Functional structure precursor and functional structure

A functional structure precursor comprising:

• supports each having a porous structure and including a zeolite-type compound;
• and
• at least one functional material precursor present in the supports and including a metal element (M), wherein
• each of the supports has channels communicating with one another,
• the functional material precursor is present at least in the channel of each of the supports, and
• the existence ratio P of the metal element (M) forming a coordination structure of four-coordination number is 0.75 or less, the existence ratio P being calculated by substituting into formula (1) value (a) representing a peak intensity of a metal element forming the coordination structure of four-coordination number (a metal element being in the functional structure precursor and having a spectral pattern corresponding to metallosilicate) and value (b) representing a peak intensity of a metal element forming a coordination structure of six-coordination number (a metal element being in the functional structure precursor and having a spectral pattern corresponding to a metal oxide before being reduced to metal), based on an X-ray absorption near edge structure (XANES) spectrum determined from an absorption edge of the metal in the functional structure precursor measured by X-ray absorption fine structure (XAFS) measurement.
• P=(a)/(a+b) (1)

A functional structure precursor comprising:

• supports each having a porous structure and including a zeolite-type compound;
• and
• at least one functional material precursor present in the supports and including a metal element (M), wherein
• each of the supports has channels communicating with one another,
• the functional material precursor is present at least in the channel of each of the supports, and
• the existence ratio P of the metal element (M) forming a coordination structure of four-coordination number is 0 or more and 0.10 or less, the existence ratio P being calculated by substituting into formula (1) value (a) representing a peak intensity of a metal element forming the coordination structure of four-coordination number (a metal element being in the functional structure precursor and having a spectral pattern corresponding to metallosilicate) and value (b) representing a peak intensity of a metal element forming a coordination structure of six-coordination number (a metal element being in the functional structure precursor and having a spectral pattern corresponding to a metal oxide before being reduced to metal), based on an X-ray absorption near edge structure (XANES) spectrum determined from an absorption edge of the metal in the functional structure precursor measured by X-ray absorption fine structure (XAFS) measurement.
• P=(a)/(a+b) (1)