钕掺杂对铈锆复合氧化物储氧性能的影响
Journal Title: Science Paper Online - Year 2009, Vol 4, Issue 4
Abstract
通过共沉淀法合成了不同钕(Nd)掺杂量的铈锆复合氧化物。利用XRD、BET、EPR等手段研究了Nd对铈锆复合氧化物结构影响，并评价了样品在500 ℃的动态和静态储放氧特性。结果表明，Nd3+离子能够进入铈锆固溶体，导致晶格扭曲，促进四方富锆相向伪立方相转变，并在一定程度上抑制铈锆的高温烧结。掺杂适量Nd后，样品的Ce3+含量增多，从而提高了新鲜及老化样品的储氧能力(OSC)。
Authors and Affiliations
Duan Weng , Lei Wang , Xiaodong Wu, Xiaodi Wu
Keywords
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