Synthesis and characterization of size controlled alloy nanoparticles

2019 ◽  
Vol 5 (3) ◽  
Author(s):  
Jingfang Zhang ◽  
Yifu Yu ◽  
Bin Zhang
Keyword(s):  
High Selectivity ◽  
Chemical Properties ◽  
Synthesis And Characterization ◽  
Alloy Nanoparticles ◽  
Future Perspectives ◽  
Key Factors ◽  
Preparation Methods ◽  
Precise Control ◽  
Size Controlled

Abstract Bimetallic and multimetallic alloy nanoparticles are emerging as a class of critical nanomaterials in electronic, optical and magnetic fields due to their unique physic-chemical properties. In particular, precise control of the nanoparticle size can endow them with broad versatility and high selectivity. This chapter reviews some tremendous achievements in the development of size controlled bimetallic and multimetallic alloy nanoparticles, with special emphasis on general preparation methods, characterization methodologies and instrumentation techniques. Some key factors and future perspectives on the development of size-controlled bimetallic and multimetallic alloy nanoparticles are also discussed.

Nanocrystals: The Preparation, Precise Control and Application Toward the Pharmaceutics and Food Industry

2018 ◽  
Vol 24 (21) ◽  
pp. 2425-2431 ◽  
Author(s):  
Cao Wu ◽  
Zhou Chen ◽  
Ya Hu ◽  
Zhiyuan Rao ◽  
Wangping Wu ◽  
...  
Keyword(s):  
Food Industry ◽  
Chemical Properties ◽  
Preparation Methods ◽  
Precise Control ◽  
Significant Process ◽  
Technology Applications ◽  
And Performance ◽  
Physical And Chemical ◽  
Analytical Technology ◽  
And Chemical Properties

Crystallization is a significant process employed to produce a wide variety of materials in pharmaceutical and food area. The control of crystal dimension, crystallinity, and shape is very important because they will affect the subsequent filtration, drying and grinding performance as well as the physical and chemical properties of the material. This review summarizes the special features of crystallization technology and the preparation methods of nanocrystals, and discusses analytical technology which is used to control crystal quality and performance. The crystallization technology applications in pharmaceutics and foods are also outlined. These illustrated examples further help us to gain a better understanding of the crystallization technology for pharmaceutics and foods.

Synthesis and characterization of size-controlled cobalt-ferrite-based ionic ferrofluids

2001 ◽  
Vol 225 (1-2) ◽  
pp. 37-40 ◽  
Author(s):  
P.C. Morais ◽  
V.K. Garg ◽  
A.C. Oliveira ◽  
L.P. Silva ◽  
R.B. Azevedo ◽  
...  
Keyword(s):  
Cobalt Ferrite ◽  
Synthesis And Characterization ◽  
Size Controlled

scholarly journals Recent Progress in the Synthesis and Characterization of Diarylethene-based MOFs

2014 ◽  
Vol 70 (a1) ◽  
pp. C1223-C1223
Author(s):  
Jason Benedict ◽  
Ian Walton ◽  
Dan Patel ◽  
Jordan Cox
Keyword(s):  
Chemical Properties ◽  
Building Blocks ◽  
Synthesis And Characterization ◽  
Next Generation ◽  
Design Synthesis ◽  
Thermally Induced ◽  
Potential Applications ◽  
External Stimuli ◽  
Physical And Chemical

Metal-organic Frameworks (MOFs) remain an extremely active area of research given the wide variety of potential applications and the enormous diversity of structures that can be created from their constituent building blocks. While MOFs are typically employed as passive materials, next-generation materials will exhibit structural and/or electronic changes in response to applied external stimuli including light, charge, and pH. Herein we present recent results in which advanced photochromic diarylethenes are combined with MOFs through covalent and non-covalent methods to create photo-responsive permanently porous crystalline materials. This presentation will describe the design, synthesis, and characterization of next-generation photo-switchable diarylethene based ligands which are subsequently used to photo-responsive MOFs. These UBMOF crystals are, by design, isostructural with previously reported non-photoresponsive frameworks which enables a systematic comparison of their physical and chemical properties. While the photoswitching of the isolated ligand in solution is fully reversible, the cycloreversion reaction is suppressed in the UBMOF single crystalline phase. Spectroscopic evidence for thermally induced cycloreversion will be presented, as well as a detailed analysis addressing the limits of X-ray diffraction techniques applied to these systems.

Size-controlled synthesis and characterization of fluorapatite nanocrystals in the presence of gelatin

2011 ◽  
Vol 209 (1-3) ◽  
pp. 9-14 ◽  
Author(s):  
Hongyou Wang ◽  
Kangning Sun ◽  
Aimin Li ◽  
Weili Wang ◽  
Pengfei Chui
Keyword(s):  
Synthesis And Characterization ◽  
Controlled Synthesis ◽  
Size Controlled

Synthesis and characterization of size-controlled silver nanowires

2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Pei Zhang ◽  
Shudong Lin ◽  
Jiwen Hu
Keyword(s):  
Optical Properties ◽  
Silver Nanowires ◽  
Synthetic Methods ◽  
Synthesis And Characterization ◽  
Electronic And Optical Properties ◽  
The Past ◽  
Crucial Effect ◽  
Recent Developments ◽  
Size Controlled

Abstract Silver nanowires (AgNWs) have attracted attentions form both academia and industry due to their outstanding electronic and optical properties. The AgNW-based devices for various uses were invented in recent years. It is well known that the sizes of AgNWs have a crucial effect on the performance of AgNW-based devices. However, how to synthesize AgNWs with controlled sizes is still unsolved. Researchers reported many methods to synthesize AgNWs with different sizes in the past decade. However, a review that focuses on the synthetic methods of AgNWs is very rare. The aim of this review is to summarize the recent developments that have been achieved with AgNWs, and many procedure details and results and discussions will be provided for practical use. Graphical Abstract:

Evidence for bicomponent fibers: A review

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 636-653
Author(s):  
Shufang Zhu ◽  
Xin Meng ◽  
Xu Yan ◽  
Shaojuan Chen
Keyword(s):  
Experimental Evidence ◽  
Structural Characteristics ◽  
Future Perspectives ◽  
Comprehensive Understanding ◽  
Preparation Methods ◽  
Bicomponent Fibers ◽  
Common Concern ◽  
Bicomponent Fiber

Abstract Recently, bicomponent fibers have been attracting much attention due to their unique structural characteristics and properties. A common concern was how to characterize a bicomponent fiber. In this review, we generally summarized the classification, structural characteristics, preparation methods of the bicomponent fibers, and focused on the experimental evidence for the identification of bicomponent fibers. Finally, the main challenges and future perspectives of bicomponent fibers and their characterization are provided. We hope that this review will provide readers with a comprehensive understanding of the design and characterization of bicomponent fibers.

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