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Sn-doped induced stable 1T-WSe2 nanosheets entrenched on N-doped carbon with extraordinary half/full sodium/potassium storage performance by Yan-Ru Liu; Ze-Wei Lei; Ren-Ping Liu; Xin-Ye Li; Pei-Xun Xiong; Yong-Jin Luo; Qing-Hua Chen; Ming-Deng Wei; Ling-Xing Zeng; Qing-Rong Qian is a scholarly article available to read on EtoBox.

What is Sn-doped induced stable 1T-WSe2 nanosheets entrenched on N-doped carbon with extraordinary half/full sodium/potassium storage performance about?

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 mAhÁg -1 at 1.0 AÁg -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 mAhÁg -1 at 0.1 AÁg -1 after 100 cycles. It also displays superior capacity of 183 mAhÁg -1 at 0.5 AÁg -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 mAhÁg -1 at 0.1 AÁg -1 after 50 cycles.

Author

Yan-Ru Liu; Ze-Wei Lei; Ren-Ping Liu; Xin-Ye Li; Pei-Xun Xiong; Yong-Jin Luo; Qing-Hua Chen; Ming-Deng Wei; Ling-Xing Zeng; Qing-Rong Qian

Publisher

Springer Science and Business Media LLC

Published

2023

Language

EN