Effect of V-doping on structure and electrical conductivity of Magnéli phase Ti4O7
Source abstract
Abstract
Magnéli phase Ti 4O 7 has been widely used in a range of electrochemistry disciplines due to its stable structure and excellent electrical conductivity. However, the conductivity advantages of Ti 4O 7 as a conductive addition are not readily visible, and the conductivity of Ti 4O 7 is significantly decreased by the presence of other titanium suboxide. The conductivity qualities of Ti 4O 7 can be improved by V. Studies on the impact of the amount of V on the structure and conductivity of Ti 4O 7, as well as the mechanism of V-enhanced conductivity of Ti 4O 7, are scarcely discernible. As a result, the effects of different V doping levels on the structure and conductivity of Ti 4O 7 were examined in this study, and when paired with carrier mobility calculation based on density functional theory (DFT) calculations, the mechanism behind V-enhanced Ti 4O 7 conductivity was discovered. Simple solvothermal and hydrogen reduction methods were used to prepare V-doped Ti 4O 7 at a variety of doping concentration. The conductivity of Ti 4O 7 improved with increasing V doping, however the presence of second phase (Ti 1−xV x) 2O 3 decreased the conductivity of Ti 4O 7. This work is important for further understanding the optimal doping amount for V-enhanced Ti 4O 7 conductivity and the V-enhanced Ti 4O 7 conductivity behavior.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Battery Materials · Transition Metal Oxide Nanomaterials · Advanced Battery Materials and Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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