HNCO adsorption monitored by FT-IR spectroscopy was performed over a wide range of oxides from various acid-base and redox properties: SiO₂, Al₂O₃, TiO₂, ZrO₂, CeO₂, CeO₂-ZrO₂, WO₃/CeO₂-ZrO₂. HNCO adsorbed dissociatively in the whole studied samples. A correlation with pyridine ν_8a wavenumbers revealed that HNCO dissociation mainly involved weak Lewis acid sites (LAS) location. The significant isocyanate adsorption capacity of titania and zirconia was evidenced. HNCO hydrolysis reaction was also investigated. Among the various studied samples, CeO₂-ZrO₂ and WO₃/CeO₂-ZrO₂ presented the higher HNCO hydrolysis rate, with ammonia formation from room temperature. For all studied samples, NCO groups were evidenced as intermediate species of HNCO hydrolysis.

通过FT-IR光谱监测的HNCO吸附是针对各种酸碱和氧化还原性质的氧化物进行的：SiO ₂，Al ₂ O ₃，TiO ₂，ZrO ₂，CeO ₂，CeO ₂ -ZrO ₂，WO ₃ / CeO ₂ -ZrO ₂。HNCO在整个研究样品中解离吸附。用吡啶ν的相关性_图8a波数表明，HNCO的解离主要涉及弱的路易斯酸位点（LAS）位置。证明了二氧化钛和氧化锆具有显着的异氰酸酯吸附能力。还研究了HNCO水解反应。在各种研究样品中，CeO ₂ -ZrO ₂和WO ₃ / CeO ₂ -ZrO ₂表现出较高的HNCO水解速率，并且在室温下会形成氨。对于所有研究的样品，NCO基团被证明是HNCO水解的中间物种。