Whether the temperature of the electrolyte for hydrogen production by electrolysis of water is higher or room temperature?

Of course, a higher temperature is better, 90 degrees is no problem.

High temperature, low solution resistance, good activity, power saving and high efficiency.

Electrolyzed water does not have high requirements for the anode. If salt water is electrolyzed, too high a temperature will cause the anode to corrode too quickly.

In fact, to put it simply, it is like this. For high school experiments, the temperature can be any, but the higher the temperature, the faster the speed.

But specifically, if it is used in industrial production, it is a patent issue, so please consult professionals.