Article
Green & Sustainable Science & Technology
Xuanpu Wang, Youji Li, Teng Li, Zhiliang Jin
Summary: This research demonstrates the excellent photocatalytic hydrogen evolution capability of a composite bimetallic sulfide ZnCo2S4 and CdS. The synergistic effect of zinc ions and cobalt ions enriches the redox-active sites, improving the hydrogen production efficiency of the catalyst. The experimental results show that the hydrogen evolution amount of the composite catalyst is 10 times that of single CdS, and the catalyst exhibits good stability. The apparent quantum efficiency of the composite catalyst with the best hydrogen evolution activity reaches 17.96%. This work provides a feasible method for expanding the application of CdS in the field of photocatalytic hydrogen evolution.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Engineering, Chemical
Xiaohui Ma, Wenjun Li, Chaojun Ren, Mei Dong, Liang Geng, Tianyu Wang
Summary: The use of non-noble-metal cocatalyst, specifically iron group transition metal phosphides, significantly improves the photocatalytic activity of CdIn2S4 for hydrogen production. Among the M2P/CdIn2S4 photocatalysts, Ni2P exhibits the best co-catalytic activity due to its high conductivity and close conduction band to CdIn2S4. This research is important for developing low-cost and efficient sulfides-based photocatalysts for hydrogen production.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Mengmin Wang, Yijun Zhang, Yang Zhang, Wenxin Ning, Peng Fei Liu
Summary: In this study, a MOF-based derived bimetallic NiCu0.2 co-catalyst was loaded on NH2-MIL-125(Ti) in order to facilitate the transport and separation of photocatalyst carriers. The resulting NiCu0.2/NH2-MIL-125 exhibited a photocatalytic activity of 161.4 μmol g(-1) h(-1) for hydrogen evolution, which is 12.6 times higher than that of Ni/NH2-MIL-125 and even slightly better than Pt/NH2-MIL-125. This work expands the development pathway of cost-effective and highly active bimetallic co-catalysts for photocatalytic H-2 evolution.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Chemistry, Physical
Ekaterina V. Sukhanova, Viktor S. Baidyshev, Anton M. Manakhov, Abdulaziz S. Al-Qasim, Zakhar I. Popov
Summary: The utilization of H2S for hydrogen and sulfur production is a challenging task, but it offers an environmentally friendly energy source. Heterogeneous catalysis is the preferred method for H2S decomposition, with two-dimensional nanostructures showing promise due to their large contact surface area with the reagent. The cyclic functionalization of metal sulfides, particularly iron sulfides, has attracted special attention from experts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Wasim Ullah Khan, Ahmed Al Shoaibi, Srinivasakannan Chandrasekar, Mohammad M. Hossain
Summary: Nickel and cobalt-based titania-supported bimetallic catalysts with varying metal loading were synthesized. High-loading catalysts showed higher activity and stability, with 25NCT catalyst exhibiting the highest methane conversion and carbon yield. The catalyst's enhanced activity can be attributed to its higher specific surface area and the formation of carbon nanotubes through tip-growth and base-growth mechanisms.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Licheng Huang, Ruiqi Yao, Zili Li, Jiaxin He, Yingqi Li, Hongxiang Zong, Shuang Han, Jianshe Lian, Yang-Guang Li, Xiangdong Ding
Summary: Transition metal-based nanomaterials have high potential as electrocatalysts for alkaline water splitting. In this study, a one-step sulfidation method was used to prepare highly efficient electrocatalysts by incorporating Mn and Zn into FeMnZn multi-metal skeletons. The optimized FMZS2 catalyst exhibited superior electrocatalytic performance for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) compared to Pt/C and IrO2 catalysts, respectively. Furthermore, the assembled alkaline electrolyzer showed better overall water splitting capability than noble metal ones.
