Article
Chemistry, Multidisciplinary
Siwu Li, Haolin Zhu, Yuan Liu, Qiang Wu, Shijie Cheng, Jia Xie
Summary: An in situ reaction approach utilizing metal-organic frameworks as nano-reactors and pore-formers is developed to produce a mesoporous carbon-based host embedded with monodispersed tin clusters. The resulting hybrid host exhibits excellent sodium affinity, allowing for rapid sodium infusion and low nucleation overpotential, as well as uniform sodium deposition. Furthermore, this host demonstrates high Coulombic efficiency, outstanding rate capability, and long cycle life. This work also enables the achievement of high-energy/power-density anode-less and anode-free sodium cells, providing a promising strategy for developing high-performance metal batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Su-Ho Cho, Jong-Heon Kim, Il-Gyu Kim, Jeong-Ho Park, Ji-Won Jung, Hyun-Suk Kim, Il-Doo Kim
Summary: Sodium-ion batteries (SIBs) are being studied more due to the affordability of sodium (Na) and their similarity to lithium-ion batteries (LIBs). By incorporating molybdenum sulfide (MoS2) into carbon nanofibers encapsulated with reduced graphene oxide (MoS2@CNFs@rGO) composite, high-performance anodes for SIBs were achieved with increased capacity and improved stability over cycles. The synergy between carbon nanofibers (CNFs) and reduced graphene oxide (rGO) provided efficient electron pathways and prevented sulfur dissolution, offering a new perspective on MoS2-based anode materials for practical SIBs.
Article
Materials Science, Multidisciplinary
Shuo Li, Junsheng Zhu
Summary: Novel Sn/reduced graphene oxide/carbon nanofibers ternary hybrids were synthesized via one-step synthesis process. Sn nanoparticles were uniformly sandwiched in reduced graphene oxide layers and had good contact with carbon nanofibers. The ternary hybrids showed superior lithium storage performance compared to the binary hybrids of Sn/reduced graphene oxide and Sn/carbon nanofibers. After 90 cycles, the reversible capacity of the ternary hybrids reached 643 mAh g-1. Importantly, electrochemical impedance spectroscopy measurements confirmed the effective reduction of charge transfer resistance through the integration of Sn, reduced graphene oxide, and carbon nanofibers.
Article
Engineering, Environmental
Miheng Dong, Patcharin Chen, Kun Zhou, Minsu Liu, Sebastian Thomas, Harold A. Coleman, Dan Li, James B. Fallon, Mainak Majumder, Helena C. Parkington, John S. Forsythe
Summary: In this study, flexible three-dimensional and two-dimensional recording electrodes made of reduced graphene oxide were introduced for long-term and acute recordings. The results showed that these electrodes had good recording capabilities and excellent biocompatibility in vivo.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Wenhui Ma, Jiankai Wang, Tao Wu, Jing Wen, Baoru Zhao, Liang Wei, Yong Zhang, Shan Fan
Summary: Nitrogen-doped graphene quantum dots/reduced graphene oxide composite hydrogels were synthesized via a hydrothermal approach and exhibited excellent electrochemical performance, especially in binder-free symmetric supercapacitors with high specific capacitance and good cycle stability.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Xinning Mao, Xin Gu, Sheng Wen, Li Zhang, Pengcheng Dai, Liangjun Li, Dandan Liu, Dawei Li, Zhi Li, Kuitong Zhang, Xuebo Zhao
Summary: The performance of NiSe anode materials can be enhanced by a flexibly designed three-dimensional structure (NiSe@C/rGO), leading to superior rate capability and excellent cycling performance. Mechanistic studies reveal a reversible conversion reaction mechanism for K storage in NiSe@C/rGO, with high contribution of pseudocapacitance confirmed by CV measurements.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Multidisciplinary
Jingyi Wang, Shaojie Lu, Mingyu Ye, Xiaowan Zhan, Hongbing Jia, Xin Liao, Antonio Francisco Arcanjo de Araujo Melo
Summary: Aramid nanofibers/reduced graphene oxide (ANFs/RGO) film electrodes were prepared by vacuum-assisted filtration and hydroiodic acid reduction. These film electrodes exhibit a combination of mechanical and electrochemical properties, with a tensile strength of 184.5 MPa and a volumetric specific capacitance of 134.4 F/cm(3) at a current density of 0.125 mA/cm(2). The film electrodes also show a superior cycle life with 94.6% capacitance retention after 5000 cycles. This type of free-standing film electrode may have great potential for flexible energy-storage devices.
