Article
Engineering, Environmental
Siyao Cheng, Xihao Pan, Aming Xie, Jiaoyan Shi, Qian Qiu, Cheng Zhang, Wei Dong, Xiaoliang Qi
Summary: By utilizing a modified Zn/HCl system for controlled hydrogenation of transition metal oxides (TMO), the research shows a significant improvement in the electromagnetic absorption (EMA) performance of TMO. The study reveals a close relationship between EMA property and hydrogenation degree, with potential for efficient tuning through hydrogenation control. These findings suggest that enhanced EMA performance in hydrogenated TMO is attributed to changes in band structure leading to increased electrical conductivity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Energy & Fuels
Joyita Banerjee, Kingshuk Dutta
Summary: Metal vanadium oxides and vanadates have emerged as promising electrode materials with high theoretical capacitance and multiple redox states. The morphology formed during synthesis influences the electrochemical characteristics of the electrode, presenting both prospects and challenges for commercialization.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Baoshun Wang, Ya Huang, Ying Han, Wenshuo Zhang, Chenhui Zhou, Qinyuan Jiang, Fengxiang Chen, Xueke Wu, Run Li, Pei Lyu, Siming Zhao, Fei Wang, Rufan Zhang
Summary: Transition metal oxides (TMOs) are promising inorganic electrochromic materials (ECMs) that can be widely used in electronic displays and adaptive camouflage. However, achieving simultaneous multicolor transformation capability and good cycling stability in TMOs is still a challenge. In this study, Au-modified VxO2x+1 nanoflowers were successfully assembled, demonstrating five reversible color transformations and excellent cycling stability.
Article
Materials Science, Ceramics
Hee Jung Park, Jeong Min Lee, Mohammad Nasir, Seung Jo Yoo, Chel-Jong Choi, Kimoon Lee
Summary: In this study, ultra-thin vanadium-oxide nanobelts were fabricated by chemical exfoliation method and their structure, electrical, and optical properties were investigated. The nanobelts exhibited excellent structural and morphological stability even at high temperatures. Surprisingly, there was no metal-insulator transition in vanadium oxide nanobelts unlike in 3-dimensional vanadium dioxide structures, and their electrical behavior was well described by thermally activated transport phenomena. The optical band gap was estimated to be -2.1 eV. The unique nanobelt-like morphology and unusual electrical-optical properties make this material a promising candidate for applications in the electronic industry.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Jiahua Qi, Dongping Zhang, Qicong He, Lanxuan Zeng, Yi Liu, Zhuangbing Wang, Aihua Zhong, Xingmin Cai, Fan Ye, Ping Fan
Summary: This study successfully reduces the sheet resistance of VO2 and eliminates its electrical phase change characteristics by inserting a conductive ITO buffer layer. The optical modulation ability remains high, while achieving a low threshold working voltage for electro-optic switches. This result is significant for the practical application of VO2-based optical switches.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Physics, Condensed Matter
D. Nagpal, V Gajraj, A. Kumar, K. Gnanasekar, C. R. Mariappan
Summary: Mesoporous ternary metal oxide microspheres with high electrical conductivity were successfully synthesized by a hydrothermal method followed by calcination.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
Rui Zhang, Tiantian Huang, Wanli Yang, Lepeng Zhang, Peiran Xu, Zhimin Chen, Xin Chen, Ning Dai
Summary: This article describes the implementation of an Insulator-metal transition (IMT) in metallic VO2-x nanobeams through artificially implanting an insulating VO2 segment. It demonstrates an abrupt temperature-dependent resistance change in the VO2-x nanobeam with implanted VO2 segment. This research is expected to contribute to the understanding of correlated oxides and the construction of IMT-based sensors and transistors.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2023)
Article
Materials Science, Ceramics
Daishi Shiojiri, Tsutomu Iida
