Article
Chemistry, Physical
Siqi Li, Yanan Wei, Qiong Wu, Yuan Han, Guixiang Qian, Jiaming Liu, Chao Yang
Summary: In this experiment, Super p/MoS2 was synthesized and used as a cathode material for rechargeable aqueous zinc-ion batteries. Compared to normal MoS2, this material exhibited higher reversible capacity, good cycling stability, and rate capability. The electrochemical-specific capacity of this material in the Zn(CF3SO3)(2) electrolyte was significantly higher than that in the ZnSO4 electrolyte.
Article
Nanoscience & Nanotechnology
Hanfang Zhang, Yihe Zhang, Yanran Liu, Xiancheng Shi, Yingge Zhang, Liqi Bai, Qi Wang, Li Sun
Summary: This study presents a new VO-α-MnO2/CNPK/G composite material for improving the performance of α-MnO2 zinc-ion batteries. The introduction of VO improves the reversibility of Zn2+ adsorption/desorption, leading to better energy storage properties. The nanotube array structure of VO-α-MnO2/CNPK/G facilitates fast ion/electron transfer and stable microstructure.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Siqi Li, Qiong Wu, Daxiang Gui, Rongmei Liu, Yuan Han, Xin Cao, Chao Yang
Summary: Rechargeable aqueous zinc-ion battery using MnO2 as the cathode material shows great potential due to its high safety, low cost, and environmental friendliness. However, the structural instability and poor cyclability of MnO2 cathode are major drawbacks. In this study, a new cathode material (SP@Bicrystalline-MnO2) with two crystal forms of MnO2 and conductive carbon (SP) was developed, exhibiting excellent discharge capacity and coulombic efficiency.
Article
Materials Science, Multidisciplinary
Siqi Li, Yanan Wei, Qiong Wu, Yuan Han, Guixiang Qain, Jiaming Liu, Chao Yang
Summary: The PDA@MnO2 with unique spherical structure was synthesized by reacting KMnO4 with PDA, and it showed superior performance as the cathode material for aqueous zinc ion batteries compared to irregular PDA@MnO2. The spherical structure improved the electrochemical performance by enhancing the diffusion control process, leading to higher utilization rate and mass specific capacity for irregular PDA@MnO2. This excellent performance and novel structure make spherical PDA@MnO2 suitable for a wide range of energy storage applications.
Article
Chemistry, Multidisciplinary
Shujun Xu, Fengbo Wang, Qiqi Diao, Yutong Zhang, Guangda Li
Summary: In this paper, a stable single crystal β-MnO2 nanorod cathode material was prepared and showed high ionic diffusion kinetics and calculability when used as ZIBs cathode material. By optimizing the structural stability, ion conductivity, surface reactions, and phase control, the single-crystal MnO2 exhibited excellent cycling performance in zinc-ion storage, achieving a high specific capacity of 224.7 mA h g(-1) after 250 cycles under a current density of 0.3 A g(-1), while maintaining a Coulombic efficiency of 99.58%.
Article
Materials Science, Multidisciplinary
Junjie Zheng, Pei Shi, Chi Chen, Xin Chen, Yi Gan, Jingying Li, Jia Yao, Yin Yang, Lin Lv, Guokun Ma, Li Tao, Hanbin Wang, Jun Zhang, Liangping Shen, Houzhao Wan, Hao Wang
Summary: In this study, Mo-doped a-MnO2 was chosen as the cathode material and a stable N-H bond reinforced interaction was formed via NH4+ intercalation to stabilize the 2 x 2 tunnel structure of Mo-MnO2. Theoretical and experimental studies demonstrated the improved performance of the cathode in terms of cyclic stability and electrochemical performance. This work provides further understanding of the bond interaction between nonmetallic cations in the main materials of electrodes and contributes to the development of aqueous-based zinc-ion batteries with high energy density and long-term cycling capability.
