IHEP OpenIR  > 多学科研究中心
Activated-carbon-supported K-Co-Mo catalysts for synthesis of higher alcohols from syngas
Lv, MM; Xie, W; Sun, S; Wu, GM; Zheng, LR; Chu, SQ; Gao, C; Bao, J; Zheng LR(郑黎荣); Chu SQ(储胜启)
2015
发表期刊CATALYSIS SCIENCE & TECHNOLOGY
卷号5期号:5页码:2925-2934
摘要A series of activated-carbon-supported K-Co-Mo catalysts (K-Co-Mo/AC) were prepared by using a solgel method combined with incipient wetness impregnation. The catalyst structure was characterized by X-ray diffraction (XRD), N-2 adsorption-desorption, X-ray absorption fine structure spectroscopy and X-ray photoelectron spectroscopy, and their catalytic performance toward synthesis of higher alcohols from syngas was investigated. The large surface area and pore volume of the support facilitated the distribution of metal particles and high dispersion of metals. At low Mo loading, the Mo atoms on the activated carbon surface were mainly tetrahedrally coordinated Mo6+ species. With an increase in the Mo loading, the coordination environment of the surface Mo atoms gradually transformed from tetrahedrally coordinated Mo6+ to octahedrally coordinated Mo4+, indicating that an increase in the Mo loading promoted the reduction of Mo6+ species to Mo4+ species. After reduction, it was observed that a type of a lower state Mo delta+ (1 < delta < 4) species was present on the surface, which is suggested to be responsible for alcohol synthesis. Compared to the unsupported catalyst, K-Co-Mo/AC exhibited a significantly higher activity for alcohol formation. In particular, the C2+ alcohol content increased significantly. This can be attributed to the fact that the supported catalysts have a high active surface area, and the mesoporous structure is suggested to prolong the residence time of intermediates to form alcohols in the pores to some extent, thus promoting the formation of higher alcohols. Under the conditions of a Mo/AC weight ratio of 40% and a reduction temperature of 798 K, the K-Co-Mo/AC catalyst exhibited the highest activity for alcohol formation, which may be attributed to the high content of Mo delta+ (1 < delta < 4) species on the surface.
文章类型Article
学科领域Chemistry
DOI10.1039/c5cy00083a
收录类别SCI ; EI
WOS类目Chemistry, Physical
WOS记录号WOS:000353641800043
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228557
专题多学科研究中心
粒子天体物理中心
推荐引用方式
GB/T 7714
Lv, MM,Xie, W,Sun, S,et al. Activated-carbon-supported K-Co-Mo catalysts for synthesis of higher alcohols from syngas[J]. CATALYSIS SCIENCE & TECHNOLOGY,2015,5(5):2925-2934.
APA Lv, MM.,Xie, W.,Sun, S.,Wu, GM.,Zheng, LR.,...&储胜启.(2015).Activated-carbon-supported K-Co-Mo catalysts for synthesis of higher alcohols from syngas.CATALYSIS SCIENCE & TECHNOLOGY,5(5),2925-2934.
MLA Lv, MM,et al."Activated-carbon-supported K-Co-Mo catalysts for synthesis of higher alcohols from syngas".CATALYSIS SCIENCE & TECHNOLOGY 5.5(2015):2925-2934.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
495.pdf(4239KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Lv, MM]的文章
[Xie, W]的文章
[Sun, S]的文章
百度学术
百度学术中相似的文章
[Lv, MM]的文章
[Xie, W]的文章
[Sun, S]的文章
必应学术
必应学术中相似的文章
[Lv, MM]的文章
[Xie, W]的文章
[Sun, S]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。