天然气化工Issue(3)：25-29,5.
K含量对纳米K/Fe/β-Mo2C催化剂CO加氢反应性能的影响
Influence of K content on performance of nano-structured K/Fe/β-Mo2C catalysts in CO hydrogenation
摘要
Abstract
Abastract: A series of nano-sized K/Fe/β-Mo2C catalysts were prepared by a modified sol-gel method followed by a temperature-programmed carburization process under argon flow. The effects of K on the texture properties, structure and catalytic performance of the catalysts were investigated. The results showed that the introduction of K increased β-Mo2C particle size of the catalysts, and the addition of proper content of K could improve the surface area, the CO hydrogenation activity and the selectivity to higher alcohols of the catalysts. However, when excessive K was added, the inert K2MoO4 and/or K2Mo2O7 would be formed on the surface of the catalysts, which resulted in that part of the active species were covered and the catalytic activity and selectivity of higher alcohols were decreased.关键词
溶胶-凝胶法/柠檬酸/纳米尺寸/β-Mo2C催化剂/一氧化碳/加氢/混合醇Key words
sol-gel method/citrate acid/nano-size/β-Mo2C catalyst/carbon monoxide/hydrogenation/mixed alcohols分类
化学化工引用本文复制引用
赵立红,闫捷,房克功,魏灵朝,蒋元力,孙予罕..K含量对纳米K/Fe/β-Mo2C催化剂CO加氢反应性能的影响[J].天然气化工,2014,(3):25-29,5.基金项目
国家自然科学基金重大项目 （）