Summary: This study investigates the effect of the metal-insulator transition (MIT) on the thermal conductivity of microstructure-controlled Ti2O3 composites. By varying the particle radii of the conductive phases, the electronic and thermal transport properties of the material can be changed. It was found that reducing the content of the conductive phase and decreasing the particle diameter lead to an increase in the electronic thermal conductivity and total thermal conductivity of the composite, with the maximum thermal conductivity change being 6.34 times larger than that of pure Ti2O3.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Coatings & Films
Chengyang Zhang, Ravindra Singh Bisht, Amin Nozariasbmarz, Arnob Saha, Chan Su Han, Qi Wang, Yifan Yuan, Abhronil Sengupta, Shashank Priya, Shriram Ramanathan
Summary: VO2 thin films were successfully grown on different substrates and their crystal structure and chemical composition were analyzed using X-ray diffraction and X-ray photoelectron spectroscopy. The films exhibited metal-insulator transition under temperature and electric field, which is of great importance for the application of phase transition devices.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Energy & Fuels
Samiya Mahjabin, Md Mahfuzul Haque, Sobayel Khan, Vidhya Selvanathan, M. S. Jamal, M. S. Bashar, Hend Alkhammash, Mohammad Ismail Hossain, Md Shahiduzzaman, Nowshad Amin, Kamaruzzaman Sopian, Md Akhtaruzzaman
Summary: The study investigates the influence of oxygen concentration on the structural and optical properties of WOx films, prepared by reactive sputtering at varying oxygen concentrations. The films' thickness and surface roughness were found to be dependent on oxygen concentration, impacting their optical parameters. The optimized WOx film shows potential as an efficient electron transport layer for perovskite solar cells, achieving high quantum efficiency and short-circuit current density.
Article
Chemistry, Multidisciplinary
Lepeng Zhang, Linkui Niu, Wanli Yang, Tiantian Huang, Rui Zhang, Peiran Xu, Feng Liu, Zhimin Chen, Xin Chen, Ning Dai
Summary: The study focuses on the surface oxidation state reductions and insulator-metal transition (IMT) modulations in vanadium oxides. Pulsed hydrogen plasma treatment is used to change the oxidation states of vanadium in the nanostructures of vanadium oxides. Thickness-dependent variations are observed and verified in vanadium oxides with different oxidation states. The study demonstrates significant modulations on the IMT behaviors in VO2 thin film and nanobeam, and suggests that surface manipulations can enhance the understanding and fabrication of advanced functional electronic and photoelectronic devices.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Crystallography
Pawel Polak, Jan Jamroz, Tomasz K. Pietrzak
Summary: In this paper, metal-insulator transitions in vanadium (III) and (IV) oxides were observed using contemporary laboratory equipment. Precise investigation of changes in crystallographic structure as a function of temperature, observation of thermal effects, and quasi-continuous measurement of conductivity revealed considerable hysteresis in the transitions of these materials.
Article
Materials Science, Ceramics
Sunil Kumar, Manoj Kumar, Srihari Velaga, Amarjeet Singh
Summary: The optical properties of a precursor dry Ferritin powder and its iron oxide derivatives were studied using UV-visible spectroscopy. The iron oxide derivatives exhibit significant changes in absorption spectra with annealing temperature, showing a large shift in absorption band edge. Crystallization and thermal destruction of the organic cage are found to be inter-related. The large absorption band edge shift provides a simple approach to tuneable optical properties of iron oxides.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
A. Sotelo, P. Amirkhizi, O. J. Dura, G. Garcia, A. C. Asensio, M. A. Torres, M. A. Madre, A. Kovalevsky, Sh Rasekh
Summary: The attrition-milling process was used to obtain small grain-size powders from Ce-doped CaMnO3 precursors. By reducing the atomic proportion of dopant and optimizing the sintering process, the material showed improved thermoelectric performances and high ZT values. This approach is promising for large-scale production of oxide-based thermoelectric modules.
