Heterostructured CoS2/SnS2 encapsulated in sulfur-doped carbon exhibiting high potassium ion storage capacity

Ma, Yu; Ouyang, Yujia; Liang, Huanyu; Li, Ping; Shi, Jing; Wu, Jingyi; Liu, Shuai; Chen, Jingwei; Zhu, Yue; Wang, Huanlei

doi:10.1016/j.jcis.2024.01.176

Cited by 6 publications

(1 citation statement)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Obviously, the MSS is encapsulated by NSC (Figure d), and the HRTEM image in Figure e further confirms an amorphous characteristic of the NSC with a thickness of about 10–15 nm. The crystal spacing of 0.28 and 0.61 nm match the (101) crystal plane of SnS 2 and (110) plane of Mn 2 SnS 4 , respectively, which also confirms the heterointerfaces. − Furthermore, the multiple annuli in the selected area electron diffraction (SAED) demonstrate that the MSS@NSC favors a multiple crystalline nature. The EDX element maps in Figure f suggest the homogeneous dispersions of the Mn, Sn, S, N, and C throughout the MSS@NSC.…”

Section: Resultsmentioning

confidence: 55%

Heterostructured Mn–Sn Bimetallic Sulfide Nanocubes Confined in N, S-co-Doped Carbon Framework as High-Performance Anodes for Sodium-Ion Batteries

Li,

Ke,

Liu

et al. 2024

Langmuir

View full text Add to dashboard Cite

Benefiting from its high theoretical capacity, tin disulfide (SnS 2 ) draws abundant interest and attention for its promising practical prospect for sodium-ion batteries (SIBs). However, the huge volumetric variation in sodiation/desodiation reactions usually results in the fast decay of rate and cycling properties, which seriously obstructs its future applicable foregrounds. Herein, heterostructured Mn−Sn bimetallic sulfide nanocubes confined in N and S-codoped carbon (MSS@NSC) were rationally designed via a facile coprecipitation followed by a sulfurization strategy. When used as anodes for SIBs, the heterojunctions at the interfaces effectively accelerate the Na + diffusion rate to promote the sodium-storage reaction kinetics. The N and S-codoped carbon provides a rapid conductive framework for the fast charge transport during the sodium-storage process. Moreover, the beneficial confinement effect of the NSC layer effectively guarantees a superb cycle property for the MSS@NSC anode. The favorable synergistic effects between the highly conductive framework of the NSC and MSS heterostructure endow the MSS@NSC anode with satisfactory electrochemical Nastorage properties.

show abstract

Section: Resultsmentioning

confidence: 55%