Article
Energy & Fuels
Zijian Zhou, Lei Liu, Xiaowei Liu, Yue Zhou, Changqing Wang, Jingying Xu, Guozhang Chang, Minghou Xu
Summary: MnOx-based oxides are efficient catalysts for elemental mercury oxidation in flue gas, and combining with CeO2 or CeO2-ZrO2 enhances their catalytic activity. The new MnOx-CeO2-ZrO2 solid solution catalyst showed better Hg-0 oxidation performance compared to the MnOx/CeO2-ZrO2 supported catalyst. Mn4+ and surface active oxygen were identified as the active species in Hg-0 oxidation reactions, and SO2 significantly inhibited the activity of MnOx/CeO2-ZrO2 but had less impact on MnOx-CeO2-ZrO2 solid solution.
Article
Chemistry, Multidisciplinary
Xilan Feng, Dapeng Liu, Baolin Yan, Mingzhe Shao, Zhimin Hao, Guobao Yuan, Haohan Yu, Yu Zhang
Summary: By triggering the aqueous auto-redox reactions between reductive Ce(OH)(3) and oxidative MnO4-/Pd2+ ions, PdO/Mn3O4/CeO2 (PMC) nanocomposites were formed, showing strong synergistic effects. The HPMC nanocomposites exhibited excellent performance in photoassisted thermal catalytic CH4 combustion, with a reduced light-off temperature of 180 degrees C under visible light irradiation. The catalytic reaction process followed the classic MVK mechanism, with O-2 adsorption/activation into active oxygen species (O*) being the rate-determining step for CH4 conversion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Chuan-Bin Du, Zhi Xuan Law, Ren-You Huang, De-Hao Tsai
Summary: A raspberry-structured hybrid nanocatalyst composed of NiCu bimetallic oxide nanoparticle decorated on ceria nanoparticle cluster (NiCuOx@CeO2) was successfully synthesized via a gas-phase evaporation-induced self-assembly approach. The NiCuOx@CeO2 exhibited superior catalytic performance in methane combustion and showed high stability. The addition of CuO promoted the redox ability of NiCuOx in the hybrid nanostructure.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Rajeswari M. Kulkarni, N. Arvind
Summary: The focus of this study was the synthesis of 1,3-dioxane and 1,3-dioxolane using sulfated CeO2-ZrO2 catalyst for the acetalization of glycerol with benzaldehyde. The experiments showed that under specific conditions, high product selectivity could be achieved.
Article
Energy & Fuels
Xiaodi Li, Shan Ren, Lian Liu, Xiangdong Xing, Lin Chen, Jiangling Li, Jian Yang, Qingcai Liu
Summary: The deactivation of denitration catalysts by heavy metals is still a challenge in the practical application of selective catalytic reduction of NOx with NH3. In this study, a novel anti-poisoning strategy was proposed by designing a CeO2/ZrO2 catalyst supported by SO42-/ZrO2 superacid. The introduction of SO42-/ZrO2 significantly enhanced the catalytic performance, leading to high NOx removal efficiency throughout a wide temperature range.
Article
Chemistry, Inorganic & Nuclear
S. M. Fathima Khyrun, A. Jegatha Christy, Jeyanthinath Mayandi, Suresh Sagadevan
Summary: CeO2-based nanocomposites are synthesized using a solution combustion method, and the CeO2/NiO nanocomposite shows promising photocatalytic and antibacterial properties. The structural, optical, and morphological details are analyzed using various characterization techniques, which confirm the successful synthesis of the nanocomposite. The nanocomposite exhibits enhanced photoabsorption and efficient degradation of Methylene Blue dye.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Guang Tang, Pengfei Jin, Yulei Bao, Wai Siong Chai, Lei Zhou
Summary: The study introduces a specially designed premixed combustion chamber system for ammonia-hydrogen and methane-air laminar premixed flames and explores the combustion limits of these flames. Results show that ammonia-hydrogen flames have better combustion performance and increasing the initial temperature of the premixed gas can expand the lean/rich combustion limits.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hao Zhang, Xiaohui Gao, Binwei Gong, Shijie Shao, Chensheng Tu, Jun Pan, Yangyang Wang, Qiguang Dai, Yanglong Guo, Xingyi Wang
Summary: MoOx/CeO2 catalysts with different forms of MoOx on CeO2 were prepared for the catalytic oxidation of 1,2-dichloroethane. The acidity and surface oxygen from CeO2 domain play important roles in the activity of the catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Maria Portarapillo, Danilo Russo, Gianluca Landi, Giuseppina Luciani, Almerinda Di Benedetto
Summary: Green syngas production is a sustainable energy development goal, and thermochemical H2O/CO2 splitting technology shows great promise. Research indicates that K-doped systems can enhance the redox properties of CeO2-ZrO2 systems, improving efficiency and repeatability in CO2 splitting.
