The study found that Cu-ZnO-Al2O3 catalysts have two active sites: CuCu(100) hydroxylated ZnO interface for water gas shift reactions and Cu(611) Zn alloy for CO hydrogenation to methanol. The researchers used in situ characterization technology and theoretical calculation to determine the active site structures.
A new study by Virginia Commonwealth University quantifies the financial impact of sickle cell disease, revealing $15k in lost wages per year per person, totaling $650,000 over a lifetime. The research found that 97% of respondents experienced severe and debilitating pain attacks from sickle cell.
Researchers analyzed sediments from Lake Nvshan to reconstruct a high-resolution model of the monsoon precipitation in the Jiang-Huai region. They found large fluctuations of sediment redness over the past 1800 years, indicating wetter and drier periods during the Little Ice Age and Medieval Warm Period.