Sugarcane derived carbon@CuS-octadecanol composite phase change materials for efficient solar thermal storage

IF 4.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Progress in Natural Science: Materials International Pub Date : 2024-08-01 DOI:10.1016/j.pnsc.2024.06.007

Shu-Yao Li , Ying-Jie Huo , Ting Yan , Wei-Guo Pan

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Abstract

Biomass carbon has the advantage of a wide spectral absorption range, which makes it great potential for solar thermal utilization. In this study, porous skeleton support materials of sugarcane-derived carbon were prepared by freeze-drying-high-temperature carbonization method using natural sugarcane as raw material, and the characterization results demonstrate that the porous skeleton of sugarcane-derived carbon has outstanding porous support properties. By combining CuS with sugarcane-derived carbon, a porous material with outstanding photo-thermal conversion performance was synthesized. Four photo-thermal composite phase change materials (CPCMs) were prepared, the maximum loading mass of the support material C600 to the phase change materials (PCMs) reached 79.77 %. The C600-CuS-OC had excellent thermal storage properties with an enthalpy of melting of 276.3 J/g and a thermal conductivity of 0.61 W·m⁻¹·K⁻¹. The photo-thermal conversion efficiency of C600-CuS-OC was 83.2 %. Sugarcane carbon-based CPCMs are a low-cost and high-efficiency solar thermal storage material, which has great potential for applications in solar thermal storage, biomass utilization, and thermal management.

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用于高效太阳能热存储的甘蔗衍生碳@铜-十八醇复合相变材料

生物质碳具有光谱吸收范围广的优点，因此在太阳能热利用方面具有很大的潜力。本研究以天然甘蔗为原料，采用冷冻干燥-高温碳化法制备了甘蔗衍生碳多孔骨架支撑材料，表征结果表明甘蔗衍生碳多孔骨架具有优异的多孔支撑性能。通过将 CuS 与甘蔗衍生碳相结合，合成了一种具有优异光热转换性能的多孔材料。制备了四种光热复合相变材料（CPCMs），支撑材料 C600 对相变材料（PCMs）的最大负载量达到 79.77%。C600-CuS-OC 具有优异的蓄热性能，其熔化焓为 276.3 J/g，导热系数为 0.61 W-m-1-K-1。C600-CuS-OC 的光热转换效率为 83.2%。甘蔗碳基 CPCMs 是一种低成本、高效率的太阳能储热材料，在太阳能储热、生物质利用和热管理方面具有巨大的应用潜力。

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来源期刊

Progress in Natural Science: Materials International 综合性期刊-综合性期刊

CiteScore

8.60

自引率

2.10%

发文量

2812

审稿时长

49 days

期刊介绍： Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.