Sol-Flame Synthesis: A General Strategy To Decorate Nanowires with Metal Oxide/Noble Metal Nanoparticles

Nano Letters ◽  
2012 ◽  
Vol 13 (3) ◽  
pp. 855-860 ◽  
Author(s):  
Yunzhe Feng ◽  
In Sun Cho ◽  
Pratap M. Rao ◽  
Lili Cai ◽  
Xiaolin Zheng
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Flame Synthesis ◽  
General Strategy

scholarly journals Exterior and Internal Uniform Loading of Pt Nanoparticles on Yolk-Shell La2O3 by Acoustic Levitation Synthesis with Enhanced Photocatalytic Performance

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 107 ◽  
Author(s):  
Ming Qin ◽  
Qing Chang ◽  
Yinkai Yu ◽  
Hongjing Wu
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Shell Structure ◽  
Photocatalytic Performance ◽  
Chemical Interaction ◽  
Pt Nanoparticles ◽  
Noble Metal Nanoparticles ◽  
Homogeneous Distribution ◽  
Acoustic Levitation

By the deposition of noble metal nanoparticles on a metal oxide substrate with a specific micro-/nanostructure, namely, yolk-shell structure, a remarkable improvement in photocatalytic performance can be achieved by the composites. Nevertheless, noble metal nanoparticles only distribute on the surface shell of metal oxide substrates when the conventional wet-chemistry reduction approach is employed. Herein, we proposed a novel acoustic levitation synthesis of Pt nanoparticles deposited on yolk-shell La2O3. The composites not only displayed well-defined, homogeneous distribution of Pt NPs on the exterior shell of La2O3 and the interior La2O3 core, but an enhanced chemical interaction between Pt and La2O3. The unique structure not only can display improved photocatalytic degradation rate toward methyl orange, but also may show great potential in fields of hydrogen generation, environmental protection, etc. The novel acoustic levitation synthesis can supplement the methodology of synthesizing well dispersed noble metal oxides over the whole yolk-shell structure through noble metal NPs deposition method.

A General Approach to Mesoporous Metal Oxide Microspheres Loaded with Noble Metal Nanoparticles

2012 ◽  
Vol 124 (26) ◽  
pp. 6512-6516 ◽  
Author(s):  
Zhao Jin ◽  
Manda Xiao ◽  
Zhihong Bao ◽  
Peng Wang ◽  
Jianfang Wang
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Mesoporous Metal ◽  
Mesoporous Metal Oxide

Preparation, Functionality, and Application of Metal Oxide-coated Noble Metal Nanoparticles

2016 ◽  
Vol 16 (4) ◽  
pp. 1965-1990 ◽  
Author(s):  
Shuhua Liu ◽  
Michelle D. Regulacio ◽  
Si Yin Tee ◽  
Yin Win Khin ◽  
Choon Peng Teng ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles

A General Approach to Mesoporous Metal Oxide Microspheres Loaded with Noble Metal Nanoparticles

2012 ◽  
Vol 51 (26) ◽  
pp. 6406-6410 ◽  
Author(s):  
Zhao Jin ◽  
Manda Xiao ◽  
Zhihong Bao ◽  
Peng Wang ◽  
Jianfang Wang
Keyword(s):  
Metal Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Mesoporous Metal ◽  
Mesoporous Metal Oxide

scholarly journals In situ formation of mononuclear complexes by reaction-induced atomic dispersion of supported noble metal nanoparticles

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Siquan Feng ◽  
Xiangen Song ◽  
Yang Liu ◽  
Xiangsong Lin ◽  
Li Yan ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
High Surface ◽  
Volume Ratio ◽  
Noble Metal Nanoparticles ◽  
General Strategy ◽  
Metal Nanoclusters ◽  
Metal Site ◽  
Mononuclear Complexes

AbstractSupported noble metal nanoclusters and single-metal-site catalysts are inclined to aggregate into particles, driven by the high surface-to-volume ratio. Herein, we report a general method to atomically disperse noble metal nanoparticles. The activated carbon supported nanoparticles of Ru, Rh, Pd, Ag, Ir and Pt metals with loading up to 5 wt. % are completely dispersed by reacting with CH3I and CO mixture. The dispersive process of the Rh nanoparticle is investigated in depth as an example. The in-situ detected I• radicals and CO molecules are identified to promote the breakage of Rh-Rh bonds and the formation of mononuclear complexes. The isolated Rh mononuclear complexes are immobilized by the oxygen-containing functional groups based on the effective atomic number rule. The method also provides a general strategy for the development of single-metal-site catalysts for other applications.

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