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Journal of Sol-Gel Science and Technology

, Volume 86, Issue 2, pp 383–390 | Cite as

Facile preparation of ZrCO composite aerogel with high specific surface area and low thermal conductivity

  • Sheng Cui
  • Hao Suo
  • Feng Jing
  • Shuwen Yu
  • Jun Xue
  • Xiaodong Shen
  • Benlan Lin
  • Shengjun Jiang
  • Yu Liu
Original Paper: Nano- and macroporous materials (aerogels, xerogels, cryogels, etc.)
  • 273 Downloads

Abstract

A novel ZrCO composite aerogel is synthesized using zirconium oxychloride and resorcinol–formaldehyde (RF) as precursors through the sol–gel route and carbothermal reduction process. The effects of different Zr/R molar ratios and calcination temperatures on the physical chemistry properties of ZrCO aerogels are investigated. The ZrCO composite aerogel consists of the C/ZrO2/ZrC ternary aerogel. The results show that with the increase of R/Zr molar ratios, the specific surface area and bulk density increase with calcination temperature up to 1300 °C, but decrease at even temperature (1500 °C). The specific surface area is as high as 637.4 m2/g for ZrCO composite aerogel (R:Zr = 2:1), which was higher than ever reported. As the heat-treatment temperature increases to 1500 °C, the ZrC crystalline phase occurs and the t-ZrO2 phase still appears within the composite. The thermal conductivity of the carbon fiber mat-reinforced composite aerogel is as low as 0.057 W/m/K at room temperature (25 °C).

Keywords

Sol–gel ZrCO aerogel nanomaterials specific surface area thermal conductivity 

Notes

Acknowledgements

This work was financially supported by the Industry Program of Science and Technology Support Project of Jiangsu Province (BE2016171), the Program for Changjiang Scholars and Innovative Research Team in University (No. IRT_15R35), the Major Program of Natural Science Fund in Colleges and Universities of Jiangsu Province (15KJA430005), the Prospective Joint Research Program of Jiangsu Province (BY2015005-01), the Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX17_0977), and the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Sheng Cui
    • 1
    • 2
  • Hao Suo
    • 1
    • 2
  • Feng Jing
    • 1
    • 2
  • Shuwen Yu
    • 1
    • 2
  • Jun Xue
    • 1
  • Xiaodong Shen
    • 1
    • 2
  • Benlan Lin
    • 1
  • Shengjun Jiang
    • 1
    • 2
  • Yu Liu
    • 3
  1. 1.Department of Materials Science and EngineeringNanjing Tech UniversityNanjingChina
  2. 2.Jiangsu Collaborative Innovation Center for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjingChina
  3. 3.Institute of Chemistry MaterialsCAEPMianyangChina

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