scholarly journals Formation of Porous Carbon Materials from Phenol-formaldehyde Resin and Their Adsorption Characteristics

TANSO ◽  
1997 ◽  
Vol 1997 (177) ◽  
pp. 76-79 ◽  
Author(s):  
Hirokazu Oda ◽  
Ryuzou Tohjo ◽  
Akio Nomura
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Adsorption Characteristics ◽  
Porous Carbon Materials

scholarly journals Nitrogen-Doped Porous Carbon Materials Derived from Graphene Oxide/Melamine Resin Composites for CO2 Adsorption

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5293
Author(s):  
Like Ouyang ◽  
Jianfei Xiao ◽  
Housheng Jiang ◽  
Shaojun Yuan
Keyword(s):  
Graphene Oxide ◽  
Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Co2 Adsorption ◽  
Formaldehyde Resin ◽  
Batch Adsorption ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Adsorption Sites

CO2 adsorption in porous carbon materials has attracted great interests for alleviating emission of post-combustion CO2. In this work, a novel nitrogen-doped porous carbon material was fabricated by carbonizing the precursor of melamine-resorcinol-formaldehyde resin/graphene oxide (MR/GO) composites with KOH as the activation agent. Detailed characterization results revealed that the fabricated MR(0.25)/GO-500 porous carbon (0.25 represented the amount of GO added in wt.% and 500 denoted activation temperature in °C) had well-defined pore size distribution, high specific surface area (1264 m2·g−1) and high nitrogen content (6.92 wt.%), which was mainly composed of the pyridinic-N and pyrrolic-N species. Batch adsorption experiments demonstrated that the fabricated MR(0.25)/GO-500 porous carbon delivered excellent CO2 adsorption ability of 5.21 mmol·g−1 at 298.15 K and 500 kPa, and such porous carbon also exhibited fast adsorption kinetics, high selectivity of CO2/N2 and good recyclability. With the inherent microstructure features of high surface area and abundant N adsorption sites species, the MR/GO-derived porous carbon materials offer a potentially promising adsorbent for practical CO2 capture.

Physico-mechanical characteristics and phase composition of unburned periclase-carbon refractories on modified phenol-formaldehyde resin

2019 ◽  
pp. 29-33
Author(s):  
D. A. Brazhnik ◽  
G. D. Semchenko ◽  
G. N. Shabanova ◽  
E. E. Starolat ◽  
I. N. Rozhko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Phase Composition ◽  
Mechanical Characteristics ◽  
Carbon Materials ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Ethyl Silicate ◽  
Ammonium Citrate ◽  
Formaldehyde Resin

The possibilities of improving the physico-mechanical properties of periclase-carbon materials by modifying the phenol-formaldehyde resin (PFR) with organoinorganic complexes are described. The composition of the modifying additives, the phase composition of the materials after the PFR hardening are given, the influence of modifiers on the formation of the structure of materials is established. It is shown that the introduction of ethyl silicate or hydrolyzed ethyl silicate into liquid PFR during preparation of the charge contributes to the formation of SiC in the phase composition. The conclusion is made about the rationality of the introduction of ethyl silicate in an amount of from 0,66 to 1 wt. % and the prospects of introducing nickel oxalate into a liquid PFR together with ammonium citrate to increase the compressive strength of periclase-carbon materials up to 60 MPa. Ill. 7. Ref. 9.

Preparation and electrochemical characteristics of electrospun water-soluble resorcinol/phenol-formaldehyde resin-based carbon nanofibers

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40884-40891 ◽  
Author(s):  
Xiaodong Tian ◽  
Ning Zhao ◽  
Kai Wang ◽  
Defang Xu ◽  
Yan Song ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Specific Surface ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Phenol Formaldehyde ◽  
Phenol Formaldehyde Resin ◽  
Water Soluble ◽  
Formaldehyde Resin ◽  
Electrochemical Characteristics ◽  
One Step

Porous carbon nanofibers prepared by combining electrospinning and one-step activation exhibit remarkable capacitance performances due to the synergistic effect of the optimized pore size distribution, specific surface area and surface properties.

Carbon-Carbon Composite Materials Based on Low Modulus Fabrics

2022 ◽  
Vol 1049 ◽  
pp. 240-247
Author(s):  
Ivan S. Zherebcov ◽  
Valeriy V. Savin ◽  
Alexander V. Osadchy ◽  
Victoriia A. Chaika ◽  
Vadim Borkovskih
Keyword(s):  
Carbon Materials ◽  
New Technologies ◽  
Phenol Formaldehyde ◽  
Carbon Composite ◽  
Temperature Treatment ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
Alloying Additives ◽  
Carbon Composite Materials ◽  
Low Modulus

Scientific research and the search for new technologies to increase the level of mechanical and high-temperature properties are ongoing. The article discusses the technology of using carbon materials, pyrolysis and impregnation with phenol-formaldehyde resins. It is shown that the proposed technology makes it possible to achieve a sufficient level of mechanical properties when using low-modulus carbon fabrics after pyrolytic treatment as a prepreg at a temperature treatment no higher than 900 K. Pillowcase and resole phenol-formaldehyde resins were used to impregnate the prepreg. The proposed technology also allows the introduction of alloying additives into the system to improve the properties. An example of the introduction of nitrogen into a composite by adding urotropine to a phenol-formaldehyde resin, which was used to impregnate the composite, is considered.

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