Article
Materials Science, Multidisciplinary
Chang-Long Guan, Ting-An Zhang, Jian-She Chen, Zhi-He Dou
Summary: A new electrolysis device with corundum crucible as an electrolytic cell was presented, and a cathode pellet with a fluted base placed flat in a corundum crucible was adopted to separate the cathode and anode. The electrochemical reduction of solid TiO2 to Ti in situ was studied and characterized. The influence of CaCl2 doping in the cathode and the electrolysis device structures on electrochemical reduction mechanisms and the process strengthening were systematically investigated.
Article
Materials Science, Ceramics
Maria J. S. Lima, Fernando E. S. Silva, Maria V. M. Souto, Kivia F. G. Araujo, Roberta A. C. Menezes, Marcello Filgueira, Carlson P. Souza, Uilame U. Gomes
Summary: WC-Ni nanoparticles were successfully synthesized using the gas-solid reaction method, with synthesis temperature having the greatest influence on crystallite size, and the combination of temperature and isotherm also significantly affecting the response variable.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Larysa Okhrimenko, Julie Dussouillez, Kevyn Johannes, Frederic Kuznik
Summary: Thermochemical materials have attracted attention as promising options for heat storage due to their high energy density and low heat loss. This study investigates the thermodynamic properties and dehydration kinetics of lanthanum chloride hydrates, providing a reliable phase diagram and understanding of the dehydration reaction mechanism.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Ceramics
Seung Hyun Jin, Hae Won Lee, Na Won Kim, Byung-Woo Lee, Gil-Geun Lee, Youn-Woo Hong, Woo Hyun Nam, Young Soo Lim
Summary: This study demonstrates the sonochemically activated solid-state synthesis of BaTiO3 powders, which accelerates the phase conversion process and can replace traditional ball-mill mixing methods.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Engineering, Multidisciplinary
Tomasz Siudyga, Karolina Wojtacha-Rychter, Argyrios Anagnostopoulos, Helena Navarro, Yulong Ding, Adam Smolinski, Malgorzata Magdziarczyk, Pawel Mierczynski, Jaroslaw Polanski
Summary: Energy storing systems can increase energy efficiency by addressing the intermittency issue of the current supply and demand. Thermochemical energy storage is a highly promising technology. This study experimentally investigates inductive heating as a method to directly couple power systems with thermal energy technologies for the first time. The results demonstrate the potential of waste red mud as an inductive material and its superior performance in terms of absorption capacity and desorption enthalpy compared to iron wires. The findings offer new utilization pathways for waste red mud while promoting research in the field of inductive heating.
Article
Electrochemistry
Haoyu Huang, Na Li, Zeng Chen, Zhengyu Ren, Rui Zhang, Meiyue Liu, Putao Zhang, Shengjun Li
Summary: Pure Al-Ni alloy phases (AlNi3, AlNi, Al3Ni2) were successfully prepared by electro-deoxidation in CaCl2-NaCl molten salt, which is a more efficient method compared to traditional methods. It was found that the loss of Al in the electro-deoxidation process was mainly due to the loss of Al2O3 in the molten salt, and this loss could be delayed by increasing the precursor's sintering temperature and the molten salt temperature.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Cheng Chang, Jiguo Tu, Yunfei Chen, Mingyong Wang, Shuqiang Jiao
Summary: A low-temperature electro-deoxidation strategy for solid SeO2 was proposed for the first time, and the process and products were analyzed in detail. This has significant implications for short-process and green metallurgy of other characteristic scattered metals.
CHEMICAL COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Zahra Lotfi, Peyman Keshavarz
Summary: The study found that the presence of MDEA in TEG solution did not significantly decrease absorption efficiency during gas dehydration, and in some cases even slightly increased the performance. Increasing liquid flow rate had little effect on absorption efficiency, while increasing gas flow rate reduced it. The presence of 5 vol% water in the absorbent solution reduced water vapor absorption efficiency by approximately 20%.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Chemical
James M. Borgman, Paul P. Conway, Carmen Torres-Sanchez
Summary: This study explores the use of inorganic PCA to produce SLM-suitable Ti-Nb alloy powders, instead of traditional organic PCA methods. The results show that the use of inorganic PCAs, particularly calcium, can produce Ti-Nb alloy powders with suitable physical properties for the SLM process.
Article
Materials Science, Ceramics
A. E. Matveev, P. Yu Nikitin, I. A. Zhukov, A. S. Zhukov
Summary: Plastic pollution is a major environmental issue, and efforts are being made to recycle plastic waste into high-purity titanium carbide. The mechanism involves the decomposition of polyethylene terephthalate to form titanium carbide, releasing titanium oxycarbide and carbon dioxide.
CERAMICS INTERNATIONAL
(2021)
Article
Geography, Physical
Shaojun Yan, Ni Xie, Jianhui Liu, Li Li, Lizhou Peng, Siwei Jiang
Summary: This study investigates the effects of salt weathering on sandstone through laboratory experiments on sandstone from the Dazu rock carvings in China. The results show that temperature and humidity fluctuations cause phase change of salt, leading to different levels of damage. The concentration of salt, microstructure of the stone, and distribution of clay minerals affect the damage, with high salt content resulting in disintegration of the stone. No obvious damage occurs when salt content is below 0.67%.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Food Science & Technology
Pedro Garcia-Serrano, Concepcion Romero, Pedro Garcia-Garcia, Manuel Brenes
Summary: The preservation of olives intended for processing as black ripe olives must be done in a salt-free environment, and adding calcium chloride and calcium lactate can help delay olive softening and increase texture and calcium content. It is recommended to add the cation to the cover packing brine of pitted olives rather than to the preservation liquid.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Composites
Manoj Panchal, Om Prakash Minugu, Raghavendra Gujjala, Shakuntala Ojha, Somaiah Mallampati Chowdary, Alamgir Mohammad
Summary: This study focuses on extracting hierarchical porous carbon and incorporating it into polymer composites to enhance their erosion wear resistance and hardness. The results show that the addition of activated carbon particles improves the hardness and wear resistance of the composites, but moisture absorption reduces their erosion wear resistance.
POLYMER COMPOSITES
(2022)
Article
Construction & Building Technology
Chen Ruixing, Liu Jiaping, Mu Song
Summary: In this study, calcium stearate was used to improve the hydrophilicity of concrete. The results showed that as the content of calcium stearate increased, the water absorption of concrete decreased, compressive strength decreased, but the resistance to chloride penetration increased. The improvement by calcium stearate was mainly due to the increased contact angle and improved hydrophobicity inhibiting the connection of water channels.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Review
Engineering, Chemical
Soheil Bahraminia, Mansoor Anbia, Esmat Koohsaryan
Summary: This paper provides an overview of the issues caused by water vapor in natural gas and biogas, highlighting the importance of dehydration methods and adsorption dehydration techniques. Additionally, it discusses the types of solid desiccants and their improvements.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(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)