the most efficient catalyst that decomposes hydrogen peroxide using KI, FeCl3 and PbO2.
As an interesting contrast,
a similar increase in the rate of decomposition of hydrogen peroxide can be achieved using
an inorganic catalyst such as
manganese(IV) oxide
or
lead(lV) oxide.
The catalytic decomposition of hydrogen peroxide occurs when administered to wounds.
Catalase, an enzyme in the blood, catalyzes the reaction.
The decomposition reaction of hydrogen peroxide was found to be first-order,
as reported by most of the previous researchers. It was found that,
at an initial temperature of 67 °C, the decomposition of pure peroxide in dilute sulfuric acid had a rate constant of 0.0385 min–1.
A catalyst makes the decompostition reaction of hydrogen peroxide faster because
it provides an alternative pathway with a lower activation energy for the reaction to take.
When a catalyst is added,
an alternative pathway through which the reaction can form water and oxygen gas is introduced.
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