Effects of different catalysts on performance of self-bonded SiC refractories

Wang, Hui‐Fang; Zhang, Haijun; Bi, Yingpu; Li, Haisheng; Lv, Lihua; Yang, Haiqing; Jiang, Wei

doi:10.1016/j.ceramint.2021.06.215

Cited by 8 publications

(1 citation statement)

References 48 publications

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“…The specimen owned the best hydrophobicity (water contact angle 123°) due to the use of a small amount of Fe (1.0%). Catalytic synthesis methods have recently received more attention as a result of lower reaction temperature, high efficiency, and less energy consumption [34][35][36][37][38][39][40]. The study by Wang et al [41] shows that ferric nitrate transformed into Fe 3 O 4 at 673 K, and into metallic Fe and Fe x C carbide at 873-1273 K. The optimal weight ratio of Fe catalyst to phenol resin for CNT growth was 1.00 wt%, and the optimal temperature was 1073 K. Density functional theory (DFT) calculations suggest that Fe catalysts facilitate the CNT growth by increasing the bond length and weakening the bond strength in C 2 H 4 via donating electrons to the C atoms in it.…”

Section: The Hydrophobicity Of Modified Porous Materialsmentioning

confidence: 99%

Preparation of nanocarbon modified vermiculite ceramics with excellent adsorption capacity

Wang¹,

Shiming

et al. 2023

Mater. Res. Express

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Nanocarbon modified vermiculite porous ceramics with hydrophobicity were prepared using vermiculite as the starting materials and polyethylene terephthalate (PET) as the carbon precursor via the catalytic reaction method. The microstructures, hydrophobicity, and adsorption capacity of as-prepared porous ceramics were characterized by scanning electron microscope, water contact angle testing, and weight gaining, respectively. The results revealed that the nano-carbon generated from the pyrolysis of PET formed on the surface of the pores in ceramics. The water contact angle of as-prepared modified porous ceramics with 82% porosity was up to 123 °. The as-prepared porous ceramics showed highly efficient adsorption to oils and were very durable, and would be excellent candidate materials to separate the oil from the water/oil mixture.

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