本發明係有關於一種奈米碳纖的製造方法，包括：(A)將一液體進料、一氣體進料、和一去積碳劑混合形成一混合物，其中此液體進料包括一含有碳氫化合物、一觸媒前驅物、和一硫化物，此氣體進料包括氫氣；以及(B)將此混合物加熱至700至1600℃之間以進行反應。其中，碳氫化合物為製造奈米碳纖之碳源，而過度金屬化合物和硫化物分別為製造奈米碳纖的觸媒前驅物和助觸媒，去積碳劑為水或醇類。 The present invention relates to a method for manufacturing carbonaceous nanofibers. The method comprises the following steps: (a) a liquid feed, a carrier gas and a de-coke agent are added into a reactor thereby to form a mixture, wherein the liquid feed includes a hydrocarbon, a catalyst precursor and a sulfide, and the carrier gas includes hydrogen; and (b) the mixture is heated at a temperature ranges from 700 to 1600℃. In this method, the hydrocarbon is used as a carbon source, which forms the carbonaceous nanofibers, and the sulfide is used as an auxiliary catalyst. The method of the present invention is achieved through floated catalytic chemical vapor deposition. In other words, the present invention forms the carbonaceous nanofibers by supplying a liquid feed containing a carbon source, a catalyst precursor, and an auxiliary catalyst, a carrier gas, and a de-coke agent to a reactor maintained at a temperature of about 700 to 1600℃. Due to the participation of the de-coke agent in the reaction, the adhesion of by-products, such as amorphous carbon, on the inner perimeter wall surface of the reactor and on the surface of the catalyst particles is prevented. The by-product does not accumulate inside the reactor and the carbonaceous nanofibers therefore can exit the reactor continuously w
技術摘要-中文: 本發明係有關於一種奈米碳纖的製造方法，包括：(A)將一液體進料、一氣體進料、和一去積碳劑混合形成一混合物，其中此液體進料包括一含有碳氫化合物、一觸媒前驅物、和一硫化物，此氣體進料包括氫氣；以及(B)將此混合物加熱至700至1600℃之間以進行反應。其中，碳氫化合物為製造奈米碳纖之碳源，而過度金屬化合物和硫化物分別為製造奈米碳纖的觸媒前驅物和助觸媒，去積碳劑為水或醇類。 The present invention relates to a method for manufacturing carbonaceous nanofibers. The method comprises the following steps: (a) a liquid feed, a carrier gas and a de-coke agent are added into a reactor thereby to form a mixture, wherein the liquid feed includes a hydrocarbon, a catalyst precursor and a sulfide, and the carrier gas includes hydrogen; and (b) the mixture is heated at a temperature ranges from 700 to 1600℃. In this method, the hydrocarbon is used as a carbon source, which forms the carbonaceous nanofibers, and the sulfide is used as an auxiliary catalyst. The method of the present invention is achieved through floated catalytic chemical vapor deposition. In other words, the present invention forms the carbonaceous nanofibers by supplying a liquid feed containing a carbon source, a catalyst precursor, and an auxiliary catalyst, a carrier gas, and a de-coke agent to a reactor maintained at a temperature of about 700 to 1600℃. Due to the participation of the de-coke agent in the reaction, the adhesion of by-products, such as amorphous carbon, on the inner perimeter wall surface of the reactor and on the surface of the catalyst particles is prevented. The by-product does not accumulate inside the reactor and the carbonaceous nanofibers therefore can exit the reactor continuously w
A poly(acrylonitrile)(PAN) textile including plural PAN fibers is provided first. The diameter of the PAN fibers is from about 50 nm to about 500 nm. Then, a heat treatment of the PAN fiber textile is carried out to form a carbon fiber textile. The carbon fiber textile includes plural carbon fibers. The diameter of the carbon fibers is from about 50 nm to about 500 nm. Plural nano-size holes are located on a surface of the carbon fibers. The total surface area of the nano-size holes is about 85~95 % of total surface area of the carbon fibers. Finally, the carbon fiber textile is further fabricated to form the electrode of the supercapacitor.
技術摘要-英文: A poly(acrylonitrile)(PAN) textile including plural PAN fibers is provided first. The diameter of the PAN fibers is from about 50 nm to about 500 nm. Then, a heat treatment of the PAN fiber textile is carried out to form a carbon fiber textile. The carbon fiber textile includes plural carbon fibers. The diameter of the carbon fibers is from about 50 nm to about 500 nm. Plural nano-size holes are located on a surface of the carbon fibers. The total surface area of the nano-size holes is about 85~95 % of total surface area of the carbon fibers. Finally, the carbon fiber textile is further fabricated to form the electrode of the supercapacitor.
A poly(acrylonitrile)(PAN) textile including plural PAN fibers is provided first. The diameter of the PAN fibers is from about 50 nm to about 500 nm. Then, a heat treatment of the PAN fiber textile is carried out to form a carbon fiber textile. The carbon fiber textile includes plural carbon fibers. The diameter of the carbon fibers is from about 50 nm to about 500 nm. Plural nano-size holes are located on a surface of the carbon fibers. The total surface area of the nano-size holes is about 85~95 % of total surface area of the carbon fibers. Finally, the carbon fiber textile is further fabricated to form the electrode of the supercapacitor.
技術摘要-英文: A poly(acrylonitrile)(PAN) textile including plural PAN fibers is provided first. The diameter of the PAN fibers is from about 50 nm to about 500 nm. Then, a heat treatment of the PAN fiber textile is carried out to form a carbon fiber textile. The carbon fiber textile includes plural carbon fibers. The diameter of the carbon fibers is from about 50 nm to about 500 nm. Plural nano-size holes are located on a surface of the carbon fibers. The total surface area of the nano-size holes is about 85~95 % of total surface area of the carbon fibers. Finally, the carbon fiber textile is further fabricated to form the electrode of the supercapacitor.