摘要
由于Ca_3Co_4O_9具有良好的化学稳定性及廉价、无毒等优点,已成为氧化物热电材料研究的热点。但其合成难,致密度低,转换效率低等严重阻碍了Ca_3Co_4O_9的实际应用。该文从合成方法、改性手段及烧结工艺等3方面,归纳和分析了层状结构Ca_3Co_4O_9的研究进展,并对Ca_3Co_4O_9今后的研究发展提出一些建议。
Ca3Co4O9 has become a research hotspot in the field of oxide thermoelectric materials due to its good chemical stability,low cost and non-toxicity.However,the practical application of Ca3Co4O9 is seriously hindered by its difficult synthesis,low density and low conversion efficiency.In this paper,the research progress of Ca3Co4O9 with layered structure is summarized and analyzed from the aspects of synthesis method,modification method and sintering process,and some suggestions for the future research and development of Ca3Co4O9 are put forward.
作者
王笑
刘向春
WANG Xiao;LIU Xiangchun(School of Material Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)
出处
《压电与声光》
CAS
北大核心
2019年第2期275-284,共10页
Piezoelectrics & Acoustooptics
基金
凝固技术国家重点实验室开放课题资助项目(SKLSP201624)
国家自然科学基金资助项目(51602252)
国家重点基础研发项目子课题资助项目(2017YFC0703204)
关键词
CA3CO4O9
氧化物
综述
热电材料
层状
研究发展
Ca3Co4O9
oxide
review
thermoelectric material
layered structure
research development
