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pISSN : 1976-4251 / eISSN : 2233-4998

2020 KCI Impact Factor : 0.33
목적과 범위
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 Carbon Letters는 탄소 재료와 탄소가 풍부한 분자를 완벽하게 다루는 포괄적 인 저널이되는 것을 목표로합니다. 이러한 재료는 다이아몬드와 흑연에서부터 차르, 세미 코크스, 메 조상 물질, 탄소 섬유, 탄소 나노 튜브, 그래 핀, 카본 블랙, 활성탄, 열분해 탄소, 유리와 같은 탄소 등을 포함하지만 이에 국한되지는 않습니다. 위에서 언급 한 다양한 탄소로부터 새로운 탄소 및 복합 재료를 생산하는 것은 저널의 범위 내에 있습니다. 석탄을 포함한 유기 물질에 대한 논문은 연구가 생성 된 탄소 물질과 밀접한 관계가있는 경우에만 고려됩니다. Carbon Letters는 또한 전문 분야의 새로운 발전을 파악하고 온실 효과 및 오존층 고갈과 같은 현재 문제에 대한 대체 에너지 솔루션을 찾기 위해 통합하고자합니다. 재생 가능 에너지 기초, 에너지 저장 및 변환, 태양 에너지, 풍력 에너지, 수력 에너지, 원자력 에너지, 바이오 매스 에너지, 수소 생산 기술 및 기타 청정 에너지 기술도 저널의 범위 내에 있습니다. Carbon Letters는 탄소 과학 및 기술의 이론과 실제의 모든 분야에서 기초 연구에 대한 원본 보고서를 초대합니다. 
편집위원장
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허윤석 (인하대학교)
인용지수
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  • KCI IF(2년) : 0.33
  • KCI IF(5년) : 0.27
  • 중심성지수(3년) : 0.362
  • 즉시성지수 : 0.0526

최근발행 : 2020, Vol.30, No.6

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  • Electric heating performance of carbon thin films prepared from SU-8 photoresist by deep UV exposure and carbonization

    이병민 | 남희균 | 최형열 외 3명 | 2020, 30(6) | pp.595~601 | 피인용수 : 0
    초록
    We report the structural characterization and electric heating performance of carbon thin flms (CTFs), which were prepared from negative-type SU-8 photoresist by deep UV exposure and following carbonization. The prepared CTFs were found to have pseudo-graphitic carbon structures containing partially graphite domains in the amorphous carbon matrix. The CTFs showed a very smooth surface morphology with a roughness of 0.42 nm. The 107 nm-thick CTFs exhibited an excellent electric heating performance by attaining a high maximal temperature of 207 °C and a rapid heating rate of 13.2 °C/s at an applied voltage of 30 V. Therefore, the CTFs prepared in this study can be applied as electrode materials for high-performance electric heaters.
  • Influence of mixed methods on the surface area and gas products of activated carbon

    황상엽 | 이기범 | 김호 외 1명 | 2020, 30(6) | pp.603~611 | 피인용수 : 0
    초록
    Upgraded activated carbons (ACs) are typically synthesized by mixed methods, such as solid–solid mixing and wet impregna�tion of low-grade ACs with KOH. This study compares the properties of upgraded ACs prepared by diferent methods using elemental analysis, X-ray photoelectron spectroscopy, N2 adsorption isotherms, and X-ray difraction. In ACs produced by the solid–solid mixing, the ratio of potassium activator is proportional to the surface area and amount of gas produced. However, in wet impregnated ACs, the potassium ratio exhibits a zero or negative correlation. It is demonstrated that potassium ions in solution are not transferred to K2O and do not contribute to the surface area and pore size, generating less amount and diferent composition of gases. As such, impregnated ACs exhibit similar surface areas and large pores, regardless of the potassium ratio. The physical properties, such as specifc surface areas and pore size distribution, of ACs using wet impregna�tion were similar to the ACs generated by the water physical activation. It indicated that the KOH does not efciently act as a chemical activator in the wet impregnation method. Therefore, a certain amount and suitable mixing method of chemical activator play an important role in the property upgrade of ACs.
  • Continuous synthesis of high-crystalline carbon nanotubes by controlling the configuration of the injection part in the floating catalyst chemical vapor deposition process

    박지홍 | 박준범 | 이성현 외 1명 | 2020, 30(6) | pp.613~619 | 피인용수 : 0
    초록
    Continuous synthesis of high-crystalline carbon nanotubes (CNTs) is achieved by reconfguring the injection part in the reactor that is used in the foating catalyst chemical vapor deposition (FC-CVD) process. The degree of gas mixing is divided into three cases by adjusting the confguration of the injection part: Case 1: most-delayed gas mixing (reference experiment), Case 2: earlier gas mixing than Case 1, Case 3: earliest gas mixing. The optimal synthesis condition is obtained using design of experiment (DOE) in the design of Case 1, and then is applied to the other cases to compare the synthesis results. In all cases, the experiments are performed by varying the timing of gas mixing while keeping the synthesis conditions constant. Production rate (Case 1: 0.63 mg/min, Case 2: 0.68 mg/min, Case 3: 1.29 mg/min) and carbon content (Case 1: 39.6 wt%, Case 2: 57.1 wt%, Case 3: 71.6 wt%) increase as the gas-mixing level increases. The amount of by-products decreases step�wise as the gas-mixing level increases. The IG/ID ratio increases by a factor of 7 from 10.3 (Case 1) to 71.7 (Case 3) as the gas-mixing level increases; a high ratio indicates high-crystalline CNTs. The radial breathing mode (RBM) peak of Raman spectrograph is the narrowest and sharpest in Case 3; this result suggests that the diameter of the synthesized CNTs is the most uniform in Case 3. This study demonstrates the importance of confguration of the injection part of the reactor for CNT synthesis using FC-CVD.