Article
Chemistry, Physical
Cheng-Fei Li, Jia-Wei Zhao, Ling-Jie Xie, Jin-Qi Wu, Gao-Ren Li
Summary: This study demonstrates the efficient design of bifunctional catalysts using doping and vacancy double control strategy for the significant enhancement of hydrogen and oxygen evolution reactions. The Fe-doped Ni5P4/Fe-doped Ni(OH)2 hybrid nanosheets with rich oxygen vacancies show excellent catalytic performances with low overpotentials and cell voltage for water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Materials Science, Ceramics
Juanli Zhao, Wai-Yim Ching, Jiancheng Li, Yun Fan, Yiran Li, Wenxian Li, Bin Liu
Summary: The research on nanocrystalline pyrochlores emphasizes the significance of the surface properties such as structure, composition, and point defect segregation in their thermal, electrical, optical, magnetic, and catalytic performances. Through first-principles calculations, the thermodynamic stabilities, configurations, electronic structures, and oxygen vacancies of low-index (100), (110), and (111) surfaces for A(2)Sn(2)O(7) (A = La, Ce, Pr, Nd, Pm, Sm, Eu, or Gd) are investigated to gain insights into surface-related phenomena. The results reveal that (111) surfaces with A(3)SnO(8) and ASn(3)O(6) terminations exhibit lower surface energies, indicating their stability. In addition, (110) surfaces with A(2)Sn(2)O(8) and A(2)Sn(2)O(6) terminations could also form. The structural stability of these surface structures mainly depends on the number of broken bonds, while the local coordination environment has a minor contribution. Moreover, oxygen vacancies are found to segregate on the surface layer due to the lower energy of breaking bonds during oxygen vacancy formation and the larger relaxation space compared to the bulk counterpart. These findings are valuable for optimizing the performance of these compounds through surface engineering.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Muhammad Arif, Min Zhang, Yue Mao, Qingxia Bu, Amjad Ali, Zhong Qin, Tahir Muhmood, Shahnoor, Xiaoheng Liu, Baojing Zhou, Shen-ming Chen
Summary: Crystal defects play a crucial role in semiconductor photocatalysis, and engineering defects with dopants can lead to the production of highly efficient photocatalysts. Experimental results have shown that modifying the crystal structure can enhance photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Coatings & Films
Dun-Bao Ruan, Kuei-Shu Chang-Liao, Chia-Chien Liu, Yu-Hsuan Chien, Yao-Jen Lee
Summary: The effects of pre- and post-microwave annealing on p-type Ge metal-oxide-semiconductor devices were investigated, revealing that double-MWA treatment can significantly improve device performance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Lei Dai, Peng Fu, Jieming Chen, Fazhe Sun
Summary: By regulating the N element, the band gap width of TiO2 can be changed, and an impurity band gap can be induced below the TiO2 conduction band. The 300-N-T catalyst exhibited the best photocatalytic hydrogen production performance under visible light, which was 307.65 mmol/(g$h) and was 61.53 times higher than that of anatase. The concentration of Ti3+ defects and oxygen vacancy in TiO2 decreased with decreasing N content.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Haizhao Li, Zhengqi Su, Penghui Zhang, Fangjie Liu, Chenyang Fan, Liyou Xu, Guanlun Guo, Dongju Zhang
Summary: Applied strain can be used to manipulate the migration properties of ion in the bulk of oxygen electrode. In this study, the migration properties of oxygen vacancy in Pd-doped LSCF bulk were investigated under 3% tensile and compressive strains using density functional theory. The results show that the formation energies of oxygen vacancy decrease under tensile strain, but exhibit a nontrivial dependence on compressive strain near Pd-doping sites. The migration barriers of oxygen vacancy in LSCF and LSCFPd bulks are significantly reduced under tensile strain compared to non-strain situations, while the barriers near Pd-doping sites increase greatly under compressive strain. The variation in formation and migration properties of oxygen vacancy can be attributed to the redistribution of atomic charges and local structural distortion caused by Pd doping and applied strain. The findings suggest that Pd doping and the application of tensile strain can greatly enhance the formation and migration properties of oxygen vacancy.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Mathematics, Interdisciplinary Applications
