Related Experiment Video
Updated: Jun 24, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Synthesis of Pt-Ru@PThB catalyst by gamma-irradiation and NaBH(4) as reducing agent
Jung-Ho Ryu1, Sung-Hee Jung, Kwang-Sik Sim
1Department of Chemistry, BK 21 NanoBiosensor Research Team, Hannam University, Daejeon 305-811, Republic of Korea.
Abstract:
Pt-Ru particles were loaded onto spherical polythiophene balls (PThB) and new catalysts, Pt-Ru@PThBs, were prepared. Pt and Ru ions were subjected to chemical reduction using NaBH(4) as reducing agent or gamma-irradiation in the presence of PThBs. The size, morphology, and composition of Pt-Ru@PThB catalysts were determined by transmission electron microscope (TEM), X-ray diffraction (XRD) and elemental analysis. TEM images of the Pt-Ru@PThB catalysts clearly provide evidences that Pt-Ru alloy nanoparticles are dispersed onto the surface of PThBs. The electrocatalytic efficiency of Pt-Ru@PThB was tested for electrochemical oxidation of carbon monoxide as well as for methanol. Pt-Ru@PThB catalyst prepared by gamma-irradiation exhibits the enhanced electrocatalytic oxidation of CO and methanol. We envisage that Pt-Ru@PThB catalysts are suited for direct methanol fuel cells.
More Related Videos
12:08Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
Published on: June 24, 2022
10:19Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
Published on: July 18, 2017
Related Concept Videos
Radical Substitution: Hydrogenolysis of Alkyl Halides with Tributyltin Hydride
The bonds formed in this reaction are stronger than the bonds broken, making it energetically favorable. The reaction follows a radical chain mechanism similar to radical halogenation reactions,...
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Benzene to 1,4-Cyclohexadiene: Birch Reduction Mechanism
Nitriles to Amines: LiAlH4 Reduction
As shown below, the mechanism involves three steps. Firstly, the hydride ion acting as a nucleophile attacks the nitrile carbon to form an anion. In the second step, a second equivalent of the hydride ion attacks the anion to...
Preparation of Amines: Reductive Amination of Aldehydes and Ketones
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...