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PEO-b-P4VP/Yttrium Hydroxide Hybrid Nanotubes as Supporter for Catalyst Gold Nanoparticles

PEO-b-P4VP/Yttrium Hydroxide Hybrid Nanotubes as Supporter for Catalyst Gold Nanoparticles
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摘要 吸附(乙烯氧化物) poly, -b-poly(4-vinylpyridine)(PEO-b-P4VP) 微粒与稠密的 P4VP 内部层和包围 YNT 的拉长的 PEO 外部层导致了到钇氢氧化物 nanotubes (YNT ) 的表面上混合 nanotubes。稠密的 P4VP 层被 crosslinking 进一步作为 crosslinker 用 1,4-dibromobutane 稳定。然后, crosslinked 混血儿 nanotubes (CHNT ) 作为一个新奇 nano 支持者被使用在 crosslinked P4VP 层以内装载催化剂金牌 nanoparticles (GNP ) 。结果的 GNPs/CHNTs (在 CHNT 上装载的 GNT ) 被使用催化 p-nitrophenol 的减小反应。结果显示这个新奇 nano 支持者在暂停,在装载 GNP (0.87 mmol/g ) 的高能力,装载 GNP (12.9 mol1min1 ) 的高催化的活动,和 GNTs/CHNTs 的好可重用性有象好 dispersity 那样的优点。 The adsorption of poly (ethylene oxide)-b-poly(4-vinylpyridine)(PEO-b-P4VP) micelles onto the surface of yttrium hydroxide nanotubes (YNTs) resulted in the hybrid nanotubes with a dense P4VP inner layer and a stretched PEO outer layer surrounding YNTs. The dense P4VP layer was further stabilized by the crosslinking using 1,4-dibromobutane as the crosslinker. Then, the crosslinked hybrid nanotubes (CHNTs) were used as a novel nano supporter for loading the catalyst gold nanoparticles (GNPs) within the crosslinked P4VP layer. The resultant GNPs/CHNTs (GNTs loaded on CHNTs) were applied to catalyze the reduction reaction of p-nitrophenol. The results indicate that this novel nano supporter has advantages such as good dispersity in the suspension, high capacity in loading GNPs (0.87 mmol/g), high catalytic activity of the loaded GNPs (12.9 μmol-lmin-i), and good reusability of GNTs/CHNTs.
出处 《Chinese Journal of Chemical Physics》 SCIE CAS CSCD 2012年第3期352-358,374,共8页 化学物理学报(英文)
关键词 纳米催化剂 碳纳米管 纳米金 混合 氢氧 国民生产总值 乙烯基吡啶 载体 Gold nanoparticle catalyst, Block copolymer, Hybrid nanotube, Reusable,p-Nitrophenol
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