Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Technology Category/ Market
Category – Manufacturing / Chemical
Applications –Catalysis, separation and Energy Storage , Drug Delivery Systems, Diagnostics
Industry- Nanotechnology, Chemicals, Manufacturing, Medical
Market -The global microporous and mesoporous materials market size was USD 8,601.7million in 2021. The market is projected to touch USD 14,930 million by 2028 exhibiting a CAGR of 8.2% during the forecast period.
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Problem Statement
- The commercial application of alkaline fuel cells is determined by the efficiency of oxygen reduction reaction(ORR)and on catalysts that promote these reactions
- Currently used platinum catalysts have sluggish kinetics, methanol crossover, high cost and limited availability.
Technology
- The present invention discloses a process for preparing nitrogenous ordered mesoporous carbons using hexagonal or cubic silica templates and nitrogen-containing organics
- Further discloses metal free nitrogenous ordered mesoporous carbon material using the hard template method taking polyvinyl pyrrolidone as a precursor thereby avoiding metal chlorides as polymerizing agents and studied their ORR abilities in alkaline medium for fuel cell
- Said nitrogenous ordered mesoporous carbon as catalyst for oxygen reduction reaction in alkaline fuel cells
METHOD:
- Dissolving polyvinylpyrrolidine in a solvent [300 K – 320 K ;45 min – 1.15 hr] to form a solution
- Adding hexagonal or cubic silica template to solution of step (a) [Room Temperature;5-7 hrs to form mixture;
- Drying at 330-360 K for 5-7 hrs to form dried mixture
- Pyrolysis of dried mixture of step (b)[573-1273 K, 5-7hr, 4-6oC min-1, inert atmosphere]to form carbon/silica composite
- Dissolving carbon/silica composite of step (c) in hydrogen fluoride/alkali solution at room temperature to remove silica
- Washing with ethanol and drying to form metal free nitrogenous ordered mesoporous carbon material.
Key Features/ Value Proposition
Technical Perspective:
- Nitrogenous ordered mesoporous carbon as catalyst for oxygen reduction reaction in alkaline medium displaying superior activity and stability with a current density on par with 20% Pt/C commercial catalyst along with a four electron transfer and peroxide yield less than 10%.
- High surface area and uniform pore size
User Perspective:
- High efficiency, eco-friendly by product,cost-effective stationary and portable applications and flexibility of usage in transportation
- These catalysts can be effectively used in fuel cells as cathodes for ORR to avoid cross over effects
Questions about this Technology?
Contact For Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. SELVAM P
NCCR & Department of Chemistry
Intellectual Property
- IITM IDF Ref. 2122
- IN410837(Granted)
Technology Readiness Level
TRL- 4
Technology validated in lab