Preparation and characterization of petroleum‐pitch‐based carbon aerogels

Zeng, Xianhua; Wu, Dehai; Fu, Ruowen

doi:10.1002/app.29436

Cited by 6 publications

(5 citation statements)

References 19 publications

(25 reference statements)

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“…Currently, this simple and effective technique has been scaled-up for the production of polymeric and carbon aerogels, and they have found utility in some applications, such as advanced supercapacitor electrode materials, − catalyst supports for fuel cells, − and adsorption of small organic molecules from aqueous solution. , Additionally, some relatively cheap raw materials for polymeric and carbon aerogels, such as phenol–formaldehyde, phenol–furfural, , and tannin–formaldehyde, have been developed. The polymeric and carbon aerogels prepared by various aforementioned procedures have been proved to have extensive application prospects in many fields, such as adsorption, energy, catalysis, and environment. ,,− ,,− …”

Section: Direct Synthesis Methodologymentioning

confidence: 99%

Design and Preparation of Porous Polymers

et al. 2012

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Section: Direct Synthesis Methodologymentioning

confidence: 99%

Design and Preparation of Porous Polymers

et al. 2012

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“…In order to address the problem, some new reaction systems have been successfully developed to obtain organic aerogels via facile ambient pressure drying techniques, which can be directly carbonized to form carbon aerogels . Meanwhile, developing some relatively cheap raw materials for CAs is also an alternative to reduce the cost . For example, some CAs with intriguing properties have been prepared from some cheap and nontoxic biomass polymers such as bacterial cellulose and starch …”

Section: Precursors For Porous Carbonsmentioning

confidence: 99%

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

et al. 2018

Advanced Materials

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have triggered serious threats to the survival and development of mankind. Consequently, exploring novel materials with task-specific applications is of fundamental importance for the sustainable development of economy and society. The burgeoning progress of nanomaterials in recent years has demonstrated that porosity is one of the essential factors in determining material properties for possible breakthroughs in their applications. Therefore, porous materials are playing important roles in many well-established applications and emerging technologies for challenging social and economic issues due to their intrinsic characteristics of large surface areas, open channels, and the possible control over the pore environment. According to International Union of Pure and Applied Chemistry, the pores of porous materials are classified into three categories by their pore sizes: micropores are smaller than 2 nm, mesopores are in the range of 2-50 nm, and macropores are larger than 50 nm. [1] Their pore walls include the organic skeleton (e.g., porous polymers, organic porous cages, and supramolecular organic frameworks), the inorganic skeleton (e.g., zeolites, porous carbons, and mesoporous silica), and the hybrid skeleton (e.g., metal-organic frameworks (MOFs)).Among the developed porous materials, porous polymers have attracted an increasing level of research interest owing to their potential to integrate the advantages of both porous materials and polymers. [2,3] Table 1 lists the characteristic structural features and properties of porous polymers, and gives a systematic comparison to other typical porous materials, such as zeolites, porous carbons, and MOFs. Porous polymers, zeolites, porous carbons, and MOFs share a number of features such as high permanent porosities, large surface areas, and designable pores and voids. However, they are different in several important aspects. The major advantages of porous polymers over many other porous materials are their chemical diversity and easy processability. Compared to zeolites and porous carbons, the synthesis of porous polymers is generally more versatile and can be approached in a way that conforms to the concept of rational materials design. Similar to MOFs, porous polymers inherit the excellent chemical and physical tunability afforded by the versatility of organic chemistry. Furthermore, Exploring advanced porous materials is of critical importance in the development of science and technology. Porous polymers, being famous for their all-organic components, tailored pore structures, and adjustable chemical components, have attracted an increasing level of research interest in a large number of applications, including gas adsorption/storage, separation, catalysis, environmental remediation, energy, optoelectronics, and health. Recent years have witnessed tremendous research breakthroughs in these fields thanks to the unique pore structures and versatile skeletons of porous polymers. Here, recent milestones in the diverse applications of porous polymers are presented, ...

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“…Among porous materials, porous polymers in particular have attracted a growing level of interest due to the potential for combining characteristics of both polymers and porous microstructures . Typical methods developed for fabricating such types of porous microstructures include direct templating, block copolymer self‐assembly, direct synthesis, high internal phase emulsion polymerization, breath figures, interfacial polymerization, and non‐solvent‐induced phase separation . Most of those methods require the use of colloidal particles, surfactants, or block copolymers as templates in conjunction with sol‐gel techniques.…”

Section: Methodsmentioning

confidence: 99%

Femtosecond Laser Direct Writing of Porous Network Microstructures for Fabricating Super‐Slippery Surfaces with Excellent Liquid Repellence and Anti‐Cell Proliferation

Yong

Huo

Yang

et al. 2018

Adv Materials Inter

103

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In this paper, it is demonstrated that one‐step femtosecond laser ablation can be used to directly fabricate porous network microstructures on various polymer surfaces, including poly(ethylene terephthalate) (PET), poly(methyl methacrylate), polyamide, polycarbonate, polyethylene, and polylactic acid. Taking PET as an example, following femtosecond laser ablation, the PET surface is fully covered by large numbers of interconnected pores with a diameter of several hundred nanometers. The chemical treatment of the porous surface for further lowering of its surface free energy and infusion with lubricating liquid led to the successful fabrication of a slippery surface. The as‐synthesized slippery surface showed excellent liquid‐repellent ability; various liquids are demonstrated to freely slide down such a surface. Compared to previously reported slippery surfaces, the femtosecond laser‐induced slippery surface consists of a porous layer and substrate layer that are inherently one material. Furthermore, it is found that the use of the original laser‐induced porous PET surface as a culture substrate is able to promote the growth of C6 glioma cells, while the slippery PET surface completely inhibits C6 glioma cell growth. It is revealed that femtosecond laser direct writing can be used as a general method to form porous microstructures on various polymer surfaces.

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Preparation and characterization of petroleum‐pitch‐based carbon aerogels

Cited by 6 publications

References 19 publications

Design and Preparation of Porous Polymers

Design and Preparation of Porous Polymers

Porous Polymers as Multifunctional Material Platforms toward Task‐Specific Applications

Femtosecond Laser Direct Writing of Porous Network Microstructures for Fabricating Super‐Slippery Surfaces with Excellent Liquid Repellence and Anti‐Cell Proliferation

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