Influence of Carbon Material Properties on Plasma Sulfonation Processes
This research explores the use of dielectric barrier discharge (DBD) plasma to enhance the catalytic performance of carbon materials via sulfonation. Traditional sulfonation methods require concentrated sulfuric acid at high temperatures, posing challenges such as high corrosion and non-recyclability. The study aims to use gas-liquid interfacial plasma to treat carbon nanotubes (CNTs) under mild conditions, including dilute sulfuric acid and room temperature. Experimental results show that plasma-treated carbon exhibits improved catalytic performance in biomass transformation processes, specifically in cellulose conversion and glucose yield. Characterization techniques like Raman spectroscopy and X-ray photoelectron spectroscopy confirm the structural and compositional changes in the treated carbon materials. Furthermore, the catalysts demonstrate strong recyclability, retaining catalytic efficiency after multiple uses. The study concludes that plasma sulfonation is a promising, eco-friendly technique, though further research is needed to optimize the contact area and improve overall catalytic performance.
Speaker – SiQi Deng, Doctoral student at the Institute of Science Tokyo
These seminars are being delivered by students participating in an exchange program between Institute of Science Tokyo and Energy Futures Lab, Imperial College London. The programme offers a unique opportunity for the participants to deepen their academic and cultural understanding over the course of one intensive week. This collaborative initiative is designed to foster cross-institutional learning and innovation in the field of engineering and sustainable energy. The exchange not only aims to enhance technical skills but also to build lasting international connections and a broader perspective on global energy challenges.
About Energy Futures Lab
Energy Futures Lab is one of seven Global Institutes at Imperial College London. The institute was established to address global energy challenges by identifying and leading new opportunities to serve industry, government and society at large through high quality research, evidence and advocacy for positive change. The institute aims to promote energy innovation and advance systemic solutions for a sustainable energy future by bringing together the science, engineering and policy expertise at Imperial and fostering collaboration with a wide variety of external partners.