Earl Colby Pottinger wrote:
Does anyone know on where I can get useful rate of reaction information on
using copper as a catalyst to decompose hydrogen peroxide is it is heated up
first. I know that it did not work out for John's design but I have seen
warnings that imply that copper can cause runaway decomposion of H2O2.

AIUI, copper rapidly corrodes in H2O2, unlike silver.
I did wonder about using a section of thick copper pipe to feed a catalyst
bed.