1
|
Chen P, Pei X, Liu R, Wang J, Lu Y, Gu H, Tan L, Du X, Li D, Wang L. Synergy Between Surface Confinement and Heterointerfacial Regulations with Fast Electron/Ion Migration in InSe-PPy for Sodium-Ion Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304892. [PMID: 37691021 DOI: 10.1002/smll.202304892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/28/2023] [Indexed: 09/12/2023]
Abstract
Layered indium selenide (InSe) is a new 2D semiconductor material with high carrier mobility, widely adjustable bandgap, and high ductility. However, its ion storage behavior and related electrochemical reaction mechanism are rarely reported. In this study, InSe nanoflakes encapsulated in conductive polypyrrole (InSe@PPy) are designed in consideration of restraining the severe volume change in the electrochemical reaction and increasing conductivity via in situ chemical oxidation polymerization. Density functional theory calculations demonstrate that the construction of heterostructure can generate an internal electric field to accelerate electron transfer via additional driving forces, offering synergistically enhanced structural stability, electrical conductivity, and Na+ diffusion process. The resulting InSe@PPy composite shows outstanding electrochemical performance in the sodium ion batteries system, achieving a high reversible capacity of 336.4 mA h g-1 after 500 cycles at 1 A g-1 and a long-term cyclic stability with capacity of 274.4 mA h g-1 after 2800 cycles at 5 A g-1 . In particular, the investigation of capacity fluctuation within the first cycling reveals the alternating significance of intercalation and conversion reactions and evanescent alloying reaction. The combined reaction mechanism of insertion, conversion, and alloying of InSe@PPy is revealed by in situ X-ray diffraction, ex situ electrochemical impedance spectroscopy, and transmission electron microscopy.
Collapse
Affiliation(s)
- Penglei Chen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, P. R. China
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450001, P. R. China
| | - Xiangdong Pei
- Shanxi Supercomputing Center, Lvliang, 033000, P. R. China
| | - Ruyi Liu
- National Supercomputing Center in Zhengzhou, Zhengzhou, 450001, P. R. China
| | - Jinbao Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450001, P. R. China
| | - Yuemeng Lu
- National Supercomputing Center in Zhengzhou, Zhengzhou, 450001, P. R. China
| | - Huaiqiang Gu
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Lei Tan
- Institute of Theoretical Physics, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xin Du
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450001, P. R. China
| | - Dan Li
- College of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450001, P. R. China
| | - Luxiang Wang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, 830017, P. R. China
| |
Collapse
|
2
|
Xie M, Li C, Zhang S, Zhang Z, Li Y, Chen XB, Shi Z, Feng S. Topological Insulator Bi 2 Se 3 -Assisted Heterostructure for Ultrafast Charging Sodium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301436. [PMID: 37078904 DOI: 10.1002/smll.202301436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/27/2023] [Indexed: 05/03/2023]
Abstract
The development of fast charging materials offers a viable solution for large-scale and sustainable energy storage needs. However, it remains a critical challenge to improve the electrical and ionic conductivity for better performance. Topological insulator (TI), a topological quantum material that has attracted worldwide attention, hosts unusual metallic surface states and consequent high carrier mobility. Nevertheless, its potential in promising high-rate charging capability has not been fully realized and explored. Herein, a novel Bi2 Se3 -ZnSe heterostructure as excellent fast charging material for Na+ storage is reported. Ultrathin Bi2 Se3 nanoplates with rich TI metallic surfaces are introduced as an electronic platform inside the material, which greatly reduces the charge transfer resistance and improves the overall electrical conductivity. Meanwhile, the abundant crystalline interfaces between these two selenides promote Na+ migration and provide additional active sites as well. As expected, the composite delivers the excellent high-rate performance of 360.5 mAh g-1 at 20 A g-1 and maintains its electrochemical stability of 318.4 mAh g-1 after 3000 long cycles, which is the record high for all reported selenide-based anodes. This work is anticipated to provide alternative strategies for further exploration of topological insulators and advanced heterostructures.
Collapse
Affiliation(s)
- Minggang Xie
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Chunguang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Siqi Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Zhe Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Yuxin Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, VIC, 3053, Australia
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, P. R. China
| |
Collapse
|
3
|
Oxygen Vacancies and Bi2S3 Nanoparticles Co-sensitized TiO2 Nanotube Arrays for Enhanced Photoelectrochemical Sensing of Chlorpyrifos. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|