Asymmetric tungsten oxide nanobrushes via oriented attachment and Ostwald ripening

CrystEngComm ◽  
2011 ◽  
Vol 13 (12) ◽  
pp. 4074 ◽  
Author(s):  
Aswani Yella ◽  
Ujjal K. Gautam ◽  
Enrico Mugnaioli ◽  
Martin Panthöfer ◽  
Yoshio Bando ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Ostwald Ripening ◽  
Oriented Attachment

Construction of EuF3 hollow sub-microspheres and single-crystal hexagonal microdiscs via Ostwald ripening and oriented attachment

CrystEngComm ◽  
2009 ◽  
Vol 11 (8) ◽  
pp. 1591 ◽  
Author(s):  
Zhiming Chen ◽  
Zhirong Geng ◽  
Menglu Shi ◽  
Zhihui Liu ◽  
Zhilin Wang
Keyword(s):  
Single Crystal ◽  
Ostwald Ripening ◽  
Oriented Attachment

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.

Hyperbranched crystalline nanostructure produced from ionic π-conjugated molecules

2015 ◽  
Vol 51 (13) ◽  
pp. 2663-2666 ◽  
Author(s):  
Jeremy R. Eskelsen ◽  
Kara J. Phillips ◽  
K. W. Hipps ◽  
Ursula Mazur
Keyword(s):  
Organic Semiconductors ◽  
Self Assembly ◽  
Ostwald Ripening ◽  
Oriented Attachment ◽  
Growth Mechanisms ◽  
Conjugated Molecules

We report the first synthesis of a hyperbranched sheaf-like nanostructure by ionic self-assembly of organic semiconductors that forms via combined oriented attachment and Ostwald ripening growth mechanisms.

Formation of quasi-mesocrystal ZnMn2O4 twin microspheres via an oriented attachment for lithium-ion batteries

2014 ◽  
Vol 2 (34) ◽  
pp. 14236-14244 ◽  
Author(s):  
Yurong Liu ◽  
Jing Bai ◽  
Xiaojian Ma ◽  
Jingfa Li ◽  
Shenglin Xiong
Keyword(s):  
Lithium Ion Batteries ◽  
Ostwald Ripening ◽  
Lithium Ion ◽  
Oriented Attachment ◽  
First Time

Quasi-mesocrystal ZnMn2O4 twin microspheres have been successfully prepared for the first time based on a distinctive oriented attachment accompanied by Ostwald ripening.

Microwave-assisted hydrothermal synthesis of cobalt phosphide nanostructures for advanced supercapacitor electrodes

CrystEngComm ◽  
2018 ◽  
Vol 20 (17) ◽  
pp. 2413-2420 ◽  
Author(s):  
Feng Liang ◽  
Liang Huang ◽  
Liang Tian ◽  
Junyi Li ◽  
Haijun Zhang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Electrochemical Performance ◽  
Hydrothermal Method ◽  
Ostwald Ripening ◽  
Oriented Attachment ◽  
Cobalt Phosphide ◽  
Microwave Assisted ◽  
First Time ◽  
Ostwald Ripening Mechanism

Co2P nanoshuttles which demonstrated remarkable electrochemical performance were synthesized for the first time by a microwave-assisted hydrothermal method. A combined oriented attachment and Ostwald ripening mechanism is proposed for the formation of Co2P nanoshuttles.

Hydrothermal Synthesis of CeO2Nanocrystals: Ostwald Ripening or Oriented Attachment?

2012 ◽  
Vol 12 (6) ◽  
pp. 3296-3303 ◽  
Author(s):  
Ming Lin ◽  
Zi Yuan Fu ◽  
Hui Ru Tan ◽  
Joyce Pei Ying Tan ◽  
Seng Chee Ng ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Ostwald Ripening ◽  
Oriented Attachment

scholarly journals Transport and coarsening of gold nanoparticles in an orogenic deposit by dissolution–reprecipitation and Ostwald ripening

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
E. C. G. Hastie ◽  
M. Schindler ◽  
D. J. Kontak ◽  
B. Lafrance
Keyword(s):  
Gold Nanoparticles ◽  
Focused Ion Beam ◽  
Ostwald Ripening ◽  
Ion Beam ◽  
Massive Sulfide ◽  
Gold Deposits ◽  
Oriented Attachment ◽  
High Grade ◽  
Transmission Electron ◽  
Primary Fluid

