Article
Chemistry, Physical
Ao Jiang, Yuli Di, Shanhua Chen, Dafu Zhang, Xingyu Chen, Zhengdong Zhang, Xinyi Zhang, Qi Dong
Summary: A series of muscovite/TiO2 heterostructures were prepared using the sol-gel method for photocathodic protection of 304 stainless steels. The effects of different mass ratios of muscovite to TiO2 on the properties of TiO2 and muscovite/TiO2 heterostructures were studied. The corrosion resistances and photoelectrochemical properties of the 304SS coated with muscovite/TiO2 heterostructures were evaluated.
APPLIED CLAY SCIENCE
(2023)
Article
Materials Science, Coatings & Films
Mohamad Mohsen Momeni, Majid Motalebian
Summary: Single-step anodization of titanium foils in ethylene glycol based electrolytes with chrome alum has been used to synthesize chromium doped TiO2 nanotubes for efficient photocathodic protection of 403 stainless steel. The concentration of chrome alum in the electrolyte affects the performance of the photoelectrodes. The photocurrent density of the best chromium doped TiO2 nanotube electrode was significantly higher than the undoped sample, providing more negative open-circuit potential for efficient photocathodic protection of stainless steel under light irradiation.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yuhua Dong, Kexin Wu, Yuanyuan Yin, Xueyan Du, Qiong Zhou
Summary: By calcinating Ti3C2 MXene at different temperatures, a ternary composite with enhanced photocatalytic activity and improved photocathodic protection effect was prepared. The addition of TiN further shifted the absorption peak towards the red end of the visible light spectrum, showing promising potential for protection against natural corrosion of 304 SS.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Majid Motalebian, Mohamad Mohsen Momeni, Byeong-Kyu Lee
Summary: Mo-doped, Cr-doped, and Mo-Cr co-doped titania nanotube arrays were synthesized through single step anodization of titanium. The Mo-Cr co-doped titania nanotubes showed a significant improvement in photo-catalytic activity for the protection of stainless steel under visible light irradiation. The addition of sulfur compounds as hole scavengers affected the photoelectrochemical properties and photoelectrochemical cathodic protection of the best Mo-Cr co-doped titania nanotubes, with sodium sulfide being the most suitable hole scavenger.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Haizhong Tang, Zuwei Song, Jing Wang, Bei Qian
Summary: In this study, a nonmetal ternary photocatalyst consisting of graphitic carbon nitride, reduced graphene oxide, and polypyrrole was reported. The ternary photocatalyst demonstrated superior photocathodic protection performance compared to the pristine and binary photocatalysts. These findings are of significant importance for the advancement of photocathodic protection employing nonmetal photocatalyst materials.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Mengxin Zhao, Xulan Yang, Xuyun Li, Zheng Tang, Zuwei Song
Summary: The Ni3S2/g-C3N4 composite photoanodes, constructed through hydrothermal method and electrophoretic deposition technique, exhibit excellent photoelectric properties with high photocurrent density and open circuit potential, effectively enhancing the cathodic protection performance for stainless steel.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Yanan Sun, Xiutong Wang, Fanglin Du, Jianmin Niu, Youbo Nan, Jiayan Pu, Yanliang Huang, Baorong Hou
Summary: This study investigates the effect of SiO2-coated MnFe2O4 nanoparticles on the photoelectrochemistry of TiO2. The results show that the doped composite films improve the separation rate of photogenerated electrons and holes, widen the absorption range of visible light, and provide protection for 304SS under intermittent illumination.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Phatchara Wipataphan, Juthapon Laohawattanajinda, Thanate Na Wichean, Worapot Sripianem, Ratchatee Techapiesancharoenkij
Summary: The photoelectrochemical cathodic characteristics of amorphous and nanorod ZnO thin-film coatings on stainless steel AISI 304 substrates were investigated. The results showed that the current densities increased and voltages decreased with UV light exposure for both types of coatings. The cathodic mechanism was explained by the photogenerated electron-hole pairs, hole consumption, and electron transfer.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Jiangshan Li, Yuxiao Chu, Chuanqun Zhang, Xiao Zhang, Chenqi Wu, Xianqiang Xiong, Lujia Zhou, Chenglin Wu, Deman Han
