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Honeycomb cordierite carrier and preparation method thereof
The invention discloses a honeycomb cordierite carrier and a preparation method thereof. The honeycomb cordierite carrier prepared by the method comprises a honeycomb cordierite matrix and an aluminum oxide coating, surface particles of the aluminum oxide coating are worm-shaped, the length is about 80-200nm, the diameter is about 20-50nm, and the worm-shaped particles are stacked to form 10-100nm pores. On the basis of the weight of the carrier, the content of the aluminum oxide coating is 8wt%-25wt%. The preparation method of the honeycomb-shaped cordierite carrier comprises the following steps: (1) coating the surface of honeycomb-shaped cordierite with aluminum sol, and drying and roasting the coated material to prepare cordierite containing an aluminum oxide coating; and (2) immersing the cordierite containing the aluminum oxide coating in the step (1) into an epoxypropane solution for sealed hydrothermal treatment, and drying and roasting the material after the hydrothermal treatment to obtain the honeycomb cordierite carrier. Wormlike particles are arranged on the surface of the honeycomb cordierite carrier coating, the formed stacked pore channel structure is appropriate, and the honeycomb cordierite carrier coating has wide application prospects in reactions such as flue gas denitration and catalytic combustion.
本发明公开了一种蜂窝状堇青石载体及其制备方法。本发明方法制备的蜂窝状堇青石载体，包括蜂窝状堇青石基体和氧化铝涂层，氧化铝涂层表面粒子呈蠕虫状，长度约80‑200nm，直径约20‑50nm，蠕虫状粒子堆积形成10‑100nm孔道。以载体重量为基准，氧化铝涂层含量为8wt%‑25wt%。本发明的蜂窝状堇青石载体的制备方法，包括：（1）将铝溶胶涂敷到蜂窝状堇青石表面，涂敷后的物料经干燥、焙烧，制得含氧化铝涂层堇青石；（2）将步骤（1）含氧化铝涂层堇青石浸入环氧丙烷溶液中密封水热处理，水热处理后物料经干燥、焙烧，制得蜂窝状堇青石载体。本发明的蜂窝状堇青石载体涂层表面具有蠕虫状粒子，形成的堆积孔道结构适宜，在烟气脱硝、催化燃烧等反应中有着广阔应用前景。
Honeycomb cordierite carrier and preparation method thereof
The invention discloses a honeycomb cordierite carrier and a preparation method thereof. The honeycomb cordierite carrier prepared by the method comprises a honeycomb cordierite matrix and an aluminum oxide coating, surface particles of the aluminum oxide coating are worm-shaped, the length is about 80-200nm, the diameter is about 20-50nm, and the worm-shaped particles are stacked to form 10-100nm pores. On the basis of the weight of the carrier, the content of the aluminum oxide coating is 8wt%-25wt%. The preparation method of the honeycomb-shaped cordierite carrier comprises the following steps: (1) coating the surface of honeycomb-shaped cordierite with aluminum sol, and drying and roasting the coated material to prepare cordierite containing an aluminum oxide coating; and (2) immersing the cordierite containing the aluminum oxide coating in the step (1) into an epoxypropane solution for sealed hydrothermal treatment, and drying and roasting the material after the hydrothermal treatment to obtain the honeycomb cordierite carrier. Wormlike particles are arranged on the surface of the honeycomb cordierite carrier coating, the formed stacked pore channel structure is appropriate, and the honeycomb cordierite carrier coating has wide application prospects in reactions such as flue gas denitration and catalytic combustion.
本发明公开了一种蜂窝状堇青石载体及其制备方法。本发明方法制备的蜂窝状堇青石载体，包括蜂窝状堇青石基体和氧化铝涂层，氧化铝涂层表面粒子呈蠕虫状，长度约80‑200nm，直径约20‑50nm，蠕虫状粒子堆积形成10‑100nm孔道。以载体重量为基准，氧化铝涂层含量为8wt%‑25wt%。本发明的蜂窝状堇青石载体的制备方法，包括：（1）将铝溶胶涂敷到蜂窝状堇青石表面，涂敷后的物料经干燥、焙烧，制得含氧化铝涂层堇青石；（2）将步骤（1）含氧化铝涂层堇青石浸入环氧丙烷溶液中密封水热处理，水热处理后物料经干燥、焙烧，制得蜂窝状堇青石载体。本发明的蜂窝状堇青石载体涂层表面具有蠕虫状粒子，形成的堆积孔道结构适宜，在烟气脱硝、催化燃烧等反应中有着广阔应用前景。
Honeycomb cordierite carrier and preparation method thereof
一种蜂窝状堇青石载体及其制备方法
WANG SHIYU (author) / JI HONGHAI (author) / LING FENGXIANG (author) / WANG SHAOJUN (author) / ZHANG HUICHENG (author)
2023-11-14
Patent
Electronic Resource
Chinese
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