Article
Chemistry, Physical
Yuan Gao, Chuan Xie, Zijian Zheng
Summary: The increasing demand for portable and wearable electronics has led to a growing interest in flexible lithium-ion batteries and supercapacitors. Textile composite electrodes have shown great promise for flexible, high-capacity, and long-cycle-life textile-based electrochemical energy storage devices, compared to traditional metal-foil-supported electrodes. Challenges associated with textile composite electrodes and textile-based electrochemical energy storage devices are discussed, along with potential solutions.
ADVANCED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Xingwen Yu, Yijie Liu, John B. Goodenough, Arumugam Manthiram
Summary: A novel composite electrolyte is developed for solid-state lithium batteries, combining a polymeric phase (PEGDA) and a ceramic phase (LLZTO) to optimize ionic conductivity. The LLZTO ceramic filler suppresses Li dendrites while the PEGDA polymer facilitates good interfacial contact. The resulting solid-state composite electrolyte shows promising room-temperature Li+ ion conductivity.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Chemistry, Physical
Peng Li, Hun Kim, Seung-Taek Myung, Yang-Kook Sun
Summary: This review highlights the necessity of co-exploitation of silicon and graphite, and systematically concludes the key issues, challenges, and perspectives of Si-graphite electrodes. Through a deep understanding of associated electrochemical processes, the component and structural optimization of Si-graphite anodes could be effectively enhanced.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Miaoxin Di, Zhenqi Song, Suhua Chen, Ying Bai
Summary: The research team constructed a composite material of cobalt-doped zinc sulfide encapsulated in a carbon shell, which effectively improves sodium storage performance, and the mechanism analysis proves its accelerated ion diffusion. The composite material exhibits high reversible capacity and excellent rate performance, making it an effective anode material for sodium-ion batteries.
Article
Chemistry, Physical
Weilong Ai, Niall Kirkaldy, Yang Jiang, Gregory Offer, Huizhi Wang, Billy Wu
Summary: In this study, an electrochemical composite electrode model was developed and validated for lithium-ion batteries with a silicon/graphite anode. The model was able to reproduce voltage hysteresis and demonstrate the interactions between graphite and silicon. This research revealed the effects of silicon additives and the impact of different composite electrodes on the performance of lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2022)
Article
Electrochemistry
Fabienne Huttner, Axel Marth, Jochen C. Eser, Thilo Heckmann, Jonas Mohacsi, Julian K. Mayer, Philip Scharfer, Wilhelm Schabel, Arno Kwade
Summary: In order to reduce residual moisture in lithium-ion batteries, electrodes and separators need to be post-dried before assembly. Careful selection of post-drying parameters is essential to reduce moisture without damaging the microstructure, while maintaining efficiency and cost effectiveness.
BATTERIES & SUPERCAPS
(2021)
Article
Chemistry, Multidisciplinary
Mario Branchi, Giovanna Maresca, Akiko Tsurumaki, Naoki Suzuki, Fausto Croce, Stefania Panero, Jorunn Voje, Yuichi Aihara, Maria Assunta Navarra
Summary: This study proposes silicon-based anodes consisting of micrometric Si, graphite, LiI-Li3PS4 solid electrolyte, and carbon nanofiber. The composition-performance relationship of the anodes is investigated through a mixture design approach, which allows analysis of the individual and combined effects of each component. Increasing the fraction of LiI-Li3PS4 in the anode leads to improved electrode capacity, with the best performance achieved at a Si/MAG/LPSI ratio of 15:15:70. When combined with 5 wt % CNF, this composite exhibits a capacity above 1200 mAh g(-1) throughout 50 cycles in a bulk-type all-solid-state battery with LPSI as the electrolyte. Scanning electron microscopy confirms the suppressing effect of LiI-Li3PS4 on Si aggregation and the improved availability of Si for lithiation/delithiation.
Article
Engineering, Environmental
Xuepeng Ni, Zhe Cui, Hongxia Luo, Huifang Chen, Chenglin Liu, Qilin Wu, Anqi Ju
Summary: In this study, three types of flexible 3D-interconnected carbon nanofibers were prepared and used as substrates for vertically grown ultrathin MoSe2 nanosheets. The resulting composites were employed as freestanding anodes for lithium-ion batteries, with the hollow multi-nanochannel structure of NHMCFs delivering the highest capacity after 400 cycles at 1 A g-1. The multi-nanochannel structure in NMCFs and NHMCFs helps alleviate volume changes during charge-discharge processes, while the uniform coating of MoSe2 nanosheets on NHMCFs increases mass loading and capacity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Nawraj Sapkota, Shailendra Chiluwal, Prakash Parajuli, Alan Rowland, Ramakrishna Podila
Summary: The practical applications of sulfurized polymer (SP) materials in Li-S batteries (LSBs) are often overlooked due to their low sulfur content. However, using a comprehensive array of tools, it has been shown that SP materials can function as pseudocapacitors with an active carbon backbone. Analysis of LSBs containing SP materials with an active carbon skeleton reveals their suitability for achieving high energy density targets at the cell level.
