A novel composite phase change material from lauric acid, nano-Cu and attapulgite: Preparation, characterization and thermal conductivity enhancement

Wen, Ruilong; Zhu, Xiao; Yang, Changchun; Sun, Zhenhua; Zhang, Liangpei; Xu, Yingming; Qiao, Jiaxin; Wu, Xiaowen; Min, Xin; Huang, Zhaohui

doi:10.1016/j.est.2021.103921

Cited by 46 publications

(8 citation statements)

References 37 publications

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“…Additionally, peak at 721 cm -1 is associated with in-plane swinging vibration of -CH2 functional group [3]. Results confirmed the physical mixing of LA and GR without any chemical structural disturbance, and given peaks are in resemblance to previous literature work reported [2].…”

Section: Resultssupporting

confidence: 85%

“…Therefore, it is anticipated that significant increment in the thermal conductivity of PCMs will occur by incorporating NPs with high thermal conductivity values. Organic PCMs based on fatty acids has developed as a promising field of study in current years, with their many benefits including non-corrosiveness, high latent heat store capacity (˃ 150 J/g) [2], minimal volume change during phase transition, self-nucleation, better thermal reliability, and lower price. Therefore, LA is being examined for the present investigation of organic PCM because of its potential in energy storage.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the optical absorption and thermal conductivity of nano-enhanced lauric acid phase change material for energy storage application

Bhutto,

Pandey,

Saidur

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The issue of energy storage can be significantly reduced owing to phase change materials’ (PCMs) tremendous capacity for storing latent heat in a reliable and sustainable method. The limited thermal conductivity, however, prevents PCM from being widely used in a variety of uses. Highly conductive nanoparticles (NPs) are frequently integrated into PCMs to address this shortcoming. Due to their high thermal conductivity, such as Graphene (GR), carbon-based NPs are considered potential NPs to be implemented in PCMs. Herein, we report the Lauric acid (LA) PCM, and nano-enhanced LA with 0.3% and 0.7% additions of GR NPs. The composites were prepared by using two-step method. The samples were examined thermo-physically; thermal conductivity was obtained using a thermal property analyzer (TEMPOs), chemical composition was identified using Fourier transform infrared spectroscopy (FTIR), photo-transmittance by Ultra-Violet Visible spectra (UV-Vis) and thermal stability was assessed by employing thermal gravimetric analyzer (TGA). As per results, thermal conductivity of LA was enhanced by 13.5% and 18.4% by inclusion of 0.3 and 0.7 weight percentages of GR NPs. The 0.7 weight percentage addition of GR NPs to base PCM exhibited 60% transmittance reduction in comparison to base LA. Further all prepared samples were thermally stable with no weight degradation until 140°C. The FTIR confirmed the samples were chemically stable as no any new peak observed in composites. Therefore, based on results, GR enhanced LA PCM can be considered as future potential composite to be implemented in energy storage applications.

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Section: Resultssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Investigating the optical absorption and thermal conductivity of nano-enhanced lauric acid phase change material for energy storage application

Bhutto,

Pandey,

Saidur

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Natural ATP as a traditional building material has been widely used in adsorbents, reinforcement, and dispersion matrix. − To combine ATP with its characteristics in building and decoration, we then designed a desktop by coating Fe-Cu/ATP with POD-like activity onto the surface of polyethylene (PE) via a simple hot-pressing method, which is denoted as Fe-Cu/ATP-PE. The composite desktop turned to brownish-red color due to the addition of Fe-Cu/ATP (Figure a).…”

Section: Resultsmentioning

confidence: 99%

Attapulgite Doped with Fe and Cu Nanooxides as Peroxidase Nanozymes for Antibacterial Coatings

Feng

Zhang

et al. 2022

ACS Appl. Nano Mater.

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The search for low-cost, highly efficient, and stable nanozymes mimicking peroxidase (POD) enzymes remains a great challenge in the development of valuable antibacterial applications. Herein, a natural attapulgite (ATP)-supported Fe and Cu oxide with mixed valences (Fe-Cu/ATP) is reported as an efficient nanozyme by a feasible impregnation method. The obtained Fe-Cu/ATP nanozyme with a large specific area and high dispersity can effectively catalyze the hydrogen peroxide (H 2 O 2 ) decomposition, exhibiting enhanced POD-like activity compared with Fe/ATP, Cu/ATP, and pristine ATP. In addition, the Fe-Cu/ATP showed high stability and reusability. Through further combination with the density functional theory calculation, the electron density of the ATP surface is increased by simultaneously introducing Fe and Cu dopants. Thus, Fe-Cu/ATP possesses excellent antibacterial properties including a short-time effect depending on the POD-like activity with H 2 O 2 and a long-term effect generated by the metal without H 2 O 2 . Finally, a coating desktop and an antibacterial fabric were delicately designed and fabricated by loading Fe-Cu/ATP onto polyethylene and a fabric surface, showing the enormous potential of Fe-Cu/ATP as building and medical functional coatings. This study provides a rational way to design natural mineral nanozymes for promising antibacterial applications.

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“…After functional assembly of Hal with graphene and AgNPs, the thermal conductivity of FSPCM was obviously increased compared with the unmodified samples (Figure 11B,E). Wen et al [104] dispersed the nano-Cu into the melted Lauric acid (LA) by ultrasonic dispersion method to obtain thermal conductivity enhanced LA@Cu with effective dispersion of nano-Cu. Then, a new FSPCM was prepared by vacuum impregnation using ATP as the support material in combination with LA@Cu.…”

Section: Functional Assembly Of 1d Nanoclay Mineralsmentioning

confidence: 99%

Advances in Nanoclay‐Based Form Stable Phase Change Materials: A Review

Zhao

Zuo

Yang

2023

Adv Materials Technologies

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As the core material of thermal energy storage technology, phase change materials (PCM) suffer serious leakage problems and slow thermal conductivity in applications. Nanoclay with relatively high specific surface area, high thermal conductivity, and abundant pore structure can successfully compensate for the defects in PCM. However, the ability of nanoclay without further modification to encapsulate the PCM for the preparation of form stable phase change materials (FSPCM) and accelerate their heat transfer is limited. Nanoclay is classified into 1D, 2D, and 3D minerals based on their microscopic morphology. In this review, the specific surface and pore structure of three types of nanoclay and their thermal performance after loading with PCM are summarized and compared. Then, different mineral modification treatments, such as pretreatment, surface modification, structural modulation, and functional assembly, are summarized to investigate the enhancement of thermal performance in nanoclay‐based FSPCM. This review also summarizes the state‐of‐the‐art research progress of emerging nanoclay material‐based FSPCM. Finally, a summary of the traditional applications of mineral‐based FSPCM and an outlook on new applications are presented. This paper will help researchers to better understand the recent developments, performance enhancement strategies of nanoclay‐based FSPCM and to identify potential future research efforts.

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A novel composite phase change material from lauric acid, nano-Cu and attapulgite: Preparation, characterization and thermal conductivity enhancement

Cited by 46 publications

References 37 publications

Investigating the optical absorption and thermal conductivity of nano-enhanced lauric acid phase change material for energy storage application

Investigating the optical absorption and thermal conductivity of nano-enhanced lauric acid phase change material for energy storage application

Attapulgite Doped with Fe and Cu Nanooxides as Peroxidase Nanozymes for Antibacterial Coatings

Advances in Nanoclay‐Based Form Stable Phase Change Materials: A Review

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