Hierarchical architectures of porous ZnS-based microspheres by assembly of heterostructure nanoflakes: lateral oriented attachment mechanism and enhanced photocatalytic activity

2011 ◽  
Vol 4 (9) ◽  
pp. 3652 ◽  
Author(s):  
Yaoguang Yu ◽  
Gang Chen ◽  
Qun Wang ◽  
Yingxuan Li
Keyword(s):  
Photocatalytic Activity ◽  
Oriented Attachment ◽  
Hierarchical Architectures ◽  
Attachment Mechanism

Controlled growth of BaMoO4 hierarchical superstructures in functionalized ionic liquids

2009 ◽  
Vol 81 (12) ◽  
pp. 2355-2367
Author(s):  
Zhijun Luo ◽  
Huaming Li ◽  
Sheng Yin ◽  
Jingtong Zhang ◽  
Kun Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquids ◽  
Alkyl Chain ◽  
Building Blocks ◽  
Oriented Attachment ◽  
Molar Ratio ◽  
Helical Growth ◽  
Hierarchical Architectures ◽  
Attachment Mechanism ◽  
Growth Features

Dual-functionalized ionic liquids (ILs) containing both functionalized cation and anion offer scope for tuning of nucleation and growth steps to achieve crystallographic control. BaMoO4 crystals synthesized in alkyl methylimidazolium trifluoroacetate ([Cnmim]TA, n = 4, 8, 16) aqueous solution display the similar shuttle-like shape. The size of building blocks assembling into the hierarchical architectures has been influenced by the inhibiting effect of the imidazolium substituent alkyl chain. With the increase of imidazolium substituent alkyl chain length, the building blocks change from the truncated octahedron to the nanosheet. The single-crystalline BaMoO4 dendrites were prepared under the direction of [Omim]TA via the oriented attachment mechanism. BaMoO4 porous structures have been successfully synthesized in the [Omim]TA aqueous solution via the manipulation of the growth kinetics. Whether the resultant holes in the BaMoO4 structure are open or clogged depends upon variations in the molar ratio [Ba2+]/[Mo7O246–]. Shuttle-like BaMoO4 crystals made of nanosheets with the helical growth features have been successfully synthesized in the presence of [C16mim]TA. In addition, the amount of [C16mim]TA in the solution profoundly influences the morphology and size of the as-obtained products.

Self-Assembly of KxWO3 Nanowires into Nanosheets by an Oriented Attachment Mechanism

2013 ◽  
Vol 5 (20) ◽  
pp. 10346-10351 ◽  
Author(s):  
Shuangfeng Jia ◽  
He Zheng ◽  
Hongqian Sang ◽  
Wenjing Zhang ◽  
Han Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Oriented Attachment ◽  
Attachment Mechanism

scholarly journals Ultrathin SnO2 Nanosheets: Oriented Attachment Mechanism, Nonstoichiometric Defects, and Enhanced Lithium-Ion Battery Performances

2012 ◽  
Vol 116 (6) ◽  
pp. 4000-4011 ◽  
Author(s):  
Cen Wang ◽  
Gaohui Du ◽  
Kenny Ståhl ◽  
Haixiao Huang ◽  
Yijun Zhong ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Oriented Attachment ◽  
Attachment Mechanism

scholarly journals Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method

2014 ◽  
Vol 5 ◽  
pp. 639-650 ◽  
Author(s):  
Sini Kuriakose ◽  
Vandana Choudhary ◽  
Biswarup Satpati ◽  
Satyabrata Mohapatra
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Activity ◽  
Chemical Method ◽  
Hybrid Nanostructures ◽  
Oriented Attachment ◽  
Plasmonic Nanostructures ◽  
Ag Nanoparticle ◽  
Wet Chemical Method ◽  
Citrate Concentration ◽  
Wet Chemical

We report the synthesis of Ag–ZnO hybrid plasmonic nanostructures with enhanced photocatalytic activity by a facile wet-chemical method. The structural, optical, plasmonic and photocatalytic properties of the Ag–ZnO hybrid nanostructures were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), photoluminescence (PL) and UV–visible absorption spectroscopy. The effects of citrate concentration and Ag nanoparticle loading on the photocatalytic activity of Ag–ZnO hybrid nanostructures towards sun-light driven degradation of methylene blue (MB) have been investigated. Increase in citrate concentration has been found to result in the formation of nanodisk-like structures, due to citrate-assisted oriented attachment of ZnO nanoparticles. The decoration of ZnO nanostructures with Ag nanoparticles resulted in a significant enhancement of the photocatalytic degradation efficiency, which has been found to increase with the extent of Ag nanoparticle loading.

