Comparison of the catalytic power of various catalysts on the decomposition of Hydrogen Peroxide
    (from Tinoco, Sauer, Wang and Puglisi, Physical Chemistry, 4 ed. Prentice Hall)

 

Catalyst Rate
 -d[H2O2]/dt (M-1s-1)		 Ea
(kJ/mol)
None 10-8 71
HBr 10-4 50
Fe2+/ Fe3+ 10-3 42
Hemoglobin or hematin 10-1 -
Fe(OH)2TETA+ 103 29
Catalase 107 8

 

The rate is calculated for 1M of H2O2 and 1 M catalyst (or catalyst active sites) so a fair comparison can be made. 

The structure of the active site analog Fe(OH)2TETA+ is
 

(where TETA is triethylenetetramine, tetradentate ligand -  N,N'-bis(2-aminoethyl)-1,2-ethanediamine: H2N-CH2-CH2-NH-CH2-CH2-NH-CH2-CH2-NH2).