Hydrogen production through glycerol steam reforming using Co catalysts supported on SBA-15 doped with Zr, Ce and La
详细信息 查看全文
- 作者：Alicia Carrero ; alicia.carrero@urjc.es ; Arturo J. Vizcaí ; no ; José ; A. Calles ; Lourdes Garcí ; a-Moreno
- 关键词：Cobalt ; SBA-15 ; Cerium ; Zirconium ; Lanthanum ; Steam reforming ; Hydrogen
- 刊名：Journal of Energy Chemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：26
- 期：1
- 页码：42-48
- 全文大小：2990 K
- 卷排序：26
文摘
The steam reforming of glycerol has been studied at 500 and 600 ºC 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 temperature-programed 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 ºC, Co/M/SBA-15 (M: Zr, Ce, or La) catalysts produce higher hydrogen amounts than Co/SBA-15.