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Related Concept Videos

Heterogeneous Catalysis01:22

Heterogeneous Catalysis

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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...
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3D Hierarchical Porous Mo2 C for Efficient Hydrogen Evolution.

Huixiang Ang1,2, Huanwen Wang1,2, Bing Li3

  • 1Energy Research Institute @ NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, Singapore, 637553, Singapore.

Small (Weinheim an Der Bergstrasse, Germany)
|April 15, 2016
PubMed
Summary

This study presents a novel 3D hierarchical porous molybdenum carbide electrocatalyst for efficient hydrogen production. The material exhibits a low operating potential and enhanced proton transport, making it promising for clean energy applications.

Keywords:
3Dhierarchicalhydrogen evolution reactionmolybdenum carbideporous

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Hydrogen production is crucial for clean energy.
  • Efficient electrocatalysts are needed to lower production costs.
  • Molybdenum carbide shows potential as an electrocatalyst.

Purpose of the Study:

  • To develop a 3D hierarchical porous molybdenum carbide electrocatalyst.
  • To evaluate its performance for hydrogen production.
  • To understand the structure-property relationships.

Main Methods:

  • Synthesis of 3D hierarchical porous molybdenum carbide.
  • Electrochemical characterization for hydrogen evolution reaction (HER).
  • Analysis of surface area and pore structure.

Main Results:

  • Achieved a low operating potential of 97 mV at 10 mA cm(-2).
  • Exhibited a high specific surface area of 302 m(2) g(-1).
  • Demonstrated a hierarchical porous architecture facilitating mass transport.

Conclusions:

  • The developed molybdenum carbide is an effective electrocatalyst for hydrogen production.
  • Hierarchical porosity and high surface area are key to its performance.
  • Offers a promising pathway for low-cost, efficient hydrogen generation.