Nonetheless, they still can not meet the practical requirements at high temperature, especially at a temperature above 165 oC. Some complex and organic inhibitors have also been reported.[14-16] Though Complexes inhibitors PMA/SbBr3 and PWVA/Sb2O3 can further reduce the corrosion of carbon steel, the corrosion rates in 55 wt.% LiBr aqueous solution at 240 oC still reach 73.7μm/y and 120.66μm/y, respectively