The scope of this study was to investigate the effect of SnO₂ addition on the structure and catalytic performance of Co₃O₄ for N₂O decomposition. SnO₂-Co₃O₄ exhibits much better catalytic activity in the absence or presence of water vapor than Co₃O₄. Spectroscopic characterization of SnO₂-Co₃O₄ showed that this solid possesses higher degree of Co dispersion, smaller Co₃O₄ particles and larger S_BET due to the addition of SnO₂. In addition, an interaction between Sn and Co oxides formed at the SnO₂/Co₃O₄ interface promotes the electron donation ability of Co²⁺ and facilitates desorption of surface oxygen species, which might be considered as an important factor that contributes to the excellent catalytic performance of SnO₂-Co₃O₄ for N₂O decomposition.

这项研究的范围是调查SnO的效果₂添加对Co的结构和催化性能₃ ø ₄对于N ₂ ö分解。SnO ₂ -Co ₃ O ₄在不存在或存在水蒸气的情况下表现出比Co ₃ O ₄更好的催化活性。SnO ₂ -Co ₃ O _4的光谱表征表明，由于添加了SnO ₂，该固体具有较高的Co分散度，较小的Co ₃ O ₄颗粒和较大的S _BET。。另外，在SnO ₂ / Co ₃ O ₄界面处形成的Sn和Co氧化物之间的相互作用促进了Co ²⁺的电子给体能力，并促进了表面氧的解吸，这可能被认为是导致表面氧物种的重要因素。 SnO ₂ -Co ₃ O ₄对N ₂ O分解具有优异的催化性能。