Acknowledgement The authors thank the National Natural Science Foundation of China (Nos. 21574076, 21501113, 61504076 and 21407100) and Shanxi Province (No. 2014011016-1), the Program for the Top Young and Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (No. 02035290 1014).
The hydrogels of reduced graphene oxide (rGOHGs) have been synthesized through treating GO with various concentrations of sodium hypophosphite (NaH2PO2) under hydrothermal condition. The results reveal that the st...