Synthesis of mesoporous CuFe/silicates catalyst for methanol steam reforming. (31st May 2019)

• Record Type: Journal Article
• Authors: Kuo, Mei-Te; Chen, Yun-Ying; Hung, Wei-Ying; Lin, Sheng-Feng; Lin, Hong-Ping; Hsu, Chun-Han; Shih, Hui-Ya; Xie, Wen-An; Li, Shou-Nan
• Is Part Of: International journal of hydrogen energy. Volume 44:Number 28(2019)
• Page Start: 14416
• Page End: 14423
• Publication Date: 2019-05-31
• Subjects: Mesoporous materials -- Steam reforming -- Catalyst -- Hydrogen -- Silicate; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2019.03.014
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: In this study, mesoporous CuFe/silicate catalysts were obtained from a simultaneously mixing the NaOH and metal-ion solution to sodium silicate solution and a hydrothermal treatment under alkaline condition without using any organic template. During hydrothermally reaction, the amorphous metal-silicate would reconstruct and formation of the mesostructured CuFe/silicate. At appropriate pH values, the silicate species can strongly bind with the Cu 2+ ions to form the stable CuFe/silicate, and the [Cu 2+ ] in the final filtrated solution is lower than the effluent standard in Taiwan (1.0 ppm). To find the appropriate synthetic parameters, the effects of the pH value, metal to silicate ratio, and the hydrothermal treatment time on the surface areas and mesostructure of the resulted CuFe/silicates were discussed in detail. In practice, the mesoporous CuFe/silicate catalyst with high surface area of 547 m 2 g -1 demonstrated a high methanol conversion within 1 h up to >99% at 180 °C to be used as high-performance catalysts for steam reformer of methanol. Highlights: Mesoporous CuFe/silicate catalysts with high surface area of 547 m 2 g -1 were obtained. The [Cu 2+ ] in the final filtrated solution is lower than 1.0 ppm. The CuFe/silicate catalysts demonstrate high methanol conversion up to >99% at 180 °C.