杏吧原创

The U.S. Department of Energy (DOE) has selected Asst. Prof. Fanglin Che of the Department of Chemical Engineering as one of 93 rising scientists and engineers from across the country to receive its prestigious . The award comes with a five-year, $875,000 grant that will support Che鈥檚 research into the production of carbon-neutral hydrogen.

According to the agency, 鈥淭hese awards are a part of the DOE鈥檚 long-standing efforts to develop the next generation of STEM leaders to solidify America鈥檚 role as the driver of science and innovation around the world.鈥�

Che鈥檚 goal is to use a computational approach to study (the process of accelerating a chemical reaction by a catalyst) enhanced by electric fields. Her research will investigate the effects of electric fields on the production of carbon-neutral hydrogen from the catalysis of ammonia.聽

鈥淭his is the first time this kind of research is being conducted 鈥� that is, combining multiscale simulation and an interpretable machine learning approach to accelerate field-enhanced catalysis,鈥� says Che, who joined UMass Lowell in 2019.

Currently, the catalysis is done through industrial processes such as ammonia cracking, which uses metal catalysts like nickel, cobalt and copper, which are abundant in nature, at a relatively high temperature.聽

鈥淭he goal of using electric fields is to lower the temperature requirement of the catalytic process,鈥� Che notes.

The largest sources of ammonia come from the decomposition of organic matter from animal waste in agriculture as well as from fertilizers used to grow crops.

鈥淚t鈥檚 called carbon-neutral hydrogen since the only other product of ammonia鈥檚 catalysis is nitrogen, which is environmentally friendly,鈥� says Che. 鈥淭here is no carbon dioxide emission involved.鈥�

She says the study could potentially improve the energy efficiency of carbon-neutral hydrogen鈥檚 production by obtaining pure hydrogen from the resulting cracked gas, as well as getting the highest possible yield from the ammonia-to-hydrogen conversion while still emitting zero carbon dioxide. The hydrogen gas could then be used in to generate electricity and as a clean energy source for industry, homes and hydrogen-powered cars.

This year鈥檚 DOE winners will receive a total of $135 million in funding for their research projects. The program鈥檚 goal is to bolster the nation鈥檚 scientific and engineering workforce by supporting exceptional researchers at the outset of their careers, when many of them do their most formative work.

In addition to Che, the other awardees include researchers from Texas A&M University, the University of Chicago, Stanford University, Cornell University, Brown University, Columbia University and Princeton University, as well as a dozen DOE national laboratories. Their research covers a wide range of topics, from artificial intelligence to astrophysics to fusion energy.

Che鈥檚 UML research team includes Ph.D. students Mingyu Wan, Saleh AhmatIbrahim, Runze Zhao, Yuting Xu, Pragyansh Singh and Zhengyang Yang (co-advised with Prof. Zhiyong Gu)聽and undergraduate students Jaime Notarangelo and Charles Milhans, all in chemical engineering. Her external collaborators are Asst. Prof. Hongfu Liu of Brandeis University, Asst. Prof. Prashant Deshlahra of Tufts University and Aspen Products Group Inc. in Marlborough, Massachusetts.

Che and her research team will develop novel deep-learning algorithms and multiscale modeling and simulations to investigate the fundamental science of catalysis enhanced by electric fields in the lab.

鈥淭his area of research has extensive applications in renewable energy technologies, such as plasma catalysis, electrostatic catalysis, electrocatalysis and fuel cells,鈥� says Che. 鈥淔ield-enhanced chemical processes provide a sustainable, energy-efficient and modular setup to store renewable electricity chemically.鈥�

She says integrating modeling and machine learning algorithms can lead to the development of new materials and new catalyst designs based on computational and experimental data, rather than by trial and error.

A resident of Chelmsford, Massachusetts, Che earned her doctorate in chemical engineering from Washington State University in 2016.