Platinum, Rhodium, and Ruthenium Nanoclusters with Small Particle Size in Organic Media." Chemistry of Materials 12(6): 1622-1627. Preparation of “Unprotected” Platinum Nanoclusters. All operations were carried out under inert atmosphere (Ar or N2). In a typical preparation, a glycol solution of NaOH (50 mL, 0.5 M) was added into a glycol solution of H2PtCl6a6H2O (1.0 g, 1.93 mmol in 50 mL) with stirring to obtain a transparent yellow platinum hydroxide or oxide colloidal solution which was then heated at 160 °C for 3 h, with an Ar flow passing through the reaction system to take away water and organic byproducts. A transparent dark-brown homogeneous colloidal solution of the Pt metal nanocluster (Pt: 3.76 g/L glycol, 19.3 mmol/L) was obtained without any precipitate. The obtained Pt nanocluster solution is very stable, no precipitate was observed after standing for several months. |

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