Article
Chemistry, Physical
Chaoyue Liu, Oier Arcelus, Teo Lombardo, Hassan Oularbi, Alejandro A. Franco
Summary: This study presents a three-dimensional physics-based model for graphite/Si composite electrodes, coupling electrochemistry and mechanics to gain a fundamental understanding of the complex processes in these electrodes, paving the way for their optimization.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Quan-ya Wei, Hua Zhu, Shi-jin Yu, Guo-qian Xu, Jian-hong Yin, Jia-hao Tong, Tian-rui Chen, Xuan-nan He, Ping-chun Guo, He-dong Jiang, Jia-ke Li, Yan-xiang Wang
Summary: This work investigates the hollow structure that controls the Fe3O4@C void size using a template method to address the issue of large volume expansion during lithiation of iron oxide anode materials in lithium-ion batteries. The hollow structure is controlled by the dosage of ethyl orthosilicate (TEOS), and Fe2O3 is coated with phenolic resin to obtain an anode electrode material with excellent performance. The samples are analyzed for their microstructure and morphology as well as their electrical properties, and the Fe3O4@C-1.0 sample with a large vacancy shows exceptional electrochemical properties, rate performance, and stable cycle performance.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
A. Lakshmi-Narayana, Merum Dhananjaya, Christian M. Julien, Sang Woo Joo, C. Ramana
Summary: A comprehensive and comparative exploration research reveals the enhanced electrochemical performance of nanocrystalline RE-LTO electrodes in high-power Li-ion batteries, through the fundamental mechanisms of rare-earth metal-ion doping into Li4Ti5O12.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jiafeng Gao, Songlin Zuo, He Liu, Qiwen Jiang, Chenhao Wang, Huanhuan Yin, Ziqi Wang, Jie Wang
Summary: In this study, an interconnected hollow Si-C nanospheres/graphite composite was fabricated to improve the performance of Si anode. The composite anode exhibited high specific capacity, excellent rate performance, and cycling stability, attributed to the high electrical conductivity and buffering effect of graphite, as well as the good compatibility and uniform distribution of hollow Si-C nanospheres and graphite.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Xin Chang, Min Fan, Boheng Yuan, Chao-Fan Gu, Wei-Huan He, Chen Li, Xi-Xi Feng, Sen Xin, Qinghai Meng, Li-Jun Wan, Yu-Guo Guo
Summary: The prosperity of the lithium-ion battery market is accompanied by resource depletion and the accumulation of spent batteries. Developing green and efficient battery recycling strategies is urgently needed. In this study, a mild and efficient lithium extracting strategy based on controllable redox couples is proposed, achieving nearly 100% lithium recovery. The study also investigates the Li+-electron redox reactions and the effect of solvation structure on kinetics during the extraction process, providing new inspiration for designing novel solutions in battery recycling.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Shaoyan Zhang, Kun Wang, Xian Zhang, Peiye Feng, Fei Li
Summary: This study presents a new approach for exploring the SVO electrode structure of rechargeable LIBs through the fabrication of a novel nanocomposite paper, demonstrating high discharge capacity and stable cycling performance as potential power sources for implantable medical devices.