Article
Nanoscience & Nanotechnology
Susmita Sarkar, Hernando J. Gonzalez-Malabet, Megan Flannagin, Alex L'Antigua, Pavel D. Shevchenko, George J. Nelson, Partha P. Mukherjee
Summary: In this study, we provide a comprehensive understanding of the electrochemical and mechanics coupling and electrode/electrolyte interfacial interactions in alloying Sn electrodes through multimodal analytics, including electrochemical, microscopy, and tomography analyses.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Osman Eksik, Melih Besir Arvas, Reha Yavuz
Summary: This study aims to fabricate high-performance electrodes for supercapacitors. Polymer nanofibers containing different weight ratios of graphene oxide were used as precursors, and the electrospinning method and carbonization process were employed to produce carbon nanofiber/reduced graphene oxide (CNF/rGO) composites. The supercapacitor electrode prepared with carbon nanofiber containing 10-wt% rGO exhibited high specific capacitance and energy density, indicating its potential for energy storage applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Han Qiang, Wen He, Feiyu Guo, Jizhou Cao, Rui Wang, Zhihao Guo
Summary: In this study, self-supporting flexible supercapacitor electrodes made of TOCN/RGO/PPy film were prepared and exhibited excellent electrochemical performance and mechanical stability. The electrode showed high capacitance retention in charge-discharge cycles and bending tests. Furthermore, a solid-state supercapacitor assembled with CNF hydrogel films displayed outstanding specific capacitance and energy density.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Hengjia Shao, Xiangmin Feng, Yipeng Liu, Yong Zhang, Linxuan Han, Yang Gao, Na Wang, Xintao Zhang, Fuyi Jiang, Caifu Dong
Summary: Graphene-loaded indium sulfide nanosheets array composites have been synthesized to enhance charge transfer and ion diffusion kinetics, resulting in high specific capacity and remarkable rate performance. The conversion mechanism for energy storage and successful fabrication of a full cell demonstrate great prospects for practical application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Mohammad S. Islam, Shaikh N. Faisal, Liyong Tong, A. K. Roy, Jin Zhang, Enamul Haque, Andrew Minett, Chun H. Wang
Summary: The study demonstrates that N-doped reduced graphene oxide wrapped carbon micro fibres have high electrochemical capacitance properties, making them promising materials for flexible fiber supercapacitors and sodium-ion batteries with excellent performance. The micro-fiber electrodes exhibit high performance as supercapacitors and impressive electrochemical performances as anodes for sodium-ion batteries.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Materials Science, Multidisciplinary
Lulu Mo, Gangyong Zhou, Peng Ge, Yue-E. Miao, Tianxi Liu
Summary: The study investigates the synthesis of leaf-like PTPAn nanosheets on carbon nanofibers through in-situ polymerization, demonstrating excellent electrochemical performance and stable cycling life. Moreover, it is shown that the effective coupling between active PTPAn and conductive CNFs can provide fast electron/ion-shuttling channels. This design is significant for obtaining advanced freestanding electrode systems.
SCIENCE CHINA-MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Meltem Yanilmaz, Elham Abdolrazzaghian, Lei Chen, Bulin Atici, Juran Kim
Summary: Sodium-ion batteries (SIBs) have gained attention due to their abundant resources and low cost. Carbon nanofibers are considered promising candidates for flexible electrodes, and the use of environmentally friendly polymers is crucial for high-performance flexible electronics. In this study, poly(vinylpyrrolidone) (PVP) solutions were spun into nanofibers using centrifugal spinning. The effect of solvent system and solution concentration on the fiber morphology was investigated, and different heat treatments were studied to further understand the carbon nanofiber (CNF) morphology. Flexible CNFs were fabricated and used as binder-free anodes in SIBs, showing high reversible capacity when combined with SnO2. The results demonstrate the potential of PVP-based flexible SnO2@CNFs for sodium-ion batteries.
Article
Chemistry, Physical
Kang Guo, Xu Wang, Yulin Min, Qunjie Xu
Summary: In this study, a free-standing, binder-free electrode composed of three-dimensional N-doped carbon nanofibers and tin selenide was developed through electrospinning and thermal treatment. The electrode exhibited good electrical conductivity and flexibility and showed superior specific capacity, ultra-long lifetime, and excellent rate performance as a stand-alone anode for sodium-ion batteries. This work provides a promising approach for developing flexible energy storage devices.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jian Yang, Tianyi Wang, Xin Guo, Xiaoxue Sheng, Jiabao Li, Chengyin Wang, Guoxiu Wang
Summary: This study reports a free-standing and flexible Sb2S3/Ti3C2Tx composite film for high-capacity, fast and stable sodium storage. The hybrid nanostructure of Sb2S3 nanowires anchored between Ti3C2Tx nanosheets enables outstanding rate performance and cyclic stability in the composite anodes. The flexible sodium-ion capacitors using Sb2S3/Ti3C2Tx anodes and active carbon/reduced graphene oxide paper cathodes exhibit superior energy and power densities, as well as excellent cycling performance.
