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Sol-coated preparation and characterization of macroporous α-Al2O3 membrane support

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Abstract

A simple approach namely sol-coated technique has been developed for the low cost fabrication of macroporous ceramic under a far below common sintering temperature of alumina with large dimension grains. The prepared green support shows higher sinteractive than the one treated by wet impregnation method under the same sintering conditions. The support possesses great potential applications with 6.63–7.71 μm in pore size, 39% open porosity as well as >45 MPa mechanical strength at the sintering temperature range of 1350°– 1500°C. The results indicate that the nitrogen gas flux and pure water permeation value was 51 252.35 m3 m−2 h−1 bar−1, 98.43 m3 m−2 h−1 bar−1, respectively, which were more dependent on the pore structure and pore size distribution than open porosity.

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Acknowledgment

This work was supported by the Natural Science Foundation of China (contract No. 20271047) and the Ministry of Science and Technology of China (contract No. 2003CB615700).

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Hefei University of Technology, Hefei, Anhui, 230009, P.R. China

    Yong Hong Wang

  2. Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China

    Yong Hong Wang, Yang Zhang, Xing Qin Liu & Guang Yao Meng

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  1. Yong Hong Wang
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  2. Yang Zhang
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  3. Xing Qin Liu
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  4. Guang Yao Meng
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Correspondence to Yong Hong Wang.

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Wang, Y.H., Zhang, Y., Liu, X.Q. et al. Sol-coated preparation and characterization of macroporous α-Al2O3 membrane support. J Sol-Gel Sci Technol 41, 267–275 (2007). https://doi.org/10.1007/s10971-006-1504-8

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  • DOI: https://doi.org/10.1007/s10971-006-1504-8

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