He initially experimented with Grove's use of activated platinum gauze with a sulphuric acid electrolyte, but quickly moved on to use activated nickel electrodes with an aqueous potassium hydroxide electrolyte.
2.
The combustion of ammonia in air is very difficult in the absence of a catalyst ( such as platinum gauze or warm chromium ( III ) oxide ), because the temperature of the flame is usually lower than the ignition temperature of the ammonia air mixture.
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