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Using edge-decorated nanocarbons for sustainable hydrogen production

'Game-changing' findings for sustainable hydrogen production
Graphical abstract. Credit: ACS Applied Materials & Interfaces (2023). DOI: 10.1021/acsami.2c20937

Hydrogen fuel could be a more viable alternative to traditional fossil fuels, according to University of Surrey researchers who have found that a type of metal-free catalyst could contribute to the development of cost-effective and sustainable hydrogen production technologies. The findings are published in the journal ACS Applied Materials & Interfaces.

The study has shown promising results for the use of edge-decorated nanocarbons as metal-free catalysts for the direct conversion of methane, which is also a powerful greenhouse gas, into hydrogen. Among the nanocarbons investigated, nitrogen-doped nanocarbons presented the highest level of performance for hydrogen production at high temperatures.

Crucially, the researchers also found that the nitrogen-doped and phosphorous-doped nanocarbons had strong resistance to carbon poisoning, which is a common issue with catalysts in this process.

Dr. Neubi Xavier Jr., the research fellow who performed the material science simulations, said, "Our results suggest that using edge-decorated nanocarbons as catalysts could be a game-changer for the hydrogen industry, offering a cost-effective and sustainable alternative to traditional metal catalysts. At the same time, this process gets rid of methane, which is a fossil fuel involved in global warming."

Hydrogen fuel is a clean and renewable energy source that has the potential to reduce and decrease our dependence on fossil fuels. When used as a fuel, hydrogen can power vehicles, generate electricity, and heat buildings. The only by-product of is water vapor, making it an environmentally friendly alternative to traditional fossil fuels.

However, the production of hydrogen fuel is currently reliant on , which creates carbon emissions in the process, and metal catalysts, which mining and manufacturing are energy intensive and can negatively affect the environment. Therefore, the development of sustainable hydrogen production methods and catalytic materials is crucial to realizing the full potential of hydrogen fuel as a clean energy source.

The research was conducted by a team led by Dr. Marco Sacchi from the University of Surrey, an expert in the field of sustainable energy and , who combined , thermodynamics and chemical kinetics to determine the most efficient edge decoration for hydrogen production.

Dr. Sacchi said, "One of the biggest challenges with catalysts for hydrogen production is that they can get poisoned by carbon. But our study found that nitrogen and phosphorous-doped nanocarbons are pretty resistant to this problem. This is a huge step forward for sustainable ."

More information: Neubi F. Xavier et al, First-Principles Microkinetic Modeling Unravelling the Performance of Edge-Decorated Nanocarbons for Hydrogen Production from Methane, ACS Applied Materials & Interfaces (2023). DOI: 10.1021/acsami.2c20937

Citation: Using edge-decorated nanocarbons for sustainable hydrogen production (2023, February 8) retrieved 22 April 2024 from
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