Title : 1,3,5-Triethynylbenzene-based conjugated microporous polymers: Green mechanochemical synthesis and energy storage applications
Abstract:
Research is increasingly focusing on novel technologies for energy production and storage, recognizing the significant economic and societal impacts. Among these, conjugated microporous materials (CMPs) are gaining attention for their potential in energy storage applications. CMPs are synthesized from fused and non-fused aromatic building blocks, offering large surface areas, structural tunability, fixed building blocks, photophysical stability, and extended π-conjugation. These properties make CMPs suitable for a variety of applications, including gas adsorption and separation, catalysis, fluorescence sensing, solar fuel production, and biological uses.
Currently, there is a significant interest in utilizing CMPs for energy storage due to their extended π- conjugation, large surface areas, appropriate microporous characteristics, and conductivity. These features make them ideal candidates for supercapacitors and batteries. However, optimizing structure-property relationships and developing green synthetic methods are crucial challenges that need to be addressed.
This research presents the design and green catalytic mechanochemical synthesis of novel CMP materials based on triethynylbenzene as a central core, using the Sonogashira-Hagihara coupling under air. Mechanochemistry is highlighted by IUPAC as a top emerging technology for sustainability. The synthesized polymers are conjugated with scaffolds having different electronic nature like benzene, thiadiazole, and benzo[d][1,3]dioxole (J-BDOX) to study structure-property relationships of CMPs for energy storage. The J-BDOX material demonstrated significant energy storage properties, with a specific capacitance of 147 F g?¹ at a current density of 1 A g?¹ and a redox window of 1.8 V. It also showed excellent cyclic stability over 100 cycles at various current densities (0.5 A g?¹ to 7 A g?¹). These findings indicate that the newly designed CMP materials are highly promising for energy storage applications.
Audience Take Away
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Audience can apply knowledge of important class of materials (CMPs) to develop advanced materials for energy storage applications.
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They can utilize the new green synthetic approaches outlined to create sustainable materials.
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The information on optimizing structure-property relationships can guide the design of more efficient and effective materials for various applications.
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Provides insights into creating high-performance energy storage devices like supercapacitors and batteries.
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Helps in developing sustainable materials, aligning with green chemistry goals.
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Enhances their understanding of CMPs, allowing for innovative applications in energy, catalysis, and sensor development.
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Faculty can integrate these findings into courses on materials science, chemistry, and renewable energy.
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Provides a basis for further research on CMPs and their applications in various fields.
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Offers a practical example of applying green chemistry principles in advanced material synthesis.
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It offers a method for synthesizing CMPs efficiently and sustainably.
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The green synthesis approach can reduce the complexity and environmental impact of creating advanced materials.
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Provides a clear pathway to developing high-performance materials for energy storage, simplifying the design process.
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Understanding the structure-property relationships helps in designing more accurate and effective energy storage materials.
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Offers empirical data on the performance of CMPs, guiding design decisions for energy applications.
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Promotes sustainability in material synthesis through green chemistry approaches.
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Encourages interdisciplinary collaboration by bridging chemistry, materials science, and energy engineering.
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Provides a framework for future innovations in energy storage technologies.
