Dibromomethane Knitted Highly Porous Hyper‐Cross‐Linked Polymers for Efficient High‐Pressure Methane Storage

Yang, Shoukun; Zhong, Zicheng; Hu, Jiarui; Wang, Xiaoyan; Tan, Bien

doi:10.1002/adma.202307579

Cited by 19 publications

(3 citation statements)

References 59 publications

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“…Also in terms of energy storage, especially in areas such as supercapacitors and lithium-ion batteries, a high specific surface area means more active sites and faster ion transport rates, thereby improving the performance of energy storage devices. By adjusting the pore structure, it is possible to optimize the material's gas adsorption properties, such as methane 127 and hydrogen. 128 Thereby increasing the storage density and release rate of energy.…”

Section: Applicationsmentioning

confidence: 99%

Versatile Hyper-Cross-Linked Polymers Derived from Waste Polystyrene: Synthesis, Properties, and Intentional Recycling

Song,

Wen,

Wang

et al. 2024

Langmuir

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Waste polystyrene contributes considerably to environmental pollution due to its persistent nature, prompting a widespread consensus on the urgent need for viable recycling solutions. Owing to the aromatic groups structure of polystyrene, hyper-cross-linked polymers can be synthesized through the Friedel−Crafts cross-linking reaction using Lewis acids as catalysts. In addition, hyper-cross-linked polystyrene and its carbonaceous counterparts can be used in several important applications, which helps in their efficient recycling. This review systematically explores methods for preparing multifunctional hypercross-linked polymers from waste polystyrene and their applications in sustainable recycling. We have comprehensively outlined various synthetic approaches for these polymers and investigated their physical and chemical properties. These multifunctional polymers not only exhibit structural flexibility but also demonstrate diversity in performance, making them suitable for various applications. Through a systematic examination of synthetic methods, we showcase the cutting-edge positions of these materials in the field of hyper-crosslinked polymers. Additionally, we provide in-depth insights into the potential applications of these hyper-cross-linked polymers in intentional recycling, highlighting their important contributions to environmental protection and sustainable development. This research provides valuable references to the fields of sustainable materials science and waste management, encouraging further exploration of innovative approaches for the utilization of discarded polystyrene.

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Section: Applicationsmentioning

confidence: 99%

Versatile Hyper-Cross-Linked Polymers Derived from Waste Polystyrene: Synthesis, Properties, and Intentional Recycling

Song,

Wen,

Wang

et al. 2024

Langmuir

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“…To this end, exploring the use of a mixed solvent (DCM/DCE) as the dual cross-linker is highly desirable, potentially leading to larger total pore volumes of HCPs while maintaining their high surface areas. By employing low-active DCE at room temperature, it was possible to slowly form a hierarchical pore structure, rather than overcross-linking and forming micropores at the onset of polymerization, which is typical of high-active DCM . The dual cross-linking process facilitated by DCE allows a gradual and orderly development of enlarged pore sizes and interconnected networks.…”

Section: Introductionmentioning

confidence: 99%

“…Instead, HCPs exhibit better structural stability than MOFs due to their highly robust covalent bonding via the irreversible Friedel–Crafts alkylation reaction, making them more conducive to high-pressure methane storage and delivery in long-term practical applications . Despite limited work that has explored HCPs as methane adsorbents, there is an ongoing focus on optimizing surface areas and achieving high pore volumes.…”

Section: Introductionmentioning

confidence: 99%

High Pore Volume Hyper-Cross-Linked Polymers via Mixed-Solvent Knitting: A Route to Superior Hierarchical Porosity for Methane Storage and Delivery

Hu,

Yang,

Wang

et al. 2024

Macromolecules

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Delving into effective polymerization systems to maximize the porosity of hyper-cross-linked polymers (HCPs) is highly favorable for simultaneously improving their high-pressure methane storage and delivery capacities. In the present work, a mixed-solvent knitting strategy was introduced to construct hierarchical polymer architectures at room temperature using dichloromethane (DCM) and dichloroethane (DCE) as dual external cross-linkers. A strong correlation exists between the textural properties of these polymers and their structural expanding/shrinking variations, showing a smooth transition from a highly microporous network to a hierarchical porous framework. Especially, HCP-MS-3 knitted by the mixed solvents of 1:1 volume ratio of DCM to DCE has an impressive high pore volume of 2.72 cm 3 g −1 , surpassing almost all previously reported HCPs, which not only exhibits an excellent gravimetric methane storage capacity up to 0.429 g g −1 at 273 K but also shows an effective methane delivery rate of nearly 90% from 5 to 100 bar. This simple and efficient mixed-solvent knitting strategy contributes a promising approach for the rational design of highly porous HCPs as low-cost and highcapacity methane adsorbents, which is highly desired for practical methane storage applications.

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High Hydrogen Storage in Trigonal Prismatic Monomer‐Based Highly Porous Aromatic Frameworks

Kim,

Chen,

Kim

et al. 2024

Advanced Materials

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Hydrogen storage is crucial in the shift toward a carbon‐neutral society, where hydrogen serves as a pivotal renewable energy source. Utilizing porous materials can provide an efficient hydrogen storage solution, reducing tank pressures to manageable levels and circumventing the energy‐intensive and costly current technological infrastructure. Herein, we report two highly porous aromatic frameworks (PAFs), C‐PAF and Si‐PAF, prepared through a Yamamoto C‐C coupling reaction between trigonal prismatic monomers. These PAFs exhibited large pore volumes and BET areas, 3.93 cm3 g−1 and 4857 m2 g−1 for C‐PAF, and 3.80 cm3 g−1 and 6099 m2 g−1 for Si‐PAF, respectively. Si‐PAF exhibited a record‐high gravimetric hydrogen delivery capacity of 17.01 wt% and a superior volumetric capacity of 46.5 g L−1 under pressure‐temperature swing adsorption conditions (77 K, 100 bar → 160 K, 5 bar), outperforming benchmark hydrogens storage materials. By virtue of the robust C‐C covalent bond, both PAFs showed impressive structural stabilities in harsh environments and unprecedented long‐term durability. Computational modeling methods were employed to simulate and investigate the structural and adsorption properties of the PAFs. These results demonstrate that C‐PAF and Si‐PAF are promising materials for efficient hydrogen storage.This article is protected by copyright. All rights reserved

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Dibromomethane Knitted Highly Porous Hyper‐Cross‐Linked Polymers for Efficient High‐Pressure Methane Storage

Cited by 19 publications

References 59 publications

Versatile Hyper-Cross-Linked Polymers Derived from Waste Polystyrene: Synthesis, Properties, and Intentional Recycling

Versatile Hyper-Cross-Linked Polymers Derived from Waste Polystyrene: Synthesis, Properties, and Intentional Recycling

High Pore Volume Hyper-Cross-Linked Polymers via Mixed-Solvent Knitting: A Route to Superior Hierarchical Porosity for Methane Storage and Delivery

High Hydrogen Storage in Trigonal Prismatic Monomer‐Based Highly Porous Aromatic Frameworks

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