SCIENCE CHINA-MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Zhen Liu, Han-bing He, Ze-xiang Luo, Xiao-feng Wang, Jing Zheng
Summary: To address the problems of poor cycling stability and slow ion diffusion in aqueous zinc-ion battery, a high-precision customized 3D printed MnO2 cathode was developed through direct ink writing. Rheological tests showed that the printing ink exhibited shear-thinning behavior with a storage modulus platform value exceeding 105 Pa. SEM images demonstrated that the customized mesh-layer structure remained intact after 100 cycles. The 3D structure with excellent mechanical strength effectively alleviated internal stress and provided a larger specific surface area. After 110 stable cycles, the specific capacity of the 3D printed cathode was three times higher than that of the 2D cathode at 50 mA/g.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Engineering, Environmental
Yang Li, Xu Li, Huan Duan, Shiyin Xie, Ruyu Dai, Jianhua Rong, Feiyu Kang, Liubing Dong
Summary: In this study, we report the scalable synthesis of an aerogel-structured MnO2 (A-MnO2) assembled by defect-rich ultrathin nanosheets for ZIBs. The A-MnO2 exhibits enhanced electrical conductivity and decreased Zn2+ diffusion energy barrier through V doping and its induced oxygen vacancies, and the ultrathin nanosheets-assembled aerogel structure favors the exposure of more electrochemically active sites and shortens the ion diffusion distance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Jiwei Xie, Guijing Liu, Jia Sun, Rundou Zheng, Wenwen Zhao, Tongtong Chu, He Lin, Yanbin Xu, Shanmin Gao, Zhuyin Sui
Summary: The compound of MnO2 and CNTs, α-MnO2/CNTs nanocomposites, with a cross-linked reticular structure, shows excellent performance in ZIBs, including high discharge capacity and cycling stability.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Hanfang Zhang, Yihe Zhang, Yanran Liu, Xiancheng Shi, Yingge Zhang, Liqi Bai, Qi Wang, Li Sun
Summary: The oxygen-deficient alpha-MnO2 nanotube integrated with graphene and N, P codoped cross-linked porous carbon nanosheet composite (VO-alpha-MnO2/CNPK/G) has been prepared for advanced zinc-ion batteries (ZIBs) with improved rate performance and cycle life. The introduction of VO in MnO2 reduces the Gibbs free energy of Zn2+ adsorption, making the adsorption/desorption process more reversible. The as-made battery exhibits high capacity and energy density, attributed to VO, and the composite structure enhances ion/electron transfer and stability. The electrochemical performance of VO-alpha-MnO2 is greatly improved with the addition of G and CNPK, achieving high capacity, energy density, and long cycle life.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Minfeng Chen, Jizhang Chen, Weijun Zhou, Xiang Han, Yagang Yao, Ching-Ping Wong
Summary: A all-round hydrogel electrolyte was developed using cotton, tetraethyl orthosilicate, and glycerol, exhibiting high ionic conductivity and excellent mechanical properties.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Jie Ji, Jia Yao, Yongchang Xu, Houzhao Wan, Bao Zhang, Lin Lv, Jingying Li, Nengze Wang, Zhaohan Zheng, Jun Zhang, Guokun Ma, Li Tao, Hanbin Wang, Yi Wang, Hao Wang
Summary: In this study, the introduction of Ni2+ into γ-MnO2 is proposed to promote proton migration kinetics, resulting in improved energy storage performance for aqueous Zn-MnO2 batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Ning Gao, Yang Song, Chang Li, Chaoquan Hu
Summary: This study explores the fundamental parameters that affect the cycle stability of zinc-ion batteries (ZIBs) with manganese-based cathodes from a structural stability perspective. MnO2 electrodes with different classical morphologies and sizes were synthesized, and their effects on the electrical properties and kinetics of ZIBs were analyzed and compared. The one-dimensional nanofibrous alpha-MnO2 exhibited the most stable nanostructure and faster chemical kinetics, making it a promising electrode material for ZIBs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Jiangfeng Gong, Hao Li, Kaixiao Zhang, Zhupeng Zhang, Jie Cao, Zhibin Shao, Chunmei Tang, Shaojie Fu, Qianjin Wang, Xiang Wu
Summary: Aqueous multivalent ion batteries, especially ZIBs, show promise for energy storage due to their safety, high ionic conductivity, and energy density. This study focuses on the zinc ion storage behavior of a PANI cathode, showing high capacity, cycle stability, and diffusion coefficient, making it a potential option for rechargeable aqueous ZIBs energy storage devices.
Article
Chemistry, Physical
Junchen Chen, Li Liao, Bin Sun, Xin Song, Mingshan Wang, Bingshu Guo, Zhiyuan Ma, Bo Yu, Xing Li
Summary: Aqueous zinc-ion batteries (ZIBs) have brought new opportunities and challenges to the energy storage market due to their low price, high safety, and environmental friendliness. Among the cathode materials, MnO2 is considered one of the most promising materials for ZIBs due to its high theoretical capacitance, abundant reserves, non-toxicity, and low cost. However, the cycling stability and rate performance of MnO2 have been limited by slow electrochemical kinetics and structural damage. To address this issue, a surface modification of manganese hexacyanoferrate (MnHCF) is proposed to optimize the cycling stability and rate performance of MnO2. The modified MnO2 composite shows improved cycling stability and retains a high initial capacity after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.