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首页> 外文会议>International Symposium on Eco-Materials Processing amp; Design; 20060108-11; Chengdu(CN) >Synthesis of Ceria-Coated Copper Oxide Particles for Direct Hydrocarbon SOFCs Anode
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Synthesis of Ceria-Coated Copper Oxide Particles for Direct Hydrocarbon SOFCs Anode

机译：用于直接烃类SOFC阳极的二氧化铈包覆的氧化铜颗粒的合成

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摘要

Ceria-coated copper oxide powders were prepared by the precipitation method using cerium nitrate hexahydrate and ammonia as a precipitant. Heterogeneous nucleation and growth of ceria took place on the copper oxide surface by dispersing the copper oxide particles in cerium nitrate aqueous solution and subsequently adding ammonia into it. Process conditions such as the pH of the precursor solution and precipitation temperatures were carefully controlled for the homogeneous precipitation of ceria particles. It was found that copper oxide was homogeneously coated with nano-sized (～20 nm) ceria particles at room temperature. The morphology of ceria and ceria-coated copper oxide powder were examined by field-emission scanning electron microscopy (FE-SEM) as a function of precipitation temperature.
机译：通过沉淀法使用六水合硝酸铈和氨作为沉淀剂，制备了氧化铈包覆的氧化铜粉末。通过将氧化铜颗粒分散在硝酸铈水溶液中，然后向其中添加氨，在氧化铜表面上发生二氧化铈的异质形核和生长。为了均匀地沉淀二氧化铈颗粒，小心地控制了工艺条件，例如前体溶液的pH和沉淀温度。发现在室温下，氧化铜被纳米尺寸（〜20 nm）的二氧化铈颗粒均匀涂覆。通过场发射扫描电子显微镜（FE-SEM）检查了二氧化铈和二氧化铈包覆的氧化铜粉末的形态随沉淀温度的变化。

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