Article
Chemistry, Physical
Wei Wang, Tao Li, Sridhar Komarneni, Xin Lu, Baojiang Liu
Summary: This review focuses on the recent progress of highly efficient Co-based co-catalysts for water splitting, emphasizing the structure-activity relationships and discussing the co-catalytic reactivities of various Co-based materials when coupled with host semiconductors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yuzhen Fang, Rongzheng Liu, Shuangxin Dou, Qianqian Shang, Dongting Wang, Xiangjin Kong, Junhai Liu
Summary: A ternary composite photocatalyst consisting of nickel sulfide supported on the heterojunction of ultrathin cadmium sulfide-carbon based on g-C3N4 nanosheets was successfully prepared in a low-temperature aqueous-phase method. The chemical compositions and morphology of the catalyst were confirmed by various characterization techniques. The addition of nickel improved the specific surface area of the catalyst, promoting carrier migration and reactant diffusion. The electron structures analysis revealed the transfer of electrons from g-C3N4 to CdS at the heterojunction interface, with strong interaction between CdS and g-C3N4. The hydrogen evolution performance demonstrated that the ternary composite photocatalyst outperformed the single systems and binary systems. This study provides a solution to the high recombination rate of photo-electrons and holes, as well as the insufficient active sites in single materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Defang Liang, Yishuang Wang, Mingqiang Chen, Xuanlan Xie, Chang Li, Jun Wang, Liang Yuan
Summary: This study successfully synthesized a highly efficient Ni-Co alloy catalyst, which can effectively treat greenhouse gases and produce high-value products through methane dry reforming. The research provides important guidance for the development of clay-based metallic Ni catalysts and their applications in syngas production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Rui Li, Yanyun Wang, Changjiang Zuo, Jiajia Wang, Xiaoli Sheng, Yuzhong Huang, Yiwei Zhang, Yuming Zhou
Summary: In this study, bimetallic PtNi nanoparticles loaded on 2D g-C3N4 nanosheets were successfully synthesized as photocatalysts using a facile strategy of chemical reduction. The addition of PtNi nanoparticles provided new H+ reduction sites and increased the number of active sites in the material. The synergistic effect between PtNi alloy nanoparticles and 2D g-C3N4 nanosheets regulated the electronic structure, accelerated charge transfer efficiency, and inhibited the recombination of photo-induced electron and hole pairs, resulting in improved hydrogen evolution activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Haiwei Su, Xiaohui Yu, Weikang Wang, Lele Wang, Hua Tang, Qinqin Liu
Summary: We report the use of two-dimensional Ni-Co hydroxide monolayers as a highly active cocatalyst for enhancing the photocatalytic H-2 evolution of 2D g-C3N4 nanosheets. The NiCo-HMs improve the kinetics of the catalytic reaction and show high photocatalytic H-2 evolution.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Wenwen Liu, Renfu Peng, Jun Pan
Summary: In this study, PtPd/C3N4 composites were constructed by in situ growth of cubic PtPd bimetallic co-catalyst on the surface of C3N4 for enhanced photocatalytic hydrogen generation. By optimizing the loading content of the co-catalyst, the composite achieved a maximum hydrogen generation rate of 54.31 µmol/h. The efficient separation and transfer of photoinduced carriers was attributed to the extractive properties of PtPd bimetal and the face-to-face interface between PtPd cubes and C3N4 nanosheets, providing high-speed carrier transfer channels. This work highlights the importance of constructing cost-effective and suitable shape co-catalysts for enhanced photocatalytic activity.
JOURNAL OF NANOPARTICLE RESEARCH
(2021)
Article
Chemistry, Physical
Kaiyue Sun, Fen Qiao, Jing Yang, Haitao Li, Yi Cui, Peng Fei Liu
Summary: This study successfully synthesized fluffy spherical CoeNi(3)S(2) on nickel foam via a two-step hydrothermal method. By doping cobalt ions, the strong interaction of SeH bond on the Ni3S2 surface was weakened, promoting the adsorption and dissociation of water molecules and improving the hydrogen evolution performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Shuo Gu, Yi Zhang, Xiaoyu Zhou, Kai Sun, Di Wu, Kaiyue Gao, Xiufang Wang
Summary: Hollow composite nanospheres of hierarchical Bi/Mo/bismuth molybdate (Bi-Mo-BMO) were prepared through a simple two-step reaction, which showed enhanced photocatalytic activity compared to pure Bi2MoO6. The Bi-Mo-BMO photocatalyst exhibited high degradation efficiency of Rhodamine B (RhB) and maintained good stability even after eight cycles of reuse.
JOURNAL OF MATERIALS RESEARCH
(2021)
Article
Energy & Fuels
Zhengguang Zou, Qian Wang
Summary: Bimetallic sulfide nanoparticles (FeNiSs) prepared by a facile solvothermal method exhibit excellent catalytic performance for oxygen evolution reaction (OER) with high current densities, low Tafel slope, and superb durability, indicating their potential as efficient and durable electrocatalysts for energy conversions.
