Article
Energy & Fuels
Baolin Sun, Zexing Liu, Wei Li, Hui Huang, Yang Xia, Yongping Gan, Chu Liang, Wenkui Zhang, Jun Zhang
Summary: This work presents a multifunctional EESD composed of Li4Ti5O12 and Prussian white, which exhibits excellent electrochromic performances, high energy density, and exceptional power density. The EESD is promising for applications in electrochromic smart windows and static displays, significantly reducing energy consumption.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Nanoscience & Nanotechnology
Heng Jiang, Yibo Zeng, Jie Zhang, Yanli Chen, Hang Guo, Lei Li, Ying Zhang
Summary: Thin film microbattery is necessary for providing stable on-chip power for microdevices or microsystems. This study focuses on the development of Ti-doped ZnS thin film as a new type of anode with improved electrochemical performance in lithium ion battery, showing good cycling stability and higher specific capacity.
Article
Chemistry, Multidisciplinary
Yue Chen, Handian Pan, Chun Lin, Jiaxin Li, Rongsheng Cai, Sarah J. Haigh, Guiying Zhao, Jianmin Zhang, Yingbin Lin, Oleg Kolosov, Zhigao Huang
Summary: This study sheds light on the importance of surface decoration effects in optimizing lithium-ion battery performance. The use of AZO coating on LTO electrodes enhances Li-ion transport rates, suppresses phase separation behavior, and improves battery cycling stability.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Francesco Pagani, Max Doebeli, Corsin Battaglia
Summary: By investigating the electrochemical lithiation of epitaxial Li4Ti5O12 thin-film model electrodes, we identified the variation of lithium-ion conductivity with electrochemical lithiation, providing important insights for fast-charging applications of lithium-ion batteries.
BATTERIES & SUPERCAPS
(2021)
Article
Chemistry, Physical
Khagesh Tanwar, Xin Tan, Md Mokhlesur Rahman, Srikanth Mateti, Pavel Cizek, Paramita Koley, Chunping Hou, Sean C. Smith, Ying (Ian) Chen
Summary: The novel molybdenum sulfide-carbon composite thin film electrodes exhibit excellent cycling performance and rate capability in Li-MSx cells, without any shuttle effect.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Yin-Wei Cheng, Chun-Hung Chen, Shih-An Wang, Yi-Chang Li, Bo-Liang Peng, Jun-Han Huang, Chuan-Pu Liu
Summary: This study investigates the effects of boron and arsenic doping on the performance of silicon thin film anode materials in lithium-ion batteries. The results show that boron and arsenic can respectively deteriorate and enhance the capacity retention and rate capabilities of the pristine materials.
Article
Materials Science, Multidisciplinary
Liyong Wang, Mei Wang, Liansheng Jiao, Huiqi Wang, Jinhua Yang, Xiaozhong Dong, Ting Bi, Shengsheng Ji, Lei Liu, Shengliang Hu, Chengmeng Chen, Quangui Guo, Zhanjun Liu
Summary: A one-step method for preparing germanium (Ge) hybrid film using top-down magnetron sputtering technique is presented. To suppress volume changes of Ge, a multilayered electrically conductive nickel film is deposited between multilayered Ge films. The composite film anode showed an initial discharge and charge capacity of 1180.7 and 949.3 mAh g(-1), respectively, and maintained an average capacity of 580 mAh g(-1) after 280 cycles. The Ge composite demonstrated a reversible capacity of 1163.1 mAh g(-1) in rate capability measurement.
Article
Engineering, Multidisciplinary
Yaelim Hwang, Haena Yim, Kwanyoung Oh, Jiseul Park, Sohee Kim, Ho-Won Jang, Ji-Won Choi
Summary: Silicon nitride-based electrodes (SiNx) have been proposed as candidates for high-capacity transparent anode electrodes, but their low electrical conductivity limits their application in thin film batteries. To overcome this, we introduced uniformly dispersed Ag nanoparticles in SiNx thin film to enhance electrochemical properties without affecting transmittance. The addition of Ag increased the capacity of the thin-film battery and allowed for higher C rates, while maintaining optical transmittance over 60% in the visible range.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Energy & Fuels
Li Bai, Bixiang Pan, Fangxiang Song, Qianlin Chen
Summary: In this study, Co/S co-doped nano-LTO was prepared as an anode material for lithium-ion batteries. The co-doping and nanosizing effects successfully improved the ion diffusion coefficient and capacity of Li4Ti5O12.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Kazuhiko Mukai, Takamasa Nonaka, Takeshi Uyama
Summary: Research revealed a two-phase reaction scheme in lithium titanium oxide during lithium-ion battery operation, with distinct structural transformations observed at different scales. Linear, reversible changes in bond distance between titanium and oxygen atoms were observed at the atomic scale, while hysteresis in lattice parameter between discharge and charge reactions was noted at the microscale. These differences in structural changes were attributed to variances in spatial resolutions between XAS and XRD techniques.
