Research Interests

My research group develops novel processes and catalysts to transform low-value materials, such as biomass, waste, and CO2 into valuable products. This is accomplished by applying catalytic and thermochemical conversion techniques while utilizing industrially relevant feedstocks. 

The central themes of the research program are:

Circular Economy 

The future will rely on a circular economy to minimize waste generation and resource extraction. To achieve this, my group develops processes to transform waste such as non-recycled plastics, agricultural residues, and municipal solid waste into useful products. We use thermochemical and catalytic approaches, focusing on developing low-cost processes to generate value from residues for which there are currently no other uses.

Biochar Production and Functionalization

Biochar is a material that can be produced from biomass or waste materials and can be produced via thermochemical treatment. We develop ways to functionalize the biochar surface to generate unique products such as catalysts, adsorbents, or fertilizers. This enables the creation of sustainable products which are inexpensive and can be produced from feedstocks which are widely available.

CO2 Utilization 

CO2 is produced from many sources, and even as the use of renewable and zero-carbon fuels increases, CO2 will continue to be generated from chemical processes, landfills, and fossil fuels. In order to decrease the effects of climate change, we must find ways to convert CO2 into useful products. Our research focuses on developing processes in which CO2 can be converted into fuels or chemicals.

Projects

Co-gasification of biomass and plastics

Gasification enables the production of hydrogen (H2) or synthesis gas (CO + H2) from solid feedstocks. We are investigating gasification of mixed waste, including biomass and plastic waste. The co-gasification of these feedstocks enhances product yields, and enables processing of real-world feedstocks which are often mixed. We also investigate the influence of CO2 injection, which can be a low-cost way to convert CO2 into useful products, while improving overall conversion.

Biochar

We are developing novel products from biochar by using unique feedstocks and processes for biochar production. We modify the biochar morphology and functionalize its surface to generate valuable products that are tailored for specific applications. These include biochar-based catalysts for the production of renewable fuel, biochar-based adsorbents for removal of pollutants from wastewater, and biochar-based fertilizers.  

Bifunctional catalytic membrane reactor for the production of dimethyl ether from CO2 and H2

We have developed and patented a reactor for the production of dimethyl ether, an alternative transportation fuel, using renewable energy and CO2 as a feedstock. This process uses a bifunctional catalyst to produce DME in a one-step reactor, and enhances conversion by increasing the thermodynamic limit for product formation compared to a two-step system. The reactor is equipped with an in situ membrane that selectively removes water as it is produced, which enhances conversion and decreases catalyst deactivation. This presents a pathway for the production of renewable fuels.  

Opportunities in My Group

We are working towards developing sustainable solutions that include the development of renewable fuels, CO2 capture and utilization, and producing valuable products from plastic and biomass waste.  Students in my group develop skills in reactor testing, analytical techniques, data analysis and communication. Having worked both in industry and academia, I ensure that my students have the skills and connections required to succeed in the next steps of their chosen career paths. 

I am currently looking for motivated MESc and PhD students. 

If you are interested in joining my research group, please send me your CV and a brief summary of your research interests and experience. Applicants must meet the program requirements, which are outlined on the department website and can be found here: https://www.eng.uwo.ca/chemical/graduate/future_students/how_to_apply.html