Engineering bunched RhTe nanochains for efficient methanol oxidation electrocatalysis.
Ziqiang Wang1, Hugang Zhang, Songliang Liu
1State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China. wangliang@zjut.edu.cn hjw@zjut.edu.cn.
Chemical Communications (Cambridge, England)
|October 15, 2020
Summary
Researchers developed a two-step synthesis for rhodium telluride nanochains (RhTe NCs). These nanochains show enhanced catalytic performance for methanol electro-oxidation in alkaline media.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Developing efficient catalysts for methanol electro-oxidation is crucial for fuel cell technology.
- Nanostructured materials offer high surface areas for enhanced catalytic activity.
Purpose of the Study:
- To synthesize bunched RhTe nanochains (RhTe NCs) using a novel two-step method.
- To evaluate the catalytic performance and durability of RhTe NCs for methanol electro-oxidation.
Main Methods:
- A two-step synthesis employing tellurium nanowires and formic acid.
- Characterization of the synthesized RhTe NCs, including electrochemical active surface area (ECSA) measurements.
- Electrocatalytic testing for methanol electro-oxidation in an alkaline medium.
Main Results:
- Successful synthesis of bunched RhTe nanochains (RhTe NCs).
- Achieved a high electrochemical active surface area of 89.3 m 2 gRh-1.
- Demonstrated superior catalytic activity and durability for methanol electro-oxidation.
Conclusions:
- The proposed two-step method effectively synthesizes RhTe NCs with high surface area.
- RhTe NCs exhibit excellent catalytic properties for alkaline methanol electro-oxidation, indicating potential for fuel cell applications.
More Related Videos
Related Concept Videos
02:17Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.7K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
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...
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...
3.7K
01:26Thermal and Photochemical Electrocyclic Reactions: Overview
2.8K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.8K