Abstract:
본 발명은 기공의 직경이 11 내지 35nm, 비표면적이 700m 2 /g 이상이고, 헤테로 원자를 포함하는 헤테로 원자 함유 메조포러스 탄소를 제공한다. 또한 본 발명은 탄소 전구체, 헤테로원자를 포함하는 전구체 및 실리카 입자를 혼합하여 탄소 전구체 혼합물을 제조하는 단계; 상기 탄소 전구체 혼합물을 건조하고 탄화시켜 실리카-탄소 복합체를 제조하는 단계; 및 상기 실리카-탄소 복합체로부터 실리카를 제거하는 단계를 포함하는 것을 특징으로 하는 헤테로원자 함유 메조포러스 탄소의 제조방법을 제공한다.
Abstract:
PURPOSE: A negative electrode active material, a cathode including thereof, a lithium battery using thereof, and a manufacturing method of the lithium battery are provided to improve the electric capacity per a unit mass of the active material. CONSTITUTION: A negative electrode active material contains a porous transition metal oxide which is selected from the group consisting of Mo, Ti, V and W. The porous transition metal oxide has the pore diameter of 2~50 nano meters. The pores of the porous transition metal oxide are interlinked to form a channel, and are regularly arranged. The specific surface area of the porous transition metal oxide is 50~250 square meters per gram.
Abstract:
A composite support, a method for manufacturing the composite support, an electrode catalyst including the same, a membrane electrode assembly including the electrode catalyst, and a fuel cell are disclosed. The composite support includes an orderd mesoporous carbon including mesopore having the average diameter of 2-8 nm and silicon carbide combined with the orderd mesoporous carbon. [Reference numerals] (AA) Contact with carbon-precursor-containing mixture (25);(BB) Heat treat at 1300°C-1500°C;(CC) Remove rules mesoporous silica template (20)
Abstract:
PURPOSE: Mesoporous carbon, a manufacturing method thereof, and a fuel cell using the same are provided to control the size of the mesoporus carbon minutely and variously without adjusting size of a silica colloid nano particle separately. CONSTITUTION: A manufacturing method of mesoporus carbon containing a hetero atom includes the following steps of: manufacturing a carbon precursor mixture(11) by mixing a precursor and a silica particle including a carbon precursor and a hetero atom; manufacturing a silica-carbon mixture by carbonizing and drying the carbon precursor mixture; and removing the silica from the silica-carbon mixture.
Abstract:
PURPOSE: An ordered mesoporous carbon composite catalyst, a method for manufacturing the same, and a fuel cell including the same are provided to manufacture the fuel cell having improved oxygen reduction reaction by improving activity of the catalyst to oxygen reduction. CONSTITUTION: An ordered mesoporous carbon composite catalyst comprises ordered mesoporous carbon, a metal particle contained in the ordered mesoporous carbon, and one component selected from nitrogen or sulfur. The metal particle is selected from ruthenium, palladium, iridium, iron, cobalt, molybdenum, and nickel. The content of the metal particle is 0.05-0.45 parts by weight based on 1 parts by weight of the ordered mesoporous carbon.