Tandem catalyst for synthesizing methyl acetate from carbon dioxide, method for preparing same, and method for preparing methyl acetate using same

A method for preparing a tandem catalyst for synthesizing methyl acetate from carbon dioxide, the method comprising:

• a first step of preparing nano-ferrierite (N-FER) zeolite by hydrothermally synthesizing a first precursor solution containing a first silica precursor, an alumina precursor and a first organic template agent and then calcining;
• a second step of preparing a composite metal oxide core-silica shell by adding a second silica precursor solution to a second precursor solution containing a metal precursor and a second organic template agent and then calcining;
• and
• a third step of tandem-arranging the nano-ferrierite (N-FER) zeolite and the composite metal oxide core-silica shell.

A method for preparing methyl acetate from carbon dioxide, the method comprising:

• arranging a tandem catalyst inside a reactor, the tandem catalyst comprising:
• a first catalyst including nano-ferrierite (N-FER) zeolite;
• and
• a second catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core;
• reducing the tandem catalyst by heating the inside of the reactor;
• and
• performing a reaction by injecting gas containing carbon dioxide and hydrogen into the reactor, so that methyl acetate is synthesized from carbon dioxide.