摘要
以Ce（NO3）3·6H2O为前驱体，十二烷基硫酸钠（SDS）为结构导向剂和碳源，用固相法在有氧环境和低温条件下，制备CeO2@C纳米核壳结构. XRD、FESEM和TEM分析表明，产物粒径在10-30 nm，并且具有一定的多面体外形，表面碳层约2 nm.结果表明，利用SDS的—SO4-基团和Ce3＋的键合作用，能够诱导CeO2的有序生长，形成具有特定晶面的纳米颗粒.
CeO2@C core-shell nano structure was synthesized via a solid phase method at low calcine temperature in the presence of oxygen,with Ce（NO3）3·6H2O as precursor,SDS as structure oriented agent and carbon source.The product was in a size of 10-30 nm and presented polyhedral shape with -2 nm thick carbon coated.The results indicated that the interaction between-SO4- and Ce3＋could be used to induce the oriented growth of CeO2 to form nanoparticle with special crystal faces,which would be beneficial to the research of the catalytic properties of CeO2.
出处
《淮北师范大学学报（自然科学版）》
CAS
2015年第4期33-36,共4页
Journal of Huaibei Normal University：Natural Sciences
基金
安徽省高校省级自然科学研究项目(KJ2013B249)
稀土资源利用国家重点实验室开放基金(RERU2013003)
关键词
CEO2
核壳结构
固相法
SDS
SDS
core-shell nano structure
solid phase method
SDS
