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Updated: Sep 8, 2025

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
Published on: June 21, 2017
Transition Metal Non-Oxides as Electrocatalysts: Advantages and Challenges
Chandni Das1,2, Nibedita Sinha1,2, Poulomi Roy1,2
1Materials Processing & Microsystems Laboratory, CSIR - Central Mechanical Engineering Research Institute (CMERI), Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
Transition metal non-oxides (TMNOs) show promise as efficient, durable electrocatalysts for water electrolysis, driving the hydrogen economy. These materials offer bifunctional and trifunctional catalytic activity, potentially replacing noble metals.
Area of Science:
- Materials Science
- Electrochemistry
- Sustainable Energy
Background:
- Growing demand for green hydrogen fuels necessitates advancements in water electrolysis.
- Transition metal non-oxides (TMNOs) are emerging as superior electrocatalysts compared to traditional transition metal oxides (TMOs).
Purpose of the Study:
- To review the properties and synthesis of nanostructured TMNOs for electrocatalysis.
- To highlight TMNOs as next-generation bi/trifunctional electrocatalysts for energy applications.
Main Methods:
- Review of crystal structures, phases, and synthetic strategies for various TMNOs.
- Analysis of TMNO performance and longevity in electrocatalytic reactions.
Main Results:
- TMNOs exhibit excellent performance and longevity, outperforming TMOs.
- TMNOs demonstrate bifunctional and trifunctional catalytic capabilities, including hydrogen evolution (HER), oxygen evolution (OER), and oxygen reduction (ORR).
Conclusions:
- Nanostructured TMNOs are promising candidates for efficient and durable electrocatalysts in water electrolysis.
- Further research into TMNOs is crucial for advancing the hydrogen economy and energy storage solutions.
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