ACS APPLIED NANO MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Zhansheng Gao, Jiabiao Chen, Zheshan Zhang, Zhaochao Liu, Yu Zhang, Lingyun Xu, Jinxiong Wu, Feng Luo
Summary: The recent discovery of 2D ferromagnetic materials provides new opportunities for fabricating 2D ferromagnets-based spin valve devices and exploring related novel physics. However, up to now, almost all works adopt a spin valve configuration by inserting different types of 2D materials into the gap between two 2D ferromagnetic electrodes as barrier spacer, rather than applying traditional tunneling barrier, such as ALD-grown Al2O3 films, probably attributed to the instability and incompatibility for the widely explored 2D ferromagnets (CrI3, Fe3GeTe2) to the ALD growth process.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaomeng Shi, Zhichao Zeng, Hongtu Zhang, Yunhui Huang, Chun-Hua Yan, Yaping Du
Summary: Rare earth-based halide solid electrolytes (RE-HSEs) are promising due to their comprehensive properties. A highly purified RE-HSE Li3ErBr6 (LErB) with high ionic conductivity and electrochemical window is successfully synthesized. The LErB is used in a solid Li-SeS2 battery, showing stable cycling performance and good rate performance. The assembled pouch-type cell with LErB can light a diode array after bending and cutting, proving the practicality of LErB-based Li-SeS2 cells in battery packaging and operation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Ahsan Ali, Longbin Chen, Muhammad Salman Nasir, Chao Wu, Baolin Guo, Yaodong Yang
Summary: This article reviews an overlooked method, piezocatalysis, for degrading organic pollutants and inhibiting bacteria. Recent research has shown significant progress in the properties of piezoelectric materials, allowing for efficient charge carrier generation and fast reactions mediated by reactive oxygen species. The paper discusses the properties of piezoelectric materials, methods for water treatment, and the piezocatalytic mechanism with a focus on charge generation, cavitation, and bacterial inactivation by reactive oxygen species. Applications for dye and pathogenic bacteria removal are also presented.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Kangning Wang, Mengran Qin, Chuantao Wang, Ting Yan, Yanzhong Zhen, Xiaolei Sun, Jianwei Wang, Feng Fu
Summary: The construction of composite materials is an effective strategy to solve the problems of poor conductivity, manganese dissolution, and volume expansion of manganese-based materials. Herein, a CeO2/MnOx@C hollow composite cathode derived from the self-assembly of Ce-Mn-MOFs was synthesized. The 1% CeO2/MnOx@C composite cathode exhibits a high reversible capacity and excellent cycling stability, with a remarkable reversible specific capacity of 130 mAh/g at a current density of 500 mA g(-1), 6.5 times more than the pure MnOx (20 mAh/g), and a capacity retention of 99.5% after 800 cycles. This study provides a new strategy for designing rare-earth composite electrodes to improve electrochemical performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Zhe Li, Yuxuan Ding, Yaping Du, Jinxin Cao, Mingli Chen
Summary: This article presents an integrated model for analyzing the interaction between the lightning channel and tall structures on the ground. The model takes into account the nonlinear, nonuniform, and time evolution characteristics of the lightning channel, and uses a partial element equivalent circuit method to model the wire structure on the ground. Experimental data verification and simulation results show that the proposed model more accurately describes the characteristics of lightning surges compared to the simple current source model.
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
(2023)
Article
Engineering, Chemical
Longbin Chen, Pengqi Hai, Yaodong Yang, Chao Wu, Yongming Hu, Wei-Feng Rao
Summary: Combining metal with ferroelectrics is an effective strategy to significantly improve the photocatalytic water splitting efficiency of ferroelectrics. In this study, we fabricated SrBi4Ti4O15 (SBTO) nanosheets and deposited different quantities of Pt nanoparticles to form heterojunctions, aiming to find the optimal Pt loading ratio. The optoelectronic characterizations confirmed that the Pt-modified SBTO nanosheets exhibited broadened absorption of visible light and generated more long-lived charge carriers. The photocatalytic hydrogen production reached 11700 μmol g(-1) with continuous illumination for 3 hours from the sample containing 6 wt% Pt, which demonstrated a much higher hydrogen evolution rate compared to other ferroelectric materials in similar reaction systems. Our work provides a valuable and feasible solution for hydrogen production from water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Crystallography
Ruonan Tian, Huai Tan, Gang Chen, Hongtao Guan, Chengjun Dong, Zongyou Yin
Summary: In this study, Fe-alkoxide was fabricated using a solvothermal method and converted into α-Fe2O3, γ-Fe2O3, and their mixed-phase α/γ-Fe2O3 with a flower-like nanosheets-assembled structure through thermal treatment. The influence of calcination temperature on the phase and sensing properties of acetone detection was investigated. It was found that the α/γ-Fe2O3 annealed at 400 ℃ contained 18% α-Fe2O3 and exhibited excellent sensing performance towards acetone. It showed a high response of 353 to acetone with a concentration of 200 ppm, a low limit of detection of 0.5 ppm at 160 ℃, and demonstrated good linearity, reproducibility, selectivity, as well as fast response and recovery times.
