Pd–Au heterostructured nanonecklaces with adjustable interval and size as a superior catalyst for degradation of 4-nitrophenol,CrystEngComm

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Pd–Au heterostructured nanonecklaces with adjustable interval and size as a superior catalyst for degradation of 4-nitrophenol
CrystEngComm ( IF 2.6 ) Pub Date : 2017-08-28 00:00:00 , DOI: 10.1039/c7ce01174a
Zhao Huang _{1,

2,

3,

4,

5} , Kai Cai _{1,

2,

3,

4,

5} , Huan Zhang _{1,

2,

3,

4,

5} , Zilan Hong _{1,

2,

3,

4,

5} , Zhaodong Yuan _{1,

2,

3,

4,

5} , Heyou Han _{1,

2,

3,

4,

5}

Affiliation

A facile method for the synthesis of Au-pearl/Pd-wire heterostructured nanonecklaces (APHNs) was developed for the first time, in which regular Au pearls with controllable size and interval distance were interlinked into a string by an ultrathin and ultralong Pd nanowire. The distribution density of Au nanopearls was regulated by the concentration of the reducing agent, while their size was controlled by the amount of the Au precursor. In the study of degradation of 4-nitrophenol (4-NP), the catalytic properties of several typical APHNs are proved to be inherently related to their morphology. By comparison with other nanostructures and commercial Pd/C, the APHNs show superior catalytic activities and better stability in general. The study demonstrated that novel heterostructures have superior catalytic properties in the degradation of 4-NP. Moreover, the nanostructures have the potential to be used as a high-efficiency catalyst in other catalytic reactions.

中文翻译：

Pd–Au异质结构纳米项链，具有可调节的间隔和大小，可作为降解4-硝基苯酚的优良催化剂

首次开发了一种简便的合成金-珍珠/钯丝异质结构纳米项链（APHNs）的方法，该方法通过超薄超长的钯纳米线将规则尺寸和间隔距离可控的规则金珍珠相互串接在一起。金纳米珍珠的分布密度由还原剂的浓度控制，而其尺寸则由金前体的量控制。在研究4-硝基苯酚（4-NP）的降解过程中，几种典型APHN的催化性能被证明与它们的形态有内在的联系。与其他纳米结构和市售Pd / C相比，APHNs总体上显示出优异的催化活性和更好的稳定性。研究表明，新型异质结构在降解4-NP方面具有优异的催化性能。

更新日期：2017-09-14

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