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  2. Curium(III) oxide - Wikipedia

    en.wikipedia.org/wiki/Curium(III)_oxide

    Curium(III) oxide is a compound composed of curium and oxygen with the chemical formula Cm 2 O 3. It is a crystalline solid with a unit cell that contains two curium atoms and three oxygen atoms. The simplest synthesis equation involves the reaction of curium(III) metal with O 2−: 2 Cm 3+ + 3 O 2−---> Cm 2 O 3. [1]

  3. Curium(IV) oxide - Wikipedia

    en.wikipedia.org/wiki/Curium(IV)_oxide

    Metallic curium is annealed in air or in an oxygen atmosphere: [1] Cm + O 2 → CmO 2. Curium(III) hydroxide and curium(III) oxalate are also usually used for this purpose: Cm(OH) 4 → CmO 2 + 2H 2 O Cm(C 2 O 4) 2 → CmO 2 + 2CO 2 + 2CO. Another way is the reaction of curium(III) oxide in an oxygen atmosphere at 650 °C: [2] 2Cm 2 O 3 + O 2 ...

  4. Curium compounds - Wikipedia

    en.wikipedia.org/wiki/Curium_compounds

    Curium readily reacts with oxygen forming mostly Cm 2 O 3 and CmO 2 oxides, [1] but the divalent oxide CmO is also known. [2] Black CmO 2 can be obtained by burning curium oxalate (Cm 2 (C 2 O 4) 3), nitrate (Cm(NO 3) 3), or hydroxide in pure oxygen. [3] [4] Upon heating to 600–650 °C in vacuum (about 0.01 Pa), it transforms into the whitish ...

  5. Curium - Wikipedia

    en.wikipedia.org/wiki/Curium

    Curium is a synthetic chemical element; it has symbol Cm and atomic number 96. This transuranic actinide element was named after eminent scientists Marie and Pierre Curie , both known for their research on radioactivity .

  6. Ceria based thermochemical cycles - Wikipedia

    en.wikipedia.org/wiki/Cerium(IV)_oxide–cerium...

    Since the metal oxide is a solid structure, both reactions must be done in the same reactor, which leads to a discontinuous production process, carrying out one step after the other. To avoid this stops in the production time, multiple reactors can be arranged to approximate a continuous production process.

  7. Cerium(IV) oxide - Wikipedia

    en.wikipedia.org/wiki/Cerium(IV)_oxide

    Cerium(IV) oxide, also known as ceric oxide, ceric dioxide, ceria, cerium oxide or cerium dioxide, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO 2. It is an important commercial product and an intermediate in the purification of the element from the ores.

  8. Lead chamber process - Wikipedia

    en.wikipedia.org/wiki/Lead_chamber_process

    Nitric oxide escapes from the reaction liquor and is subsequently reoxidized by molecular oxygen to nitrogen dioxide. This is the overall rate determining step in the process: [3] 2 NO + O 2 → 2 NO 2. Nitrogen oxides are absorbed and regenerated in the process, and thus serve as a catalyst for the overall reaction: 2 SO 2 + 2 H 2 O + O 2 → ...

  9. Chemical looping reforming and gasification - Wikipedia

    en.wikipedia.org/wiki/Chemical_looping_reforming...

    In either scheme, the combustion of metal oxide by air in the chemical looping system provides the heat source that sustains the endothermic SMR reactions. In the chemical looping system, natural gas and the recycled off-gas from the pressure swing adsorption (PSA) of the SMR process system are used as the feedstock for the CLC fuel reactor ...