catalysts

Nanoscale photocatalysts are small, man-made particles that harvest energy from sunlight to produce liquid fuels and other useful chemicals. A new imaging solution developed at Washington University in St. Louis reveals the significance of a particular structural feature — clusters of oxygen vacancies — in achieving high photocatalytic activity.

Liviu M. Mirica, PhD, assistant professor in the Department of Chemistry in Arts & Sciences at Washington University in St. Louis, has won a prestigious research fellowship from the Sloan Foundation. Mirica will use the funds to develop novel catalysts that will be able to efficiently convert the greenhouse gases methane (CH4) and carbon dioxide (CO2) into useful chemicals.

Younan XiaMaterial scientists at Washington University in St. Louis have developed a technique for a bimetallic fuel cell catalyst that is efficient, robust and two-to-five times more effective than commercial catalysts. The novel technique eventually will enable a cost effective fuel cell technology, which has been waiting in the wings for decades and should give a boost for cleaner use of fuels worldwide.

David Kilper/WUSTL PhotoPratim Biswas and his group have developed a method to make a variety of oxide semiconductors that, when put into water promote chemical reactions that split water into hydrogen and oxygen.Engineers at Washington University in St. Louis have developed a unique photocatalytic cell that splits water to produce hydrogen and oxygen in water using sunlight and the power of a nanostructured catalyst. The group is developing novel methodologies for synthesis of nanostructured films with superior opto-electronic properties.

Pratim Biswas has found a method for removing MTBE, which been detected at low levels in municipal water sources around the nation.