Supported Catalyst for Synthesizing Multi-Wall Carbon Nanotubes and Method for Preparing the Same

A supported catalyst for synthesizing multi-wall carbon nanotubes including a supporting body and a metal catalyst comprising Fe, Co, Mn, Mo, and V supported on the supporting body, wherein the metal catalyst includes Fe, Co, Mn, Mo, and V in a mole ratio according to Equation (3) below:

• (Fe,Co,Mn)x(Mo, V)y(Al2O3,MgO,SiO2)z (3),
• wherein x, y, and z mole ratios and 1≦x≦10, 0≦y≦5, and 1≦z≦20;
• wherein (Fe, Co, Mn) includes at least one catalyst selected from Fe, Co, and Mn;
• (Mo, V) includes at least one catalyst selected from Mo and V;
• and (Al2O3, MgO, SiO2) includes at least one support body material selected from Al2O3, MgO, and SiO2.

A method of preparing a supported catalyst for synthesizing multi-walled carbon nanotubes including the steps of:

• preparing an aqueous solution of metal catalyst by dissolving metal catalysts comprising Fe, Co, and Mn in a solvent;
• preparing an aqueous solution of a supporting body material by dissolving aluminum oxide, magnesium oxide, silicon dioxide or a combination thereof in a solvent;
• mixing said aqueous solution of the metal catalyst and said aqueous solution of said supporting body material, and
• heating the mixture at a temperature of about 100 to about 800° C. under normal atmospheric pressure for about 10 to about 40 min.

A method of preparing a supported catalyst for synthesizing multi-walled carbon nanotubes including the steps of:

• preparing an aqueous solution of metal catalyst by dissolving metal catalysts comprising Fe, Co, Mn, and Mo in a solvent;
• preparing an aqueous solution of a supporting body material by dissolving aluminum oxide, magnesium oxide, silicon dioxide or a combination thereof in a solvent;
• mixing said aqueous solution of the metal catalyst and said aqueous solution of said supporting body material, and
• heating the mixture at a temperature of about 100 to about 800° C. under normal atmospheric pressure for about 10 to about 40 min.

A method of preparing a supported catalyst for synthesizing multi-walled carbon nanotubes including the steps of:

• preparing an aqueous solution of metal catalyst by dissolving metal catalysts comprising Fe, Co, Mn, Mo, and V in a solvent;
• preparing an aqueous solution of a supporting body material by dissolving aluminum oxide, magnesium oxide, silicon dioxide or a combination thereof in a solvent;
• mixing said aqueous solution of the metal catalyst and said aqueous solution of said supporting body material, and
• heating the mixture at a temperature of about 100 to about 800° C. under normal atmospheric pressure for about 10 to about 40 min.