NACS Logo (PNG)The North Amer­i­can Catal­y­sis Soci­ety logo is avail­able to down­load in low (PNG for­mat) and high res­o­lu­tion (TIFF for­mat intend­ed for print­ed mate­r­i­al) images. How­ev­er, use of the logo should be approved by the NACS. Please for­ward your request to Jing­guang Chen, Pres­i­dent, North Amer­i­can Catal­y­sis Soci­ety at jgchen@columbia.edu.