Summary: Efficient photocathodic protection systems require active and stable light-absorbing electrodes. The CoFe-PB modified BiVO4 film can extract photo-generated holes effectively and overcome water oxidation barriers, greatly increasing electron lifetime and enhancing photocathodic protection capability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Xiao Zhang, Yuxiao Chu, Xianqiang Xiong, Qianmin Fan, Deman Han, Chenglin Wu
Summary: By introducing a CoP electrocatalyst on the BiVO4 surface, the electron injection efficiency into the protected metal is greatly enhanced, improving the metal anticorrosion performance of the BiVO4 photoanode. The modified photoanode shows high solar water oxidation activity and excellent metal protection.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Yichang Lin, Sheng Liu
Summary: Nanocrystalline Bi2S3 shells were uniformly deposited on ZnO nanowire arrays via a successive ionic layer adsorption and reaction approach. The ZnO/Bi2S3 core/shell nanowire heterostructures with a type-II heterojunction showed a more negative shift in the coupled open circuit potential and a higher photocurrent density, achieving more effective photocathodic protections for the coupled 304 stainless steel under solar illumination.
Article
Materials Science, Multidisciplinary
Zhanyuan Yang, Hong Li, Xingqiang Cui, Jinke Zhu, Yanhui Li, Pengfei Zhang, Junru Li
Summary: CuInSe2 nanoparticles were successfully deposited on the surface of TiO2 nanotube arrays (NTAs) to form CuInSe2/TiO2 composites with enhanced visible light absorption and high photoelectric conversion efficiency. These composites demonstrated the photocathodic protection (PCP) capability for metals, with a significantly decreased potential of 316 SS and a four times higher photocurrent density compared to TiO2 NTAs. The protective effect of the composites lasted for more than 8 hours in the dark state after 4 hours of visible light illumination, attributed to increased visible light absorption, extended lifetime of photogenerated electrons, and generation of oxygen vacancies.
Article
Chemistry, Multidisciplinary
Hongai Zheng, Yue Liu, Yiheng Zhou, Dongling Zhao, Derui Wang, Le Yun, Daquan Zhang, Lizhi Zhang
Summary: The study demonstrated the enhanced photocathodic protection performance by synthesizing g-C3N4/rGO/ZnS composite materials, which exhibited excellent photo-induced charge carrier separation efficiency and high proton reduction capacity. Furthermore, it was found that the 15%-rGO/g-C3N4/ZnS composite material provided significantly better protection for 304 stainless steel compared to pure g-C3N4.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Huixia Guo, Liangliang Li, Ce Su, Dongmei Yu, Ziye Liu
Summary: The use of new photocathodic protection technology to protect 304 stainless steel has attracted significant attention from corrosion researchers due to the severe consequences of metal corrosion on resources and economy. However, the photocatalytic materials used for protection still have some defects, such as high recombination rates and inefficient transfer of photoinduced electrons. In this study, PbS quantum dots modified TiO2 nanotubes were successfully synthesized and showed improved photocurrent density and optical absorption compared to pure TiO2, providing effective photocathodic protection for stainless steel under visible light irradiation.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Hai-Peng Wang, Zi-Chao Guan, Hai-Yan Shi, Xia Wang, Piao Jin, Guang-Ling Song, Rong-Gui Du
Summary: An Ag/SnO2 co-modified TiO2 composite photoanode was successfully fabricated through anodization, hydrothermal treatment, and electro-deposition, showing good photocathodic protection performance and charge storage ability. The composite film exhibited extended light absorption into the visible region and doubled photocurrent intensity compared to the TiO2 film, resulting in enhanced photocathodic protection of 403 stainless steel in a corrosive environment.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
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)