Honeycomb structure

A honeycomb structure, comprising:

• a honeycomb structure body including a porous partition wall having a large number of pores, the honeycomb structure body including a plurality of cells defined by the partition wall and serving as a through channel of fluid;
• and
• a plugging portion to alternately plug open end parts of the plurality of cells on one side as an inflow side of the exhaust gas and open end parts on the other side as an outflow side of the exhaust gas, wherein
• the plurality of cells includes inflow cells that are open at the open end parts on the inflow side and outflow cells that are open at the open end parts on the outflow side,
• the partition wall has porosity of 70% or less,
• the partition wall is loaded, on the side of the outflow cells, with an oxidation catalyst made of a transition metal oxide to oxidize NO gas or an oxidation catalyst made of a transition metal oxide loaded at CeO2 to oxidize NO gas,
• the oxidation catalyst has a particle diameter of more than 1 μm and less than 50.0 μm, and
• the loading amount of the oxidation catalyst is 5.0 g/L or more and 50 g/L or less.