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Related Concept Videos

Catalysis02:50

Catalysis

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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.
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Related Experiment Video

Updated: Jan 9, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
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Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

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Engineering monolayer Ti3C2Tx-Ni/C heterostructures for enhanced hydrogen evolution catalysis.

Zhi Hong1, Kai Ou1, Zengkun You1

  • 1School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, Sichuan, People's Republic of China.

Nanotechnology
|December 1, 2025
PubMed
Summary

Researchers developed a novel Ti3C2Tx@NiC catalyst for efficient hydrogen evolution reactions (HER). This durable and cost-effective electrocatalyst demonstrates excellent performance in clean energy applications.

Keywords:
HERNi/C nanofilmsheterostructuresmagnetron sputteringmonolayer Ti3C2Tx

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Renewable Energy

Background:

  • Growing demand for clean energy technologies necessitates efficient hydrogen evolution reaction (HER) electrocatalysts.
  • Advancing renewable energy systems relies on developing high-performance catalysts for hydrogen production.

Purpose of the Study:

  • To fabricate and characterize a novel heterostructure catalyst for enhanced HER performance.
  • To investigate the catalytic activity and stability of Ti3C2Tx@NiC heterostructures.

Main Methods:

  • Fabrication of a Ni/C-doped nanofilm and monolayer Ti3C2Tx heterostructure using magnetron sputtering.
  • Electrocatalytic testing in 1 M KOH to evaluate overpotential and current density.
  • Stability testing over 24 hours to assess catalyst durability.

Main Results:

  • The optimized Ti3C2Tx@NiC catalyst (Ni:C ratio 1:1) achieved an overpotential of 111 mV at 10 mA cm-2.
  • The catalyst demonstrated excellent long-term stability, maintaining high activity after 24 hours.
  • The heterointerface formation promoted efficient H+ adsorption and H2 desorption.

Conclusions:

  • The Ti3C2Tx@NiC heterostructure exhibits superior HER catalytic activity and durability.
  • Synergistic interactions between Ni and C species at the heterointerface enhance performance.
  • This study presents a viable strategy for cost-effective HER electrocatalyst development.