Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts

	Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts
	Zhu, Yulei 3,4; Zhu, Yifeng 1,4; Kong, Xiao 5; Yin, Junqing 4; You, Rui 2; Zhang, Bin 4; Zheng, Hongyan 3; Wen, Xiaodong 3,4; Li, Yong-Wang 3,4
刊名	JOURNAL OF CATALYSIS
	2017-09-01
卷号	353 页码:315-324
关键词	Heterogeneous catalysis Hydrogenation Metal oxides Covalent bonding Silica SiO2
英文摘要	Being a suitable way for achieving the maximum efficiency of atoms, the atomically dispersed metals are playing an ever-increasingly important role in bridging heterogeneous and homogeneous catalysis. It is extremely challenging for dispersing metals in atomic-scales as the applicable high-loading catalysts for industry. The reducible and defective supports or metal surfaces are commonly chosen for anchoring the metals. We here report that atomically-dispersed but high-loading (15 wt%) metals were achieved by covalent-bonding to irreducible SiO2 (though silanol groups) which is realized by a simple urea hydrolysis assistant hydrothermal-deposition method. The Cu-O-Si bonding tailors the structural and electronic states of catalyst by maximum of atom efficiency and tuning electronic effects. The intrinsic performance of C=O hydrogenation was thus boosted by one- to two- orders-of-magnitude in comparison with impregnated and precipitated catalysts. The choices of metals include Cu, Zn, Ni, Co and Mn, showing potentials for a category of applied materials. (C) 2017 Elsevier Inc. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	ALPHA-QUARTZ SURFACE ; GENERATION VIBRATIONAL SPECTROSCOPY ; 1ST-PRINCIPLES MOLECULAR-DYNAMICS ; SINGLE-ATOM CATALYSTS ; AUGMENTED-WAVE METHOD ; WATER-GAS SHIFT ; CO OXIDATION ; CU CATALYSTS ; ULTRASOFT PSEUDOPOTENTIALS ; HETEROGENEOUS CATALYSIS
收录类别	SCI
语种	英语
WOS记录号	WOS:000410468300035
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/149920]
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
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China 3.Synfuels China Co Ltd, Beijing 101407, Peoples R China 4.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 5.Nanjing Agr Univ, Coll Engn, Nanjing 210031, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yulei,Zhu, Yifeng,Kong, Xiao,et al. Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts[J]. JOURNAL OF CATALYSIS,2017,353:315-324.
APA	Zhu, Yulei.,Zhu, Yifeng.,Kong, Xiao.,Yin, Junqing.,You, Rui.,...&Li, Yong-Wang.(2017).Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts.JOURNAL OF CATALYSIS,353,315-324.
MLA	Zhu, Yulei,et al."Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts".JOURNAL OF CATALYSIS 353(2017):315-324.