The double-edged effect of citric acid on the catalytic activity of nano-sized MoS2 toward sulfur-resistant CO methanation
The double-edged effect of citric acid on the catalytic activity of nano-sized MoS2 toward sulfur-resistant CO methanation
复制标题
柠檬酸对纳米MoS2耐硫CO甲烷化催化活性的影响
DOI：
10.1002/aoc.4339
复制
发表时间：
2018
影响因子：
3.9
通讯作者：
Zhenhua Li
中科院分区：
文献类型：
--
作者：
Zhenhua Li
在这项工作中，采用简便的水热路线来制备纳米级MoS2催化剂。研究了MoS2制备过程中柠檬酸对耐硫CO甲烷化催化活性的影响。研究发现柠檬酸对MoS2耐硫CO甲烷化的催化活性产生不利影响。然而，当在催化剂制备过程中去除 NH2OH·HCl 作为还原剂时，CO 甲烷化性能会更好。通过 X 射线衍射 (XRD) 和红外光谱 (IR) 来讨论柠檬酸对 CO 甲烷化性能影响的可能机制。
In this work, a facile hydrothermal route was used to prepare nano-sized MoS2 catalyst. The effect of citric acid during the MoS2 preparation process on the catalytic activity of sulfur-resistant CO methanation was investigated. It was found that citric acid played an adverse role on the catalytic activity of MoS2 toward sulfur-resistant CO methanation. However, CO methanation performance turned out to be better when NH2OH⋅HCl as a reductant was removed during the catalyst preparation process. The X-ray diffraction (XRD) and infrared spectroscopy (IR) were performed to discuss the possible mechanism for the effect of citric acid towards CO methanation performance.