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[交流]
在碳?xì)饽z上制備超低負(fù)荷鉑納米催化劑
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Ultralow Loading Pt Nanocatalysts Prepared by Atomic Layer Deposition on Carbon Aerogels,Nano Letters8(2008). 影響因子:12.186 摘要:Using atomic layer deposition (ALD), we show that Pt nanoparticles can be deposited on the inner surfaces of carbon aerogels (CA). The resultant Pt-loaded materials exhibit high catalytic activity for the oxidation of CO even at loading levels as low as ∼0.05 mg Pt/cm2.We observe a conversion efficiency of nearly 100% in the 150 250 °C temperatures range, and the total conversion rate seems to be limited only by the thermal stability of the CA support in ambient oxygen. The ALD approach described here is universal in nature, and can be applied to the design of new catalytic materials for a variety of applications, including fuel cells, hydrogen storage, pollution control, green chemistry, and liquid fuel production. 中文翻譯摘要:應(yīng)用原子層沉積技術(shù),我們可以將大量的納米粒子堆積到碳?xì)饽z表面。合成的載鉑材料對CO的氧化具有很高催化活性,即使在鉑含量僅為0.05mg/cm2。在150-250度范圍內(nèi)有幾乎100%的轉(zhuǎn)化效率?偟霓D(zhuǎn)化效率僅僅取決于氧周圍的碳?xì)饽z的熱穩(wěn)定性。這里所描述的原子層沉積技術(shù)在自然界很普遍,可以應(yīng)用到新型催化劑領(lǐng)域,包括燃料電池、儲氫、污染控制、綠色化學(xué)和液體燃料等。 想獲得更多資源可點(diǎn)擊鏈接http://www.tjdrfk.com/news/vfrtgb.html 圖片3.jpg 圖片1.jpg 圖片2.jpg [ Last edited by liwentao2010 on 2014-12-30 at 22:07 ] |

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