Mesoporous carbon-confined Au catalysts with superior activity for selective oxidation of glucose to gluconic acid

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境纳米材料实验室

	Mesoporous carbon-confined Au catalysts with superior activity for selective oxidation of glucose to gluconic acid
	Ma, Chunyan ; Xue, Wenjuan ; Li, Jinjun ; Xing, Wei ; Hao, Zhengping
刊名	GREEN CHEMISTRY
	2013
卷号	15 期号:4 页码:1035-1041
通讯作者	Ma, CY
中文摘要	A series of ordered mesoporous carbon (OMC)-supported Au catalysts were successfully prepared by nano-replication, followed by colloidal gold deposition method. Structural analysis showed that the mesopore sizes of the catalysts can be tuned controllably in the range of 3.2-7.6 nm by adjusting the dosage of boric acid used to prepare the carbon supports. TEM observations revealed that the Au nanoparticles were dispersed uniformly in the mesopore channels of the carbon supports. These Au/OMC catalysts were tested for the aerobic oxidation of glucose to produce gluconic acid at 40 degrees C and pH 9. As demonstrated by the structural analysis and reaction results, the activities of these catalysts were closely related to their mesopore sizes. The catalyst with a mesopore size of 5.4 nm exhibited a superior catalytic activity with a TOF of 4.308 mol(glucose) mol(Au)(-1) s(-1) to the catalysts reported previously by other researchers. This high activity was mainly ascribed to its unique structure, consisting of 5.4 nm mesopore channels incorporated with 3.3 nm Au nanoparticles, which facilitates contact between glucose molecules and Au nanoparticles. Besides, the abundant active oxygen species existing on this catalyst surface also promote glucose oxidation.
收录类别	SCI
WOS记录号	WOS:000316691100023
公开日期	2014-06-05
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/7346]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Ma, Chunyan,Xue, Wenjuan,Li, Jinjun,et al. Mesoporous carbon-confined Au catalysts with superior activity for selective oxidation of glucose to gluconic acid[J]. GREEN CHEMISTRY,2013,15(4):1035-1041.
APA	Ma, Chunyan,Xue, Wenjuan,Li, Jinjun,Xing, Wei,&Hao, Zhengping.(2013).Mesoporous carbon-confined Au catalysts with superior activity for selective oxidation of glucose to gluconic acid.GREEN CHEMISTRY,15(4),1035-1041.
MLA	Ma, Chunyan,et al."Mesoporous carbon-confined Au catalysts with superior activity for selective oxidation of glucose to gluconic acid".GREEN CHEMISTRY 15.4(2013):1035-1041.