Turki Alsuwian, Farhana Kousar, Umbreen Rasheed, Muhammad Imran, Fayyaz Hussain, R. M. Arif Khalil, Hassan Algadi, Najaf Batool, Ejaz Ahmad Khera, Saira Kiran, Muhammad Naeem Ashiq
Summary: By studying the effects of different doping concentrations on resistive switching phenomena in two perovskite materials, it was found that 75% Al-NdFeO3 is the most stable element with the highest conductivity. This demonstrates the constructive role of dopants as external perturbations, enhancing the electronic properties of the materials for future memory device applications.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Chemistry, Physical
Zhaozhu Qu, Baolin Zhang, Guihua Yao, Changfang Li, Yuntao Peng, Qixin Li, Zhaohui Zeng, Yung-Kang Shen, Jianghui Dong
Summary: In this work, a novel set of methods is proposed for tuning the oxygen vacancy distribution through the combination of several effects. The results show that the incorporation of a Ti nano-island, the insertion of a thin layer of HfO2, and the annealing process under air conditions can significantly improve the performance of the resistive switching memory devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Aparna Paul, Souvik Ghosh, Haradhan Kolya, Chun-Won Kang, Naresh Chandra Murmu, Tapas Kuila
Summary: Doping with rare-earth elements, a one-step hydrothermal method was used to prepare La-doped Ni-Sn oxide/reduced graphene oxide composite. The electrochemical performance of the composite was studied under different electrolyte conditions, and the LNSRG 2 composite showed good specific capacitance in 6M KOH electrolyte. An ASC device fabricated with LNSRG 2 and SRGO as positive and negative electrode materials, respectively, exhibited high energy density and good cyclic stability in 1M Na2SO4 electrolyte.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Electrical & Electronic
Ruibo Ai, Tao Zhang, Huijie Guo, Wang Luo, Xiaojun Liu
Summary: This study successfully achieved nonvolatile bipolar resistive switching in a Cu/MnO2/SnO2 conductive glass structure resistive switching memory device. The experimental results showed that the resistive switching behavior of MnO2 films was affected by annealing temperature, with improved stability after annealing at 700 K. Through studying carrier conduction behavior, the resistive switching mechanism of Cu/MnO2/FTO devices was analyzed in terms of filament formation and dissipation.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Physical
Chaoyue Xie, Baozhong Zhu, Yunlan Sun, Fan Li, Weiyi Song
Summary: In this work, a novel strategy of Cu doping was proposed to enhance the NOx removal efficiency of Fe-based catalysts at low temperature. Cu doping significantly improves the deNO(x) performance of Fe-based catalysts below 200 degrees C, with the optimal catalyst being (Cu0.22Fe1.78)Oδ(3), achieving a deNO(x) efficiency of 100% at 160-240 degrees C. The excellent catalytic activity of the (Cu0.22Fe1.78)Oδ(3) catalyst is attributed to the large number of oxygen vacancies, appropriate Fe3+ and Cu2+ contents, stronger surface acidity, and redox ability. Microscopically, oxygen vacancies play a key role in enhancing molecular adsorption, oxidation, and the deNO(x) reaction over the Fe-based catalyst surface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Physics, Applied
Cheng Ding, Yuehua Dai, Bin Yang, Xing Li, Feifei Wang, Fei Yang, Wenjuan Lu, Qing Ke, Zhe Feng
Summary: By using density functional theory calculations, the intrinsic propensity of the Ti/h-BN interface in a RRAM device with the presence of SW defects and V-B was analyzed. It was found that SW defects and V-B can improve the stability and charge transfer at the interface, leading to enhanced performance parameters of the RRAM device.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
Xinhong Chu, Qiusheng Xie, Xiaoming Zhang, Bingfeng Guo, Jianqing Liao, Xiujian Zhao
Summary: In this study, VO2 thin films with good optical properties were fabricated on practical float glass by magnetron sputtering and annealing method. The films showed high near-infrared switching efficiency and energy modulation ability, as well as high visible transmittance. The crystalline and microstructural characteristics of the films were investigated, and the effects of doping and annealing on the film properties were discussed.
