자료유형
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전체 선택해제
총 77건 검색
본문검색 결과만 보기
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Variation of Oxygen Nonstoichiometry of Porous $La_{0.6}Ca_{0.4}MnO_{3-{delta}}$ SOFC-Cathode under Polarization
Mizusaki. Junichiro, Harita. Hideki, Mori. Naoya, Dokiya. Masayuki, Tagawa. Hiroaki 한국세라믹학회 The Korean journal of ceramics 6 Pages
한국세라믹학회 The Korean journal of ceramics 2000, Vol.6 No.2 177-182 (6 pages)
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Effects of Phosphorous-doping on Electrochemical Performance and Surface Chemistry of Soft Carbon Electrodes
Kim. Min-Jeong, Yeon. Jin-Tak, Hong. Kijoo, Lee. Sang-Ick, Choi. Nam-Soon, Kim. Sung-Soo 대한화학회 Bulletin of the Korean Chemical Society 7 Pages
대한화학회 Bulletin of the Korean Chemical Society 2013, Vol.34 No.7 2029-2035 (7 pages)
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SO-DCFC 적용을 위한 카본블랙-탄산염 혼합 매개체의 고온 반응 특성에 대한 연구
유준호, 강경태, 황준영, Yu. Jun Ho, Kang. Kyungtae, Hwang. Jun Young 대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 9 Pages
대한기계학회 大韓機械學會論文集. Transactions of the Korean society of mechanical engineers. B. B 2014, Vol.38 No.8 677-685 (9 pages)
직접 탄소 연료전지(DCFC)는 석탄을 비롯한 탄소계 연료의 화학에너지를 직접 전기로 변환시킨다. 특히, 약 10 년 전에 고체산화물 전해질을 사용하고 연료극 매개체로 용융탄산염을 사용하는 고성능 직접탄소 연료전지 시스템이 제안되었다. 이 시스템의 경우, 운전 온도가 증가할수록 고체산화물 전해질의 이온 전도도가 향상되고 전기화학 반응이 활성화되어 성능이 향상되나, 연료극 매개체의 화학적인 안정성 문제발생이 우려된다. 본 연구에서는 탄소-탄산염 혼합 매개체의 고온 안정성을 이해하기 위한 일련의 실험을 수행하였다.... -
Study of complex electrodeposited thin film with multi-layer graphene-coated metal nanoparticles
Young-Lae Cho, Jung-woo Lee, Chan Park, Young-il Song, Su-Jeong Suh 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 8 68-73 (6 pages)
We have demonstrated the production of thin films containing multilayer graphene-coated copper nanoparticles (MGCNs) by a commercial electrodeposition method. The MGCNs were produced by electrical wire explosion, an easily applied technique for creating hybrid metal nanoparticles. The nanoparticles had average diameters of 10?120 nm and quasispherical morphologies. We made a complex-electrodeposited copper thin film (CETF) with a thickness of 4.8 μm by adding 300 ppm MGCNs to the electrolyte... -
Waste coffee grounds-derived nanoporous carbon nanosheets for supercapacitors
Min Hong Park, Young Soo Yun, Se Youn Cho, Na Rae Kim, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 8 66-71 (6 pages)
The development of nanostructured functional materials derived from biomass and/or waste is of growing importance for creating sustainable energy-storage systems. In this study, nanoporous carbonaceous materials containing numerous heteroatoms were fabricated from waste coffee grounds using a top-down process via simple heating with KOH. The nanoporous carbon nanosheets exhibited notable material properties such as high specific surface area (1960.1 m2 g?1), numerous redox-active heteroatoms... -
Study on urea precursor effect on the electroactivities of nitrogen-doped graphene nanosheets electrodes for lithium cells
Ki-Yong Kim, Yongju Jung, Seok Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 5 40-46 (7 pages)
Nitrogen-atom doped graphene oxide was considered to prevent the dissolution of polysulfide and to guarantee the enhanced redox reaction of sulfur for good cycle performance of lithium sulfur cells. In this study, we used urea as a nitrogen source due to its low cost and easy preparation. To find the optimum urea content, we tested three different ratios of urea to graphene oxide. The morphology of the composites was examined by field emission scanning electron microscope. Functional groups and... -
Effects of electrochemical oxidation of carbon fibers on interfacial shear strength using a micro-bond method
Dong-Kyu Kim, Kay-Hyeok An, Yun Hyuk Bang, Lee-Ku Kwac, Sang-Yub Oh, Byung-Joo Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 4 32-39 (8 pages)
In this work, we studied the effects of electrochemical oxidation treatments of carbon fibers (CFs) on interfacial adhesion between CF and epoxy resin with various current densities. The surface morphologies and properties of the CFs before and after electrochemical-oxidation-treatment were characterized using field emission scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and single-fiber contact angle. The...
