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Related Concept Videos

Catalysis01:27

Catalysis

Catalysis influences the rate of chemical reactions by providing an alternative reaction pathway with lower activation energy. A catalyst speeds up a reaction, but it is not consumed during the process. The fundamental principle of catalysis is the ability of a catalyst to alter the reaction mechanism, often introducing a more efficient pathway than the uncatalyzed process.In a catalyzed reaction, the catalyst participates directly in the reaction mechanism. It interacts with reactants to form...
Catalysis02:50

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the aerosol...
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
Radical Formation: Homolysis00:54

Radical Formation: Homolysis

A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
Radical Reactivity: Overview01:11

Radical Reactivity: Overview

Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired molecule. These three...

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Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
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Dual Atom Catalysts Through Explosion.

Zihao Wei1, Zhiyi Sun1, Xilin Zhang2

  • 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, China.

Angewandte Chemie (International Ed. in English)
|June 11, 2026
PubMed
Summary
This summary is machine-generated.

A novel molecular explosion method enables the synthesis of asymmetric dual atom catalysts (A-DACs) with diverse metal combinations on various inorganic supports. This breakthrough offers a new pathway for designing advanced catalysts for energy and environmental applications.

Keywords:
asymmetric active sitesdual atom catalystshydrogen evolution reductionmolecular explosionnitrate reduction

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Area of Science:

  • Materials Science
  • Catalysis Chemistry
  • Nanotechnology

Background:

  • Dual atom catalysts (DACs) exhibit synergistic effects, driving innovation in catalysis.
  • Asymmetric active sites are crucial for enhancing DAC performance.
  • A universal and controllable synthesis method for DACs on inorganic materials is lacking.

Purpose of the Study:

  • To develop a general strategy for synthesizing asymmetric DACs (A-DACs).
  • To create a structurally controllable library of A-DACs.
  • To explore the catalytic applications of A-DACs in energy conversion and environmental governance.

Main Methods:

  • A novel molecular explosion technique was employed to generate transient extreme conditions.
  • This method facilitated the synthesis of A-DACs with controlled structures.
  • Fifteen types of A-DACs with various metal combinations and inorganic carriers were prepared and characterized.

Main Results:

  • Successfully synthesized 15 kinds of A-DACs, including Cu-Fe, Cu-Co, Fe-Pt, Ni-Cu, and Pt-Pd combinations.
  • A-DACs were successfully loaded onto diverse inorganic carriers like Ti3C2Tx, TiN, TiO2, CeO2, and MoS2.
  • Model catalysts Cu1Fe1/Ti3C2Tx and Pt1Pd1/MoS2 demonstrated potential in electrochemical reactions.

Conclusions:

  • The molecular explosion method provides an ingenious and general strategy for designing asymmetric dual atom catalysts.
  • This approach overcomes limitations of conventional synthesis methods.
  • The developed A-DACs hold significant promise for advancing energy conversion and environmental remediation technologies.