CERAMICS INTERNATIONAL
(2023)
Review
Nanoscience & Nanotechnology
Yu Liu, Anqi Liu, Xiaomei Chai, Yi Yang, Min Lu, Xu Bai, Yongyi Chen, Yu Zhang
Summary: This paper provides a systematic review of the phase transition mechanisms, optical/electrical properties, and applications of VO2, as well as its development direction and potential in optics and electronics. This review is important for the practical applications of VO2.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Environmental
Peng Wang, Yifu Zhang, Hanmei Jiang, Xueying Dong, Changgong Meng
Summary: Aqueous energy storage systems are promising due to high safety, low cost and environmental friendliness. Recent research has focused on using nonmetal ions as charge carriers, with an emphasis on the excellent NH4+ storage performance of an ammonium vanadium oxide framework (NVO) in NH4Cl/PVA gel electrolyte. The NVO electrode displays significantly improved specific capacitance and cycle performance, showing potential for flexible aqueous NH4+-supercapacitors.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Tao Hu, Yang Wang, Xueying Dong, Yang Mu, Xiaoyu Pei, Xuyang Jing, Miao Cui, Changgong Meng, Yifu Zhang
Summary: This study reveals that the electrochemical properties of cobalt silicate are greatly influenced by critical factors during the synthesis process. Cobalt silicate compounds generated from different reaction systems exhibit differences in macrostate, microscopic morphology, composition, and valence, resulting in varying electrochemical performances for energy storage and the oxygen evolution reaction.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Peng Wang, Yifu Zhang, Ziyi Feng, Yanyan Liu, Changgong Meng
Summary: This study develops a dual-polymer strategy to enhance the electrochemical properties of hydrated vanadium oxide (HVO) for NH4(+) storages in a supercapacitor, achieving improved efficiency and cycle stability. The resulting material exhibits outstanding capacitance, long cycle stability, and potential practical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xiaoyu Pei, Shengping Yi, Yunfeng Zhao, Yang Mu, Yuting Yu, Miao Cui, Changgong Meng, Chi Huang, Yifu Zhang
Summary: A biomass-derived 3D porous carbon/cobalt silicate architecture was developed as a support for loading nickel oxide species, resulting in an earth-abundant and non-noble-metal-based NiOx/C/Co2SiO4 electrocatalyst. The introduction of NiOx nanoparticles significantly enhanced the OER performance of the catalyst, demonstrating its potential as an economical and efficient OER catalyst.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yuyu Wang, Wenpei Kang, Xiangjun Pu, Yucang Liang, Ben Xu, Xiaoqing Lu, Daofeng Sun, Yuliang Cao
Summary: A template-directed strategy is proposed for synthesizing multi-component hollow nanospheres, which greatly improves the electrochemical performance in large-sized K+/Na+ storage. The Co2P/MoSe2@NC structure exhibits excellent rate capability and high capacity retention.
Article
Energy & Fuels
Yang Luo, Yicheng Deng, Yifei Shen, Hui Li, Yuliang Cao, Xinping Ai
Summary: Chemical prelithiation is an efficient strategy to compensate for the initial capacity loss of Li-ion batteries. However, there are difficulties in applying prelithiation reagents to commercially used graphite anodes. This study demonstrates a new prelithiation solution for graphite anodes that overcomes these difficulties and offers practical convenience for Li-ion battery manufacture.
Article
Chemistry, Physical
Lijun Wu, Shoujie Guo, Xiangjun Pu, Hongwei Yue, Hao Li, Pinjiang Li, Wei Li, Kun Cai, Wenjie Ding, Longfei Li, Yange Zhang, Wenjun Fa, Changchun Yang, Zhi Zheng, Weiwei He, Yuliang Cao
Summary: The development of oxide cathode materials with a large layer n spacing and high sodium content is crucial for high-performance sodium-ion batteries (SIBs). In this work, a Na0.91MnO2 hexagonal micron wafer (EL-NMO-O-2) was prepared, exhibiting excellent electrochemical performance with high initial discharge capacity, remarkable cycling performance, and improved pseudocapacitive behavior attributed to its unique structural characteristics.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Xinnuo Zhang, Chongrong Zhang, Hui Li, Yuliang Cao, Hanxi Yang, Xinping Ai