Article
Gastroenterology & Hepatology
Lihong Mao, Chaoqun Li, Xiaoyu Wang, Mingyu Sun, Yifan Li, Zihan Yu, Binxin Cui, Gaoyue Guo, Wanting Yang, Yangyang Hui, Xiaofei Fan, Jie Zhang, Kui Jiang, Chao Sun
Summary: This study found that in decompensated cirrhosis, low subcutaneous adipose tissue index (SATI) and concurrent total adipose tissue index (TATI) were associated with an increased risk of frailty.
JOURNAL OF CLINICAL AND TRANSLATIONAL HEPATOLOGY
(2023)
Article
Allergy
Qiuyan Liang, Jinrong Fu, Xiang Wang, Lijuan Liu, Wenfeng Xiao, Yajing Gao, Lan Yang, Hongmiao Yu, Xueru Xie, Zikun Tu, Saihua Huang, Xiao Han, Liling Qian, Yufeng Zhou
Summary: This study identified 372 differentially expressed circRNAs in peripheral blood mononuclear cells (PBMCs) of children with asthma. Among them, a circRNA called circS100A11 was highly expressed in monocytes and significantly upregulated in children with asthma. Further experiments demonstrated that circS100A11 promoted M2a macrophage activation by enhancing translation of its host gene, S100A11, and exacerbated lung inflammation in a mouse model of asthma. The study also found that circS100A11 competitively bound to CAPRIN1 to promote S100A11 translation, thereby enhancing M2a macrophage activation.
Article
Fisheries
Hui Jun Huo, Tian Zhen Yang, Qing Zhu, Ning Yang, Chao Li
Summary: This study compared collectins from a range of vertebrates and found that they are widely distributed and conserved. The collectin from a marine teleost, the black rockfish, was analyzed in detail, revealing the need for further research on its sugar binding mechanism.
Article
Engineering, Environmental
Dandan Liang, Zeng Li, Guohong Liu, Chao Li, Weihua He, Jiannan Li, Yujie Feng
Summary: Periodic polarity reversal strategy can effectively cultivate bidirectional electron transfer biofilm and utilize the characteristics of biofilm to facilitate nitrate reduction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Fisheries
Min Cao, Qi Li, Xiantong Liu, Qiang Fu, Chao Li
Summary: Sebastes schlegelii is a fish species with high economic value, but the outbreak of diseases in its aquaculture industry has caused significant economic losses. Study of the fish immune system, particularly the immunoglobulin genes, can provide insights into the immune response to pathogens and contribute to the development of prevention and control methods. This study successfully identified and cloned the immunoglobulin heavy chain genes (sIgM, mIgM, sIgT, and mIgT) of S. schlegelii, revealing their high conservation during evolution.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Xiaoyan Zhang, Haohui Yu, Ningning Wang, Chao Li
Summary: Evidence suggests that lncRNAs are involved in various immune responses in vertebrates. In the snakehead fish, immune-related lncRNAs play crucial roles in regulating immune responses against Nocardia seriolae infection. This study analyzed the transcription landscapes of lncRNAs and mRNAs in snakehead, revealing potential functions of lncRNAs in modulating mRNA expression levels and regulating downstream immune signaling pathways.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Xin Cai, Chengbin Gao, Alan J. Lymbery, Nicola J. Armstrong, Le Ma, Chao Li
Summary: Recently, the Gram-negative pathogenic bacterium Vibrio anguillarum has become a major obstacle to the turbot aquaculture industry due to its global distribution, wide host range, and potential devastating impacts. This study conducted comprehensive analyses of whole-transcriptome sequencing in turbot liver infected by V. anguillarum and found differential expression of circRNAs, miRNAs, and mRNAs. Interaction pairs between miRNA-circRNA and miRNA-mRNA were predicted and circRNA-related ceRNA regulatory networks were constructed. The study identified novel target genes for disease prevention and control in turbot.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Yiping Liu, Min Cao, Xu Yan, Xin Cai, Yuqing Li, Chao Li, Ting Xue
Summary: Cell-to-cell communication through gap junction channels is essential for coordinating cellular functions in multicellular tissues. This study identified 48 members of the gap junction protein family in Sebastes schlegelii, classifying them into connexin and pannexin types. The connexins were further divided into five subfamilies. The study also revealed the protein structure and interactions of GJs, and showed that GJ proteins were highly expressed in intestinal tissues and regulated after bacterial infection. The findings provide valuable insights for further understanding the function of GJ proteins in S. schlegelii.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Fisheries
Chengbin Gao, Xin Cai, Alan J. Lymbery, Le Ma, Min Cao, Chao Li
Summary: An integrative analysis was conducted in black rockfish intestine and spleen after bacterial infection, revealing a cooperation between the immune genes of the two organs. Two key immune genes and their related non-coding RNAs were identified in the regulation mechanism of the intestine-spleen axis during different bacterial infections. These findings provide insights into the immune response in black rockfish.
