活性组分掺杂对低温锰基催化剂脱硝性能的影响<sup>*</sup>

doi:10.11896/j.issn.1005-023X.2017.014.008

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Abstract Single manganese salt active component was modified by doping Ce and mixing manganese salts, and the mixing method with step-by-step was used to prepare a series of catalysts. The activity testing of catalysts presented that mixing manganese salts and doping Ce could both improve the activity of manganese base catalysts at low temperature, and the former′s effect was better than the latter. It was found through comparing that mechanical strength of catalyst was greatly increased by doping of active component. And BET results showed that the surface texture of manganese based catalyst with being doped and modified was greatly improved. XRD results of catalysts indicated that the active components of manganese base catalyst calcined at 500 ℃ existed in the form of amorphous state. Through analyzing NH₃-TPD and H₂-TPR of modified catalysts, compared to Ce doping into single manganese salt, surface acid amount and redox properties of catalyst was more significantly improved by the doping form of mixing manganese salts.

Key words： waste gas treatment dope manganese based catalyst low-temperature catalytic denitration selective catalytic reduction

Published: 25 July 2017 Online: 2018-05-04

CLC number:

X511

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	Articles by authors
	MENG Liubang
	FANG Jingrui
	GUAN Xuemao

Cite this article:

MENG Liubang,FANG Jingrui,GUAN Xuemao. Effect of Active Component Doping on the Denitration Properties of Manganese Based Catalyst at Low Temperature[J]. Materials Reports, 2017, 31(14): 35-39.

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https://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2017.014.008 OR https://www.mater-rep.com/EN/Y2017/V31/I14/35

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