A　cobalt-based　metal-organic　framework　was　used　as　a　precursor　to　synthesize　Co3O4　catalysts　exhibiting　a　hexagonal　layered　morphology　by　calcination　at　varying　temperatures.　Various　characterization　techniques,　such　as　XRD,　SEM,　Raman,　H-2-TPR,　O-2-TPD　and　N-2　adsorption-desorption,　were　used　to　study　the　effects　of　calcination　temperature　on　the　grain　size,　surface　area,　and　pore　volume　of　the　catalysts.　The　Co3O4　catalyst　obtained　by　calcination　at　350　degrees　C　(Co3O4-350)　exhibited　the　highest　catalytic　activity　for　the　total　oxidation　of　propane.　Furthermore,　the　small　grain　size　and　layered　structure　of　Co3O4-350　allowed　it　to　possess　a　high　specific　surface　area,　a　highly　exposed　{112}　facets,　and　abundant　oxygen　defects　that　facilitated　a　favorable　low-temperature　reducibility　and　oxygen　mobility,　thereby　improving　catalytic　activity.　This　research　offers　a　simple　strategy　for　synthesis　of　Co3O4　with　layered　structure,　highly　exposed　{112}　facets　and　rich　oxygen　defects.　(C)　2021　The　Society　of　Powder　Technology　Japan.　Published　by　Elsevier　BV　and　The　Society　of　Powder　Technology　Japan.　All　rights　reserved.