Article
Chemistry, Multidisciplinary
Jingjing Du, Zhiyu Zhang, Chenchen Yue, Zhaojun Nie, Haihu Tan, Zengmin Tang, Na Li, Lijian Xu, Jianxiong Xu
Summary: In this study, WO3-x hydrate nanosheets with superior electrochromic properties were successfully fabricated using a template/surfactant-free solvothermal method. Films with mesostructured architecture were formed on FTO glass substrates by dip-coating process, and an analog smart window device (ASWD) was assembled. The ASWD exhibited excellent optical modulation range, switching time, coloration efficiency, and cyclic stability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Energy & Fuels
Jianyu Xiao, Jinpeng Wang, Zhichao Xue, Tianyu Zhang, Junnan Wang, Qiang Li
Summary: This study investigated the potential application of Ge-doped molybdenum disulfide as an ORR electrocatalyst using first principle calculations. The results showed that Ge-doped MoS2 monolayer has strong oxygen adsorption capability, and the triple Ge atoms-doped MoS2 monolayer exhibited the best ORR activity with a low rate-determine step barrier. The study may provide a meaningful method for the design of novel electrocatalysts based on MoS2 for ORR.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Physics, Condensed Matter
Rui Wang, Qian Qiao, Bin Wang, Xiu-Huan Ding, Yi-Fu Zhang
EUROPEAN PHYSICAL JOURNAL B
(2016)
Article
Physics, Multidisciplinary
Jian-Wei Li, Bin Wang, Yun-Jin Yu, Ya-Dong Wei, Zhi-Zhou Yu, Yin Wang
FRONTIERS OF PHYSICS
(2017)
Article
Materials Science, Multidisciplinary
Lijia Tong, Junjie He, Zheng Chen, Bin Wang, Hongxiang Zong, Graeme J. Ackland
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2017)
Article
Materials Science, Multidisciplinary
Chuan-xiang Ye, Jun-min Zhang, Xiao-dong Lin, Teng Zhang, Bin Wang, Ting-chao He
OPTICAL MATERIALS EXPRESS
(2017)
Article
Chemistry, Physical
Qiang Wang, Jianwei Li, Yihang Nie, Fuming Xu, Yunjin Yu, Bin Wang
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Physics, Multidisciplinary
Qiang Wang, Jian-Wei Li, Bin Wang, Yi-Hang Nie
FRONTIERS OF PHYSICS
(2018)
Article
Nanoscience & Nanotechnology
Qiang Wang, Jianwei Li, Yan Liang, Yihang Nie, Bin Wang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Physics, Applied
Bin Wang, Jianwei Li, Fuming Xu, Hao Jin, Langhui Wan, Yunjin Yu, Yadong Wei
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2019)
Article
Nanoscience & Nanotechnology
Jianwei Li, Bin Wang, Jianming Wang
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2019)
Article
Nanoscience & Nanotechnology
Ximing Rong, Zhizhou Yu, Zewen Wu, Junjun Li, Bin Wang, Yin Wang
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Zhen-Hua Wang, Fuming Xu, Lin Li, Rong Lu, Bin Wang, Wei-Qiang Chen
Article
Chemistry, Multidisciplinary
Liwen Zhang, Jun Chen, Xiaohong Zheng, Bin Wang, Lei Zhang, Liantuan Xiao, Suotang Jia
Article
Chemistry, Physical
Qiang Wang, Jianwei Li, Yan Liang, Bin Wang, Yihang Nie
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Materials Science, Multidisciplinary
Lei Zhang, Bin Fu, Bin Wang, Yadong Wei, Jian Wang
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)