Related Experiment Video
Updated: Dec 28, 2025
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
Palladium as a Superior Cocatalyst to Platinum for Hydrogen Evolution Using Covalent Triazine Frameworks as a Support
Manying Liu1, Xueqing Wang1, Jing Liu1
1Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, Wuhan 430074, China.
Covalent triazine frameworks (CTFs) with abundant pyridinic nitrogen enhance palladium nanoparticle interactions for superior photocatalytic hydrogen production. This study highlights Pd@CTF-N
Area of Science:
- Materials Science
- Catalysis
- Nanotechnology
Background:
- Pyridinic nitrogen in covalent triazine frameworks (CTFs) is valuable for heterogeneous catalysis.
- Understanding metal-nitrogen interactions is crucial for catalyst design.
Purpose of the Study:
- To investigate the interaction between palladium/platinum (Pd/Pt) and pyridinic nitrogen in CTFs.
- To develop a tunable CTF platform for studying these interactions.
- To evaluate the impact of these interactions on photocatalytic hydrogen evolution.
Main Methods:
- Synthesis of a tunable covalent triazine framework (CTF) platform.
- Immobilization of palladium (Pd) and platinum (Pt) nanoparticles onto the CTF.
- Characterization of nanoparticle size and metal-CTF interactions.
- Photocatalytic hydrogen evolution rate measurements.
Main Results:
- Smaller Pd nanoparticles formed due to stronger Pd-pyridinic nitrogen interaction.
- Enhanced electron-hole pair separation and photoelectron transfer observed with Pd@CTFs.
- Pd@CTF-HC6 showed an 11-fold higher hydrogen evolution rate than Pt@CTF-HC6.
- Pd@CTF-N achieved a hydrogen evolution rate of ~10,556 μmol h⁻¹ g⁻¹, 5 times higher than Pt@CTF-N.
Conclusions:
- Stronger interaction between Pd and CTF pyridinic nitrogen benefits photocatalysis.
- Pd-based CTFs are promising catalysts for efficient hydrogen production.
- The CTF platform allows for tuning metal-support interactions for optimized catalytic performance.
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
02:17Reduction 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...
02:13Reduction 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...
01:28Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation
02:50Catalysis
02:24Reduction 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.