Sn‐doped induced stable 1T‐WSe 2 nanosheets entrenched on N‐doped carbon with extraordinary half/full sodium/potassium storage performance
Source abstract
Abstract
Abstract At present, there have been some reports on the application of metal phase selenide (1T‐MSe 2 ) in the field of energy storage. In this manuscript, a stable Sn‐doped metal phase tungsten selenide (1T‐WSe 2 ‐Sn) was elaborately fabricated in situ by a simple calcination technique. N‐doping was introduced by employing chitosan as precursor and nanoreactor, the Sn‐doping induces 1T phase of WSe 2 and enlarges the layer space to promote the electron/ion transport and structural stability. The optimized 1T‐WSe 2 ‐Sn electrode delivers prominent cycling lifespan (285 mAh·g −1 at 1.0 A·g −1 after 900 cycles) along with decent rate capability when applied as an anode of sodium ion batteries (SIBs). The specific capacity was determined to be of 460 mAh·g −1 at 0.1 A·g −1 after 100 cycles. It also displays superior capacity of 183 mAh·g −1 at 0.5 A·g −1 for 200 cycles when paired with Na 3 V 2 (PO 4 ) 3 cathode. Applied as the anode for potassium ion batteries (PIBs), it exhibits a satisfactory specific capacity of 345 mAh·g −1 at 0.1 A·g −1 after 50 cycles.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Life Science Fujian Normal University 350007 Fuzhou China
Engineering Research Center of Polymer Green Recycling of Ministry of Education College of Environment and Resources College of Carbon Neutral Modern Industry Fujian Normal University 350007 Fuzhou China
Fujian Key Laboratory of Pollution Control and Resource Reuse 350007 Fuzhou China
Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials Fuzhou University 350002 Fuzhou China
Key Laboratory of Advanced Energy Materials Chemistry, Ministry of Education College of Chemistry Nankai University 300071 Tianjin China
Funding
National Natural Science Foundation of China · Talent of Fujian Young Eagle Program of Fujian Province · Fujian Province · Research and Development Program of China
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