Xi Shen

TL;DR: The surface structure and intercalation chemistry of Ti3C2X are clarified at the atomic scale by aberration-corrected scanning transmission electron microscope (STEM) and density functional theory (DFT) calculations, enrich the understanding of the MXenes and shed light on future material design and applications.

TL;DR: The controversial phase transition from semiconductive 2H to metallic 1T phase and occupancy of the intercalated sodium (Na) upon electrochemical Na intercalation into MoS2 are clarified at the atomic scale by aberration-corrected scanning transmission electron microscope.

TL;DR: N nanoscale three-terminal memristive transistors based on quasi-2D α-phase molybdenum oxide (α-MoO3 ) to emulate biological synapses are presented, providing insight into the potential application of 2D transition-metal oxides for synaptic devices with high scaling ability, low energy consumption, and high processing efficiency.

TL;DR: In this paper, surface doping of niobium (Nb) and other heavy ions in a Li-rich Mn-based layered oxide, Li1.2Mn0.54Ni0.13Co 0.13O2.

TL;DR: The results show that oxygen vacancies are gradually generated in the oxide layer under ramped electrical bias, and finally form several conductive channels connecting the two electrodes.