Article
Energy & Fuels
Pavel B. Kurmashov, Alexander G. Bannov, Maxim Popov, Andrey E. Brester, Arina Ukhina, Arkady Ishchenko, Evgenii A. Maksimovskii, Lyudmila Tolstobrova, Arsenii O. Chulkov, Gennady G. Kuvshinov
Summary: The catalyst for decomposing methane to carbon nanofibers and hydrogen was successfully prepared using the solution combustion technique. The dynamics of temperature change during the redox reaction process of catalyst synthesis was experimentally determined. Testing of the catalyst showed that under optimal conditions of temperature and pressure, high specific yield of hydrogen could be achieved.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Ceramics
Wanjun Yu, Enliang Zhang, Yongdong Yu, Xiangming Li, Xudong Liu, Yuchen Yuan, Yongting Zheng
Summary: This study prepared Al2O3-ZrO2(CeO2) nanocomposite ceramics by sintering Al2O3-ZrO2(CeO2) supersaturated solid solution powders and investigated the effects of CeO2 on their phase, microstructure, and mechanical properties. The optimum CeO2 content was found to be 6 mol% for achieving the highest strength and toughness.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Mutao Xu, Yao Lu, Liguo Chen, Qijie Jin, Xuelu Meng, Sheng Wang, Chengzhang Zhu, Jian Yang, Haitao Xu
Summary: The current carbonyl sulfur (COS) hydrolysis catalysts have limitations in terms of high applicable temperature, poor low-temperature activity, and stability, restricting their application in blast furnace gas desulfurization. This study investigates the modification of catalyst composition by incorporating Ce, leading to enhanced catalytic performance and H2S selectivity. The addition of Ce increases the specific surface area of the catalyst, improving the adsorption, diffusion, and reaction of reactant molecules. The presence of weak base sites plays a vital role in the hydrolysis reaction, explaining the exceptional low-temperature hydrolysis performance of the modified catalyst.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Shuai Chang, Wei Na, Jiaqi Zhang, Lina Lin, Wengui Gao
Summary: This study investigates the process and mechanism of CO2 conversion to methane. By altering the Zr/Al ratio in Ni catalysts, high CO2 conversion rates and CH4 selectivity can be achieved. Characterization techniques reveal the physicochemical properties and reaction mechanism of the catalysts.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Physics, Condensed Matter
Yihang Dong, Zhaoyang Liu, Lipeng Pang, Ye Han, Shuyu Yao, Xiangnan Wang
Summary: {(Y2O3)0.08(ZrO2)0.92}1-x (CeO2)x (0 < x < 0.6) is synthesized by co-precipitation method, and its properties such as thermal analysis, phase structure, density, open porosity, and electrical conductivity are measured and studied. The increase in CeO2 content leads to an increase in lattice parameters and volume, as well as a decrease in conductivity.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Physical
Ehsan Akbari, Seyed Mehdi Alavi, Mehran Rezaei, Afsanehsadat Larimi
Summary: This research investigates the effect of different promoters on the physicochemical features and catalytic activities of BaO-MnOx catalysts in the catalytic combustion of lean methane. The addition of CeO2 as a promoter shows superior catalytic performance, enhancing oxygen mobility and catalytic activity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Wang Zhao, Hao Su, Weifeng He, Xiaorong Wang, Xiaoyu Cui, Sihai Luo
Summary: Electro-spark deposition (ESD) is an effective method for welding and fabricating coatings, but it can introduce severe surface defects that deteriorate the material performance. This study investigated the effect of key factors on surface features of WC-10 wt.% Co coatings and found that pulse energy, deposition layers, and their interaction significantly affect coating defects. It was also discovered that ultra-low efficiency deposition in the later stage of ESD can effectively repair coating defects.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Rheumatology
Baozhen Huang, Xinning Wang, Yanlin Niu, Yuchuan Ding, Xiaolei Wang, Qingqing Tan, Yucong Li, Yuan Liu, Ying Chi, Yuan Wang, Zhixuan Zhou, Jianguo Li
Summary: This study evaluated the use of JAKi in treating JDM and found it to be a relatively safe and effective alternative. Cytokine profiles were able to reflect the inflammatory status of JDM patients.
