Photothermal conversion characteristics of gold nanoparticle dispersions
By Hui Zhang, Hui-Jiuan Chen, Xiaoze Du, Dongsheng Wen. 2014
220 citations recorded by the source corpus.
Abstract This work proposes and validates a novel idea of using plasmonic nanoparticles (PNP) to improve the solar thermal conversion efficiency. Gold nanoparticle (GNP) is synthesized from an improved citrate-reduction method, and used as an example to illustrate the photothermal conversion characteristics of PNPs under a solar simulator. The experimental results show that GNP has the best photo-thermal conversion capability comparing to other reported materials. At the lowest particle concentration examined (i.e., 0.15 ppm), GNP increases the photo-thermal conversion efficiency of the base fluid by 20% and reaches a specific absorption rate (SAR) of ∼10 kW/g. The photo-thermal conversion efficiency increases with increasing particle concentrations, but the SAR shows a reverse trend, which is unexpected as all GNPs should be still in the independent scattering regime.
Subfields: Civil and Structural Engineering, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/7cbd6576676c8a94a90667e963cc97ce97c2cc68
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In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- Steam generation in a nanoparticle-based solar receiver (2016, result): “7) decreases with the increase of the nanoparticle concentration, which is consistent with those from previous studies under non-focused solar radiation [34,35].”
- Experimental investigation of a silver nanoparticle-based direct absorption solar thermal system (2014, background): “showed that gold nanoparticles achieved much higher specific absorption rates than other carbon-based nanoparticles [25].”
- Full-spectrum volumetric solar thermal conversion via graphene/silver hybrid plasmonic nanofluids (2018, methodology): “[33] demonstrated that using 116mg/L aqueous gold nanofluid could enhance the photothermal conversion efficiency by 80% and reached a specific absorption rate (SAR) of ∼1 kW/g under a solar simulator.”