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781.

Effect of microporosity on nitrogen-doped microporous carbons for electrode of supercapacitor

Eun-A Cho, Seul-Yi Lee, Soo-Jin Park 한국탄소학회 Carbon Letters 4 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 9 210-213 (4 pages)

Eun-A Cho, Seul-Yi Lee, Soo-Jin Park 저
...
- 1,500원
Nitrogen-doped microporous carbons were prepared using a polyvinylidene fluoride/melamine mixture. The electrochemical performance of the nitrogen-doped microporous carbons after being subjected to different carbonization conditions was investigated. The nitrogen to carbon ratio and specific surface area decreased with an increase in the carbonization temperature. However, the maximum specific capacitance of 208 F/g was obtained at a carbonization temperature of 800°C because it produced the...
782.

Adsorption of volatile organic compounds using activated carbon fiber filter in the automobiles

Hyung Suk Moon, In Soo Kim, Sin Jae Kang, Seung Kon Ryu 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 8 203-209 (7 pages)

Hyung Suk Moon, In Soo Kim, Sin Jae Kang, Seung Kon Ryu 저
...
- 3,000원
of the unused bed was short, and sharp “S” -type breakthrough curve was plotted soon after breakpoint, showing a narrow mass transfer zone of toluene on the ACF. The adsorption amount of toluene on the ACF filter was proportional to the specific surface area of the ACF; however, the development of mesopores 2-5 nm in size on the ACF was very effective with regard to the adsorption of toluene. The ACF air clarifier filter is strongly recommended to remove VOCs in newly produced automobiles.
783.

Preparation of novolac-type phenol-based activated carbon with a hierarchical pore structure and its electric double-layer capacitor performance

Dayoung Lee, Jin-Young Jung, Mi-Seon Park, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 6 192-197 (6 pages)

Dayoung Lee, Jin-Young Jung, Mi-Seon Park, Young-Seak Lee 저
...
- 3,000원
materials. The morphology of the well-developed pore structure was characterized using field-emission scanning electron microscopy. The novolac-type phenol-based activated carbon retained hierarchical pores (micropores and mesopores); it exhibited high Brunauer-Emmett-Teller specific surface areas and hierarchical pore size distributions. The hierarchical pore novolac-type phenol-based activated carbon was used as an electrode in electric double-layer capacitors, and the specific capacitance and...
784.

Influence of ionic liquid additives on the conducting and interfacial properties of organic solvent-based electrolytes against an activated carbon electrode

Kyungmin Kim, Yongju Jung, Seok Kim 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 5 187-191 (5 pages)

Kyungmin Kim, Yongju Jung, Seok Kim 저
...
- 1,500원
This study reports on the influence of N-butyl-N-methylpyrrolidinium tetrafluoroborate (PYR14BF4) ionic liquid additive on the conducting and interfacial properties of organic solvent based electrolytes against a carbon electrode. We used the mixture of ethylene carbonate/dimethoxyethane (1:1) as an organic solvent electrolyte and tetraethylammonium tetrafluoroborate (TEABF4) as a common salt. Using the PYR14BF ionic liquid as additive produced higher ionic conductivity in the electrolyte and...
785.

Method and mechanism of dispersing agent free dispersion of short carbon fibers in silicon carbide powder

Thakur Sudesh Kumar Raunija, Mariamma Mathew, Sharad Chandra Sharma 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 4 180-186 (7 pages)

Thakur Sudesh Kumar Raunija, Mariamma Mathew, Sharad Chandra Sharma 저
...
- 3,000원
This study highlights a novel method and mechanism for the rapid and effective milling of carbon fibers (CFs) in silicon carbide (SiC) powder, and also the dispersion of CFs in SiC powder. The composite powders were prepared by chopping and exfoliation of CFs, and ball milling of CFs and SiC powder in isopropyl alcohol. A wide range of CFs loading, from 10 to 50 vol%, was studied. The milling of CFs and SiC powder was checked by measuring the average particle size of the composite powders. The...
786.

