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

Chemical Science
Mahak DhimanVivek Polshettiwar

Abstract

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 near-infrared 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.

References

Aug 4, 2010·Angewandte Chemie·Vivek PolshettiwarJean Marie Basset
May 24, 2011·Nature Chemistry·Phillip ChristopherSuljo Linic
Dec 21, 2016·Accounts of Chemical Research·Jwa-Min NamYung Doug Suh
Dec 1, 2017·Chemical Reviews·Yuchao ZhangWei David Wei
Dec 8, 2017·Chemical Reviews·Yueying WuJon P Camden
Oct 24, 2018·Nano Letters·Jhon QuirozPedro H C Camargo

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Citations

Nov 26, 2019·Angewandte Chemie·Sungju Yu, Prashant K Jain
Feb 20, 2021·ACS Applied Materials & Interfaces·Ritika WadhwaMenaka Jha
Apr 24, 2021·Advanced Materials·Dong Liu, Can Xue
May 20, 2021·Langmuir : the ACS Journal of Surfaces and Colloids·Jitendra BahadurVivek Polshettiwar
Aug 22, 2020·The Journal of Physical Chemistry Letters·Chengyu ZhangGang Lu
Oct 17, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Ayan MaityVivek Polshettiwar
Sep 18, 2021·Chemical Society Reviews·Jian ZhaoJinghong Li

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Methods Mentioned

BETA
surface plasmon resonance
surface-enhanced Raman spectroscopy
transmission electron microscopy
X-ray
protein folding
fluorescence spectroscopy

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