“…For comparison, AM15, which was prepared by impregnation of manganese on Al 2 O 3 , shows typical peaks of Mn 2 O 3 . Over the NAM10 with both Ni and Mn, besides the spinel peaks of Al 2 O 3 and NiAl 2 O 4 , the peaks of ilmenite-type NiMnO 3 [10], instead of Mn 2 O 3 in AM15, were emerged at 36.6 , 33.7 and 24.6 . To confirm the formation of NiMnO 3 and find the reducibility of catalysts, TPR was conducted over these catalysts.…”