液体碳化合物的蒸汽改制,通过高性能和耐用的Ni/NiAl2O4/Al2O3催化剂增强
Zesong Wang1, Ying Yang1, Zihao Liao1
1Guangzhou Power Supply Bureau, Guangdong Power Grid Co., Ltd, Guangzhou 510620, P.R. China.
一种新的Ni/NiAl2O4/Al2O3催化剂增强了固氧化物燃料电池 (SOFC) 的生产. 优化的制备和减少温度产生了卓越的活性,抗碳沉积性和200小时的稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 固体氧化物燃料电池 (SOFC) 需要高效的改革催化剂,以实现工业化和低碳能源.
- 液态碳化合物燃料的改制是SOFC应用中气生产的关键过程.
- 开发稳定和活跃的催化剂对于克服SOFC的运营挑战至关重要.
研究的目的:
- 设计和研究一个Ni/NiAl2O4/Al2O3结构改造催化剂,用于生产.
- 为了评估准备和减少温度对催化剂性能的影响.
- 了解控制催化活性,碳沉积阻力和稳定性的结构性质关系.
主要方法:
- 一个Ni/NiAl2O4/Al2O3结构化催化剂的合成.
- 在不同的制备和还原温度下研究催化剂性能.
- 使用X射线衍射 (XRD) 和扫描电子显微镜 (SEM) 进行表征.
主要成果:
- 最佳的催化活性是在1000°C烧焦和600°C降解时获得的.
- 在750°C的降温温度下观察到对碳沉积的异常耐药性.
- 斯宾尔催化剂表现出增强的稳定性,在750°C下运行200小时而不停用.
结论:
- 缺陷的螺旋结构和较小的Ni粒子增强了催化活性和碳沉积阻力.
- 强大的金属支相互作用,由旋结构促进,有助于催化剂的稳定性.
- 该研究为设计用于SOFC应用的高度稳定的改革催化剂提供了宝贵的见解.
更多相关视频
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
11:33Laboratory Production of Biofuels and Biochemicals from a Rapeseed Oil through Catalytic Cracking Conversion
Published on: September 2, 2016
相关概念视频
Catalysis
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation
Turnover Number and Catalytic Efficiency
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
