Controllable synthesis of a robust sucrose-derived bio-carbon foam with 3D hierarchical porous structure for thermal insulation, flame retardancy and oil absorption

Wu, Shanshan; Chen, Daming; Zhao, Guangdong; Cheng, Yuan; Sun, Boqian; Yan, Xiaojie; Han, Wenbo; Chen, Guiqing; Zhang, Xinghong

doi:10.1016/j.cej.2022.134514

Cited by 50 publications

(23 citation statements)

References 59 publications

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“…They presented a linear viscoelastic behavior at low strain rates, afterward a relatively large plateau region, and finally, a densification zone. This trend was consistent with the compression behavior of open-cell porous materials and suggested a flexible deformation pattern of the developed insulations [16,39]. Both compressive modulus and compressive strength increased significantly with increasing GT content.…”

Section: Mechanical Resiliencesupporting

confidence: 85%

Water-resistant gum-based phase change composite for thermo-regulating insulation packaging

Baniasadi

Seppälä

Kankkunen

et al. 2023

Journal of Energy Storage

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Section: Mechanical Resiliencesupporting

confidence: 85%

Water-resistant gum-based phase change composite for thermo-regulating insulation packaging

Baniasadi

Seppälä

Kankkunen

et al. 2023

Journal of Energy Storage

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“…The universal testing machine (GNT100, NCS Testing Technology Co., Ltd., Beijing, China) was used to test the mechanical properties of graphene-modified carbon foam composites. First, the composite materials were cut into small samples with the dimension 10 mm × 10 mm × 10 mm; these samples were compressed between two stainless platens with a loading rate of 0.5 mm/min, which is widely adopted in the compression strength testing of carbon foam [ 32 , 33 ], and then the stress–strain curve of the samples was obtained, as well as the failure load P and the compression section area A. Finally, compression strength σ of these samples was calculated according to the following formula: σ = P/A …”

Section: Methodsmentioning

confidence: 99%

Preparation and Adsorption Properties of Graphene-Modified, Pitch-Based Carbon Foam Composites

Li¹,

Li²,

Deng³

et al. 2022

Polymers

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In view of the good adsorption properties of graphene and carbon foam, they were combined to achieve the optimal matching of microstructures. Taking mesophase pitch as a raw material, pitch-based carbon foam was prepared by the self-foaming method. Graphene gel was prepared as the second phase to composite with the carbon foam matrix; graphene-modified, pitch-based carbon foam composites were finally obtained. Graphene gel was dispersed in the rich pore structure of carbon foam to improve its agglomeration and the porosity, and the active sites of the composite were further increased; the adsorption properties and mechanical properties of the composites were also significantly improved. The microstructure and morphology of the composites were studied by SEM, XRD and Raman spectroscopy; the compressive property and porosity were also tested. Methylene blue (MB) solution was used to simulate a dye solution for the adsorption test, and the influence of the composite properties and MB solution on the adsorption property was studied. Results showed that the compressive strength of the composite was 13.5 MPa, increased by 53.41%, and the porosity was 58.14%, increased by 24.15%, when compared to raw carbon foam. When the mass of the adsorbent was 150 mg, the initial concentration of the MB solution was 5 mg/L, and the pH value of the MB solution was 11; the graphene-modified carbon foam composites showed the best adsorption effect, with an adsorption rate of 96.3% and an adsorption capacity of 144.45 mg/g. Compared with the raw carbon foam, the adsorption rate and adsorption capacity of the composites were increased by 158.18% and 93.50%, respectively.

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“…Customised biochar possesses 3D porous and 2D flakelike structures, which contribute to the formation of additional pathways for heat transfer (Xiong et al 2022). When porous biochar is uniformly distributed throughout the construction materials, it can induce scattered heat propagation, render the heat propagation routes multi-directional, and hinder the effect of unidirectional heat propagation (Jiang et al 2022;Wu et al 2022;Xiong et al 2022). This phenomenon effectively slows the expected propagation of heat flow and inhibits the heat transfer through solids, enhancing the thermal insulation potential of biochar-cement composites (Fig.…”

Section: Thermal Insulation and Noise Reductionmentioning

confidence: 99%

Biochar as construction materials for achieving carbon neutrality

Zhang

Wang

et al. 2022

Biochar

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Biochar is a waste-derived material that can sequester carbon at a large scale. The development of low-carbon and sustainable biochar-enhanced construction materials has attracted extensive interest. Biochar, having a porous nature and highly functionalised surface, can provide nucleation sites for chemical reactions and exhibit compatibility with cement, asphalt, and polymer materials. This study critically reviewed the state-of-the-art biochar-enhanced construction materials, including biochar-cement composites, biochar-asphalt composites, biochar-plastic composites, etc. The efficacies and mechanisms of biochar as construction materials were articulated to improve their functional properties. This critical review highlighted the roles of biochar in cement hydration, surface functional groups of engineered biochar for promoting chemical reactions, and value-added merits of biochar-enhanced construction materials (such as humidity regulation, thermal insulation, noise reduction, air/water purification, electromagnetic shielding, and self-sensing). The major properties of biochar are correlated to the features and functionalities of biochar-enhanced construction materials. Further advances in our understanding of biochar’s roles in various composites can foster the next-generation design of carbon–neutral construction materials. Graphical Abstract

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Controllable synthesis of a robust sucrose-derived bio-carbon foam with 3D hierarchical porous structure for thermal insulation, flame retardancy and oil absorption

Cited by 50 publications

References 59 publications

Water-resistant gum-based phase change composite for thermo-regulating insulation packaging

Water-resistant gum-based phase change composite for thermo-regulating insulation packaging

Preparation and Adsorption Properties of Graphene-Modified, Pitch-Based Carbon Foam Composites

Biochar as construction materials for achieving carbon neutrality

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