Method for deposition of noble metal nanoparticles on catalysts to promote same, and the compositions so produced

A method for producing a catalyst comprising:

• depositing ruthenium metal nanoparticles onto first support surfaces using chemical vapor deposition of a ruthenium metal precursor to produce a first effluent;
• depositing ruthenium metal nanoparticles onto a first precursor catalyst using chemical vapor deposition of the ruthenium metal precursor to produce a second effluent, the first precursor catalyst including first active metal surfaces and second support surfaces;
• obtaining an Fourier Transform Infrared (FTIR) pattern of the first effluent and the second effluent for temperatures between 100° C. and 280° C.;
• and
• determining a preferential temperature range that extends between a first temperature and a second temperature, the first temperature corresponding to a temperature at which decomposition of the ruthenium metal precursor is detected in the second effluent, the second temperature corresponding to a temperature at which decomposition of the ruthenium metal precursor is detected in the first effluent,
• wherein the chemical vapor deposition of the ruthenium metal precursor in the preferential temperature range preferentially deposits ruthenium metal nanoparticles upon the first active metal surfaces and minimally deposits ruthenium metal nanoparticles upon the second support surfaces of the first precursor catalyst.