Cooperative Binary Ionic Solids for Artificial Photosynthesis of Fuels John A. Shelnutt, Kathleen E. Martin, Yongming Tian, Julian Y.-T. Shelnutt, Tito Busani, Zhongchun Wang, Yan Qiu, John Jacobsen, Craig J. Medforth Advanced Materials Laboratory Sandia National Laboratories, Albuquerque, NM 87106 Department of Chemistry, University of Georgia, Athens, GA 30602 Department of Chemistry, University of California, Davis, CA Department of Chemical & Nuclear Engineering University of New Mexico, Albuquerque, NM Yongming Tian