Chengliang Xiao, Yaxing Wang, Lanhua Chen, Xuemiao Yin, Jie Shu, Daopeng Sheng, Zhifang Chai, Thomas E. Albrecht-Schmitt, and Shuao Wang*, Boosting proton conductivity in highly robust three-dimensional inorganic cationic extended frameworks through ion exchange with dihydrogen phosphate anions, Chemistry-A European Journal, 2015, accepted.