Shape-controlled fabrication of the porous Co₃O₄nanoflower clusters for efficient catalytic oxidation of gaseous toluene

Co3O4nanoflower clusters were fabricated by a simple low-temperature hydrothermal method. The properties of Co3O4nanomaterials were comprehensively determined by combining different analytical techniques. The self-assembled Co3O4nanoflower clusters had good crystallinity and porous structure. They were utilized as the catalyst for the degradation of gaseous toluene. The experimental results showed that the catalytic activity of the as-prepared Co3O4nanoflower clusters was much superior to the Co3O4blocks under the same reaction conditions.