Bimetallic Nanocrystals: Growth Models and Controlled Synthesis

2014 ◽  
pp. 75-105
Author(s):  
Zhenni Wang ◽  
Mingshang Jin
Keyword(s):  
Growth Models ◽  
Controlled Synthesis ◽  
Bimetallic Nanocrystals

scholarly journals Bimetallic Nanocrystals: Structure, Controllable Synthesis and Applications in Catalysis, Energy and Sensing

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1926
Author(s):  
Gaojie Li ◽  
Wenshuang Zhang ◽  
Na Luo ◽  
Zhenggang Xue ◽  
Qingmin Hu ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Chemical Properties ◽  
Research Progress ◽  
Synthesis Methods ◽  
Controlled Synthesis ◽  
Controllable Synthesis ◽  
Composition And Structure ◽  
Bimetallic Nanocrystals ◽  
Physical And Chemical ◽  
And Chemical Properties

In recent years, bimetallic nanocrystals have attracted great interest from many researchers. Bimetallic nanocrystals are expected to exhibit improved physical and chemical properties due to the synergistic effect between the two metals, not just a combination of two monometallic properties. More importantly, the properties of bimetallic nanocrystals are significantly affected by their morphology, structure, and atomic arrangement. Reasonable regulation of these parameters of nanocrystals can effectively control their properties and enhance their practicality in a given application. This review summarizes some recent research progress in the controlled synthesis of shape, composition and structure, as well as some important applications of bimetallic nanocrystals. We first give a brief introduction to the development of bimetals, followed by the architectural diversity of bimetallic nanocrystals. The most commonly used and typical synthesis methods are also summarized, and the possible morphologies under different conditions are also discussed. Finally, we discuss the composition-dependent and shape-dependent properties of bimetals in terms of highlighting applications such as catalysis, energy conversion, gas sensing and bio-detection applications.

scholarly journals Near-Monodisperse Ni−Cu Bimetallic Nanocrystals of Variable Composition: Controlled Synthesis and Catalytic Activity for H2 Generation

2008 ◽  
Vol 112 (32) ◽  
pp. 12092-12095 ◽  
Author(s):  
Yawen Zhang ◽  
Wenyu Huang ◽  
Susan E. Habas ◽  
John N. Kuhn ◽  
Michael E. Grass ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Variable Composition ◽  
Controlled Synthesis ◽  
H2 Generation ◽  
Bimetallic Nanocrystals

Morphology control of bimetallic nanostructures for electrochemical catalysts

2013 ◽  
Vol 2 (5) ◽  
pp. 487-514 ◽  
Author(s):  
Weiqing Zhang ◽  
Xianmao Lu
Keyword(s):  
Oxygen Reduction ◽  
Catalytic Properties ◽  
Precious Metals ◽  
Catalytic Reactions ◽  
Controlled Synthesis ◽  
Hollow Structures ◽  
Bimetallic Nanocrystals ◽  
Different Shapes ◽  
Bimetallic Nanostructures ◽  
Electrochemical Catalysts

AbstractBimetallic nanostructures with well-defined shapes have shown distinct and advantageous catalytic properties compared to their monometallic counterparts. The use of bimetallic electrocatalysts may improve activity and durability, in addition to the possibility of reducing the loading of precious metals. A variety of bimetallic nanocrystals with different shapes has been reported in recent years. Their activities toward electrochemical catalytic reactions such as oxygen reduction and alcohol oxidations have been intensively studied. In this review, we discuss some latest developments in the morphology-controlled synthesis of Pt- and Pd-based bimetallic nanocrystals with shapes such as nanodendrites, polyhedra, porous hollow structures, and core shells, as well as their applications as electrochemical catalysts.

Shape-controlled synthesis of Au–Pd bimetallic nanocrystals for catalytic applications

2016 ◽  
Vol 45 (14) ◽  
pp. 3916-3934 ◽  
Author(s):  
Lei Zhang ◽  
Zhaoxiong Xie ◽  
Jinlong Gong
Keyword(s):  
Recent Progress ◽  
Controlled Synthesis ◽  
Design And Synthesis ◽  
Bimetallic Nanocrystals ◽  
Shape Controlled ◽  
Catalytic Applications

This review describes recent progress in the design and synthesis of shape-controlled Au–Pd bimetallic NCs and their emerging catalytic applications.

Facile controlled synthesis of AuPd and AuPt bimetallic nanocrystals for enhanced electrocatalytic sensing

2019 ◽  
Vol 298 ◽  
pp. 126724 ◽  
Author(s):  
Tingting Chen ◽  
Jinqiong Xu ◽  
Pingping Yang ◽  
Qinglin Sheng ◽  
Jianbin Zheng ◽  
...  
Keyword(s):  
Controlled Synthesis ◽  
Bimetallic Nanocrystals

scholarly journals Controlled Synthesis and Characterization of Bimetallic Nanocrystals

2011 ◽  
Vol 17 (S2) ◽  
pp. 1624-1625
Author(s):  
J Wang ◽  
B Lim ◽  
H Kobayashi ◽  
H Zhang ◽  
Y Xia ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Controlled Synthesis ◽  
Bimetallic Nanocrystals

Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.

Seeded Growth of Single-Crystal Two-Dimensional Covalent Organic Frameworks

2017 ◽  
Author(s):  
Austin M. Evans ◽  
Lucas R. Parent ◽  
Nathan C. Flanders ◽  
Ryan P. Bisbey ◽  
Edon Vitaku ◽  
...  
Keyword(s):  
Molecular Transport ◽  
Controlled Synthesis ◽  
Two Dimensional ◽  
Covalent Organic Frameworks ◽  
Seeded Growth ◽  
Covalent Bonds ◽  
Crystalline Materials ◽  
Step Procedure ◽  
Structures And Properties ◽  
2D Polymer

<div> <div> <div> <p>Polymerizing monomers into periodic two-dimensional (2D) networks provides structurally precise, atomically thin macromolecular sheets linked by robust, covalent bonds. These materials exhibit desirable mechanical, optoelectrotronic, and molecular transport properties derived from their designed structure and permanent porosity. 2D covalent organic frameworks (COFs) offer broad monomer scope, but are generally isolated as polycrystalline, insoluble powders with limited processability. Here we overcome this limitation by controlling 2D COF formation using a two- step procedure. In the first step, 2D COF nanoparticle seeds are prepared with approximate diameters of 30 nm. Next, monomers are slowly added to suppress new nucleation while promoting epitaxial growth on the existing seeds to sizes of several microns. The resulting COF nanoparticles are of exceptional and unprecedented quality, isolated as single crystalline materials with micron-scale domain sizes. These findings advance the controlled synthesis of 2D layered COFs and will enable a broad exploration of synthetic 2D polymer structures and properties. </p> </div> </div> </div>

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