AbstractThe role of nanoparticle gold in the formation of gold deposits has long been debated. Evidence in support of this process is generally limited to epithermal-, Carlin- and seafloor massive-sulfide-type deposits where gold nanoparticles are associated with primary fluid related processes. At the Kenty orogenic deposit in Ontario, Canada, gold has been remobilized from early pyrite through secondary coupled dissolution-reprecipitation processes to form high-grade gold external to pyrite. Here we report gold nanoparticles and related textures that help document this gold coarsening process. A combination of focused ion beam technology and transmission electron microscopy provides a rare glimpse of gold coarsening frozen in time, which includes nanoparticles trapped in iron oxides and rutile and non-oriented attachment of gold nanoparticles to bulk gold suggesting coarsening via Ostwald ripening. The processes documented are applicable to orogenic deposits formed through Earth’s history, and may explain the formation of ultra high-grade ore zones.

scholarly journals pH-Dependent Formation of Oriented Zinc Oxide Nanostructures in the Presence of Tannic Acid

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Nurul Akmal Che Lah ◽  
Aqilah Kamaruzaman ◽  
Sonia Trigueros
Keyword(s):  
Electron Microscopy ◽  
Tannic Acid ◽  
Ostwald Ripening ◽  
Ph Effect ◽  
Oriented Attachment ◽  
Zno Nanostructures ◽  
Zinc Oxide Nanostructures ◽  
Transmission Electron ◽  
Strong Surface ◽  
Transition Surface

To crucially comprehend the relaying factors behind the growth mechanism of ZnO nanostructures, the needs to understand the cause of preferences in the enhancement of desired physicochemical properties are essential. The particular oriented attachment (OA) is believed to become the cause of the classical growth pattern of ZnO nanostructures which is mainly controlled by the Ostwald ripening (OR) process. In the present work, the concerns over the systematic changes in size and the morphological surface of ZnO nanostructures upon exposure to tannic acid (TA) prepared by drop-wise method turns the particles to different surface adjustment state. Here, we assessed the TA capping ability and its tendency to influence the OA process of the ZnO nanostructures. The detailed process of the growth-based TA system via transmission electron microscopy (TEM), scanning electron microscopy (SEM), and FFT autocorrelation revealed the pH effect on their physical properties which proved the transition surface properties state of the particles from rough to smooth states due to oriented attachment. For pure ZnO nanostructures, the surface is almost smooth owing to the strong bonding particles which are then changed to coarsened surface structures upon the introduction of TA. Strong surface adsorption of Zn cations and phenol ligands mediated the agglomerated nanocrystals, surprisingly with smaller nanostructures dimension.

Synthesis and Characterization of Titanate Nanotubes and Nanowires in a Revolving Autoclave

2011 ◽  
Vol 194-196 ◽  
pp. 497-502
Author(s):  
Xue Fei Li ◽  
Qing Ze Jiao ◽  
Yun Zhao ◽  
Han Sheng Li
Keyword(s):  
Crystal Structure ◽  
Ostwald Ripening ◽  
Titanate Nanotubes ◽  
Oriented Attachment ◽  
Synthesis And Characterization ◽  
Hydrothermal Temperature ◽  
One Dimensional ◽  
Nanotube Bundles ◽  
Naoh Solution

One-dimensional titanate nanotubes and nanowires were synthesized by hydrothermally treating TiO2 nanoparticles (P25) with an aqueous NaOH solution in a revolving autoclave. The effect of the reaction temperature and time on the morphology and crystal structure of titanate nanomaterials was systematically studied. When the hydrothermal treatment was carried out in a revolving autoclave, nanotubes with NaxH1-xTi2-x/4Υx/4O4•H2O crystal structure were obtained and favor to self-assemble in shape of clusters and bundles, and nanotube bundles tended to transform into nanowires with the crystal structure transforming into NaxH2-xTi3O7 within 48 h at a hydrothermal temperature higher than 130 °C. Based on the experimental results, a possible mechanism for the formation of titanate nanotube by wrapping of nanosheets and nanowires formed via the cooperation of oriented attachment and Ostwald ripening was proposed.

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