Catalyst having enhanced conversion and selectivity for manufacturing olefin, and manufacturing method therof

A catalyst for producing an olefin by direct dehydrogenation, the catalyst comprising:

• a support comprising alumina and an auxiliary support component;
• and a main catalyst comprising an active metal oxide supported on the support;
• and the catalyst comprising 0.01 wt % or more and less than 1 wt % of a co-catalyst comprising an oxide of an alkali metal and a Group 6B transition metal,
• wherein the catalyst is configured to produce an olefin by direct dehydrogenation
• wherein the alkali metal is sodium, and
• wherein the Group 6B transition metal is tungsten.