Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Flame based Heat Treatment for Enhancement of Hydrogen Evolution Reaction (HER) Kinetics in Ceria-based Electro-catalysts
Categories for this Invention
Technology: Enhancement of Hydrogen Evolution Reaction (HER)
Category: Chemistry & Chemical Analysis
Industry: Electro catalyst
Application: Fuel Cell ,Chemical
Market: The global market size was valued of USD 15.83 Billion in 2023, with projections to achieve USD 29.9 Billion by 2031, a compound annual growth rate (CAGR) of 9.51% from 2024 to 2031
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Problem Statement
- Hydrogen evolution catalysis is crucial for global hydrogen economy growth.
- Overpotential, the excess energy needed for chemical reactions, can decrease efficiency and current density.
- Reducing overpotential enhances efficiency and maximizes current density.
- Previous findings show cerium nickel-based electro catalysts often underperform for hydrogen evolution catalysis (HER) but show excellent performance for oxygen-emitting reaction (OER).
- The focus is on improving existing (HER) performance without changing the cerium nickel concentration.
- This method enhances for activate electrodeposited samples for (HER) by altering catalyst surface morphology and creating material defects.
Technology
A method of making an electrode for Hydrogen Evolution Reaction (HER)
- Preparing an electrolyte solution comprising a cerium precursor, a nickel precursor, a salt, and water
- Transferring the electrolyte solution to an electrochemical cell comprising an electrode;
- Applying a potential or current to electrodeposit a coating of cerium nickel-based electrocatalyst on the electrode; and
- Subjecting the coating of cerium nickel-based electrocatalyst to heat treatment.
Key Features / Value Proposition
Combination effect
- Combining nickel and ceria can yield high hydrogen production yields.
Post-heat treatment
- samples showed significant reduction in lower over potential (185 mV/dec) exposed to flame for 165 sec.
Enhance current density
- current density of 100mAcm-2 at 440 mV vs RHE, which increased after 24 hours of stability test.
- lower overpotential, and reduce Tafel slope for HER kinetics in alkaline medium.
Affordable Electrode
- High activity and long-term stability and affordable electrode with electrodeposited ceria-based electrocatalyst for HER in alkaline medium,
Advantages
- Simple, Economical, and minimal resource-efficient method
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Tiju Thomas
Department of Metallurgical and Materials Eng.
Intellectual Property
IITM IDF Ref.2433
Patent No: IN 545302
Technology Readiness Level
TRL- 4
Experimentally validated in Lab