Hydrogen production through glycerol steam reforming using Co catalysts supported on SBA-15 doped with Zr, Ce and La

• 来源期刊: 能源化学
• 年，卷（期）: 2017,（1）
• 页码范围: 42-48
• 页数: 7页
• 语种: 英文
• DOI: 10.1016/j.jechem.2016.09.001

摘要

The steam reforming of glycerol has been studied at 500 and 600 ℃ using Co/SBA-15 and Co/M/SBA-15 (M:Zr,Ce,or La) promoted catalysts.The prepared materials were characterized by inductively coupled plasma atomic emission spectroscopy (ICP-AES),X-ray powder diffraction (XRD),hydrogen temperatureprogramed reduction (H2-TPR),ammonia temperature-programed desorption (NH3-TPD),nitrogen physisorption analysis (N2-BET),transmission electron microscopy (TEM) and thermogravimetric analysis (TGA).The incorporation of promoters like Zr,Ce and La on SBA-15 support and successive Co impregnation leaded to smaller cobalt crystallites improving metaldispersion.Besides,stronger metal-support interactions between Co species and M/SBA-15 supports were observed.Thanks to the incorporation of Zr,La and mainly Ce,promoted catalysts present higher glycerol conversion than Co/SBA-15 along 5 h of time on stream.Besides,at 600 ℃,Co/M/SBA-15 (M:Zr,Ce,or La) catalysts produce higher hydrogen amounts than Co/SBA-15.