Oxidative steam reforming of ethanol for hydrogen production on M/Al 2O 3

Chih Cheng Hung, Shing Li Chen, Yi Kai Liao, Chih Hao Chen, Jeng Han Wang*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

47 引文 斯高帕斯(Scopus)

摘要

In this work, we investigate oxidative steam reforming (OSR) of ethanol on a series of metals under various catalytic conditions (H 2O/ethanol and O 2/ethanol ratios) to understand the reaction mechanism and to optimize the catalytic conditions for optimal hydrogen production. There are three reaction pathways for OSR using these metals. Ethanol can be oxidized to acetaldehyde on Cu, Ag and Au, and it can be dehydrated to form ethylene on Co, Ni, Pd and Pt. Ethylene can form coke and degrade catalysts after the long-term OSR. In the third pathway, ethanol preferentially breaks its C-C bond and is further oxidized to CO or CO 2 on Ru, Rh and Ir, providing optimal hydrogen production. In addition, increasing H 2O/ethanol and O 2/ethanol ratios can improve catalytic activity, attributable to atomic oxygen from H 2O and O 2 efficiently rupturing the C-C bond of ethanol. This concept explains the improved performance of OSR on the CeO 2-modified catalyst, which shows better oxygen storage capability.

原文英語
頁(從 - 到)4955-4966
頁數12
期刊International Journal of Hydrogen Energy
37
發行號6
DOIs
出版狀態已發佈 - 2012 3月

ASJC Scopus subject areas

  • 可再生能源、永續發展與環境
  • 燃料技術
  • 凝聚態物理學
  • 能源工程與電力技術

指紋

深入研究「Oxidative steam reforming of ethanol for hydrogen production on M/Al 2O 3」主題。共同形成了獨特的指紋。

引用此