Katalyst yo kubora kwa amoniya ni ubwoko bwa katalyst yo gukora ibintu by'ibanga, ishingiye kuri nikeli nk'ikintu gikora, alumina ikaba ari yo itwara ibintu by'ingenzi. Ikoreshwa cyane cyane ku ruganda rwa amoniya rw'inyongera ruhindura imiterere ya hydrocarbon na amoniya.