A paper by Yun Hang Hu and graduate student Yan Huo was among the most-read articles in the Journal of Physical Chemistry during the second quarter of 2012. “Fast and Exothermic Reaction of CO2 and Li3N into C–N-Containing Solid Materials” showed that carbon nitride could be made in an exothermic reaction of carbon dioxide and a lithium compound. Read more about Hu’s discovery at Carbon Nitride.