期刊文献+

Low-temperature thermocatalytic particulate carbon decomposition via urea solution-combustion derived CeO2 nanostructures 被引量:1

原文传递
导出
摘要 A facile,one-pot,urea solution combustion route was utilized to synthesize highly catalytic CeO2 nanostructures.CeO2 prepared under varying thermal conditions was characterized by electron microscopy,energy dispersive X-ray spectroscopy,X-ray diffraction,X-ray photoelectron spectroscopy,infrared and Raman techniques.As the synthesis temperature is raised from 400 to 1000℃,the crystallite size and dspacing of nanoparticles are observed to reduce while cell parameters remain in the same range.Particle size exhibits an accession from~20 to~50 nm along the process.Initial CeO2 nanoparticles are detected as a composite structure of CeO2 and graphitic carbon nitride(g-C3 N4)produced by the pyrolysis of urea.Concerning the solid carbon particulate oxidation capacity,an outstanding performance is exhibited by CeO2 synthesized at 800℃where the oxidation onset temperature is reduced by 27%compared with the others.The superior performance is attributed to the carbon nitride-generated unique CeO2 nanomorphology consolidating ample reactive sites and facilitated oxygen delivery for a highly efficient thermocatalytic process.Concerning atmospheric pollution mitigation,synthesis of these CeO2 nanostructures represents a cost effective and convenient abatement technique for carbon particulates in comparison to cost-intensive,environmentally detrimental and noble-metal based techniques.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2021年第1期67-74,I0003,共9页 稀土学报(英文版)
  • 相关文献

参考文献3

二级参考文献24

  • 1Zhang Z L,Zhang Y X,Wang Z P,Gao X Y. Catalytic performance and mechanism of potassium-supported Mg-Al hydrotalcite mixed oxides for soot combustion with O2[J].{H}Journal of Catalysis,2010.12.
  • 2Shangguan W F,Teraoka Y,Kagawa S. Promotion effect of potassium on the catalytic property of CuFe2O4 for the simultaneous removal of NOx and diesel soot particulate[J].{H}Applied Catalysis B:Environmental,1998.149.
  • 3Wei Y C,Liu J,Zhao Z,Chen Y S Xu C M Duan A J Jiang G Y He H. Highly active catalysts of gold nanopar-ticles sup-ported on three-dimensionally ordered macro-porous La-FeO3 for soot oxidation[J].{H}ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2011.2326.
  • 4Oi-Uchisawa J,Obuchi A,Zhao Z,Kushiyama S. Carbon oxidation with platinum supported catalysts[J].{H}Applied Catalysis B:Environmental,1998.183.
  • 5Sun M,Wang L,Feng B N,Zhang Z G Lu G Z Guo Y. The role of potassium in K/Co3O4 for soot combustion under loose contact[J].{H}Catalysis Today,2011.100.
  • 6Liang H,Hong Y X,Zhu C Q,Li S H Chen Y Liu Z L Ye D Q. Influence of partial Mn-substitution on surface oxygen species of LaCoO3 catalysts[J].{H}Catalysis Today,2013.98.
  • 7Weng D,Li J,Wu X D,Lin F. Promotional effect of po-tassium on soot oxidation activity and SO2-poisoning re-sistance of Cu/CeO2 catalyst[J].Catal Commu,2008.1898.
  • 8Liu J,Zhao Z,Wang J Q,Xu C M,Duan A J,Jiang G Y,Yang Q. The highly active catalysts of nanometric CeO2-supported cobalt oxides for soot combustion[J].Appl Catal B,2008.185.
  • 9Wei Y C,Liu J,Zhao Z,Duan A J Jiang G Y Xu C M Gao J S He H Wang X P. Three-dimensionally ordered macroporous Ce0.8Zr0 2O2-supported gold nanoparticles:synthesis with controllable size and high catalytic,per-formance for soot oxidation[J].Energy&Environ Sci,2011.2959.
  • 10Wei Y C,Zhao Z,Liu J,Xu C M Jiang G Y Duan A J. Design and Synthesis of 3D ordered macroporous CeO2-supported Pt@CeO2-δcore-shell nanoparticle materials for enhanced catalytic activity of soot oxidation[J].{H}SMALL,2013.3957.

共引文献22

同被引文献25

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部