Article
Pediatrics
Mei Mei, Dan Dai, Zhuoyao Guo, Congcong Zhang, Jing Liu, Yuanyuan Qi, Xiaochuan Wang, Libo Wang, Liling Qian
Summary: This study retrospectively analyzed the clinical characteristics and underlying causes of 551 hospitalized children with recurrent pneumonia from January 2016 to January 2021 at the Children's Hospital of Fudan University. The majority (87.7%) of the children had underlying causes, with recurrent aspiration, primary immunodeficiency, and congenital heart diseases being the most common. Genetic defects were identified in about a quarter of the patients. Primary immunodeficiency, primary ciliary dyskinesia, bronchiolitis obliterans, and the age of >3 years at diagnosis were risk factors for severe outcomes. Aspiration and an abnormal family history were risk factors for rehospitalization.
PEDIATRIC PULMONOLOGY
(2023)
Article
Computer Science, Information Systems
Jian Cheng, Quanyuan Feng, Chao Li, Wenxiu Yang
Summary: In this paper, a new run-time monitoring technique is proposed to detect hardware Trojans (HT) on working field-programmable gate array (FPGA), which can enhance the hardware security of IoT devices. The technique places multiple temperature sensors on FPGA and collects their values at each time interval. A predictive model is constructed to estimate the real-time distribution of sensor frequency. If the difference between the predicted value and the real one exceeds a dynamically updated threshold, an HT activation is reported. The experiment results demonstrate that the technique achieves high detection accuracy (>= 98%), low false negative ratio (<= 1.5%), and zero false positive ratio under various FPGA HT benchmarks.
Article
Biochemistry & Molecular Biology
Donglei Sun, Xin Qi, Haishen Wen, Chao Li, Jianlong Li, Jiwei Chen, Zexin Tao, Mingxin Zhu, Xiaoyan Zhang, Yun Li
Summary: A new yellow-mutant northern snakehead with market-favoured yellow skin was discovered in China. It was confirmed to be an albino with a non-sense mutation in slc45a2 gene as the causation for the yellow skin. Comparative transcriptomic analysis revealed the potential involvement of fibroblasts in pigmentation in fish.
Article
Biochemistry & Molecular Biology
Min Cao, Ting Xue, Huijun Huo, Xiaoyan Zhang, Ning Ning Wang, Xu Yan, Chao Li
Summary: Spatial transcriptomes were used to study the transcriptomic landscape in the posterior intestine of Sebastes schlegelii following Edwardsiella piscicida infection. A molecular regionalization of the posterior intestine was observed in the healthy condition. After bacterial infection, immune-related genes were predominantly found in the mucosa layer. The expression of regeneration-related genes suggested the constant proliferation of new cells in response to pathogen invasion, while increasing microbiota communities indicated their role in maintaining intestinal integrity and shaping the mucosal immune system.
Article
Pediatrics
Lingyu Lai, Yong Lu, Zhimin Xi, Fang Liu, Liling Qian, Libo Wang, Quming Zhao
Summary: This article reports two cases of bronchial Dieulafoy's disease in children, causing recurrent massive hemoptysis. The disease was diagnosed through imaging examinations and bronchial arteriography, and was successfully treated with bronchial artery embolization, with no recurrence of hemoptysis.
TRANSLATIONAL PEDIATRICS
(2023)
Article
Construction & Building Technology
Youmei Zhou, Hao Lei, Xiyu Zhang, Shan Wang, Yingying Xu, Chao Li, Jie Zhang
Summary: This research explores how to incorporate social attributes and social interaction into scenario simulation in the digital twin city research and development, which is a problem to be addressed in the refinement and planning of future digital platforms and management in terms of decision-making. The findings have important implications for inspiring the application of computational decision-making support in urban governance and enhancing comprehensive and sustainable urban regeneration.
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)