ENERGY STORAGE MATERIALS
(2022)
Article
Electrochemistry
James Sturman, Yong Zhang, Chae-Ho Yim, Svetlana Niketic, Mathieu Toupin, Elena A. Baranova, Yaser Abu-Lebdeh
Summary: Silicon nanoparticles coated with a layer of Li4Ti5O12 (LTO) ceramic using a water-based sodium alginate binder show improved battery performance when combined with graphite. The composite electrodes exhibit high initial capacity and good capacity retention, outperforming other silicon composites. Si@LTO + graphite composites are a promising solution for stable and high-energy-density lithium-ion batteries with silicon integration.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Jacob Wheaton, Steven Kmiec, Devon Schuler, Christopher Sorensen, Steve W. Martin
Summary: Thin-film glassy solid-state electrolyte ribbons of lithium metaphosphate were successfully prepared with identical structure and composition to bulk materials, showing stable electrochemical properties suitable for all-solid-state lithium batteries.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Sang Ho Lee, Chun Huang, Patrick S. Grant
Summary: Through discrete layering and optimized electrochemical behavior, a multi-layered composite electrode was utilized to explore new capacity-power combinations, showing remarkable rate capability and energy density in both lithium ion batteries and capacitors.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Tianyu Zhu, Cuiping Yu, Yang Li, Rui Cai, Jiewu Cui, Hongmei Zheng, Dong Chen, Yong Zhang, Yucheng Wu, Yan Wang
Summary: This study investigated the effects of LBO coating on the lithium ion storage performance, finding that LTO coated with 2 wt% LBO exhibited optimal performance at a current density of 0.1 A g(-1), showing improved rate capability and cycling stability. The LBO-LTO composites are competitive and promising candidates for electrochemical energy storage applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Shih-Chieh Hsu, Tzu-Ten Huang, Yen-Ju Wu, Cheng-Zhang Lu, Huei Chu Weng, Jen-Hsien Huang, Cai-Wan Chang-Jian, Ting-Yu Liu
Summary: This study investigated the impact of PI structure on the electrochemical performance of carbon-coated LTO and found that introducing rigid p-PDA units can improve the molecular arrangement of PI, resulting in a more regular graphite structure with fewer defects and higher conductivity. As a result, the carbon-coated LTO exhibited better rate performance with a discharge capacity of 137.5 mAh/g at 20 C, nearly 1.5 times larger than that of bare LTO (94.4 mAh/g).
Article
Nanoscience & Nanotechnology
Hyoung-Do Kim, Jong Heon Kim, Kyung Park, Yun Chang Park, Sunkook Kim, Yong Joo Kim, Jozeph Park, Hyun-Suk Kim
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Engineering, Electrical & Electronic
Kyung Park, Jong Heon Kim, Taehoon Sung, Hyun-Woo Park, Ju-Heyuck Baeck, Jonguk Bae, Kwon-Shik Park, Sooyoung Yoon, Inbyeong Kang, Kwun-Bum Chung, Hyun-Suk Kim, Jang-Yeon Kwon
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2019)
Article
Materials Science, Ceramics
Jong Heon Kim, Jozeph Park, Kyung Park, Su-Ho Cho, Yun Chang Park, Chunjoong Kim, Il-Doo Kim, Kyusung Park, Hyun-Suk Kim
JOURNAL OF ELECTROCERAMICS
(2019)
Article
Nanoscience & Nanotechnology
Seong Cheol Jang, Jozeph Park, Hyoung-Do Kim, Hyunmin Hong, Kwun-Bum Chung, Yong Joo Kim, Hyun-Suk Kim
Article
Chemistry, Multidisciplinary
Shuai Ning, Samuel C. Huberman, Zhiwei Ding, Ho-Hyun Nahm, Yong-Hyun Kim, Hyun-Suk Kim, Gang Chen, Caroline A. Ross
ADVANCED MATERIALS
(2019)
Article
Computer Science, Information Systems
Song-Yi Ahn, Kyung Park, Daehwan Choi, Jozeph Park, Yong Joo Kim, Hyun-Suk Kim
Article
Nanoscience & Nanotechnology
Ho-Hyun Nahm, Hyoung-Do Kim, Ji-Min Park, Hyun-Suk Kim, Yong-Hyun Kim
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Hyoung-Do Kim, S. V. N. Pammi, Hae-Won Lee, Sung Woo Lee, Soon-Gil Yoon, Jozeph Park, Yong Joo Kim, Hyun-Suk Kim
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Sung Hun Woo, Dae Soo Park, WonSeok Choi, Hyunil Kang, Seung-Wook Baek, Hyun-Suk Kim, Tae Ho Shin, Jun-Young Park, Harald Schlegl, Jung Hyun Kim
SOLID STATE IONICS
(2020)
Article
Multidisciplinary Sciences
Aeran Song, Hyun-Woo Park, Hyoung-Do Kim, Hyun-Suk Kim, Kwun-Bum Chung
SCIENTIFIC REPORTS
(2020)
Article
Materials Science, Ceramics
Jong Heon Kim, Cheng-Fan Xiao, Jonghyun Han, Yong Joo Kim, Shunsuke Yagi, Hyun-Suk Kim
CERAMICS INTERNATIONAL
(2020)
Article
Chemistry, Multidisciplinary
Jong Hyun Kang, Ju Young Kim, Yejin Jo, Hyun-Suk Kim, Sung Mook Jung, Su Yeon Lee, Youngmin Choi, Sunho Jeong
Article
Materials Science, Multidisciplinary
Dae-Gyu Yang, Hyoung-Do Kim, Jong-Heon Kim, Hyun-Suk Kim
KOREAN JOURNAL OF MATERIALS RESEARCH
(2018)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
