Influence of the surface active phase-support interaction on the electronic, thermal and catalytic performance of pyridinium hydrogen sulfate ([H–Pyr]⁺[HSO₄, PHS]⁻) ionic liquid immobilized by a wetness impregnation method on rice husk ash (RHA) and corundum (Al-NA) carriers has been investigated in the current work. For that purpose, both the developed supports and the corresponding catalysts (PHS/Al-NA and PHS/RHA) were characterized in details by means of analytical methods such as N₂ adsorption-desorption measurements, X-ray diffraction, X-ray photoelectron spectroscopy, spectroscopy in the ultraviolet and visible regions, infrared spectroscopy and thermogravimetric analysis. To compare the catalytic activity of PHS/Al-NA and PHS/RHA, a process of butyl acetate synthesis was applied as a test reaction. The physicochemical characterization revealed that the active phase-support interaction in the case of PHS/RHA catalyst is stronger than that between PHS phase and Al-NA. Based on this, the catalytic performance of PHS/RHA sample (expressed by substrate conversion degree) in the reaction of acetic acid esterification with butanol was found to be more pronounced with respect to that of Al-NA supported pyridinium hydrogen sulfate.

表面活性相-载体相互作用对湿法浸渍固定在稻壳灰（RHA）上的硫酸氢吡啶鎓（[H–Pyr] ⁺ [HSO ₄，PHS] ^-）离子液体的电子，热和催化性能的影响）和刚玉（Al-NA）载体已在当前工作中进行了研究。为此，已开发的载体和相应的催化剂（PHS / Al-NA和PHS / RHA）均通过诸如N ₂的分析方法进行了详细表征。吸附-解吸测量，X射线衍射，X射线光电子能谱，紫外和可见光区域的能谱，红外能谱和热重分析。为了比较PHS / Al-NA和PHS / RHA的催化活性，采用乙酸丁酯合成方法作为测试反应。理化特性表明，PHS / RHA催化剂的活性相-载体相互作用强于PHS相和Al-NA之间的相互作用。基于此，发现相对于Al-NA负载的吡啶鎓硫酸氢盐，PHS / RHA样品在乙酸酯化与丁醇的反应中的催化性能（由底物转化度表示）。