Evolution of Structure and Chemistry of Bimetallic Nanoparticle Catalysts under Reaction Conditions

2010 ◽  
Vol 132 (25) ◽  
pp. 8697-8703 ◽  
Author(s):  
Feng Tao ◽  
Michael E. Grass ◽  
Yawen Zhang ◽  
Derek R. Butcher ◽  
Funda Aksoy ◽  
...  
Keyword(s):  
Reaction Conditions ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle ◽  
Evolution Of Structure

Synthesis of Bimetallic AuPt Nanoparticles in Aqueous Solution and Electrocatalytic Activity

2005 ◽  
Vol 900 ◽  
Author(s):  
Peter N. Njoki ◽  
Jin Luo ◽  
Aisley Jacob ◽  
Rizwan Munawar ◽  
Bilal Khan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electrocatalytic Activity ◽  
Bimetallic Nanoparticles ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Morphological Properties ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle

ABSTRACTThe ability to control composition and size in the synthesis of bimetallic nanoparticles is important for the exploitation of the bimetallic catalytic properties. This paper reports recent findings of an investigation of the synthesis of gold-platinum (AuPt) bimetallic nanoparticles in aqueous solution via reduction of AuCl4− and PtCl42− using a combination of reducing and capping agents. In addition to characterization of the morphological properties of the AuPt nanoparticles using TEM and XRD, the electrocatalytic activity of the carbon-supported AuPt nanoparticle catalysts was also examined for oxygen reduction reaction (ORR) using the rotating disk electrode (RDE) technique. The findings have implications to the design of bimetallic nanoparticle catalysts for fuel cell reactions.

Benign by design. New catalysts for an environmentally conscious age

2001 ◽  
Vol 73 (7) ◽  
pp. 1087-1101 ◽  
Author(s):  
John Meurig Thomas ◽  
Robert Raja ◽  
Gopinathan Sankar ◽  
Robert G. Bell ◽  
Dewi W. Lewis
Keyword(s):  
Sustainable Development ◽  
Screening Methods ◽  
Reaction Conditions ◽  
Environmentally Conscious ◽  
Nanoparticle Catalysts ◽  
Fast Screening ◽  
Linear Alkanes ◽  
One Step ◽  
Acid Precursor

There is a pressing need for: (i) cleaner fuels (free of aromatics and of minimal sulfur content) or ones that convert chemical energy directly to electricity, silently and without production of noxious oxides and particulates; (ii) chemical, petrochemical, and pharmaceutical processes that may be conducted in a one-step, solvent-free manner, and that use air as the preferred oxidant; and (iii) industrial processes that minimize consumption of energy, production of waste or the use of corrosive, explosive, volatile and nonbiodegradable materials. All these needs and other desiderata, such as the in situ production and containment of aggressive and hazardous reagents, and the avoidance of use of ecologically harmful elements, may be achieved by designing the appropriate heterogeneous inorganic catalyst, which, ideally should be cheap, readily preparable, and fully characterizable, preferably under in situ reaction conditions. A range of nanoporous and nanoparticle catalysts, designed, synthesized, characterized, and tested by the authors and their colleagues, that meet most of the stringent demands of sustainable development and responsible (clean) technology is described. Specific examples that are highlighted include: (a) the production of adipic acid (precursor of polyamides and urethanes) without the use of concentrated nitric acid or the production of greenhouse gases such as nitrous oxide; (b) the production of caprolactam (precursor of nylon) without the use of oleum and hydroxylamine sulfate; and (c) the terminal oxyfunctionalization of linear alkanes in air. The topic of biocatalysis and sustainable development is also briefly discussed, and a cautionary note is sounded concerning fast screening methods for the discovery of new inorganic catalysts.

scholarly journals The selective hydrogenation of furfural over supported palladium nanoparticle catalysts prepared by sol-immobilisation: effect of catalyst support and reaction conditions

2018 ◽  
Vol 8 (1) ◽  
pp. 252-267 ◽  
Author(s):  
Reem Albilali ◽  
Mark Douthwaite ◽  
Qian He ◽  
Stuart H. Taylor
Keyword(s):  
Selective Hydrogenation ◽  
Catalyst Support ◽  
Palladium Nanoparticle ◽  
Reaction Conditions ◽  
Nanoparticle Catalysts ◽  
Mild Conditions ◽  
Supported Palladium

Pd-TiO2 nanoparticles prepared by sol-immobilisation are very active for selective hydrogenation of furfural under mild conditions, and addition of Pt enhances performance to achieve a 95% yield of tetrahydrofurfuryl alcohol.

Aqueous Phase Glycerol Reforming with Pt and PtMo Bimetallic Nanoparticle Catalysts: The Role of the Mo Promoter

2013 ◽  
Vol 56 (18-20) ◽  
pp. 1814-1828 ◽  
Author(s):  
Paul J. Dietrich ◽  
Tianpin Wu ◽  
Aslihan Sumer ◽  
James A. Dumesic ◽  
Julius Jellinek ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle ◽  
Glycerol Reforming

Simple Route for the Synthesis of Highly Active Bimetallic Nanoparticle Catalysts with Immiscible Ru and Ni Combination by utilizing a TiO2 Support

ChemCatChem ◽  
2018 ◽  
Vol 10 (16) ◽  
pp. 3526-3531 ◽  
Author(s):  
Shinya Masuda ◽  
Kohsuke Mori ◽  
Taiki Sano ◽  
Kohei Miyawaki ◽  
Wei-Hung Chiang ◽  
...  
Keyword(s):  
Simple Route ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle ◽  
Highly Active ◽  
Tio2 Support

scholarly journals Computationally Assisted STEM and EXAFS Characterization of Tunable Rh/Au and Rh/Ag Bimetallic Nanoparticle Catalysts

2017 ◽  
Vol 23 (S1) ◽  
pp. 2030-2031 ◽  
Author(s):  
Stephen D. House ◽  
Cecile S. Bonifacio ◽  
Janis Timoshenko ◽  
Pranaw Kunal ◽  
Haiqin Wan ◽  
...  
Keyword(s):  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle

Monodisperse Metal Nanoparticle Catalysts: Synthesis, Characterizations, and Molecular Studies Under Reaction Conditions

2012 ◽  
Vol 55 (19-20) ◽  
pp. 1257-1275 ◽  
Author(s):  
Vladimir V. Pushkarev ◽  
Zhongwei Zhu ◽  
Kwangjin An ◽  
Antoine Hervier ◽  
Gabor A. Somorjai
Keyword(s):  
Metal Nanoparticle ◽  
Reaction Conditions ◽  
Nanoparticle Catalysts ◽  
Molecular Studies

Effect of SnxPty Alloy Structures in SnPt Bimetallic Nanoparticle Catalysts on Catalytic Activity for Hydrogenation of Acetic Acid

2020 ◽  
Vol 53 (8) ◽  
pp. 383-388
Author(s):  
Keita Taniya ◽  
Hiromu Takado ◽  
Hiroaki Ito ◽  
Takafumi Horie ◽  
Yuichi Ichihashi ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Catalytic Activity ◽  
Nanoparticle Catalysts ◽  
Bimetallic Nanoparticle
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