Acrolein is a widely used intermediate of synthesis for value-added compounds in a number of domains of application. This work reports on the sustainable synthesis of acrolein by oxidative coupling of bio-alcohols, which constitutes a very promising alternative to fossil fuel-based production. The synthesis is performed in two sequential reactors, using an iron molybdate catalyst for oxidation and then a magnesium aluminate spinel where magnesium is partly or totally substituted by transition metals (Fe, Zn, Co, Cu, Mn) as a catalyst for cross-aldolization. The acid-base properties of the latter catalysts were determined using SO₂ and NH₃ adsorption microcalorimetry. Adsorption microcalorimetry was also used to study the adsorption properties of the reactants, with formaldehyde, acetaldehyde and propionaldehyde as probe molecules, and was complemented by a FT-IR investigation of reactant adsorption in order to better understand the mechanisms of adsorption and reaction. Acrolein production was found to be correlated to the ionic radius of the transition metals used in the catalysts, indicating that electronic effects are likely a factor influencing the acrolein production.

丙烯醛是在许多应用领域中用于增值化合物的合成的广泛使用的中间体。这项工作报告了通过生物醇的氧化偶联可持续合成丙烯醛的方法，这是基于化石燃料的生产的非常有希望的替代方法。合成在两个连续的反应器中进行，使用钼酸铁催化剂进行氧化，然后使用铝酸镁尖晶石，其中镁部分或全部被过渡金属（Fe，Zn，Co，Cu，Mn）取代，作为交叉铝醛化的催化剂。使用SO ₂和NH ₃确定了后一种催化剂的酸碱性质吸附量热法。吸附微量量热法还用于研究反应物的吸附性能，以甲醛，乙醛和丙醛为探针分子，并辅以FT-IR研究反应物的吸附，以更好地了解吸附和反应的机理。发现丙烯醛的产生与催化剂中使用的过渡金属的离子半径相关，表明电子效应可能是影响丙烯醛产生的因素。