Article
Engineering, Environmental
Yae Qi, Jianhang Huang, Lei Yan, Yongjie Cao, Jie Xu, Duan Bin, Mochou Liao, Yongyao Xia
Summary: Layered vanadium oxide cathode materials have been extensively studied in rechargeable aqueous zinc-ion batteries due to their large interlayer distance and high capacity. However, these materials suffer from fast capacity decay during long-term cycles. In this study, cesium ions were intercalated into hydrated vanadium pentoxide to reinforce the layered structure and enhance the interaction between layers, resulting in improved specific capacity and excellent long-term cycle stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jun Zhang, Mingshan Wang, Min Zeng, Xinpeng Li, Lin Chen, Zhenliang Yang, Junchen Chen, Bingshu Guo, Zhiyuan Ma, Xing Li
Summary: By synergistically combining sulfite modification and pre-intercalation of ammonium ions into vanadium hydrate, the new S-NVOH strategy significantly enhances the redox kinetics of Zn2+ in aqueous zinc ion batteries. The regulation of charge distribution in the V-O lattice and stabilization of the layered structure contribute to the improved exchange current densities and reduced reaction barriers during the Zn2+ redox process.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Wen Shi, Bosi Yin, Yi Yang, Michael B. Sullivan, John Wang, Yong-Wei Zhang, Zhi Gen Yu, Wee Siang Vincent Lee, Junmin Xue
Summary: This study investigates the effect of CO2 modification on the performance of zinc ion battery cathodes, showing that CO2 can significantly enhance the electrochemical performance of V6O13 electrodes, including improved stability and rate performance, providing evidence for the importance of simple molecules in the material framework.
Article
Chemistry, Physical
Duo Chen, Mengjie Lu, Boran Wang, Ruiqing Chai, La Li, Dong Cai, Hang Yang, Bingke Liu, Yupu Zhang, Wei Han
Summary: This study demonstrates for the first time a new energy storage mechanism involving cationic conversion reactions in the vanadium oxide-based ZIB system. Experimental and theoretical calculations confirm the reversible characteristics of these reactions, opening up a new direction for high-capacity ZIBs.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Physical
Yi Liu, Ying Liu, Xiang Wu, Young-Rae Cho
Summary: In this study, a highly durable zinc ion battery was assembled by intercalating K+ into V2O5 nanolayers, addressing the issues of slow diffusion kinetics of Zn2+ and poor cathode circulation. The battery demonstrated excellent cyclic stability and maintained high specific capacity at high working temperature.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shijing Zhang, Qiang Pang, Yuqing Ai, Wei He, Yao Fu, Mingming Xing, Ying Tian, Xixian Luo
Summary: In this study, vanadium hexacyanoferrate (VHCF) was successfully prepared and used as a cathode material for aqueous zinc-ion batteries. By utilizing a high-concentration hybrid electrolyte, the cycle life of the battery was significantly extended.
