Beta-cyclodextrin was used as structure directing agent for the formation of a novel small, uniform platinum nanoparticles. The resultant platinum nanoparticles were supported over multi-walled carbon nanotubes (PtMWCNTs) and used as catalyst for hydrogen generation. The resultant composite was characterized via X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The TEM displayed the diameter of MWCNT ranged from 20 to 35 nm, and the average size of Pt nanoparticles was 2.8 nm. Testing of catalytic activity showed that the highest rate achieved was 21.2 ml min −1 g cat −1 at 303 K with pH 7 and 835 μ moles of NaBH 4 . In the pH adjusted trials, the greatest rate achieved was 16.9 ml min −1 g cat −1 outperforming both pH 7 and pH 6 despite the known increase in hydrolys...

中文翻译：

---

超细铂纳米颗粒和碳纳米管衍生的纳米复合催化剂，用于制氢

β-环糊精被用作结构导向剂，用于形成新型的小的均匀铂纳米颗粒。将所得的铂纳米颗粒负载在多壁碳纳米管（PtMWCNT）上，并用作产生氢气的催化剂。通过X射线衍射（XRD），傅立叶变换红外光谱（FTIR），透射电子显微镜（TEM），扫描电子显微镜（SEM）和能量分散光谱（EDS）对所得复合材料进行表征。TEM显示MWCNT的直径为20至35nm，Pt纳米颗粒的平均尺寸为2.8nm。催化活性测试表明，在303 K，pH 7和835μmol NaBH 4的条件下，最高催化速率为21.2 ml min -1 g cat -1。在pH值调整的试验中，达到的最大速率为16。