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 Macroscopic carbon nanotubes foam with high specific surface area and full accessibility
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Tác giả hoặc Nhóm tác giả: Y. Liu, L.D. Nguyen, H. Ba, T. Truong-Huu, F. Vigneron, I. Janowska, D. Begin, C. Pham-Huu
Nơi đăng: 'CARBOCAT-V', June 2012 Bressanone - Brixen Italy, 2012
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; Số: xxx;Từ->đến trang: xxx;Năm: 2012
Lĩnh vực: Khoa học công nghệ; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
Carbon nanotubes (1D) have long been studied by numerous research groups in several potential applications including electronic, light weight/high strength composite, selective filter, sensor and catalysis. In the heterogeneous catalysis application the nanoscopic dimension of the CNTs provides a high effective and fully accessible surface area to the reactant leading to a higher catalytic performance compared to the traditional supports. However, for catalytic application the direct use of the CNTs in a powder form is limited to the liquid-phase reaction as it use in the fixed-bed reactor is hampered due to the problem linked with the high pressure drop across the catalytic bed. The aim of the present work is to design a simple and effective method to produce high specific surface area, > 350 m2·g-1, and full accessibility CNTs foam with controlled macroscopic shapes. This type of foam will be employed as catalyst support for catalytic reactions where mass and heat transfer phenomena are critical issues.
ABSTRACT
Carbon nanotubes (1D) have long been studied by numerous research groups in several potential applications including electronic, light weight/high strength composite, selective filter, sensor and catalysis. In the heterogeneous catalysis application the nanoscopic dimension of the CNTs provides a high effective and fully accessible surface area to the reactant leading to a higher catalytic performance compared to the traditional supports. However, for catalytic application the direct use of the CNTs in a powder form is limited to the liquid-phase reaction as it use in the fixed-bed reactor is hampered due to the problem linked with the high pressure drop across the catalytic bed. The aim of the present work is to design a simple and effective method to produce high specific surface area, > 350 m2·g-1, and full accessibility CNTs foam with controlled macroscopic shapes. This type of foam will be employed as catalyst support for catalytic reactions where mass and heat transfer phenomena are critical issues.
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