1. Chemical and Biological Engineering Department, Colorado School of Mines, 1613 Illinois Street, Golden, Colorado 80401, United States
2. Department of Chemistry, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
3. Conn Center for Renewable Energy Research, University of Louisville, Lutz Hall 010, 200 East Shipp Street Walk, Louisville, Kentucky 40292, United States