Plasmonic colloidosomes of black gold for solar energy harvesting and hotspots directed catalysis for CO2 to fuel conversion

被引：102

作者：

Dhiman, Mahak ^{[1
]}

Maity, Ayan ^{[1
]}

Das, Anirban ^{[1
]}

Belgamwar, Rajesh ^{[1
]}

Chalke, Bhagyashree ^{[2
]}

Lee, Yeonhee ^{[3
]}

Sim, Kyunjong ^{[3
]}

Nam, Jwa-Min ^{[3
]}

Polshettiwar, Vivek ^{[1
]}

机构：

[1] TIFR, Dept Chem Sci, Mumbai, Maharashtra, India

[2] TIFR, Dept Condensed Matter Phys & Mat Sci, Mumbai, Maharashtra, India

[3] Seoul Natl Univ, Dept Chem, Seoul, South Korea

来源：

CHEMICAL SCIENCE | 2019年 / 10卷 / 27期

基金：

新加坡国家研究基金会;

关键词：

SURFACE-AREA; NANOSPHERES;

D O I：

10.1039/c9sc02369k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we showed the tuning of the catalytic behavior of dendritic plasmonic colloidosomes ( DPCs) by plasmonic hotspots. A cycle- by- cycle solution- phase synthetic protocol yielded high- surface- area DPCs by controlled nucleation- growth of gold nanoparticles. These DPCs, which had varying interparticle distances and particle- size distribution, absorb light over the entire visible region as well as in the nearinfrared region of the solar spectrum, transforming gold into black gold. They produced intense hotspots of localized electric fields as well as heat, which were quantified and visualized by Raman thermometry and electron energy loss spectroscopy plasmon mapping. These DPCs can be effectively utilized for the oxidation reaction of cinnamyl alcohol using pure oxygen as the oxidant, hydrosilylation of aldehydes, temperature jump assisted protein unfolding and purification of seawater to drinkable water via steam generation. Black gold DPCs also convert CO2 to methane ( fuel) at atmospheric pressure and temperature, using solar energy.

引用

页码：6594 / 6603

页数：10

共 25 条

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