Facile preparation of self-assembled wool-based graphene hydrogels by electron beam irradiation

Mira Park, Bishweshwar Pant, Jawun Choi, Yong Wan Park, Chohye Lee, Hye Kyoung Shin, Soo-Jin Park4, Hak-Yong Kim 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.2 11 136-141 (6 pages)

Mira Park, Bishweshwar Pant, Jawun Choi, Yong Wan Park, Chohye Lee, Hye Kyoung Shin, Soo-Jin Park4, Hak-Yong Kim 저
...
- 3,000원
Three dimensional self-assembled graphene hydrogels were easily fabricated by electron beam irradiation (EBI) using an aqueous solution of wool/poly(vinyl alcohol) and graphene oxide (GO). After exposure to various levels of EBI radiation, the highly porous, self-assembled, wool-based graphene hydrogels were characterized using scanning electron microscopy and Fourier-transform infrared spectroscopy; to determine the gel fraction, degree of swelling, gel strength, kinetics-of-swelling analyses...
787.

Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications

Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 16 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.2 5 89-104 (16 pages)

Long-Yue Meng, Soo-Jin Park 저
...
- 4,500원
Materials with appropriate surface roughness and low surface energy can form superhydrophobic surfaces, displaying water contact angles greater than 150°. Superhydrophobic carbon-based materials are particularly interesting due to their exceptional physicochemical properties. This review discusses the various techniques used to produce superhydrophobic carbon-based materials such as carbon fibers, carbon nanotubes, graphene, amorphous carbons, etc. Recent advances in emerging fields such as...
788.

My life and carbon

peter A. Thrower 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.2 1 1-5 (5 pages)

peter A. Thrower 저
...
- 1,500원
to study how high-energy neutron radiation affected graphite. I was given an assistant named Barry Sheldon to work with me. My first task was to read a pile of papers and reports dealing with the effects of radiation damage on nuclear graphite, including stored-energy release and the recent annealing of the graphite core in one of the on-site reactors. There were several internal reports about dimensional changes produced by irradiation, and other property changes were being systematically and...
789.

Study on effect of chemical impregnation on the surface and porous characteristics of activated carbon fabric prepared from viscose rayon

Surendra Bhati, J.S. Mahur, Savita Dixit, O. N. Chobey 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.1 6 45-49 (5 pages)

Surendra Bhati, J.S. Mahur, Savita Dixit, O. N. Chobey 저
...
- 1,500원
In this study, synthetic viscose rayon fabric has been used for preparing activated carbon fabric (ACF), impregnated with different concentrations of H3PO4. The effect of H3PO4 impregnation on the weight yield, surface area, pore volume, chemical composition and morphology of ACF were studied. Experimental results revealed that both Brunauer-Emmett- Teller surface area and micropore volume increased with increasing H3PO4 concentration; however, the weight yield and microporosity (%) decreased....
790.

Morphological optimization of process parameters of randomly oriented carbon/carbon composite

Thakur Sudesh Kumar Raunija, Sushant Krunal Manwatkar, Sharad Chandra Sharma, Anil Verma 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.1 3 25-31 (7 pages)

Thakur Sudesh Kumar Raunija, Sushant Krunal Manwatkar, Sharad Chandra Sharma, Anil Verma 저
...
- 3,000원
A microstructure analysis is carried out to optimize the process parameters of a randomly oriented discrete length hybrid carbon fiber reinforced carbon matrix composite. The composite is fabricated by moulding of a slurry into a preform, followed by hot-pressing and carbonization. Heating rates of 0.1, 0.2, 0.3, 0.5, 1, and 3.3°C/min and pressures of 5, 10, 15, and 20 MPa are applied during hot-pressing. Matrix precursor to reinforcement weight ratios of 70:30, 50:50, and 30:70 are also...

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