ARGONNE, Ill. — Two Argonne scientists have been recognized as belonging to the top one percent of the most highly cited researchers in the world, according to a new survey by Thomson Reuters.

Argonne scientist Yugang Sun has been recognized as a leader in materials science and chemistry, while Argonne environmental scientist David Streets received the honor for his contributions to geoscience.

This is not the first time that Thomson Reuters has singled out Sun for acclaim. In 2011, the agency named him one of the top five materials scientists of the 2000s.

In the past 10 years, Sun’s work at Argonne’s Center for Nanoscale Materials has primarily focused on two unique processes for the creation of nanocrystals. The most famous, called the polyol process, reacts a special class of alcohols with metal salts to create nanoparticles of many different types of metals.

Streets’ research principally involves the effect of human activity on the atmosphere. Since 2000, he has participated in five NASA air quality missions, which gave scientists a comprehensive understanding of Asian air pollution and pollution transport to North America.

Streets has been a consultant to the World Bank, the United Nations Economic Commission for Europe and many other research organizations. He has authored or co-authored 250 peer-reviewed journal articles and book chapters.

The Thomson Reuters award recognizes publications from 2002-2012.