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자료유형
학술저널
저자정보
Park, Young-Sook (Dept. of Chemical Eng., Hongik University) Choi, Jong-Ho (Fuel Cell Research Center, KIST) Han, Jong-Hee (Fuel Cell Research Center, KIST) Lim, Tae-Hoon (Fuel Cell Research Center, KIST) Beak, Young-Soon (Korea Gas Corporation) Ju, Jeh-Beck (Dept. of Chemical Eng., Hongik University) Shon, Tae-Won (Dept. of Chemical Eng., Hongik University) Lee, Joong-Kee (Eco-Nano Reach Center, Korea Institute of Science and Technology)
저널정보
한국탄소학회 Carbon science Carbon science 제6권 제1호
발행연도
2005.1
수록면
41 - 46 (6page)

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Plasma carbon blacks of 20~30 nm diameter were synthesized by direct decomposition of natural gas using a hybrid plasma torch system with 50 kW direct current and 4 MHz of radio frequency. The insulating rector which inside diameter of 400 mm and length of 1500 mm, respectively was kept at 300~$400^{\circ}C$ during the preparation. The ultimate analysis of plasma carbon blacks reveals that the raw plasma carbon blacks contains a large quantity of volatile which is mainly consist of hydrogen. Therefore devolatilization of raw plasma carbon blacks were carried out at $900^{\circ}C$ for one hour under nitrogen atmosphere. The devolatilization leads to the decrease in electrical resistivity and surface oxygen functional groups of plasma carbon black significantly. In order to investigate the plasma carbon as a catalyst support, devolatilized plasma black at $900^{\circ}C$ (DPB) supported PtAu catalyst was synthesized by sodium boronhydride reduction method. Electrochemical measurements and direct formic acid fuel cell test indicated that catalytic activity of DPB supported PtAu catalyst for formic acid oxidation was similar to that of Vulcan XC-72 of commercial carbon black supported one.

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