三聚氰胺海绵基高效柔性脱硝催化材料的合成及性能研究

doi:10.11896/cldb.21010055

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Abstract Atwo-step hydrothermal method was applied to synthesize the MnCo nanoarray denitration catalyst on carbon foam substrate (MF) for the selective catalytic reduction of NO_x by NH₃. The effect of Co-doping on the low temperature performance of Mn-MF was also studied. The results show that Co-doping can significantly improve the low-temperature activity and selectivity of Mn-MF and the resistance of H₂O and SO₂. The Mn₂Co-MF catalyst has the best low-temperature performance and the denitration efficiency can reach more than 90% at 140—220 ℃. In addition, SEM, XRD, XPS, H₂-TPR, NH₃-TPD and other characterization techniques are applied to explore the relationship between the catalytic performance, redox performance and structure of Mn₂Co-MF catalyst. The results show that the introduction of Co can not only increase the specific surface area and pore volume of the catalyst, but also promote the enrichment of oxygen species on the surface of the Mn₂Co-MF catalyst, produce more acid sites, and improve the reducibility of the catalyst, thereby improving the low temperature activity.

Key words： carbon composite materials three-dimensional materials selective catalytic reduction flexible catalysts

Published: 30 November 2021

CLC number:

X511

Fund:National Key R & D Program of China(2017YFC0210303) and National Natural Science Foundation of China Joint Fund Key Project(U20A20130).

About author:: Chengzhi Wang, obtained his master's degree in Engineering from the Shihezi University in 2018, is now a doctoral candidate in University of Science and Techno-logy Beijing. Under the guidance of professor Xiaolong Tang, he is engaged in the research and development of new environmental functional materials and industrial smoke pollutant emission reduction technology. He has published 7 journal papers in domestic and foreign academic journals, and included 6 in SCI.
Xiaolong Tang, he is currently a professor and doctoral supervisor of University of Science and Technology Beijing, vice president of Science and Technology Research Institute, New Century Outstanding talent of Ministry of Education. Mainly engaged in industrial flue gas pollution control and collaborative purification, special field collaborative catalytic purification, organic pollutant catalytic purification, environmental functional materials and regeneration and other key technologies and equipment research and development. He has presided over more than 20 provincial-level and minister-level projects, such as the atmospheric key research and development program for multi-pollutant medium-low temperature collaborative catalytic purification technology and demonstration, the National Key Research and Development Program for Science and Technology, the National Natural Science Foundation of China, and the Beijing “Capital Blue Sky Cultivation Program”. More than 260 journal papers have been published in domestic and foreign academic journals. Authorized 25 national invention patents, editor-in-chief and publisher of 6 books. He has won more than 10 ho-norary awards, such as New Century Outstanding Talents of the Ministry of Education, first prize of National Teaching Achievement, second prize of Science and Technology of China Non-ferrous Metal Industry, Youth Science and Technology Award of China Society of Environmental Sciences, etc.

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	WANG Chengzhi
	GAO Fengyu
	YU Qingjun
	YI Honghong
	NI Shuquan
	TANG Xiaolong

Cite this article:

WANG Chengzhi,GAO Fengyu,YU Qingjun, et al. Study on Synthesis and Performance of Melamine Sponge-based High-efficiency Flexible Denitration Catalytic Material[J]. Materials Reports, 2021, 35(21): 21079-21084.

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http://www.mater-rep.com/EN/10.11896/cldb.21010055 OR http://www.mater-rep.com/EN/Y2021/V35/I21/21079

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