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Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts
Zhu, Yifeng1,2; Kong, Xiao3; Yin, Junqing1; You, Rui4; Zhang, Bin1; Zheng, Hongyan5; Wen, Xiaodong1,5; Zhu, Yulei1,5; Li, Yong-Wang1,5
关键词Heterogeneous Catalysis Hydrogenation Metal Oxides Covalent Bonding Silica Sio2
刊名JOURNAL OF CATALYSIS
2017-09-01
DOI10.1016/j.jcat.2017.07.030
353页:315-324
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000410468300035
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150020
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Nanjing Agr Univ, Coll Engn, Nanjing 210031, Jiangsu, Peoples R China
4.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
5.Synfuels China Co Ltd, Beijing 101407, Peoples R China
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GB/T 7714
Zhu, Yifeng,Kong, Xiao,Yin, Junqing,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, Yifeng.,Kong, Xiao.,Yin, Junqing.,You, Rui.,Zhang, Bin.,...&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, Yifeng,et al."Covalent-bonding to irreducible SiO2 leads to high-loading and atomically dispersed metal catalysts".JOURNAL OF CATALYSIS 353(2017):315-324.
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