Article
Materials Science, Multidisciplinary
Pauline Jaumaux, Shijian Wang, Shuoqing Zhao, Bing Sun, Guoxiu Wang
Summary: In this study, N-methylformamide (NMF) was introduced as an organic solvent and its solvation structure was modulated to obtain a stable organic/aqueous hybrid electrolyte for high-voltage Zn batteries. NMF showed excellent stability against Zn metal anodes and reduced the availability of free water molecules by creating numerous hydrogen bonds, allowing for the use of high-voltage Zn||LiMn2O4 batteries. The introduction of NMF prevented hydrogen evolution reaction and promoted the formation of an F-rich solid electrolyte interphase, thereby inhibiting dendrite growth on Zn anodes. The Zn||LiMn2O4 full cells exhibited a high average Coulombic efficiency of 99.7% over 400 cycles.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Physics, Applied
Chaoyue Zhang, Junan Feng, Xin Guo, Jinqiang Zhang, Wenxue Zhang, Lixue Zhang, Jianjun Song, Guangjie Shao, Guoxiu Wang
Summary: Core-shell SiO2@Ti3C2Tx MXene hollow spheres are used as multifunctional catalysts to enhance the performance of Li-S batteries. The dual-polar and dual-physical properties of SiO2 core and MXene shell provide multiple defense lines to the shuttle effect of lithium polysulfides (LiPSs). The SiO2@MX/S electrodes exhibit high capacity, remarkable cycling stability, and low capacity decay, highlighting the significance of core-shell dual-polar structural sulfur catalysts for practical application in advanced Li-S batteries.
APPLIED PHYSICS LETTERS
(2023)
Editorial Material
Multidisciplinary Sciences
Guoxiu Wang
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Physical
Jian Yang, Xin Guo, Hong Gao, Tianyi Wang, Zhigang Liu, Qing Yang, Hang Yao, Jiabao Li, Chengyin Wang, Guoxiu Wang
Summary: This study reports a surface and interface engineering strategy to improve the electrochemical performance of sodium-ion batteries by surface engineering of tin nanorods via N-doped carbon layers (Sn@NC). The authors demonstrate that uniform surface modification can enhance electron and sodium transport kinetics, control alloy pulverization, and form a stable organic-inorganic solid-electrolyte interface (SEI). It is also discovered that the diethylene glycol dimethyl ether electrolyte with optimized Na+ solvation structure can significantly improve reaction kinetics. Consequently, Sn@NC anodes achieve extra-long cycling stability and the full cell exhibits high energy density, excellent high-rate capability, and long cycle life over a wide temperature range.
ADVANCED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Penghao Song, Jian Yang, Chengyin Wang, Tianyi Wang, Hong Gao, Guoxiu Wang, Jiabao Li
Summary: Heterostructure engineering combined with carbonaceous materials has shown great promise for improving the performance of transition metal sulfide electrodes in high-performance sodium storage. A specific iron sulfide-based heterostructure (Fe7S8/FeS2/NCNT) with nitrogen-doped carbon nanotubes has been prepared, which demonstrated high reversible capacity, superior rate capability, long-term cycling stability, and outstanding rate capability in different electrolytes. The outstanding performance is mainly attributed to fast sodium-ion diffusion kinetics, high capacitive contribution, and convenient interfacial dynamics.
NANO-MICRO LETTERS
(2023)
Review
Electrochemistry
Zefu Huang, Pauline Jaumaux, Bing Sun, Xin Guo, Dong Zhou, Devaraj Shanmukaraj, Michel Armand, Teofilo Rojo, Guoxiu Wang
Summary: Rechargeable room-temperature sodium-sulfur (Na-S) and sodium-selenium (Na-Se) batteries have attracted extensive attention for large-scale energy storage applications due to their low cost and high theoretical energy density. The optimization of electrode materials and investigation of mechanisms are crucial for achieving high energy density and long-term cycling stability of Na-S(Se) batteries.
ELECTROCHEMICAL ENERGY REVIEWS
(2023)
Article
Electrochemistry
Zenghui Lin, Junan Feng, Wendong Liu, Lu Yin, Wanyang Chen, Chuan Shi, Jianjun Song
Summary: A novel Fe3C@N-CS catalyst was prepared and used to modify the separator of Li-S batteries, effectively trapping and catalyzing the conversion of polysulfide, thus improving the cycling stability and reaction kinetics of the battery.
