通过支持的催化剂对COx -Free H2生产的等离子促进氨分解
Zhijun Wang1, Ge He2, Huazhou Zhang2
1Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, 610106, P.R. China.
这项研究表明,将介电屏障放电 (DBD) 血与催化剂相结合,可以在低温下有效地将氨分解为无COx. Ru/La2O3催化剂在清洁生产方面表现出卓越的性能.
科学领域:
- 催化剂是一种催化剂.
- 血科学是一门科学课.
- 材料科学 材料科学 材料科学
背景情况:
- 氨的分解是生产无二氧化碳气的关键过程,对于燃料电池技术至关重要.
- 氨的低温催化分解具有挑战性,需要有效的增强方法.
- 非热等离子体为改善低温催化反应提供了一个有希望的途径.
研究的目的:
- 使用介电屏障放电 (DBD) 血研究氨的等离子催化分解.
- 在这个过程中评估支持的 (Ru) 催化剂 (Ru/Y2O3,Ru/La2O3,Ru/CeO2,Ru/SiO2) 的性能.
- 了解催化剂特性和等离子体行为对氨分解效率的影响.
主要方法:
- 利用介电屏障放电 (DBD) 血来增强催化氨分解.
- 经过测试的支持Ru催化剂,包括Ru/La2O3,Ru/Y2O3,Ru/CeO2和Ru/SiO2.
- 分析了催化剂的物理化学特性和等离子体放电行为,以与反应性相关联.
主要成果:
- 与其他测试的催化剂相比,Ru/La2O3表现出优越的血催化反应性.
- 在380°C使用1.5%的Ru/La2O3催化剂实现了几乎完全的氨转化.
- 在特定条件下的高H2形成率 (10.7 mol gRu-1 h-1) 和能源效率 (535 mol gRu-1 (kWh) -1) 已被证明.
结论:
- 用等离子增强的催化剂在低温下显著增加了氨的转化.
- 催化剂支特性和等离子体放电特性对于优化等离子体催化性能至关重要.
- 使用Ru/La2O3开发的DBD等离子催化系统显示了高效低温气生产的巨大潜力.
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