Effect of carbonization temperature on the structural changes of woodceramics impregnated with liquefied wood

Hirose, Takashi; Fujino, Takahiro; Fan, Tongxiang; Endo, Hiroyuki; Okabe, Toshihiro; Yoshimura, Masahiro

doi:10.1016/s0008-6223(01)00197-x

Cited by 65 publications

(35 citation statements)

References 5 publications

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“…[15][16][17][18][19] The mode at 1582 cm Ϫ1 is called the G mode. A band around 1357 cm Ϫ1 is called the D mode by disorder-induced scattering, which is due to imperfection or lack of hexagonal symmetry in the carbon structure, resulting in breaking the k-momentum conservation.…”

Section: Microstructure Of Carbon Fiber In Nonwoven Fabricmentioning

confidence: 99%

Properties of carbon nanofibers prepared from electrospun polyimide

Chung

Kim

2005

J of Applied Polymer Sci

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A solution of a polyimide (PI, Matrimid 5218) in dimethylacetamide was electrospun, and carbonization of the electrospun nonwoven fabrics produced carbon nanofiber fabrics. The effects of iron(III) acetylacetonate (AAI) on carbonization and the resulting morphology were also investigated. The carbonization behavior of the nonwoven fabrics was examined by X-ray diffraction and Raman spectroscopy. AAI promoted carbonization of the nonwoven fabrics and increased the carbon yield. Addition of 3 wt % AAI increased the crystal dimension of electrospun PI nanofibers from 1.06 to 4.18 nm and decreased the integrated intensity ratio from 3.37 to 1.83 when heat treated at 1200°C. Scanning electron microscopy images of the carbonized nonwoven fabrics showed that AAI remained as particles within the fibers after carbonization. In addition, transmission electron microscopy observations revealed that turbostratic-oriented graphite layers were observed around the particles even at 1200°C, which have been reported only on carbonization of rigid-chain solvent insoluble PI materials under tension.

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Section: Microstructure Of Carbon Fiber In Nonwoven Fabricmentioning

confidence: 99%

Properties of carbon nanofibers prepared from electrospun polyimide

Chung

Kim

2005

J of Applied Polymer Sci

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“…2(B) is FTIR spectrums of the ceramic waste. The analysis of spectrums indicated sharp peak at 1580 cm -1 is due to scattering from atmospheric oxygen [14]. The peaks in the region of 1600 -1800 cm -1 are associated with the acetate groups [15].…”

Section: Characteristics Of Adsorbentsmentioning

confidence: 99%

Analysis of Mass Transfer Resistance for Adsorption of Phosphate onto Industrial Waste Materials in Plug-flow column

Khamidun

Rahman

2017

MATEC Web Conf.

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Abstract. The understanding resistance of mass transfer for adsorption of phosphate (PO 4 3-) onto industrial waste such as clay brick and ceramic as an adsorbent is important to verify. This study presented the removal of PO 4 3-from a synthetic solution by adsorbing onto the clay brick and ceramic wastes in a plug flow column (PFC). The experimental results showed that increasing the flow rate was decreases the breakthrough time. The mass transfer factor (MTF) models were used to study the behaviours of breakthrough curve and to determine the resistance of mass transfer. The MTF models verified that the resistance of mass transfer could be dependent on porous diffusion until the percentage of outflow reaches 72% for clay brick waste and 86% for ceramic waste, even though film mass transfer can play a minor role in controlling the movement of PO 4 3-from the bulk water to film zone. The results of MTF models coefficient could be indicated to increase the capacity of clay brick and ceramic wastes to adsorb PO 4 3-from synthetic solution, it needs to develop the porosity of these adsorbents by either physical or chemical modification.

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“…Among the applications that have been tried and evaluated include resol -type phenolic resin used in phenolic foam 12) , novolak phenol formaldehyde resin 13) , liquefied wood/ polyurethane films 14) , resin for moulding 15) , wood ceramics 16) , carbon fibres 17) 18) , liquefied wood/epoxy resin 19) , polymer composites 20) , mesoporous activated carbon fibre 21) and fuel for gas turbines 22) .…”

Section: Introductionmentioning

confidence: 99%