ChemInform Abstract: Metal Nanoclusters: Size-Controlled Synthesis and Size- Dependent Catalytic Activity

ChemInform ◽  
2015 ◽  
Vol 46 (49) ◽  
pp. no-no
Author(s):  
Yizhong Lu ◽  
Wei Chen
Keyword(s):  
Catalytic Activity ◽  
Controlled Synthesis ◽  
Metal Nanoclusters ◽  
Size Dependent ◽  
Size Controlled

scholarly journals Simple size-controlled synthesis of Au nanoparticles and their size-dependent catalytic activity

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Petr Suchomel ◽  
Libor Kvitek ◽  
Robert Prucek ◽  
Ales Panacek ◽  
Avik Halder ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Controlled Synthesis ◽  
Size Dependent ◽  
Size Controlled

Highly Size-Controlled Synthesis of Metal Nanoclusters by Inert-Gas Condensation for Nano-Devices

2010 ◽  
Vol 10 (5) ◽  
pp. 3667-3670 ◽  
Author(s):  
Il-Suk Kang ◽  
Hyun-Sang Seo ◽  
Deuk-Han Kim ◽  
Taek-Yeong Lee ◽  
Jun-Mo Yang ◽  
...  
Keyword(s):  
Inert Gas ◽  
Controlled Synthesis ◽  
Metal Nanoclusters ◽  
Gas Condensation ◽  
Inert Gas Condensation ◽  
Size Controlled

scholarly journals Size controlled green synthesis of gold nanoparticles using Coffea arabica seed extract and their catalytic performance in 4-nitrophenol reduction

RSC Advances ◽  
2018 ◽  
Vol 8 (44) ◽  
pp. 24819-24826 ◽  
Author(s):  
N. K. R. Bogireddy ◽  
U. Pal ◽  
L. Martinez Gomez ◽  
V. Agarwal
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Green Synthesis ◽  
Coffea Arabica ◽  
Room Temperature ◽  
Catalytic Performance ◽  
Seed Extract ◽  
Size Dependent ◽  
Nitrophenol Reduction ◽  
Size Controlled

Size dependent catalytic activity of AuNPs synthesized at room temperature from Coffea arabica seed extract.

scholarly journals Size-controlled synthesis of Cu2O nanoparticles: size effect on antibacterial activity and application as a photocatalyst for highly efficient H2O2 evolution

RSC Advances ◽  
2017 ◽  
Vol 7 (82) ◽  
pp. 51822-51830 ◽  
Author(s):  
Liangbin Xiong ◽  
Huaqing Yu ◽  
Changjiang Nie ◽  
Yongjun Xiao ◽  
Qingdong Zeng ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Size Effect ◽  
High Efficiency ◽  
Controlled Synthesis ◽  
Size Dependent ◽  
Highly Efficient ◽  
Cu2o Nanoparticles ◽  
Size Controlled

Size-controlled synthesis and size-dependent antibacterial activity of Cu2O nanoparticles with high efficiency for H2O2 evolution.

scholarly journals Blurring the boundary between homogenous and heterogeneous catalysis using palladium nanoclusters with dynamic surfaces

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Israel Cano ◽  
Andreas Weilhard ◽  
Carmen Martin ◽  
Jose Pinto ◽  
Rhys W. Lodge ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysts ◽  
Kinetic Studies ◽  
Catalyst Poisoning ◽  
Metal Nanoclusters ◽  
Dynamic Surface ◽  
Atomic Structures ◽  
Combined Features ◽  
Electronic Environments ◽  
Size Controlled

AbstractUsing a magnetron sputtering approach that allows size-controlled formation of nanoclusters, we have created palladium nanoclusters that combine the features of both heterogeneous and homogeneous catalysts. Here we report the atomic structures and electronic environments of a series of metal nanoclusters in ionic liquids at different stages of formation, leading to the discovery of Pd nanoclusters with a core of ca. 2 nm surrounded by a diffuse dynamic shell of atoms in [C4C1Im][NTf2]. Comparison of the catalytic activity of Pd nanoclusters in alkene cyclopropanation reveals that the atomically dynamic surface is critically important, increasing the activity by a factor of ca. 2 when compared to compact nanoclusters of similar size. Catalyst poisoning tests using mercury and dibenzo[a,e]cyclooctene show that dynamic Pd nanoclusters maintain their catalytic activity, which demonstrate their combined features of homogeneous and heterogeneous catalysts within the same material. Additionally, kinetic studies of cyclopropanation of alkenes mediated by the dynamic Pd nanoclusters reveal an observed catalyst order of 1, underpinning the pseudo-homogeneous character of the dynamic Pd nanoclusters.

Size-Controlled Synthesis of CuNi Nano-Octahedra and Their Catalytic Performance towards 4-Nitrophenol Reduction Reaction

MRS Advances ◽  
2019 ◽  
Vol 4 (5-6) ◽  
pp. 263-269 ◽  
Author(s):  
Can Li ◽  
Yiliang Luan ◽  
Bo Zhao ◽  
Amar Kumbhar ◽  
Jiye Fang
Keyword(s):  
Catalytic Performance ◽  
Reduction Reaction ◽  
Controlled Synthesis ◽  
Solution Approach ◽  
Size Dependent ◽  
Surface Areas ◽  
Nitrophenol Reduction ◽  
Crystallographic Planes ◽  
Size Controlled ◽  
Octahedral Nanocrystals

ABSTRACTIn this work, we demonstrate a size-controlled synthesis of CuNi octahedral nanocrystals (NCs) using a hot colloidal solution approach. Two different sizes of CuNi nano-octahedra are chosen and investigated. It is determined that the reagent concentration remarkably plays a key role in the formation of the size-defined CuNi octahedral NCs. In terms of the reduction of 4-nitrophenol (4-NP), it uncovers that the obtained CuNi octahedral NCs (in both sizes) exhibit higher catalytic activity than those of CuNi spherical NCs reported previously. It further indicates that the catalytic performance is strongly size-dependent due to their devise specific surface areas of the exposed crystallographic planes.

Size-controlled atomically precise copper nanoclusters: Synthetic protocols, spectroscopic properties and applications

2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Nirmal Kumar Das ◽  
Saptarshi Mukherjee
Keyword(s):  
Noble Metal ◽  
Visible Spectrum ◽  
Spectroscopic Properties ◽  
Metal Nanoclusters ◽  
Conduction Electrons ◽  
Size Dependent ◽  
New Class ◽  
Metal Atoms ◽  
Spectroscopic Signatures ◽  
Size Controlled

Abstract Noble metal nanoclusters (NCs) are a new class of nanomaterials which are considered being a missing link between isolated metal atoms and metal nanoparticles (NPs). The sizes of the NCs are comparable to the Fermi wavelength of the conduction electrons, and this renders them to be luminescent in nature. They exhibit size-dependent fluorescence properties spanning almost the entire breath of the visible spectrum. Among all the noble metal NCs being explored, copper NCs (CuNCs) are the most rarely investigated primarily because of their propensity of getting oxidised. In this chapter, we have given a comprehensive understanding as to why these NCs are luminescent in nature. We have also given a detailed overview regarding the various templates used for the synthesis of these CuNCs along with the respective protocols being followed. The various instrumental techniques used to characterize these CuNCs are discussed which provides an in-depth understanding as to how these CuNCs can be properly examined. Finally, we have highlighted some of the most recent applications of these CuNCs which make them unique to serve as the next-generation fluorophores. Graphical Abstract: The Graphical Abstract highlights some of the key spectroscopic signatures of the CuNCs and their applications.

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