What happens to those "degraded" catalysts? I guess you do have to remove them and dispose of them somehow? And you must have a lot of them, since you only use the H2 from starch and all the rest is "catalyst", as you seem to suggest in your introductory blurb.

In short, saying that "the only output is H2O2" is... weird. You may prefer not to call them outputs, but what are the waste products that are produced, how much of them, and what happens to them?