Cobalt (II,III) oxide is an inorganic compound with the formula Co 3 O 4. It is one of two well characterized cobalt oxides. It is a black antiferromagnetic solid. As a mixed valence compound, its formula is sometimes written as Co II Co III2 O 4 and sometimes as CoO•Co 2 O 3. [4]

四氧化三钴，是一种无机化合物，化学式Co3O4，与四氧化三铁类似，可以近似的看作氧化钴（CoO）与氧化高钴（Co2O3）形成的化合物，为黑色或灰黑色粉末，主要用作催化剂、氧化剂，也可用于制造钴盐、搪瓷颜料。

四氧化三钴 是一种黑色固体，分子式为Co 3 O 4。 它是一种 混合价态化合物，同时含有二价钴和三价钴，分子式也可以记为Co II Co III2 O 4[2] 或CoO·Co 2 O 3。 Co 3 O 4 晶体结构为 尖晶石 构型，其中O 2- 作立方紧密堆积；Co 2+ 离子为四配位，填充于四面体空隙；Co 3+ 离子为六配位，填充于八面体空隙。 [2]. 氧化亚钴 （CoO）在空气中加热至约600-700 °C会转变为四氧化三钴（Co 3 O 4） [2].： 6 CoO + O 2 → 2 Co 3 O 4. 四氧化三钴加热至900 °C会重新分解生成氧化 …

2009年3月21日 · Cobalt oxide | Co3O4 | CID 6432046 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

2025年1月26日 · This study presents a Co3O4 spinel-based catalyst featuring crystalline-amorphous interfaces and elucidates their role in molecular activation.

2021年1月1日 · In the present study, cobalt oxide (Co3 O 4) nanoparticles have been synthesized using cobalt nitrate as its source by precipitation approach. The structural properties of the synthesized Co3 O 4 nanoparticles were studied using × ray diffraction (XRD). The XRD results confirm the crystalline nature of the nanoparticles.

2021年5月24日 · Here, we show that nanocrystalline CeO 2 in a Co 3 O 4 /CeO 2 nanocomposite can modify the redox properties of Co 3 O 4 and enhances its intrinsic oxygen evolution reaction activity, and...

2014年1月3日 · Co 3 O 4 nanoparticles (Co 3 O 4 NPs), synthesized by the coprecipitation method, showed intrinsic catalase-like, peroxidase-like, and SOD-like activity. The catalytic activity of Co 3 O 4 NPs was much higher than analogous Fe 3 O 4 NPs.

2011年8月7日 · Here, we report a hybrid material consisting of Co 3 O 4 nanocrystals grown on reduced graphene oxide as a high-performance bi-functional catalyst for the oxygen reduction reaction (ORR) and...

Co3O4 is Hausmannite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are two inequivalent Co+2.67+ sites. In the first Co+2.67+ site, Co+2.67+ is bonded to six equivalent O2- atoms to form CoO6 octahedra that share corners with six equivalent CoO4 tetrahedra and edges with six equivalent ...