Synthesis of CoC2O4•2H2O nanorods and their thermal decomposition to Co3O4 nanoparticles
Synthesis of CoC2O4•2H2O nanorods and their thermal decomposition to Co3O4 nanoparticles
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DOI：
10.1016/j.cplett.2009.06.015
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发表时间：
2009-07-07
影响因子：
2.8
通讯作者：
Wei, Bingqing
中科院分区：
文献类型：
--
作者：
Ren, Ling;Wang, Panpan;Wei, Bingqing
通过微乳液介导的溶剂热法合成的草酸钴纳米棒前驱体的热分解很容易获得Co3O4纳米颗粒。实验结果表明，水与表面活性剂的摩尔比和反应物浓度对CoC2O4中心点2H(2)O纳米棒以及Co3O4纳米颗粒的形貌控制起着重要作用。还研究了 Co3O4 纳米颗粒对甲烷燃烧的催化活性。结果显示，与散装 Co3O4 相比，在较低温度（350 摄氏度）下具有较高的转换效率（接近 67%），这表明天然气燃烧的可用性和有毒气体的去除有显着改善。 (C) 2009 Elsevier B.V. 保留所有权利。
Co3O4 nanoparticles were readily obtained via thermal decomposition of cobalt oxalate nanorods precursor, which was synthesized by microemulsion-mediated solvothermal method. Experimental results revealed that the molar ratio of water to surfactant and the concentration of reactants played important roles in morphological control of CoC2O4 center dot 2H(2)O nanorods as well as Co3O4 nanoparticles. Catalytic activity of Co3O4 nanoparticles for methane combustion was also investigated. The results showed a high conversion efficiency (similar to 67%) at a lower temperature (350 degrees C) compared with bulk Co3O4, indicating a significant improvement for availability of the natural gas combustion and the removal of toxic gases. (C) 2009 Elsevier B.V. All rights reserved.