Shape Control of Cobalt Carbonate Particles by a Hydrothermal Process in a Mixed Solvent: An Efficient Precursor to Nanoporous Cobalt Oxide Architectures and Their Sensing Property
Shape Control of Cobalt Carbonate Particles by a Hydrothermal Process in a Mixed Solvent: An Efficient Precursor to Nanoporous Cobalt Oxide Architectures and Their Sensing Property
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DOI：
10.1021/cg8003068
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发表时间：
2009-01
影响因子：
3.8
通讯作者：
Huai-Ping Cong;Shuhong Yu
中科院分区：
文献类型：
--
作者：
Huai-Ping Cong;Shuhong Yu
在水和乙醇（或甘油）的混合溶剂中，采用水热法实现了CoCO3晶体的形貌控制合成。通过调节水和乙醇（或甘油）的体积比，可以制备出结构新颖、均匀的CoCO3晶体。结果表明，在500 °C下煅烧所得CoCO3晶体可作为制备孔径为2.5和60 nm的纳米多孔Co3O4颗粒的有效前驱体。纳米多孔Co_3O_4颗粒具有灵敏的响应和可逆的传感性能。
Shape-controlled synthesis of CoCO3 crystals has been achieved by a hydrothermal process in a mixed solvent of water and ethanol (or glycerol). Uniform CoCO3 crystals with novel structures can be fabricated by tuning the volume ratio of water and ethanol (or glycerol). The results demonstrated that the as-prepared CoCO3 crystal can act as an efficient precursor for production of nanoporous Co3O4 particles with pore sizes of 2.5 and 60 nm by calcination at 500 °C. The nanoporous Co3O4 particles show sensitive response and reversibility in sensing performance.