1. Catalyst and Aftertreatment Research and Development Group, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238, USA
2. Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249, USA
3. Argonne National Laboratory, Lemont, IL 60439, USA
4. Center for Applied Energy Research, University of Kentucky, 2540 Research Park Dr., Lexington, KY 40511, USA
5. Department of Mechanical Engineering, University of Texas at San Antonio, 1 UTSA Circle, San Antonio, TX 78249, USA