Related Experiment Video
Updated: Jun 7, 2026
12:47
Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
Published on: May 2, 2014
21.8K
Metal-Oxides- and Metal-Oxyhydroxides-Based Nanocomposites for Water Splitting: An Overview
Tse-Wei Chen1, Shen-Ming Chen2, Ganesan Anushya3
1Department of Materials, Imperial College London, London SW7 2AZ, UK.
Nanomaterials (Basel, Switzerland)
|July 14, 2023
Summary
Transition metal oxyhydroxide (OxH)-based electrocatalysts show promise for efficient hydrogen production via water electrolysis. This review highlights their electrochemical performance and potential for green energy solutions.
Area of Science:
- Materials Science
- Electrochemistry
- Green Energy Technology
Background:
- Water electrolysis is crucial for green hydrogen production.
- Developing efficient and inexpensive electrocatalysts is key.
- Transition metal oxyhydroxides (OxHs) show significant potential for alkaline hydrogen evolution reaction (HER).
Purpose of the Study:
- To comprehensively review OxH-based electrocatalysts for water electrolysis.
- To discuss the water-splitting mechanism and scaling relations.
- To outline prospects and challenges for OxH electrocatalysts.
Main Methods:
- Literature review of OxH-based electrocatalysts.
- Analysis of electrochemical performance data.
- Discussion of water-splitting mechanisms and nanostructure development.
Main Results:
- OxH-based electrocatalysts demonstrate strong electrochemical performance for HER.
- Various OxH materials, including transition metals, rare metals, polymers, and MXene-supported systems, are summarized.
- Hierarchical nanostructures can enhance OxH electrode performance for water splitting.
Conclusions:
- OxH electrocatalysts are vital for advancing green hydrogen production.
- Further research is needed to overcome existing challenges and optimize performance.
- These materials offer a promising pathway towards sustainable energy solutions and addressing environmental crises.
Related Concept Videos
01:22Waterproofing and Anti-Bacterial Admixtures in Concrete
Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
Waterproofing admixtures render concrete hydrophobic,...
Waterproofing admixtures render concrete hydrophobic,...
01:24Microbial Corrosion
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...