Exfoliated graphdiyne for the electroless deposition of Au nanoparticles with high catalytic activity,Analyst

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Exfoliated graphdiyne for the electroless deposition of Au nanoparticles with high catalytic activity
Analyst ( IF 3.6 ) Pub Date : 2020-10-30 , DOI: 10.1039/d0an01814g
Yan Gao _{1,

2,

3,

4,

5} , Changwei Li _{1,

2,

3,

4,

5} , Wei Yi _{6,

7,

8,

9,

10} , Junjie Fei _{1,

2,

3,

4,

5} , Lanhua Yi _{1,

2,

3,

4,

5} , Ping Yu _{6,

7,

8,

9,

10} , Lanqun Mao _{6,

7,

8,

9,

10}

Affiliation

Graphdiyne (GDY), a novel two-dimensional (2D) carbon material with sp- and sp²-hybridized carbon atoms, has earned a lot of attention in recent years. Owing to its low reduction potential and highly conjugated electronic structure, it can be used as a reducing agent and stabilizer for the electroless deposition of highly dispersed Au nanoparticles. In this paper, we observe that exfoliated GDY (eGDY), the exfoliation of bulk GDY into single- or few-layered GDY in aqueous solution, can be used as an excellent substrate for the electroless deposition of very small Au nanoparticles to form a Au/eGDY nanocomposite that exhibits higher catalytic performance for the reduction of 4-nitrophenol. The higher catalytic performance is considered to arise from the high specific surface area of eGDY and the electroless deposition of active metal catalysts with eGDY as the support. Our results inspired the present investigation into the use of eGDY for the development of highly efficient catalysts.

中文翻译：

脱落石墨二炔用于高催化活性金纳米颗粒的化学沉积

Graphdiyne（GDY），一种具有sp-和sp ²的新型二维（2D）碳材料-杂化碳原子，近年来引起了很多关注。由于其低还原电势和高度共轭的电子结构，它可以用作还原剂和稳定剂，用于高度分散的Au纳米粒子的化学沉积。在本文中，我们观察到剥落的GDY（eGDY），即本体GDY在水溶液中剥落成单层或几层GDY的剥落，可以用作极小的Au纳米颗粒化学沉积形成Au的优良基材。 / eGDY纳米复合材料，具有较高的催化还原4-硝基苯酚的性能。认为较高的催化性能来自eGDY的高比表面积和以eGDY为载体的活性金属催化剂的化学沉积。

更新日期：2020-11-12

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