Oriented Attachment Mechanism in Anisotropic Nanocrystals: A “Polymerization” Approach

ChemPhysChem ◽  
2006 ◽  
Vol 7 (3) ◽  
pp. 664-670 ◽  
Author(s):  
Caue Ribeiro ◽  
Eduardo J. H. Lee ◽  
Elson Longo ◽  
Edson R. Leite
Keyword(s):  
Oriented Attachment ◽  
Attachment Mechanism

Bifunctional electrocatalytic CoNi-doped manganese oxide produced from microdumbbell manganese carbonate towards oxygen reduction and oxygen evolution reactions

2018 ◽  
Vol 2 (6) ◽  
pp. 1170-1177 ◽  
Author(s):  
Harnchana Gatemala ◽  
Soracha Kosasang ◽  
Montree Sawangphruk
Keyword(s):  
Manganese Oxide ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oriented Attachment ◽  
Manganese Carbonate ◽  
Attachment Mechanism

Manganese carbonate microdumbbells grown via an oriented attachment mechanism were employed as a template for producing a bifunctional Co/Ni-doped MnO2 electrocatalyst towards the ORR/OER.

Controllable synthesis, characterization and photoluminescence properties of flower-like BaMoO4 hierarchical architectures

CrystEngComm ◽  
2020 ◽  
Vol 22 (18) ◽  
pp. 3115-3121 ◽  
Author(s):  
YuQin Mao ◽  
JianGang Wei ◽  
Yongjin Zou ◽  
LuPing Zhu
Keyword(s):  
Ostwald Ripening ◽  
Solvothermal Method ◽  
Oriented Attachment ◽  
Photoluminescence Properties ◽  
Controllable Synthesis ◽  
Hierarchical Architectures ◽  
Facile Solvothermal Method ◽  
Ostwald Ripening Mechanism

Flower-like BaMoO4 hierarchical architectures were prepared by a facile solvothermal method. A nucleation–oriented attachment–assembly–Ostwald ripening mechanism is presented for the formation of the BaMoO4 samples.

A Kinetic Model to Describe Nanocrystal Growth by the Oriented Attachment Mechanism

ChemPhysChem ◽  
2005 ◽  
Vol 6 (4) ◽  
pp. 690-696 ◽  
Author(s):  
Caue Ribeiro ◽  
Eduardo J. H. Lee ◽  
Elson Longo ◽  
Edson R. Leite
Keyword(s):  
Kinetic Model ◽  
Oriented Attachment ◽  
Nanocrystal Growth ◽  
Attachment Mechanism

A facile route for the synthesis of heterogeneous crystal structures in hierarchical architectures with vacancy-driven defects via the oriented attachment growth mechanism

2018 ◽  
Vol 6 (23) ◽  
pp. 10663-10673 ◽  
Author(s):  
Li Cheng Kao ◽  
Yifan Ye ◽  
Yi-Sheng Liu ◽  
Chung Li Dong ◽  
Jinghua Guo ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Growth Mechanism ◽  
Large Scale ◽  
Oriented Attachment ◽  
Nanorod Arrays ◽  
One Dimensional ◽  
Nano Structures ◽  
Hierarchical Architectures ◽  
Tunable Morphology ◽  
Facile Route

One-dimensional rutile TiO2 nanorod arrays with a tunable morphology and intact crystalline sub-nano structures attached are successfully fabricated as a large-scale film based on substrates.

EMULSION-ASSISTED SYNTHESIS OF NICKEL SULFIDE HIERARCHICAL ARCHITECTURES

2009 ◽  
Vol 23 (31n32) ◽  
pp. 3843-3849 ◽  
Author(s):  
PAI LU ◽  
DONGFENG XUE
Keyword(s):  
Electron Microscope ◽  
Sodium Dodecyl Sulfate ◽  
Scanning Electron Microscope ◽  
Nickel Sulfide ◽  
Sodium Dodecyl ◽  
Oriented Attachment ◽  
Hierarchical Nanostructures ◽  
Microscope Images ◽  
Hierarchical Architectures ◽  
Scanning Electron

We herein demonstrated the preparation of nickel sulfide hierarchical architectures via an emulsion-assisted route in hydrothermal system. Scanning electron microscope images of the products at different reaction stages indicated that the construction of the nanostructured hierarchical nickel sulfide was accomplished through oriented attachment accompanied by an encapsulation procedure, and the as-obtained products exhibited uniform architectures assembled by various primary units (e.g. nanorods, nanosheets). In addition, the effect of different surfactants on the shape of nickel sulfide nanostructures was further studied. The results indicated that the hierarchical architectures can only be achieved with the assistance of anionic surfactant (e.g. sodium dodecyl sulfate). These as-prepared novel hierarchical nanostructures may be used in various areas, including industrial catalysis, and energy storage etc.

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