Experimental investigation on the plasmonic blended nanofluid for efficient solar absorption

Duan, Huiling; Zheng, Yuan; Xu, Chunxiao; Shang, Yuanfang; Ding, Fan

doi:10.1016/j.applthermaleng.2019.114192

Cited by 36 publications

(10 citation statements)

References 43 publications

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“…Irrespective of the way the materials and nanostructures are engineered, the ultimate objective is to achieve mutual coupling and overlapping of more resonant modes, and thus to both enhance and broaden the absorption performance. For instance, it has almost become a universal strategy to use plasmonic NPs with hybrid material designs, [131,132] wide-distributed sizes, [133,134] and/or various shapes [135] to achieve ultrabroadband absorption. These NPs supporting LSPs at selected wavelengths can be either suspended in solutions [136,137] or assembled on supporting substrates, [138,139] enabling ultrabroadband solar absorption and highly efficient photothermal conversion for targeted applications.…”

Section: Combined Designs and Plasmonic Metamaterialsmentioning

confidence: 99%

“…[98,184] The thin-layered Ti 3 C 2 T x NPs exhibited better photothermal performance than their multilayered counterparts due to both the SP coupling between flakes separated by tiny distance and the tip effect of its hexagonal shape. [184] In case of nanofluids, the broadband solar absorption was achieved by blending a mixture of NPs with different SP resonances across the solar spectrum, such as blending of Au NPs with different NP sizes [133] or shapes, [135] and different material composites including Au/TiN, [71] Au/Ag, [185] etc.…”

Section: Single Nanoparticle Designsmentioning

confidence: 99%

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Thermoplasmonics in Solar Energy Conversion: Materials, Nanostructured Designs, and Applications

Yang

Wang

et al. 2022

Advanced Materials

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The indispensable requirement for sustainable development of human society has forced almost all countries to seek highly efficient and cost‐effective ways to harvest and convert solar energy. Though continuous progress has advanced, it remains a daunting challenge to achieve full‐spectrum solar absorption and maximize the conversion efficiency of sunlight. Recently, thermoplasmonics has emerged as a promising solution, which involves several beneficial effects including enhanced light absorption and scattering, generation and relaxation of hot carriers, as well as localized/collective heating, offering tremendous opportunities for optimized energy conversion. Besides, all these functionalities can be tailored via elaborated designs of materials and nanostructures. Here, first the fundamental physics governing thermoplasmonics is presented and then the strategies for both material selection and nanostructured designs toward more efficient energy conversion are summarized. Based on this, recent progress in thermoplasmonic applications including solar evaporation, photothermal chemistry, and thermophotovoltaic is reviewed. Finally, the corresponding challenges and prospects are discussed.

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Section: Combined Designs and Plasmonic Metamaterialsmentioning

confidence: 99%

Section: Single Nanoparticle Designsmentioning

confidence: 99%

Thermoplasmonics in Solar Energy Conversion: Materials, Nanostructured Designs, and Applications

Yang

Wang

et al. 2022

Advanced Materials

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“…Another simple way is to blend sphere NPs with different materials [83][84][85]. Various NPs have been blended experimentally to enhance the solar absorption performance of plasmonic nanofluids.…”

Section: Experimental Designmentioning

confidence: 99%

“…Besides the blended nanofluids with different NP materials discussed above, the other route is to blend the NPs with different shapes. For example, by mixing Au NPs (such as: nanorods [90]) with different shapes in water, a blended plasmonic nanofluid was prepared and absorption spectrum can be broadened due to the various LSPR peaks of different NP shapes [84]. The blended nanofluids based on Ag triangular nanosheets and Au nanorods, were proposed and a high efficiency of 76.9% is achieved experimentally with a very low volume concentration (0.0001%) [91].…”

Section: Experimental Designmentioning

confidence: 99%

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Chen¹,

Chen²,

Wu³

2021

Advances in Microfluidics and Nanofluids

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Plasmonic nanofluids show great interests for light-matter applications due to the tunable optical properties. By tuning the nanoparticle (NP) parameters (material, shape, and size) or base fluid, plasmonic nanofluids can either absorb or transmit the specific solar spectrum and thus making nanofluids ideal candidates for various solar applications, such as: full spectrum absorption in direct solar absorption collectors, selective absorption or transmittance in solar photovoltaic/thermal (PV/T) systems, and local heating in the solar evaporation or nanobubble generation. In this chapter, we first summarized the preparation methods of plasmonic nanofluids, including the NP preparation based on the top-down and bottom-up, and the nanofluid preparation based on one-step and two-step. And then solar absorption performance of plasmonic nanofluids based on the theoretical and experimental design were discussed to broaden the absorption spectrum of plasmonic nanofluids. At last, solar thermal applications and challenges, including the applications of direct solar absorption collectors, solar PT/V systems, solar distillation, were introduced to promote the development of plasmon nanofluids.

