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NSF awards $2M to Rice U collaboration to explore direct conversion of CO2 into fuels

Rice University engineer Haotian Wang has been awarded a four-year, $2-million collaborative grant by the Emerging Frontiers in Research and Innovation program of the National Science Foundation (NSF) to explore how waste carbon dioxide can be converted directly into pure liquid fuels using CO2 capture, polymer engineering, DFT simulation and solid electrolyte reactor technologies.

The assistant professor and William Marsh Rice Trustee Chair of Chemical and Biomolecular Engineering has proposed the development of a modular electrochemical system that will provide “a sustainable, negative-carbon, low-waste and point-source manufacturing path preferable to traditional large-scale chemical process plants.”

Since joining the Rice faculty in 2019, Wang has developed a catalytic reactor that uses carbon dioxide as its feedstock. The NSF grant will address challenges that remain before the renewable strategy can be applied practically on a commercial scale.

Currently, liquid products generated by electrochemical carbon dioxide reduction-reaction systems have been mixed with liquid electrolytes/soluble solutes, which requires energy- and cost-intensive separation processes to recover pure liquid fuel solutions.

In addition, efficient electrochemical carbon dioxide reduction-reaction catalysts for target products are scarce. There is still a lack of new redox-active carbon dioxide carriers for effective electrochemical carbon dioxide capture from such point sources as flue gas.

To address these challenges, our project is interdisciplinary. We include experts in catalysts and electrolyzer design, polymer engineering, density functional theory simulations and carbon dioxide capture.

—Haotian Wang

Wang’s co-principal investigators are Rafael Verduzco, a Rice professor of chemical and biomolecular engineering; T. Alan Hatton, the Ralph Landau Professor and Director of the David H. Koch School of Chemical Engineering Practice at the Massachusetts Institute of Technology; and Yuanyue Liu, an assistant professor of mechanical engineering at the University of Texas at Austin.

We intend to build an electrochemical modular system as a platform for a continuous conversion process of simulated flue gas to pure liquid fuels. We address both materials-level design and device-level engineering.

—Haotian Wang

Experiments and simulations will be integrated in each of the project’s components, creating what Wang calls “a systematic feedback loop to accelerate design and understanding of carbon dioxide capture and conversion systems tailored for small-scale distributed chemical manufacturing.”

We will work closely with Professor Wang and other collaborators to develop new polymer electrolytes, design more effective catalysts, improve carbon dioxide adsorbents and optimize the overall device for continuous generation of pure liquid fuels from carbon dioxide.

—Rafael Verduzco

Earlier this year, Wang received a three-year, $240,000 research grant from the Houston-based Robert A. Welch Foundation for related research.



Reform bio methane then add bio CO2 to make fuels.
We have known how to do this for more than 50 years.

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