文献类型：期刊文献

英文题名：Suspension-washcoat optimization for preparing copper-manganese oxide structured catalyst towards flue gas CO purification

作者：Zhang, Xuan[1];Liu, Jiaxin[2];Tian, Jinglei[3];Liu, Jinzhe[3];Yang, Xiong[1,4];Liu, Yingshu[1,4];Li, Jinjuan[5];Zhang, Chuanzhao[6];Li, Ziyi[1]

第一作者：Zhang, Xuan

通讯作者：Yang, X[1];Li, ZY[1]

机构：[1]Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China;[2]China Nucl Power Engn Co Ltd, Beijing 100142, Peoples R China;[3]HBIS Grp Co Ltd, Sustainable Dev Res Ctr, Shijiazhuang 050023, Hebei, Peoples R China;[4]Tibet Univ, Coll Sci, Key Lab Plateau Oxygen & Living Environm Tibet Aut, Lhasa 850000, Peoples R China;[5]Guizhou Univ, Coll Resources & Environm Engn, Key Lab Karst Georesources & Environm, Minist Educ, Guiyang 550025, Peoples R China;[6]Beijing Union Univ, Coll Biochem Engn, Beijing 100023, Peoples R China

第一机构：Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China

通讯机构：[1]corresponding author), Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing 100083, Peoples R China.

年份：2025

卷号：705

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：;EI(收录号：20244617366116);Scopus(收录号：2-s2.0-85208768116);WOS:【SCI-EXPANDED(收录号:WOS:001360047100001)】；

基金：The authors would like to express the gratitude to the Beijing Natural Science Foundation (No. L233015) , National Natural Science Founda-tion of China (No. 52370107) , Fundamental Research Funds for the Central Universities (Nos. FRF-EYIT-23-02, FRF-IDRYGD21-02) , Beijing Nova Program (No. 20240484685) , and National Key R & D Program of China (Nos. 2022YFC3005803, 2022YFC2403702, 2022YFC2403703) .

语种：英文

外文关键词：Structured catalyst; Copper-manganese oxides; Carbon monoxide; Washcoat; Suspension; Flue gas purification

摘要：Structured catalysts play significant role in nowaday environmental industry. The copper-manganese oxide (CuMn) is a low cost and efficient catalyst for CO purification from flue gas, for which a robust preparation regarding stabilized suspension and washcoat process is still lacked. This work addressed this challenge by constructing the catalyst suspension by introducing absorbent polymer (SAP), polyvinyl alcohol (PVA), and nano-silica sol (SiO2- NA). The effects of the dosage of SAP, PVA, and SiO2-NA on suspension properties including viscosity, water- retention capacity and stability were systematically studied. The combined effect of the three additives regarding electrostatic-sterical stability and regionalized coating is demonstrated to avoids the destruction of connection between SiO2-NA and Cu-Mn due to the thermal stress during the drying process. After calcination, SiO2-NA is efficiently utilized, evenly distributed and tightly bonded to Cu-Mn catalyst, rendering strongly- attached, crack-free and compact washcoated layer. The optimized structured catalyst shows appreciable balance of loading (up to 182 kg/m(3)) and strength (powder shedding rate <1 wt%) without blockage. The potential of practical application was verified by CO purification from realistic iron-ore sintering flue gas with catalytic efficiency of above 90 % for 240 h. These findings indicated a promising strategy to design Cu-Mn structured catalysts efficient for industrial use.