Rationally designed nanostructured metal chalcogenides for advanced sodium-ion batteries

Recent developments in nanotechnology-based printing electrode systems for electrochemical sensors.

Bismuth-based metal–organic frameworks and their derivatives: Opportunities and challenges

Owing to excellent conductivity and abundant surface terminals, MXene-based heterostructures have been intensively investigated as energy storage materials. However, elaborate design of the structure and composition of MXene-based hybrids towards superior electrochemical performance is still challenging. Herein, we present an ingenious leaf-inspired design for preparing a unique Sb2S3/nitrogen-doped Ti3C2Tx MXene (L-Sb2S3/Ti3C2) hybrid. In-situ TEM observations reveal that the leaflike Sb2S3 nanoparticles with numerous mesopores can well relieve the large volume changes via an inward pore filling mechanism with only 20% outward expansion, whereas highly conductive N-doped Ti3C2Tx nanosheets can serve as the robust mechanical support to reinforce the structural integrity of the hybrid. Benefiting from the structural and constituent merits, the L-Sb2S3/Ti3C2 anode fabricated exhibits a fast sodium storage behavior in terms of outstanding rate capability (339.5 mA h g−1 at 2,000 mA g−1) and high reversible capacity at high current density (358.2 mA h g−1 at 1,000 mA g−1 after 100 cycles). Electrochemical kinetic tests and theoretical simulation further manifest that the boosted electrochemical performance mainly arises from such a unique leaf-like Sb2S3 mesoporous nanostructure with abundant active sites, and enhanced Na+ adsorption energy on the heterojunction formed between Sb2S3 nanoparticles and Ti3C2 matrix.

Leaf-inspired design of mesoporous Sb2S3/N-doped Ti3C2Tx composite towards fast sodium storage

Sb2S3-Bi2S3 microrods with the combined action of carbon encapsulation and rGO confinement for improving high cycle stability in sodium/potassium storage

Reduced graphene oxide (RGO) decorated Sb2S3 nanorods as anode material for sodium-ion batteries

Facile synthesis of MSnO3 (M=Mn, Co, Zn)/reduced graphene oxide nanocomposites as anode materials for sodium-ion batteries

BiSbS3@N-doped carbon (NC) core-shell nanorods were prepared through a simple preparation process. As anode materials for sodium-ion batteries (SIBs), BiSbS3@NC core-shell nanorods present excellent electrochemical performance with higher specific capacity and better rate capability compared with the unmodified pristine BiSbS3 nanorods. The BiSbS3@NC electrode delivers high sodium storage capacity (771.5 mA h g-1 in the 2nd cycle) and excellent rate performance (capacity of 518.4 mA h g-1 at 1000 mA g-1). The improvement in electrochemical performance results from the coated conductive NC layer which brings about fast ion/electron transfer and buffers volume expansion. The BiSbS3@NC core-shell nanorods are thus promising high performance anode materials for SIBs.

BiSbS3@N-doped carbon core–shell nanorods as efficient anode materials for sodium-ion batteries

Carbon-encapsulated Bi2Te3 derived from metal-organic framework as anode for highly durable lithium and sodium storage

The invention relates to a reduced graphene oxide modified antimony trisulfide battery anode material. The battery anode material is prepared by following steps: (1) adding Sb2S3 powder into anhydrousethanol, then dispersing the solution into a graphene oxide solution, and stirring the mixed solution until the mixed solution becomes uniform and stable to obtain a precursor solution; (2) transferring the precursor solution obtained in the step (1) to a hydrothermal reactor, heating the hydrothermal reactor to carry out reactions, and cooling the reactor to the room temperature to obtain suspension; and (3) filtering the suspension obtained in the step (2), washing, and drying to obtain the target product. Compared with the prior art, an Sb2S3 nano rod is prepared by a hydrothermal method,the preparation method is simple, the process is easy to control, the raw materials are easily available, and the cost is low. The prepared reduced graphene oxide modified Sb2S3 nano composite structure has an excellent electrochemical sodium storage performance and is a good sodium ion battery anode material.

Siying Wen

Papers

Reduced graphene oxide (RGO) decorated Sb2S3 nanorods as anode material for sodium-ion batteries

Facile synthesis of MSnO3 (M=Mn, Co, Zn)/reduced graphene oxide nanocomposites as anode materials for sodium-ion batteries

BiSbS3@N-doped carbon core–shell nanorods as efficient anode materials for sodium-ion batteries

Carbon-encapsulated Bi2Te3 derived from metal-organic framework as anode for highly durable lithium and sodium storage

Reduced graphene oxide modified antimony trisulfide battery anode material