Article
Materials Science, Multidisciplinary
Ary Anggara Wibowo, Mike Tebyetekerwa, Anh Dinh Bui, Thien N. Truong, Sandra Saji, Felipe Kremer, Zhongshu Yang, Zongyou Yin, Yuerui Lu, Daniel Macdonald, Hieu T. Nguyen
Summary: In this study, a method for growing large-area, high-quality MoSe2 monolayers and MoSe2-WSe2/WSe2-MoSe2 lateral heterostructures using molten salt-based chemical vapor deposition (CVD) is reported. The effects of different catalysts on the growth and optoelectronic quality of the materials are investigated, and it is found that molten salt catalysts support high-quality growth of MoSe2 monolayers and WSe2-MoSe2 lateral heterostructures.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Huarong Yang, Tong-Huai Cheng, Qian Xin, Yiyuan Liu, Hua Yu Feng, Feng Luo, Wenxiang Mu, Zhitai Jia, Xutang Tao
Summary: In this study, square nanopore arrays were created on ss-Ga2O3 microflakes using focused ion beam (FIB) etching, and solar-blind photodetectors (PDs) were fabricated based on these microflakes. The device exhibited excellent solar-blind PD performance with high responsivity, detectivity, and light-to-dark ratio, as well as good repeatability and stability. The underlying mechanisms for this performance were discussed, and the FIB etching process was shown to be a promising method for producing high-performance ss-Ga2O3-based PDs with high reproducibility.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biochemistry & Molecular Biology
Wenhe Xie, Congcong Liu, Chen Hu, Yuanxiao Ma, Xuefeng Li, Qian Wang, Zhe An, Shenghong Liu, Haibin Sun, Xiaolei Sun
Summary: In this study, a composite electrode of amorphous GeO2 and carbon was designed, which exhibited highly reversible alloying and conversion processes. The uniform distribution of highly amorphous GeO2 particles in the carbon nanofiber framework allowed for improved conductivity and buffering of volume changes, preventing material agglomeration. The composite electrode showed promising reversible capacity and potential for high-performance lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Kangning Wang, Jianwei Wang, Ziqi Zhang, Wenlin Zhang, Feng Fu, Yaping Du
Summary: In this research, a low-cost and high-energy density aqueous Zn-S battery was designed, with a conversion cathode made from pitch-derived three-dimensional (3D) amorphous carbon encapsulated industrial-grade sulfur powder. The cost of chemical substances for this battery could be reduced to $9.38 per kW h based on affordable raw ingredients. The cathode exhibited excellent electrochemical performance, as well as a conversion reaction between S and ZnS, offering potential possibilities for more secure and inexpensive battery systems.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Energy & Fuels
Huan Liu, Xiaoping Liu, Guoyong Liu, Guoyong Li, Jianwei Wang, Yongliang Gao, Biao Sun, Jiakai Hou, Hanxi Liu, Xuejiao Sun
Summary: This study analyzed the organic-rich shale of the Shahejie Formation in the Nanpu Sag Bohai Bay Basin using petrographic and elements analysis to identify lithofacies and reconstruct the sedimentary paleoenvironment. A division scheme based on total organic carbon (TOC), sedimentary structure, and mineral composition was used. The results showed that there are 15 types of lithofacies and the study interval was divided into three parts based on lithologic changes. The paleo-productivity and redox conditions were found to be crucial factors affecting organic matter enrichment and preservation.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Yuqi Tang, Haiyuan Chen, Jianwei Wang, Xiaobin Niu
Summary: Machine learning is used to efficiently predict important physical quantities of materials, such as band gaps, for doped semiconductors. By combining density functional theory calculations and ML predictive models, the band gaps are successfully obtained, including cases of extremely low-concentration doping. The ML models are validated and the method accelerates the prediction of physical properties of semiconductors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Electrochemistry
Zhuo Wang, Zhehao Sun, Hang Yin, Honghe Wei, Zicong Peng, Yoong Xin Pang, Guohua Jiac, Haitao Zhao, Cheng Heng Pang, Zongyou Yin
Summary: Researchers have made significant progress in the field of CO2RR by utilizing machine learning techniques, including accelerated catalyst property prediction, activity and selectivity prediction, guided catalyst and electrode design, and assisted experimental synthesis. These advancements contribute to a better understanding of CO2RR and play a role in achieving carbon neutrality.
Article
Chemistry, Multidisciplinary
Doudou Zhang, Haobo Li, Haijiao Lu, Zongyou Yin, Zelio Fusco, Asim Riaz, Karsten Reuter, Kylie Catchpole, Siva Karuturi
Summary: This study fabricates a highly active ternary metal (hydro)oxide OER catalyst and uses machine learning methods to analyze its activity mechanism, demonstrating that adding Fe and Co can reduce overpotential and enhance activity. This study provides new insights into the activity mechanism of ternary metal (hydro)oxide amorphous catalysts.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)