Rapid fabrication of low density melamine–formaldehyde aerogels

Ren, Hao; Zhu, Jianping; Bi, Yutie; Xu, Yewei; Zhang, Lin; Shang, Chengwei

doi:10.1007/s10934-017-0446-6

Cited by 15 publications

(4 citation statements)

References 27 publications

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“…Synthesis of mesoporous N-doped carbons MF-NC_SiO2 supports were prepared by carbonization of a melamineformaldehyde (MF) resin in accordance with the method proposed by Pekala (40), and subsequent modifications (28,33,41). In this work, melamine (M) (Sigma-Aldrich, 99%) was dissolved in deionized water, the pH was adjusted to ~ 8 using NaOH (Sigma-Aldrich, reagent grade, 97%), and colloidal silica (20 nm) (Ludox® AS-40) was added to the reaction mixture as a hard-template.…”

Section: Methodsmentioning

confidence: 99%

Templated N-Doped Carbons for Energy Storage and Conversion

et al. 2020

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Sustainable energy sources, energy storage and conversion devices are required to satisfy the global increase in energy demand and to minimize the environmental problems associated with the use of fossil fuels. Carbon materials are extensively used in supercapacitors, batteries, and fuel cells. For this reason, methods aimed at the development of new carbon materials, with high surface areas and tailorable surface chemistry has been an area of interest for the last couple of decades. More recently, heteroatom-doped carbons have obtained more attention due to the possibility of enhancing the catalytic activity of Pt as well as replacing Pt by non-noble metals, particularly N-doped carbons. In this study, mesoporous carbon (MC) materials were produced by carbonization of nitrogen-rich, melamine-formaldehyde (MF) polymer gels in the presence of SiO2 nanoparticles as a hard-template. Carbon products (MF-NC) with up to 8 N-atom% and surface areas up to 440 m2/g were obtained depending on the SiO2 content (20 nm) and annealing conditions (950°C or 1500°C). Pt/MF-NC were prepared by an impregnation method to evaluate the electrochemical performance of these modified carbon materials as catalyst supports. The incorporation of Fe was also considered to replace Pt as the catalyst, and preliminary stability and catalytic activity toward the oxygen reduction reaction (ORR) will be discussed in this paper.

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Section: Methodsmentioning

confidence: 99%

Templated N-Doped Carbons for Energy Storage and Conversion

et al. 2020

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“…10,11 In recent years, people have developed a variety of aerogels for the treatment of oily wastewater. According to different synthesis methods and drying technologies, they can be roughly divided into oxide aerogels (such as SiO 2 , TiO 2 , Al 2 O 3 , and ZnO), [12][13][14][15] organic aerogels (such as resorcinol-formaldehyde and melamine-formaldehyde), 16,17 inorganic-organic composite aerogel (such as ber SiO 2 composite aerogel and cellulose composite aerogel), 18,19 and other aerogels (polysaccharide-based aerogels, carbide aerogels, chalcogenide aerogels). [20][21][22] Among them, polysaccharide-based aerogels are unique functional materials.…”

Section: Introductionmentioning

confidence: 99%

Natural polysaccharide-based aerogels and their applications in oil–water separations: a review

Guo

2022

J. Mater. Chem. A

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“…Melamine(-formaldehyde) resin is a representative thermoplastic resin, along with phenol-formaldehyde and resorcinol-formaldehyde resins; their use in the fabrication of monolithic porous materials and aerogels has been reported. [17][18][19] Water-soluble methylolmelamine, a partial polymerization product of melamine and formaldehyde, is industrially available and can be used as a precursor to prepare monolithic gels in acidic aqueous solutions. In this study, melamine resin aerogels were prepared using Nikaresin S-260 (Nippon Carbide Industries Co., Inc., Japan) as a precursor with acetic acid as a catalyst.…”

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confidence: 99%

CNC-machinable boehmite nanofiber-melamine-formaldehyde composite aerogels and derivatives for thermal insulation and optical applications

Hayase

2023

Preprint

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Composite aerogels combining melamine resin and boehmite nanofibers were successfully prepared using a sol-gel reaction in a mixed solvent of aqueous acetic acid and N,N-dimethylformamide. The composite aerogel exhibits low thermal conductivity and surface processability, making it a potential thermal insulating material for electronic substrates. Transparent γ-alumina aerogels and black alumina-graphite aerogels with designed surface topography were also prepared through CNC machining and calcination. These aerogels with precise surface structures are expected to have applications in fields such as optical materials.

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Rapid fabrication of low density melamine–formaldehyde aerogels

Cited by 15 publications

References 27 publications

Templated N-Doped Carbons for Energy Storage and Conversion

Templated N-Doped Carbons for Energy Storage and Conversion

Natural polysaccharide-based aerogels and their applications in oil–water separations: a review

CNC-machinable boehmite nanofiber-melamine-formaldehyde composite aerogels and derivatives for thermal insulation and optical applications

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