Carbon dioxide reforming of methane to syngas over ordered mesoporous Ni/KIT-6 catalysts
发布时间：2024-12-01
点击次数：
- 影响因子：
- 7.139
- DOI码：
- 10.1016/j.ijhydene.2018.09.059
- 所属单位：
- 重庆工商大学
- 教研室：
- 材料科学与工程系
- 发表刊物：
- International Journal of Hydrogen Energy
- 项目来源：
- 重庆市科技局
- 关键字：
- Ni/KIT-6 catalysts；Ordered mesoporous structure；Methane；Carbon dioxide；Catforming；Syngas
- 摘要：
- The ordered mesoporous Ni/KIT-6 (KIT-6, an ordered mesoporous SiO2) catalysts were prepared by impregnation method for carbon dioxide reforming of methane. The physicochemical properties of the prepared catalysts were characterized by H2-TPR, XRD, BET, and TEM. The research results show that the specific surface area, pore diameter, crystal size of Ni species, and catalytic performance of the Ni/KIT-6 catalysts are obviously affected by the Ni content. Increasing Ni content results in the increment of the crystal size of Ni species, while the dispersion of Ni species shows the opposite trend. The specific surface area and pore size of the Ni/KIT-6 catalyst with the Ni loading of 3 wt% were 493.3 m2 g−1 and 6.22 nm, respectively. Besides, the Ni species are highly dispersed on the surface of KIT-6 support. Thereby, it exhibits the superior catalytic performance of carbon dioxide reforming of methane to syngas (CO and H2). At atmospheric pressure, the CO2 and CH4 conversions for each catalyst following the order: NK3 ≈ NK4 > NK5 > NK2 > NK1 > bulk Ni. When the reaction temperature is 600 °C, the conversions of CH4 and CO2 of the NK3 catalyst are 65.1% and 37.0%, respectively. Meanwhile, it also shows excellent stability.
- 第一作者：
- Deping Xia
- 合写作者：
- Ying Chen,Chunnan Li,Chendi Liu
- 论文类型：
- 源刊论文
- 通讯作者：
- Guilin Zhou
- 学科门类：
- 工学
- 文献类型：
- Journal Article
- 卷号：
- 43
- 期号：
- 45
- 页面范围：
- 20488–20499
- 是否译文：
- 否
- 发表时间：
- 2018-11-08
- 收录刊物：
- SCI