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“…Since a large and fine-tuning of the LSP band due to the NP size is not usually obtained within the limit where the scattering is negligible, , a fairly efficient strategy to tune the LSP band in different spectral regions is by manipulation the NP morphology . For instance, anisotropic plasmonic NPs, such as nanoellipsoids, nanorods, and nanoprisms, are very attractive as nanofluids in DASC, because they support the presence of multiple LSP bands, harvesting solar radiation in different spectral regions simultaneously. − Nevertheless, the most efficient match between the nanofluid absorption spectra and the solar radiation emission was reported when the morphology of the plasmonic NPs presents core–shell or multishell structures. − Previous studies have shown that the coupling effects between light and the core–shell interface can be utilized efficiently to tune the radiative properties of plasmonic nanofluids used in photothermal applications . For example, it was numerically predicted that thin DASC can achieve efficiencies of 85% and 90% when their working fluids contain silica–gold core–shell NPs and spherical gold/silica/gold multilayers, with a volume fraction of 10 –5 , respectively .…”

Section: Introductionmentioning

confidence: 99%

Improving the Performance of Direct Solar Collectors and Stills by Controlling the Morphology and Size of Plasmonic Core–Shell Nanoheaters

et al. 2021

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Plasmonic nanofluids, based on metal nanoparticles (NPs), has received tremendous attention for its potential to increase the efficiency of solar energy harvesting and harnessing systems. The ability to manage their optical absorption by tuning localized surface plasmon (LSP) bands is the reason why metal NPs are considered excellent nanoheaters with unique thermo-optic properties. In this work, we demostrate the influence of the tuning of plasmonic nanofluid absorption bands in different spectral regions, by modifying the morphology and size of the core–shell NPs, on the efficiency of plasmonic nanoheaters to heat fluids and generate steam. Five plasmonic nanofluids containing spherical Au@SiO2, rodlike Au@SiO2, with three different aspect ratios, and spherical SiO2@Au nanoshells were fabricated and characterized to study the local heating induced by plasmon-enhanced light absorption. Gains of up to 28.3 times in the nanofluid temperature increase in direct absorption solar collectors (DASCs) and 7.5 times in the amount of steam generated in the solar ethanol distillation were measured from control over LSP resonances of spherical and rodlike core–shell NPs. Energy distribution analysis shows that plasmonic nanofluids present an efficient energy transfer management, dedicating ∼72% of the absorbed energy to heating liquids at low levels of solar irradiance. However, at high solar irradiances, the good spectral matching between the plasmonic nanofluid LSP bands and the solar irradiance spectrum promotes strong local heating around the core–shell NPs, allowing local temperatures above the boiling point to be reached. Under these conditions, plasmonic nanofluids spend a small amount of energy to heat liquids and they transfer ∼83% of the absorbed energy to generate steam. Thus, a 7.7-fold increase in solar ethanol vaporization rate was achieved. The experimental results, understood from the optical properties of core–shell plasmonic NPs by using the Maxwell–Garnett theoretical model, corroborate the importance of fabricating nanoheaters with projected geometries to maximize the efficiency of solar collectors and stills.

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Experimental investigation on the plasmonic blended nanofluid for efficient solar absorption

Cited by 36 publications

References 43 publications

Thermoplasmonics in Solar Energy Conversion: Materials, Nanostructured Designs, and Applications

Thermoplasmonics in Solar Energy Conversion: Materials, Nanostructured Designs, and Applications

Solar Thermal Conversion of Plasmonic Nanofluids: Fundamentals and Applications

Improving the Performance of Direct Solar Collectors and Stills by Controlling the Morphology and Size of Plasmonic Core–Shell Nanoheaters

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