Article
Chemistry, Physical
Ran Liu, Xiaoning Zhao, Liang Liang, Ran Li, Peilei Fan, Jingjing Li, Haibo Zhao
Summary: A spongy three-dimensional (3D) porous MnO/C composite with homogeneous distribution and uniform size ultrafine MnO nanoparticles embedded into 3D porous carbon network was fabricated. The composite exhibited improved electrical conductivity and effectively restrained the crushing and pulverizing of the electrode. As an anode for LIBs, it demonstrated superior rate capability and excellent cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yuyang Cao, Shiqiang Wei, Quan Zhou, Pengjun Zhang, Changda Wang, Kefu Zhu, Wenjie Xu, Xin Guo, Xiya Yang, Yixiu Wang, Xiaojun Wu, Shuangming Chen, Li Song
Summary: Transition metal carbides or nitrides, known as MXenes, are promising two-dimensional materials for energy conversion and storage. The surface chemistry of MXenes can be tuned to influence their physicochemical properties. In this study, Ti2NT (x) MXene with -Cl and -O terminations was obtained through copper chloride molten salt etching at a low temperature. The surface terminations were found to affect the lithium-ion storage performance.
Article
Chemistry, Physical
Samantha Husmann, Marie Besch, Bixian Ying, Anika Tabassum, Michael Naguib, Volker Presser
Summary: Mixed-metal oxides (MMOx) are versatile in energy conversion and electrochemical energy storage. Layered mixed-metal carbides (MXenes) are used as templates to prepare MMOx, which have uniform metal distribution. The Ti-to-Nb ratio in MXene affects the derived oxide composition. MXene-derived MMOx exhibit good electrochemical performance as Li-ion battery electrodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Energy & Fuels
Yunjie Li, Stefanie Arnold, Samantha Husmann, Volker Presser
Summary: The rapid growth of electric vehicles and electronic devices has led to a significant increase in the number of spent batteries that have reached the end of their life. It is crucial to find a sustainable and efficient approach to battery recycling. A type of MXene material, AD-Ti(3)C(2)Tz electrode, has been developed and directly used as free-standing anodes for lithium-ion and sodium-ion batteries without the need for binder or carbon additives. The AD-Ti(3)C(2)Tz electrode exhibits excellent electrochemical performance and can be easily recycled, further converted into TiO2/C hybrids with adjustable carbon content, enabling its second life in various applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Chenyang Li, Dongdong Zhang, Jin Cao, Pengfei Yu, Manunya Okhawilai, Jin Yi, Jiaqian Qin, Xinyu Zhang
Summary: A NiFe-LDH/Ti3C2 MXene hybrid with superior electrochemical performance for lithium storage was prepared and studied, showing great potential for application in energy storage.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Guang-He Dong, Yu-Qin Mao, Yuan-Qing Li, Pei Huang, Shao-Yun Fu
Summary: This article introduces a self-supporting 3D MXene-Carbon nanotubes-Cellulose-LiFePO4 (3D-MCC-LFP) cathode, which offers higher capacity, faster transport, and better electrochemical performance compared to traditional LFP cathodes.
ELECTROCHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Chuanliang Wei, Liwen Tan, Yuchan Zhang, Baojuan Xi, Shenglin Xiong, Jinkui Feng
Summary: Organic electrode materials have potential for rechargeable batteries, but low electrical conductivity and dissolution in organic liquid electrolytes hinder their development. MXene/organics heterostructures are designed to address these issues, improving rate capability and cycling performance. These heterostructures can also be applied in other fields.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Xianping Du, Ying Huang, Zhenhe Feng, Jiaming Wang, Xu Sun
Summary: Silicon-based materials are promising for their high capacity and availability, but their limited electrical conductivity and large volume expansion impede extensive application. In this study, Si cores were decorated with carbon-MXene and poly(3,4-ethylenedioxythiophene) (PEDOT) to overcome these barriers. The resulting Si-x@C-MXene@PEDOT particles featured a core-bishell structure, providing a robust buffer layer and excellent conductivity-promoting layer, which significantly improved electrochemical performance and lithium storage capability. This work opens up possibilities for larger-scale applications of silicon-based materials.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Mengmeng Yang, Liwei Jin, Mingyi He, Zao Yi, Tao Duan, Weitang Yao
Summary: Low silicon oxide shows promise as an anode material for LIBs and KIBs due to its high theoretical capacity, but faces challenges such as volume effects and poor intrinsic electronic conductivity. By synthesizing SiOx@C anodes, the cyclic stability and capacity of low silicon oxide have been improved, making it a promising option for future applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jieun Kim, Yongho Shin, Byoungwoo Kang
Summary: Low-cost Fe can be used as an alternative to high-cost d(0)-species for the formation of cation-disordered rocksalt Li-excess (DRX) materials. However, Fe-based DRX materials have several challenges, such as large voltage hysteresis, low electrochemical activity, and poor cyclability. In this study, a novel Li-Fe-Ti-Mo electrode material (LFTMO) with high capacity and reasonable stability is reported. The introduction of redox-active Mo4+/5+ into Fe-based DRX materials helps stabilize the oxygen redox reaction and suppress the Fe redox reaction, improving the performance of the electrode material.
Article
Chemistry, Physical
Wen Ding, Xiaozhong Wu, Yanyan Li, Shuo Wang, Zhichao Miao, Pengfei Zhou, Jin Zhou, Shuping Zhuo
Summary: A novel three-dimensional graphene-wrapped Co0.85Se@C composite was prepared through a capillary evaporation-induced drying method, resulting in a compact material with strong covalent interaction. The composite showed high volumetric capacity, good cycling stability, and rate performance, making it a promising electrode material for lithium-ion batteries.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Stefanie Arnold, Antonio Gentile, Yunjie Li, Qingsong Wang, Stefano Marchionna, Riccardo Ruffo, Volker Presser
Summary: Due to their versatile properties and excellent electrical conductivity, MXenes have become attractive materials for alkali metal-ion batteries. In this study, the optimized antimony/MXene hybrid electrodes were achieved for high-performance sodium-ion batteries through variation of the synthesis parameters and material design strategy.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Chemistry, Multidisciplinary
Qian Zhao, Qizhen Zhu, Yu Liu, Bin Xu
Summary: MXenes, with their metallic conductivity, strong chemical adsorption ability to polysulfides, and effective catalytic effect, show promising potential for high-performance Li-S batteries. Their use in sulfur cathode, interlayer between cathode and separator, and Li anode can enhance electrochemical performance and address challenges in Li-S battery application.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Chen Zhao, Zengyan Wei, Jie Zhang, Peigang He, Xiaoxiao Huang, Xiaoming Duan, Dechang Jia, Yu Zhou
Summary: In this study, a ball-milling assisted exfoliation method was used to produce delaminated MXene nanosheets, which were then combined with SnO2 nanocrystals to form SnO2/MXene nanocomposites. These nanocomposites exhibited high capacity and long cycling life.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Zeyu Yuan, Lili Wang, DongDong Li, Junming Cao, Wei Han
Summary: The development of sodium-ion battery anode materials with excellent performance has improved cycling stability and rate capabilities, potentially expanding the practical applications of sodium-ion batteries.