Fabrication of novel slurry containing graphene oxide-modified microencapsulated phase change material for direct absorption solar collector

Ma, Xiaochun; Liu, Yanjun; Liu, Han; Zhang, Lin; Xu, Bin; Xiao, Fan

doi:10.1016/j.solmat.2018.08.021

Cited by 111 publications

(26 citation statements)

References 34 publications

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“…Liu et al introduced a microcapsules composite material of dodecyl alcohol as core material and MF resin modified with GO and CNTs as shell material, which not only greatly improved the thermal conductivity of the materials, but also the photothermal conversion performance of the prepared slurry has been greatly improved [25]. In addition, we have successfully prepared paraffin@TiO 2 /GO, and paraffin@Cu-Cu 2 O/CNTs microcapsules, which have greatly improved in terms of photothermal properties as compared to unmodified materials [26,27]. According to the literature, tin dioxide (SnO 2 ) is an inorganic material with high thermal conductivity and good thermal stability [28,29].…”

Section: Introductionmentioning

confidence: 97%

Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion

Liu

Chen

et al. 2020

Mater. Res. Express

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In this study, In-situ precipitation reaction was used to prepare paraffin@SnO 2 /CNTs composite phase change materials. The paraffin@SnO 2 /CNTs composites material were prepared by using paraffin as a phase change core material, and tin dioxide and carbon nanotubes as composite shell materials. The microstructure, chemical composition and crystal phase structure of the composites were analyzed by Scanning electron microscope (SEM), Fourier infrared spectrum (FT-IR) and X-ray diffraction (XRD). The thermal performance and thermal stability of phase change materials were determined by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The microcapsule has a core-shell structure with a diameter of 2-5 μm. The encapsulation efficiency of the paraffin@SnO 2 /CNTs composite was calculated to be 42.94%. The slurry is formed by dispersing microcapsules in water, which not only greatly improves the specific heat capacity, thermal conductivity, visible light absorption, but also makes the effective receiving efficiency reach 91.79% at 40°C, indicating that it is a promising heat transfer working slurry in the field of Direct Absorption Solar Collectors (DASC) system.

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Section: Introductionmentioning

confidence: 97%

Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion

Liu

Chen

et al. 2020

Mater. Res. Express

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“…As a material, graphene has excellent thermal conductivity (up to 5500 W (m −1 k −1 )) and high specific surface area (up to 2630 m 2 g −1 ) (Wang et al, 2017). Due to this special structure, outstanding thermal conductivity and mechanical properties, graphene has aroused great interest from the scientific community in recent years (Geim and Novoselov, 2007;Geim, 2009;Ma et al, 2018;Martín-García et al, 2018), and is expected to trigger a revolution in the field of modern optoelectronic technology.…”

Section: Introductionmentioning

confidence: 99%

Direct Graphene Synthesis on Lithium Niobate Substrate by Carbon Ion Implantation

Liu

et al. 2020

Front. Mater.

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“…Due to its high thermal conductivity and heat storage density, these materials find increasing application in preparation of solar functional ceramics. However, they have some obvious disadvantages such as high cost, high sintering temperature, low flexibility, low flexural strength and compressive strength [9][10][11]. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of endothermic functional ceramics with iron tailings as raw materials

Meng

Peng

Srinivasakannan

et al. 2020

Mater. Res. Express

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The present work attempts to utilize iron tailings as the main raw materials for preparation of functional ceramics as a means of resource utilization. A new type of endothermic functional ceramics, which can be used in the field of solar energy, was prepared via semi-dry pressing followed by pressureless sintering. The results show that the functional ceramics made of 68 wt% iron tailings, 26 wt% iron ore, 3 wt% alumina, 1 wt% potash feldspar and 2 wt% kaolin, sintered at 1185°C exhibited the best overall performance. Visual observation reveals that there were no cracks on the surface of the samples even after 20 cycles of intense thermal shock. Other attributes could be summarized as follows: Infrared emissivity in mid-infrared region: 0.85; thermal conductivity at 500°C: 2.066 W/ (m·K); flexural strength: 119.03 MPa. XRD analysis indicates that the main crystalline phases in the samples are augite, magnetite and a small amount of hematite. An increase in the proportion of iron oxide contributed to lower melting temperature of the functional ceramics, deepen color, promote densification and increase infrared emissivity. In short, the introduction of iron tailings improves the thermal and physical properties to a certain extent.

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Fabrication of novel slurry containing graphene oxide-modified microencapsulated phase change material for direct absorption solar collector

Cited by 111 publications

References 34 publications

Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion

Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion

Direct Graphene Synthesis on Lithium Niobate Substrate by Carbon Ion Implantation

Preparation and properties of endothermic functional ceramics with iron tailings as raw materials

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Fabrication of novel slurry containing graphene oxide-modified microencapsulated phase change material for direct absorption solar collector

Cited by 111 publications

References 34 publications

Synthesis of novel microencapsulated phase change material with SnO2/CNTs shell for solar energy storage and photo-thermal conversion

Synthesis of novel microencapsulated phase change material with SnO2/CNTs shell for solar energy storage and photo-thermal conversion

Direct Graphene Synthesis on Lithium Niobate Substrate by Carbon Ion Implantation

Preparation and properties of endothermic functional ceramics with iron tailings as raw materials

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Product

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Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion

Synthesis of novel microencapsulated phase change material with SnO₂/CNTs shell for solar energy storage and photo-thermal conversion