Related Experiment Video
Updated: Jan 11, 2026

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Synergistic Interaction Between Ir-N-C and Ru Nanoparticles for Enhanced Activity Toward Alkaline Hydrogen Oxidation
Yiming Jin1, Wenjing Cheng1, Mingming Pan1
1College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei, 430072, P. R. China.
None:
Boosting the sluggish alkaline hydrogen oxidation reaction (HOR) kinetics with reduced amounts of noble metals is essential for the commercial applications of anion exchange membrane fuel cells. The employment of single atom embedded N-doped carbon could remarkably increase both the catalytic efficiency and durability for various electrochemical processes when coupled with metal nanoparticles. Here, an ultrasmall Ru nanoparticle supported on an Ir-N-C framework (Ru/Ir-N-C) is prepared. Benefitting from the introduction of Ir-N-C substrates, the HOR activity and CO-tolerance of the obtained Ru/Ir-N-C electrocatalyst are significantly enhanced. Electrochemical experiments and density functional theory calculations unveil the charge redistribution engenders modulated band structure and orbital overlapping interaction, which could provide suitable adsorption sites with optimal hydrogen binding energy and significantly strengthened hydroxyl binding energy, thereby leading to promoted reaction kinetics and CO desorption process. This work uncovers the decisive role of optimal adsorption behavior and electronic properties induced by the synergistic effect between Ir-N-C and Ru active centers, offering new insights into multi-functionalized noble-metal-based catalysts designing.
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
05:41Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
Published on: February 11, 2016
Related Concept Videos
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...
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
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.
Catalysis
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,...
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide