使用KIT-6支持的基于非贵金属的催化剂从酸生产
Dilsad Dolunay Eslek Koyuncu1, Ilkin Tug1, Nuray Oktar1
1Chemical Engineering Department, Gazi University, Address 1, 06570, Ankara, Turkey.
在KIT-6上支持的催化剂有效地从酸中产生气. 在Ni@KIT-6催化剂中加入的活性较低,原因是焦炭形成增加,突出显示Ni@KIT-6是一种有前途的材料.
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:
- (Ni) 和 (Co) 是经济高效的非贵金属过渡金属,非常适合脱反应.
- 甲酸 (FA) 脱是产生气的一个关键反应.
- KIT-6是一种中孔材料,为催化剂支提供了很大的表面积.
研究的目的:
- 研究KIT-6支持的FA脱的Ni和Co催化剂的催化活性.
- 评估加入Ni@KIT-6催化剂的影响.
- 使用这些新型催化剂,优化FA中的生产.
主要方法:
- 合成KIT-6支持的Ni和Co催化剂.
- 使用N2吸附-脱附,X射线衍射 (XRD) 和扩散反射红外里埃变换光谱 (DRIFT) 的表征.
- 在PACKED-BED连续流反应堆中测试FA脱的催化性能.
主要成果:
- 金属加载保留了KIT-6的中孔结构.
- 同基催化剂表现出比Ni基催化剂更高的易斯酸度.
- 在200-350°C之间实现了完整的FA转换.
- 3Ni@KIT-6催化剂显示出最高的H2选择性.
- 同基催化剂显示较低的活性归因于焦炭形成.
结论:
- 支持KIT-6的Ni催化剂对FA的生产有效.
- 将纳入Ni@KIT-6催化剂并没有增强催化活性,导致性能降低.
- 3Ni@KIT-6催化剂是从酸中有效和选择性产生的有希望的材料.
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