水煤气变换反应
纳米棒
贵金属
催化作用
面(心理学)
化学工程
工作(物理)
氢
材料科学
金属
化学
纳米技术
冶金
热力学
有机化学
工程类
心理学
社会心理学
物理
人格
五大性格特征
作者
Tongrui Shao,Liru Cao,Lin Li,Yang Su,Baolin Hou,Jian Lin,Xiaodong Wang
标识
DOI:10.1016/j.cej.2024.149967
摘要
Water gas shift (WGS) reaction is an important process to remove CO contaminant in industrial hydrogen resources. The efficient catalyst that can work at low temperature is keenly desired to achieve high CO conversion from the viewpoint of thermodynamic equilibrium. Here, we develop a noble-metal-free catalyst of MoC nanorod (MoC NR) with the dominant (2 0 0) facet for the low-temperature WGS reaction. It exhibits a high performance with ∼ 100 % CO conversion at 175 °C, better than conventional MoC with the dominant (1 1 1) facet or the commercial Cu-based catalyst. Moreover, it shows rather better stability due to the presence of the dominant (2 0 0) facet. Various characterizations demonstrate that this facet facilitates MoC NR possessing higher removal capability of surface oxygen species to enhance the stability and lower activation energy to endow higher performance compared with conventional MoC. This study provides important implications for the rational design of cost-effective catalysts for the low-temperature WGS reaction.
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