Catalytic oxidation of CO and hydrocarbons on SHS-prepared complex metal oxide catalysts

Tyurkin, Yu. V.; Luzhkova, E. N.; Pirogova, G. N.; Chesalov, L.A.

doi:10.1016/s0920-5861(96)00102-2

Cited by 13 publications

(5 citation statements)

References 3 publications

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“…Variations in the specific surface area and pore volume showed the same trend of Cu 0.54 Co 2.43 /Al 2 O 3 -A > Cu 1.68 Co 1.49 /Al 2 O 3 -A > Cu 1.02 Co 0.91 /Al 2 O 3 -A. Variation in the pore texture with the Cu/Co ratio can be explained by considering geometric effects [9][10][11]. Bimetallic catalysts usually comprise a low-activity metal (VIIIB) and a high-activity metal (IB).…”

Section: Effects Of Various Cu/co Ratios On Catalytic Activitymentioning

confidence: 68%

“…To increase the activity of the catalysts and maximize the advantages of the polyol process, bimetallic catalysts comprising IB (Cu, Ag, Au) and VIIIB (Co, Rh, Ir) metals were considered. Tyurkin et al [9] indicated that a mixture of metals is capable of forming mutual interactions with complex crystals (spinel-or perovskitetype). Sales et al [1], Bonet et al [3], and Shaheen and Ali [10] found that bimetallic catalysts had stronger catalytic activity and higher selectivity than monometallic catalysts.…”

Section: Introductionmentioning

confidence: 99%

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Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Tseng

Wey

et al. 2009

Materials Science and Engineering: B

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Section: Effects Of Various Cu/co Ratios On Catalytic Activitymentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Tseng

Wey

et al. 2009

Materials Science and Engineering: B

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“…The self-propagating high-temperature synthesis (SHS) method is highly regarded and respected in the fields of composite materials and synthetic polymers because of its simple procedure, low energy consumption, and high conversion rate. , Roy et al showed that catalysts prepared by the SHS method have excellent nanostructures and exhibit excellent performances. The SHS method also provides a new direction for SCR catalyst preparation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Both Powdered and Preformed MnO_x–CeO₂–Al₂O₃Catalysts by Self-Propagating High-Temperature Synthesis for the Selective Catalytic Reduction of NO_xwith NH₃

Wang

Tang

et al. 2018

ACS Omega

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MnO x –CeO 2 –Al 2 O 3 powdered and preformed catalysts were prepared through self-propagating high-temperature synthesis (SHS) and impregnation methods. Compared to the traditional impregnation method, the SHS method has a shorter catalyst preparation cycle and simpler preparation process. The characterization results showed that mixed crystals of cerium, aluminum, and manganese oxides were formed through the SHS method, the binding energy of Mn 4+ increased, and the active components were distributed uniformly. The MnO x –CeO 2 –Al 2 O 3 powdered catalyst had an extensive pore structure, with a Brunauer–Emmett–Teller surface area of approximately 136 m 2 /g, a pore volume of approximately 0.17 cm 3 /g, and an average pore diameter of approximately 5.1 nm. Furthermore, the MnO x –CeO 2 –Al 2 O 3 powdered catalyst achieved a NO x conversion higher than 80% at 100–250 °C. Coating liquids with identical metal-ion concentrations were prepared using the catalysts, and the preformed catalyst obtained through the SHS method had a higher loading capacity after one coating. The MnO x –CeO 2 –Al 2 O 3 preformed catalyst achieved a NO x conversion higher than 70% at 200–350 °C.

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“…7) has shown that addition of the manganese oxide affects the catalyst activity. Thus, the catalysts activity should be first of all related to the copper-manganese oxide phase [16,36,37]. Such a phase in the double oxide catalyst seems to be the CuMn 2 O 4 spinel.…”

Section: Discussionmentioning

confidence: 99%

Effect of MgF2 and Al2O3 supports on the structure and catalytic activity of copper–manganese oxide catalysts

et al. 2007

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Structure and catalytic activity of double copper-manganese oxide catalysts supported on MgF 2 and Al 2 O 3 have been studied. All samples were calcined at 400°C and those supported on Al 2 O 3 also at 550 and 950°C. The properties of surface species have been characterized by low temperature adsorption of nitrogen, XRD and TPR-H 2 . The catalytic activities have been tested in lowtemperature CO oxidation and in NO reduction by propene. The supported oxides react with each other during calcination to form CuMn 2 O 4 spinel. The spinel seems to be responsible for the catalytic activity of the double copper-manganese catalysts. The temperature of calcination changes the strength of interaction between the active phase and the supports influencing the catalytic activity.

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Catalytic oxidation of CO and hydrocarbons on SHS-prepared complex metal oxide catalysts

Cited by 13 publications

References 3 publications

Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Synthesis of Both Powdered and Preformed MnO_x–CeO₂–Al₂O₃Catalysts by Self-Propagating High-Temperature Synthesis for the Selective Catalytic Reduction of NO_xwith NH₃

Effect of MgF2 and Al2O3 supports on the structure and catalytic activity of copper–manganese oxide catalysts

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Catalytic oxidation of CO and hydrocarbons on SHS-prepared complex metal oxide catalysts

Cited by 13 publications

References 3 publications

Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Effects of the ratio of Cu/Co and metal precursors on the catalytic activity over Cu-Co/Al2O3 prepared using the polyol process

Synthesis of Both Powdered and Preformed MnOx–CeO2–Al2O3Catalysts by Self-Propagating High-Temperature Synthesis for the Selective Catalytic Reduction of NOxwith NH3

Effect of MgF2 and Al2O3 supports on the structure and catalytic activity of copper–manganese oxide catalysts

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Synthesis of Both Powdered and Preformed MnO_x–CeO₂–Al₂O₃Catalysts by Self-Propagating High-Temperature Synthesis for the Selective Catalytic Reduction of NO_xwith NH₃