Related Experiment Video
Updated: Jun 13, 2026
05:47
Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
N-Confused Metalloporphyrin-Based Electrocatalysts for Oxygen Reduction.
1Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Molecules (Basel, Switzerland)
|June 12, 2026
Summary
N-confused cobalt porphyrins with N3C1 sites significantly enhance oxygen reduction reaction (ORR) catalysis compared to traditional N4 porphyrins. Catalyst architecture influences ORR selectivity and mechanisms, offering new design strategies.
Area of Science:
- Electrochemistry
- Materials Science
- Catalysis
Background:
- Metalloporphyrins are key platforms for oxygen reduction reaction (ORR) catalysis.
- N-confused porphyrins, with a modified N3C1 coordination site, show enhanced ORR electrocatalytic activity.
- Understanding the role of catalyst architecture is crucial for optimizing ORR performance.
Purpose of the Study:
- To review recent advancements in N-confused cobalt porphyrins for ORR catalysis.
- To analyze the impact of catalyst architecture on ORR performance and mechanism.
- To compare the N-confused strategy with other cobalt porphyrin modification approaches.
Main Methods:
- Literature review of N-confused cobalt porphyrins and ORR catalysis.
- Summary of general ORR mechanisms and computational study methods.
- Analysis of molecular, framework, and supported heterogeneous N-confused cobalt porphyrin architectures.
Main Results:
- N-confused cobalt porphyrins (CoN3C1) outperform traditional cobalt porphyrins (CoN4) in ORR catalysis.
- Catalyst architecture significantly affects ORR selectivity and reaction mechanisms.
- The N-confused strategy offers a promising route for developing efficient ORR electrocatalysts.
Conclusions:
- N-confused cobalt porphyrins represent a significant advancement in ORR catalysis.
- Tailoring catalyst architecture is essential for optimizing ORR performance.
- Further research into integrated catalyst design and mechanistic studies is warranted.
Related Concept Videos
01:24Types of Reversible Electrodes
For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
01:43Electron Transport Chain: Complex III and IV
During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...
03:11Oxidation-Reduction Reactions
Oxidation–Reduction Reactions
01:41The Supercomplexes in the Crista Membrane
The mitochondrial cristae membrane is the primary site for the oxidative phosphorylation (OXPHOS) process of energy conversion mediated through respiratory complexes I to V. These complexes have been widely studied for decades, and it has been proven that they form supramolecular structures called respiratory supercomplexes (SC). These higher-order complexes may be crucial in maintaining the biochemical structure and improving the physiological activity of the individual complexes while...
01:23Properties of Organometallic Compounds
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
01:26Thermal and Photochemical Electrocyclic Reactions: Overview
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.