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a series of mn-promoted baal₂o₄ catalysts were developed for catalytic soot combustion. these catalysts were characterized using xrd, bet, h₂-tpr, o₂-tpd, and in-situ drifts. the results showed that an optimized combustion catalyst should accommodate barium and manganese with proper balance to promote soot combustion. a synergistic mechanism was suggested to explain the synergistic effect of manganese and barium: no was trapped mainly as nitrites by barium, while the generated nitrites further transformed to nitrates facilitated by manganese, which finally oxidized soot into co₂.

该文章中材料表征采用的是美国麦克仪器asap 2460

详情可参考下面链接：

http://www.sciencedirect.com/science/article/pii/s1566736715300078