A Facile Route to Flowerlike Bi₂S₃ Constructed by Polycrystalline Nanoplates with Enhanced Electrochemical Properties

Abstract

In this work, hierarchical flowerlike Bi 2 S 3 structures constructed by polycrystalline nanoplates combined with urchinlike and wirelike Bi 2 S 3 were synthesized by using a thioglycolic acid assisted solvothermal method. On the basis of the time-dependent experimental results, an anion exchange process and a self-assembly mechanism were proposed to account for the growth mechanism of the synthesized flowerlike Bi 2 S 3 . In addition, the morphology and the

Engineering Bi2O3-Bi2S3 heterostructure for superior lithium storage

“…Even at a fast sweep rate of 10.0 mV s −1 , the BO-BS still retains the basic CV profile, suggesting that the electrochemical Li storage has barely been restricted by the transport of electrons and Li ions. These results indicate that our engineered BO-BS outperforms most reported Bi 2 O 3 and Bi 2 S 3 materials4567830313233, and is comparable to some well-designed sulfides such as Sb 2 S 3 @graphene34 and SnS@CNT35, suggesting the great potentiality of such heterostructures.…”

“…The BO-BS retains 423 mAh g −1 after 100 continuous cycles at a rate of 300 mA g −1 , drastically outperforming Bi 2 O 3 and Bi 2 S 3 (fabricated according to previous work5) components (Figure 3c) and numerous bismuth based electrodes6303132. For instance, Bi 2 S 3 /C meshes only maintained 362 mAh g −1 over 40 cycles under the same test condition6.…”

Carbon coated flower like Bi 2 S 3 grown on nickel foam as binder-free electrodes for electrochemical hydrogen and Li-ion storage capacities

“…Two obvious plateaus at À0.671 V and À0.980 V can be observed in the charging curve, indicating two different hydrogen adsorption sites for Bi 2 S 3 @C/Ni samples. Similar plateaus have been reported in the previous literature, [7,13,17] the hydrogen is first adsorbed into the interstitial sites/pores between Bi 2 S 3 nanosheets on the nickel foam and then enters into the interlayers of Bi 2 S 3 crystals. In the discharging curve of Fig.…”

“…One effective method is to prepare nanostructured Bi 2 S 3 , which offers high surface to volume ratio, high surface area, enhanced electron transport, and reduced strain associated with the intercalation process. [15,17] Another approach is focused on the formation of composition between Bi 2 S 3 and carbon. For example, carboncoated Bi 2 S 3 nanomeshes with large capacity and stable cyclability have been fabricated.…”

Strongly Coupled Bi2S3@CNT Hybrids for Robust Lithium Storage

“…[ 9 ] In addition, Bi 2 S 3 has been explored as promising host for hydrogen and lithium storage in particular due to its unique laminar structure. [ 13 ] wileyonlinelibrary.com between Bi 2 S 3 and functional CNT in the hybrid. The capacity is ≈70% and ≈420% greater than that of graphite by mass and by volume, respectively, which can translate to a signifi cant enhancement in the battery energy.…”