Enhancing the catalytic activity of Ru NPs deposited with carbon species in yolk-shell nanostructures

doi:10.1039/c6ta03576k

	Enhancing the catalytic activity of Ru NPs deposited with carbon species in yolk-shell nanostructures
	Guo, Miao 1,2; Lan, Guojun 3; Peng, Juan 1,2; Li, Mingrun 1; Yang, Qihua 1; Li, Can 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2016
卷号	4 期号:28 页码:10956-10963
ISSN号	2050-7488
DOI	10.1039/c6ta03576k
文献子类	Article
英文摘要	The synthesis of metal NPs with a well-defined size, shape and composition provides opportunities for tuning the catalytic performance of metal NPs. However, the presence of a stabilizer on the metal surface always blocks the active sites of metal NPs. Herein, we report an efficient method to remove the stabilizer on the metal surface via H-2 pyrolysis with Ru-poly(amindoamine) encapsulated in silica-based yolk-shell nanostructures as an example. The CO uptake amount of Ru NPs increases sharply after H-2 pyrolysis, indicating that the exposure degree of Ru NPs is increased. No aggregation of the colloidal Ru NPs occurs after H-2 pyrolysis, which could be mainly assigned to the protection effect of C and N species formed on Ru NPs. The overall activity of Ru NPs in the yolk-shell nanostructure after the pyrolysis could reach as high as 20 300 mmol per mmol Ru per h in the hydrogenation of toluene, which is much higher than that of most reported Ru-based solid catalysts. It was found that the yolk-shell nanostructure could efficiently prevent the leaching of Ru NPs during the catalytic process. Ru NPs in the yolk-shell nanostructure could also catalyze the hydrogenation of benzoic acid and Levulinic acid with high activity and selectivity.
WOS关键词	PERIODIC MESOPOROUS ORGANOSILICA ; RUTHENIUM NANOPARTICLES ; BIMETALLIC CATALYSTS ; ARENE HYDROGENATION ; SILICA MICROSPHERES ; GOLD NANOPARTICLES ; AU NANOPARTICLES ; NANOCRYSTALS ; NANOSPHERES ; FABRICATION
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000379473100027
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/170392]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Yang, Qihua; Li, Can
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Zhejiang Univ Technol, Inst Ind Catalysis, Hangzhou 310014, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Guo, Miao,Lan, Guojun,Peng, Juan,et al. Enhancing the catalytic activity of Ru NPs deposited with carbon species in yolk-shell nanostructures[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(28):10956-10963.
APA	Guo, Miao,Lan, Guojun,Peng, Juan,Li, Mingrun,Yang, Qihua,&Li, Can.(2016).Enhancing the catalytic activity of Ru NPs deposited with carbon species in yolk-shell nanostructures.JOURNAL OF MATERIALS CHEMISTRY A,4(28),10956-10963.
MLA	Guo, Miao,et al."Enhancing the catalytic activity of Ru NPs deposited with carbon species in yolk-shell nanostructures".JOURNAL OF MATERIALS CHEMISTRY A 4.28(2016):10956-10963.