添加磷对 W-V-Nb 复合氧化物晶体结构及催化选择性氧化丙烯醛的影响

IF 2.3 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemphyschem Pub Date : 2024-10-27 DOI:10.1002/cphc.202400562

Kaori Omata, Tomonori Nambu

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引用次数: 0

摘要

研究了水热合成过程中添加磷后 W-V-Nb 复合氧化物晶体结构的变化。讨论了添加磷的 W-V-Nb 复合氧化物催化剂的组成单元和晶体结构对选择性氧化丙烯醛的活性和选择性的影响。在水热合成过程中添加磷可促进正方体和三方体 W-V-Nb 复合氧化物的形成。与只有{M6O21}五边形单元和 7 元环的低结晶催化剂相比，正方体和三方 W-V-Nb 复合氧化物催化剂在丙烯醛氧化过程中具有更高的丙烯酸选择性。

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Effect of Adding Phosphorus on Crystal Structure of W-V-Nb Complex Oxide and Catalytic Selective Oxidation of Acrolein.

The changes in the crystal structure of the W-V-Nb complex oxide with phosphorus addition to the hydrothermal synthesis process are investigated. The effect of the constituent units and crystal structure of phosphorus-added W-V-Nb complex oxide catalysts on the activity and selectivity for selective oxidation of acrolein is discussed. Phosphorus addition to the hydrothermal synthesis process promotes the formation of orthorhombic and trigonal W-V-Nb complex oxides. Orthorhombic and trigonal W-V-Nb complex oxide catalysts give higher acrylic acid selectivity in acrolein oxidation compared to poorly crystalline catalysts that only have {M₆O₂₁} pentagonal units and 7-membered rings.

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来源期刊

Chemphyschem 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

3.40%

发文量

425

审稿时长

1.1 months

期刊介绍： ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.