Yanzhi Xia’s research while affiliated with Qingdao University and other places

... As shown in Figure 2d, the commercial Celgard 2400 separator underwent rapid decomposition at 350-500 • C with a weight loss of 97.4%. The thermal decomposition of the CA separator was divided into four main stages: the dissipation of crystalline water from the fibers (50-190 • C), decarboxylation and glycosidic bond cleavage (190-420 • C), char layer and CaCO 3 formation (420-550 • C), and CaCO 3 decomposition to CaO (550-800 • C) [23,24], with a residue of 28.1%. The thermal decomposition process in the coated separator was essentially the same as in the CA separator, with simultaneous PVDF decomposition at 420-550 • C [25] and no additional decomposition stages. ...

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Calcium Alginate Fibers/Boron Nitride Composite Lithium-Ion Battery Separators with Excellent Thermal Stability and Cycling Performance

... For example, Yang and their team developed a novel curcumin-loaded lysine-modified alginate film reinforced by lignosulfonic acid that leverages the pH-sensitive color change properties of curcumin to provide an effective and reliable means of monitoring shrimp freshness (M. Yang et al., 2024). By visually indicating shrimp spoilage through a color change, curcumin typically shifts from yellow to red or brown as the pH increases, indicating spoilage. ...

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Smart Alginate Nanomaterials: Revolutionizing Food Across Delivery, Preservation, Packaging, Safety, and Waste Upcycling

... For ease of fitting, both sides of the equation are obtained by taking the logarithm of each side [44,45]: ...

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Preparation of nanowire-like core–shell Ni3Se4@NiCo2O4/NF composite electrodes for high-performance supercapacitors

... The flame retardancy of polymeric materials was characterized by the limiting oxygen index (LOI), the vertical burning (UL94) and the cone calorimeter tests, the results were shown in Table 1 and Fig. 6 (d-f). The LOI value is the minimum concentration of oxygen that maintains the sample burning for a specified time or distance (Wang et al. 2024). As shown in Table 1, the LOI value of the SA aerogel was merely 20.5%. ...

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Dual cross-linked alginate/lignosulfonate—based aerogel with robust flame retardancy and antibacterial property

... Broadly, the impact of Fcontaining materials on PSCs can be summarized in three aspects: 1) utilizing the coordination ability of F to passivate defects, thereby reducing nonradiative recombination and improving the quality of perovskite films; 2) using the polarization ability of F to induce the formation of interface dipoles, which improves the interface WF and enhances the transport capacity of charge carriers; and 3) employing the strong hydrophobic nature of F to improve the resistance of PSCs to moisture/oxygen, enhancing the long-term stability of devices. [115] While the incorporation of F-containing materials is a promising approach to boost both the photoelectric performance and the durability of perovskites, several challenges remain. This review identifies potential hurdles and avenues for future improvement, including: 1) using molecular engineering to reasonably select and adjust molecular configurations, comprehensively considering the effects of electronegativity and steric hindrance on perovskites; 2) fine-tuning addition of F-containing materials and controlling factors such as annealing temperature to optimize the interaction between F-containing molecules and perovskite, thereby improving the crystallization process; 3) addressing the potential toxicity and environmental unfriendly issues associated with F-containing materials by ensuring proper devices encapsulation to prevent leakage and mitigate environmental impacts. ...

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Influence of F‐Containing Materials on Perovskite Solar Cells

... A variety of novel materials was incorporated to enhance the flame retardant properties of cellulose nanofiber composite foams, such as flame retardant polymers and inorganic fillers (Sáez De Guinoa et al. 2017;Chen et al. 2020;Yang et al. 2022;Liu et al. 2024). For instance, Xu et al. (2023) used biodegradable binder PVA and biguanide phosphonate (BGP) to construct CNFs-based aerogel with a threedimensional network of KF tubular structure, which had high flame retardancy. ...

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High mechanical strength, flame retardant, and waterproof silanized cellulose nanofiber composite foam for thermal insulation

... The density states of ZnSe/CoSe, ZnSe, and CoSe were also calculated ( Fig. 7j-l). It is noted the ZnSe/CoSe demonstrates the elimination of the bandgap and the higher density of state with strong electron delocalization around the Fermi level (Fig. 7j), suggesting that the formation of the heterointerface of ZnSe/CoSe enhances electrical conductivity compared with bare ZnSe and CoSe [52][53][54][55][56][57]. Figure 8a, b show charge density difference models to investigate the binding characteristics of the adsorbed Na atoms. Compared with ZnSe and CoSe, there is stronger electronic interaction when Na adsorbed on ZnSe/CoSe heterostructure, revealing the heterostructure is more favorable for trapping sodium, which will contribute to higher redox reaction activity. ...

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Zinc selenide/cobalt selenide in nitrogen-doped carbon frameworks as anode materials for high-performance sodium-ion hybrid capacitors

... Polymers 2024, 16, 2021 2 of 36 muscles and organs, sensors, wound dressings, soft robotics, food packaging or environmental applications. The properties and functions required for a particular application can be fine-tuned by a careful selection of the crosslinking method, PVA characteristics and of other used components for preparing high-performance composites [2][3][4][5][6][7][8][9][10]. ...

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Recent Advances in Poly(vinyl Alcohol)-Based Hydrogels

... Since the carboxyl groups in the G segment of alginate can chelate with Ga 3+ , a thin layer of gallium alginate gel can uniformly cover the surface of MLM droplets (Figs. S7 and S8) [33][34][35]. The formation mechanism is explained in the supporting information. ...

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Inter-Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding, Sensing and Thermal Management

... Chitosan is a deacetylated chitin derivative that is non-toxic, biocompatible, and can be applied as a coating material to create a water-repellent or waterproof [70,71]. Chitosanbased coating materials were applied via dispersion casting directly onto carrageenan/ZnO composite films [71] and pectin films [64]. ...

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Water Repellent Coating in Textile, Paper and Bioplastic Polymers: A Comprehensive Review