Review
Chemistry, Multidisciplinary
Jing Xu, Yashuang Qiu, Jianhao Yang, Haolin Li, Pingan Han, Yang Jin, Hao Liu, Bing Sun, Guoxiu Wang
Summary: This review comprehensively discusses the latest advances in modifying separators for high-performance sodium-sulfur/selenium/iodine batteries. The article first discusses the reaction mechanisms of each battery system, and then summarizes different separator modification strategies for regulating the shuttle effect of polysulfides/polyselenides/polyiodides, including applying electrostatic repulsive interaction, introducing conductive layers, improving sieving effects, enhancing chemisorption capability, and adding efficient electrocatalysts. Future perspectives on the practical application of modified separators in high-energy rechargeable batteries are also provided.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Junan Feng, Chuan Shi, Hanghang Dong, Chaoyue Zhang, Wendong Liu, Yu Liu, Tianyi Wang, Xiaoxian Zhao, Shuangqiang Chen, Jianjun Song
Summary: A novel multifunctional electrocatalyst was designed to enhance the polysulfide conversion kinetics in lithium-sulfur batteries. The material exhibited a hollow structure and a conductive framework, resulting in high reversible capacity, high-rate capability, and reliable cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Review
Nanoscience & Nanotechnology
Ailing Song, Shenglu Song, Manman Duanmu, Hao Tian, Hao Liu, Xiujuan Qin, Guangjie Shao, Guoxiu Wang
Summary: Developing energy production, storage, and conversion technologies based on sustainable or renewable energy is crucial for addressing the energy and environmental crisis. Electrochemical water splitting is a promising approach for producing green hydrogen. The design of catalytic materials and understanding the reaction mechanisms are key focus areas for improving electrochemical hydrogen evolution reaction (HER). Recent efforts have been focused on synthesizing non-noble metallic heterostructures with synergistic effects, demonstrating high activity and stability in industrial conditions for HER.
Review
Chemistry, Multidisciplinary
Yufei Zhao, Jinqiang Zhang, Xin Guo, Xianjun Cao, Shijian Wang, Hao Liu, Guoxiu Wang
Summary: MXenes have been extensively studied for their desirable properties in energy-related applications. However, their practical use has been hindered by slow catalytic reaction kinetics and limited active sites. Surface engineering strategies, including termination engineering, defect engineering, heteroatom doping engineering, secondary material engineering, and extension to MXene analogues, have been investigated to overcome these limitations and enhance the electrocatalytic performance of MXenes. This review summarizes the progress and challenges of MXenes in electrochemical conversion reactions, and emphasizes the need for further understanding and development of MXene-based materials to meet the growing demand for sustainable energy solutions.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Yuhan Xie, Xin Chen, Kaian Sun, Jinqiang Zhang, Wei-Hong Lai, Hao Liu, Guoxiu Wang
Summary: We accelerate the kinetics of acid oxygen reduction reaction (ORR) by using a bi-functional ligand-assisted strategy to pre-control the distance of hetero-metal atoms. The synthesized Fe-Zn diatomic pairs on carbon substrates show outstanding ORR performance with an ultrahigh half-wave potential of 0.86 V vs. RHE in acid electrolyte. The specific distance range of around 3 angstrom between Fe-Zn diatomic pairs is the key to their ultrahigh activity, averaging the interaction between hetero-diatomic active sites and oxygen molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Materials Science, Multidisciplinary
Wen-Dong Liu, Xiao Tang, Jun-An Feng, Chao-Yue Zhang, Hao Liu, Chuan Shi, Xiao-Xian Zhao, Jian-Jun Song
Summary: This review examines the application of vacancy engineering in lithium-sulfur batteries. It discusses the electrochemistry of LSBs, the challenges they face, and improvement strategies. Various methods for preparing and characterizing vacancies, such as oxygen vacancies, sulfur vacancies, selenium vacancies, anion vacancies, and cation vacancies, are summarized. The latest applications of vacancy engineering in LSBs are also discussed, along with prospects and insights for further investigation and practical application.
Review
Chemistry, Multidisciplinary
Jing Xu, Haolin Li, Yang Jin, Dong Zhou, Bing Sun, Michel Armand, Guoxiu Wang
Summary: Aqueous Zn metal batteries are competitive candidates for next-generation energy storage systems due to their safety, cost-effectiveness, and environmental friendliness. However, issues like dendrite growth, hydrogen evolution, surface passivation, and slow reaction kinetics hinder their practical application. This review discusses the regulation mechanisms of electrical-related interactions on the migration, desolvation, and deposition behaviors of Zn2+ ions. It also comprehensively reviews electric field regulation strategies to enhance Zn2+ ions diffusion and uniform Zn deposition. Future research directions for electrical-related strategies in building better Zn metal batteries are offered.
ADVANCED MATERIALS
(2023)
