Ehrman, Sheryl H.

Sheryl H. Ehrman

Professor and Chair

Chemical and Biomolecular Engineering

A. James Clark School of Engineering


Statement of energy interests and expertise: 

The overall focus in our group is the development of new routes for synthesis of nano and microparticles as well as particle based materials. We mainly use aerosol-based approaches, as scalability of these processes has been demonstrated, but we also are developing colloidal methods for nanoparticle synthesis.

Related to energy, our group focuses on process development for production of multicomponent oxide materials for fuel cells and high surface area materials for advanced solar energy conversion. We have developed a combustion synthesis route for ceria based water gas shift catalysts for fuel reformation, important for enabling fuel cells to run on available liquid fuels. We are extending this process to the production of solid oxide fuel cell anode materials, and catalysts for conversion of water to hydrogen using sunlight. We are specifically interested in low cost materials and processes for photocatalyst production.

In addition to the combustion synthesis route, our group is collaborating with Ray Adomaitis on a furnace-based approach. Additional collaborators on the solar hydrogen projects are Michael Zachariah at the University of Maryland and Sahab Dass, Vibha Satsangi and Rohit Shrivastav at Dayalbagh Educational Institute in Agra, India.