Limits...
Rapid charging of thermal energy storage materials through plasmonic heating.

Wang Z, Tao P, Liu Y, Xu H, Ye Q, Hu H, Song C, Chen Z, Shang W, Deng T - Sci Rep (2014)

Bottom Line: This work reports a facile approach for rapid and efficient charging of thermal energy storage materials by the instant and intense photothermal effect of uniformly distributed plasmonic nanoparticles.Upon illumination with both green laser light and sunlight, the prepared plasmonic nanocomposites with volumetric ppm level of filler concentration demonstrated a faster heating rate, a higher heating temperature and a larger heating area than the conventional thermal diffusion based approach.With controlled dispersion, we further demonstrated that the light-to-heat conversion and thermal storage properties of the plasmonic nanocomposites can be fine-tuned by engineering the composition of the nanocomposites.

View Article: PubMed Central - PubMed

Affiliation: 1] State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China [2].

ABSTRACT
Direct collection, conversion and storage of solar radiation as thermal energy are crucial to the efficient utilization of renewable solar energy and the reduction of global carbon footprint. This work reports a facile approach for rapid and efficient charging of thermal energy storage materials by the instant and intense photothermal effect of uniformly distributed plasmonic nanoparticles. Upon illumination with both green laser light and sunlight, the prepared plasmonic nanocomposites with volumetric ppm level of filler concentration demonstrated a faster heating rate, a higher heating temperature and a larger heating area than the conventional thermal diffusion based approach. With controlled dispersion, we further demonstrated that the light-to-heat conversion and thermal storage properties of the plasmonic nanocomposites can be fine-tuned by engineering the composition of the nanocomposites.

No MeSH data available.


Schematic illustration of two different charging approaches of thermal storage materials.(a) Conventional thermal diffusion based slow charging, (b) Instant optical charging via plasmonic heating of uniformly dispersed Au NPs.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4150109&req=5

f1: Schematic illustration of two different charging approaches of thermal storage materials.(a) Conventional thermal diffusion based slow charging, (b) Instant optical charging via plasmonic heating of uniformly dispersed Au NPs.

Mentions: Fig. 1a presents that conventional thermal charging of organic thermal storage materials relies on the slow thermal heating, mainly through thermal diffusion, from the hot zone, here shown as a black aluminum (Al) foil that absorbs incident light and converts it into heat, to the rest part of thermal storage media. Fig. 1b shows that our new approach utilizes homogeneously dispersed Au NPs, which act as numerous local optical heaters, to continuously heat up the whole organic thermal storage matrix materials. Therefore, the whole bulk thermal storage materials could be immediately and uniformly heated. Instead of using the traditional opaque paraffin wax phase-change material that would strongly scatter the incident visible light, in this work we utilize a transparent gel wax as the model organic sensible thermal storage material (see Fig. S1 in Supplementary Information) to facilitate the excitation of the plasmonic heating of the incorporated Au particles. This facile approach could be easily applied to other thermal storage material systems.


Rapid charging of thermal energy storage materials through plasmonic heating.

Wang Z, Tao P, Liu Y, Xu H, Ye Q, Hu H, Song C, Chen Z, Shang W, Deng T - Sci Rep (2014)

Schematic illustration of two different charging approaches of thermal storage materials.(a) Conventional thermal diffusion based slow charging, (b) Instant optical charging via plasmonic heating of uniformly dispersed Au NPs.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4150109&req=5

f1: Schematic illustration of two different charging approaches of thermal storage materials.(a) Conventional thermal diffusion based slow charging, (b) Instant optical charging via plasmonic heating of uniformly dispersed Au NPs.
Mentions: Fig. 1a presents that conventional thermal charging of organic thermal storage materials relies on the slow thermal heating, mainly through thermal diffusion, from the hot zone, here shown as a black aluminum (Al) foil that absorbs incident light and converts it into heat, to the rest part of thermal storage media. Fig. 1b shows that our new approach utilizes homogeneously dispersed Au NPs, which act as numerous local optical heaters, to continuously heat up the whole organic thermal storage matrix materials. Therefore, the whole bulk thermal storage materials could be immediately and uniformly heated. Instead of using the traditional opaque paraffin wax phase-change material that would strongly scatter the incident visible light, in this work we utilize a transparent gel wax as the model organic sensible thermal storage material (see Fig. S1 in Supplementary Information) to facilitate the excitation of the plasmonic heating of the incorporated Au particles. This facile approach could be easily applied to other thermal storage material systems.

Bottom Line: This work reports a facile approach for rapid and efficient charging of thermal energy storage materials by the instant and intense photothermal effect of uniformly distributed plasmonic nanoparticles.Upon illumination with both green laser light and sunlight, the prepared plasmonic nanocomposites with volumetric ppm level of filler concentration demonstrated a faster heating rate, a higher heating temperature and a larger heating area than the conventional thermal diffusion based approach.With controlled dispersion, we further demonstrated that the light-to-heat conversion and thermal storage properties of the plasmonic nanocomposites can be fine-tuned by engineering the composition of the nanocomposites.

View Article: PubMed Central - PubMed

Affiliation: 1] State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China [2].

ABSTRACT
Direct collection, conversion and storage of solar radiation as thermal energy are crucial to the efficient utilization of renewable solar energy and the reduction of global carbon footprint. This work reports a facile approach for rapid and efficient charging of thermal energy storage materials by the instant and intense photothermal effect of uniformly distributed plasmonic nanoparticles. Upon illumination with both green laser light and sunlight, the prepared plasmonic nanocomposites with volumetric ppm level of filler concentration demonstrated a faster heating rate, a higher heating temperature and a larger heating area than the conventional thermal diffusion based approach. With controlled dispersion, we further demonstrated that the light-to-heat conversion and thermal storage properties of the plasmonic nanocomposites can be fine-tuned by engineering the composition of the nanocomposites.

No MeSH data available.