Summary: Thermal safety is a growing concern in the application of lithium-ion batteries (LIBs). This study introduces a reversible thermo-responsive switching material (RTSM) to fabricate a temperature-sensitive cathode, enabling reversible thermal protection of LIBs. The RTSM material exhibits a strong and reversible positive temperature coefficient (PTC) effect, rapidly shutting down the electrode reaction at elevated temperatures without compromising the cell's normal performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Shengkai Li, Haiyan Zhang, Yuliang Cao, Shangshang Zhang, Zhenjiang Liu, Shuang Tang, Changsheng Yang, Daofeng Wen
Summary: In this study, micro-nano hierarchical Cu2Se was synthesized and showed excellent electrochemical performance as an anode material for sodium-ion batteries. The design of the hierarchical structure improved the structural stability and reaction kinetics, leading to high rate capacity and cycling stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Applied
Hanmei Jiang, Wenbin Gong, Yifu Zhang, Xin Liu, Moaz Waqar, Jingjing Sun, Yanyan Liu, Xueying Dong, Changgong Meng, Zhenghui Pan, John Wang
Summary: This study addresses the bottleneck issue in the development of high-performance ZIBs by modifying the surface chemistry of V2O5 cathode nanomaterial. The doping of Al ions and the formation of oxygen vacancies improve the electrical conductivity and Zn2+ diffusion rate of V2O5, resulting in superior electrochemical performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hang Zhang, Jian Peng, Lin Li, Yanan Zhao, Yun Gao, Jiazhao Wang, Yuliang Cao, Shixue Dou, Shulei Chou
Summary: In this study, a modified co-precipitation method was used to synthesize highly crystallized Prussian Blue analogs (PBAs). By introducing zinc as an electrochemical inert element to substitute high-spin iron, a highly reversible phase transition process for sustainable sodium-ion storage was achieved, resulting in improved cycle stability and specific capacity. In-situ tests confirmed minor lattice distortion and highly reversible phase transition of the zinc-substituted PBA during sodium-ion insertion and extraction, which greatly influenced the cycling stability. The zinc-substituted PBA exhibited remarkably enhanced cycling performance with a capacity retention of 58.5% over 2000 cycles at 150 mA g(-1) and superior rate performance up to 6000 mA g(-1).
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hanmei Jiang, Yifu Zhang, Moaz Waqar, Jin Yang, Yanyan Liu, Jingjing Sun, Ziyi Feng, Jianguo Sun, Zhenghui Pan, Changgong Meng, John Wang
Summary: In this study, a new dual-ion-in-sequence intercalation strategy is proposed to address the structural instability and sluggish diffusion kinetics of vanadium oxides in ZIBs. The Zn2+ storage mechanism evolves from solid-state ion diffusion kinetic into intercalation pseudocapacitance, resulting from the enlarged interlayer spacing. The improved ionic diffusivity, intercalation pseudocapacitance, and fast charge transferability contribute to the impressive rate capability and cycling stability of the ZIBs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Shuai Cao, Fanjue Wen, Xin Ren, Yuliang Cao, Xinping Ai, Fei Xu
Summary: A nonflammable high-concentration electrolyte has been developed for graphite/LiNi0.8Co0.1Mn0.1O2 lithium-ion batteries. Through investigation of the solvation structure and electrode/electrolyte interface, the origin of capacity decay has been determined. The use of a dual-salt strategy has achieved stable cycling with higher voltages.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Hui Li, Xiangjiang Wu, Sijie Jiang, Qian Zhang, Yuliang Cao, Hanxi Yang, Feifei Cao, Xinping Ai
Summary: This study proposes a solid-phase conversion sulfur cathode with an edible fungus slag-derived carbon material as the sulfur host. By using a co-solvent to form a protective layer, the capacity utilization and cycling performance of Li-S batteries are significantly improved.
Article
Chemistry, Inorganic & Nuclear
Peng Zhou, Siwei Zhang, Zhuoqun Ren, Yazhou Wang, Yifu Zhang, Chi Huang
Summary: The combustion performance of solid propellants is crucial for the overall application of rockets. Adding a catalyst to change the decomposition behavior of ammonium perchlorate (AP) is an effective strategy to control the combustion of solid propellants, and the synergistic catalysis of AP thermal decomposition by a bimetallic ZnCo-ZIF catalyst is more efficient. The study analyzed the thermal decomposition behavior of AP, the actual catalytic component, and the synergistic mechanism of the two metals.
INORGANIC CHEMISTRY FRONTIERS
(2022)