Article
Chemistry, Physical
Meng Zhang, Peng-Fei Wang, Xiao-Nan Lv, Yubo Yang, Yu-Hang Zhang, Yu-Han Wu, Lina Zhao, Gang Yang, Fan-Nian Shi
Summary: The main challenge for aqueous zinc ion batteries (ZIBs) system is finding a cathode material that is both highly stable and has a large capacity. In this study, a metal-organic framework (MOF) precursor was synthesized using a hydrothermal method. A carbon composite vanadyl oxide (N/C@ V2O3) was then synthesized through vacuum heat treatment and used as the cathode material for ZIBs. The electrode material underwent an in situ phase change process during the first charge, transforming into a layered basic zinc vanadate (N/C@Zn2(OH)3(VO3)). The layered structure allows for fast and stable storage and transport of zinc ions, resulting in stable electrochemical performance, high specific capacity, and ultra-long cycle stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Mugilan Narayanasamy, Balakrishnan Balan, Chao Yan, Subramania Angaiah
Summary: Due to their unique design and development, it is still challenging to find a suitable cathode operating with ultrahigh capacity and a dendrite-free anode reaction mechanism for rechargeable zinc-ion batteries. In this study, a high-rate and morphologically stable cathode material was constructed using novel cauliflower-like nano-ZnV2S4 for aqueous zinc-ion batteries. The prepared nano-ZnV2S4 electrode demonstrated a specific discharge capacity of 348.2 mAh/g at 0.5 A/g, enhanced rate capability, and excellent capacity retention of 89.2% at 4 A/g current density even after 1000 cycles of usage. Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences in 2023.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Fengfeng Li, Hongwei Sheng, Hongyun Ma, Yifeng Qi, Mingjiao Shao, Jiao Yuan, Wenquan Li, Wei Lan
Summary: This study reports a facile strategy to design an intercalation-type cathode by incorporating interlayer engineering of Mn2+ and oxygen defects into tunnel-type VO2 nanoribbons. The Mn2+ ions act as pillars to extend the tunnel structure of VO2, enabling fast and reversible intercalation/deintercalation of Zn2+ in the ZIBs. In addition, the oxygen vacancies in the MnVO nanoribbons provide extra electrochemically active sites for Zn2+ storage. This work provides an enlightened strategy for the advanced electrochemical performance of ZIBs by a superior vanadium-based oxide cathode.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xianyu Liu, Liwen Ma, Yehong Du, Qiongqiong Lu, Aikai Yang, Xinyu Wang
Summary: Aqueous zinc-ion batteries with vanadium pentoxide nanofibers/carbon nanotubes hybrid film as binder-free cathode exhibited higher capacity, better cyclability, and superior energy/power density, making it highly promising for large-scale energy storage applications.
Article
Engineering, Environmental
Qing Pan, Ran Dong, Huizhen Lv, Xiaoqi Sun, Yu Song, Xiao-Xia Liu
Summary: A high-performance Zn/VOx cell with a binder-free VOx cathode on a graphite substrate exhibits high specific capacity and cycling stability. Electrochemical and spectroscopy analysis reveal an interactive dual-ion storage mechanism in the VOx cathode, including sequential H+ and Zn2+ insertion as well as H+/Zn(2+ ) co-insertion processes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Young-Hoon Lee, Yunseo Jeoun, Ji Hwan Kim, Jaehyuk Shim, Kwang-Soon Ahn, Seung-Ho Yu, Yung-Eun Sung
Summary: This research achieved uniform Zn deposition, suppression of corrosion, and vanadium oxide-based cathode dissolution in aqueous zinc-ion batteries by using a selective ion transport layer composed of MOF-801, thereby improving the performance and stability of the batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Xi Zhang, Xiaohong Sun, Chunming Zheng
Summary: Phosphating treatment improves the structural stability of vanadium oxides and the reaction kinetics of zinc ions, resulting in enhanced performance of zinc-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Su-Ho Cho, Jun-Seob Park, Jong Heon Kim, Yun-Hee Chang, Jaewan Ahn, Jong Seok Nam, Ji-Won Jung, Il-Doo Kim, Hyun-Suk Kim
Summary: In this study, an optimized V2O5 thin-film electrode was prepared by controlling the oxygen pressure during the sputtering process. The electrode exhibited enhanced electrochemical activities, low polarization, improved ion diffusion, and increased electrical conductivities. Density functional theory calculations revealed that the oxygen-deficient V2O5-x had a lower Zn2+-ion diffusion energy barrier than pristine V2O5, contributing to its superior electrochemical performance.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Min Du, Zhenyu Miao, Houzhen Li, Feng Zhang, Yuanhua Sang, Lei Wei, Hong Liu, Shuhua Wang
Summary: Strain engineering of vanadium oxide through oxygen vacancy and phosphate group coordination has been developed to improve the performance of rechargeable aqueous zinc ion batteries, providing more zinc-ion storage sites, weakening strong interactions, boosting charge transfer, and increasing electronic conductivity, resulting in high capacity, long cycle life, and outstanding rate performance.
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)