Surface potential-determined performance of Ti<sub>3</sub>C<sub>2</sub>T<sub>2</sub> (T = O, F, OH) and Zr<sub>3</sub>C<sub>2</sub>T<sub>2</sub> (T = O, F, OH, S) MXenes as anode materials of sodium ion batteries
Xian‐Hu Zha, Xiufang Ma, Jingting Luo, Chen Fu
Abstract
respectively. More importantly, the surface potential is determined to be an effective descriptor for selecting electrode materials. The migration barrier is proportional to the fluctuation amplitude of the surface potential. A low surface potential generally implies a high capacity. A large open circuit voltage is prone to appear in the structure with a large fluctuation amplitude and a low average value of its surface potential.
Topics & Concepts
MXenesMaterials scienceSurface (topology)AnodeAnalytical Chemistry (journal)Physical chemistryNanotechnologyChemistryMathematicsGeometryElectrodeChromatographyMXene and MAX Phase MaterialsFerroelectric and Negative Capacitance Devices2D Materials and Applications