Article
Materials Science, Multidisciplinary
Jiahao Zhang, Qiucheng Xu, Jingyu Wang, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: Researchers have demonstrated a novel electrocatalyst that can improve the efficiency of water electrolysis by breaking the scaling relationship of the oxygen evolution reaction. This catalyst achieves ultrahigh current density at a low potential, with low overpotential and high stability under high current densities.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Applied
Xiongfa Yang, Yan Song, Yaohuang Jiang, Xiaoling Wang, Yina Yang, Jianhua Wang, Xiaojia Wang, Na He, Guoqiao Lai, Yanchun Yu
Summary: UV-curable silicone modified antibacterial materials containing Schiff base were prepared and showed good antimicrobial activity against E. coli and Neurospora crassa. A contact-kill antibacterial mechanism was proposed. These materials also exhibited high transparency and hardness. Their mechanical performance was also good with a tensile strength of 11.6 MPa. These UV-curable Schiff base-containing antibacterial silicone modified materials may be a promising candidate for antibacterial materials.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Psychiatry
Jingjing Shi, Xiaohong Wang, Na Zhao, Chuanyi Kang, Liying Yang, Yue Zheng, Jiacheng Liu, Lei Feng, Xuequan Zhu, Caina Ma, Wenyuan Wu, Gang Wang, Jian Hu
Summary: This study compared the sex differences of residual somatic symptoms (RSS) in patients with first-episode depression (FED). The results showed that RSS is common in FED patients, with females more likely to experience stomach pain and males more likely to experience trouble sleeping. Additionally, quality of life plays an essential role in RSS in both genders. Therefore, sex differences should be considered when assessing the relationship between RSS and therapeutic effect in depression.
Article
Chemistry, Applied
Xue Zhang, Xueya Xu, Xiaoying Wang, Yajuan Lin, Yaling Zheng, Wen Xu, Jian Liu, Wei Xu
Summary: A glycyrrhetinic acid-modified carboxymethyl chitosan-thioketal-rhein (GCTR) conjugate was synthesized for the in vivo delivery of celastrol. Celastrol was encapsulated into polymeric micelles formed by GCTR conjugates self-assembly in water, resulting in celastrol/GCTR PMs with high drug loading capacity and small particle size. Celastrol/GCTR PMs exhibited sustained-release in the blood environment and rapid-release in the tumor microenvironment, showing significant proliferation inhibitory effect on HepG2 and BEL-7402 cells and negligible impact on L-02 cells at low concentrations. The reactive oxygen species (ROS)-responsive properties of celastrol/GCTR PMs improved the bioavailability of celastrol and showed remarkable hepatoma-targeting properties. Celastrol/GCTR PMs effectively inhibited tumor growth with no apparent damage to different organs.
CARBOHYDRATE POLYMERS
(2023)
Article
Immunology
Yang Zhou, Guo-Hong Zheng, Na Li, Jing-Jing Liu, Xiao-Hong Wang, Yu-Feng Li
Summary: Immune checkpoint inhibitors (ICIs) have shown revolutionary efficacy in the treatment of multiple cancers. Cytokine-release syndrome (CRS) is a common and lethal adverse event in chimeric antigen receptor T-cell therapy but rare in ICI therapy. This case report describes a patient with hypopharyngeal squamous cell carcinoma who developed CRS after receiving toripalimab combined with chemotherapy, leading to rapid progression and death.
Article
Engineering, Chemical
Jiachen Guo, Zhiyuan Peng, Hu Wang, Liu Yang, Ling Zhang, Chunzhong Li
Summary: In this study, urea-assisted ball milling method was used to enhance the thermal conductivity, flame resistance, and mechanical properties of cellulose nanofiber-based film by creating the covalent bond between boron nitride nanosheets (BNNS) and black phosphorus (BP). The treated film showed high thermal conductivity at 50% loading, with reduced fire hazard.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Zhichao Shen, Yanbin Qi, Wangxin Ge, Hongliang Jiang, Chunzhong Li
Summary: Cu/Ni-B interface catalysts improve the efficiency of ureaelectrooxidation and promote the formation of N-2. This study isinstructive for the design of electrocatalysts for other nucleophileelectrooxidation reactions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Automation & Control Systems
Weijia Zheng, YangQuan Chen, Xiaohong Wang, Runquan Huang, Meijin Lin, Fang Guo
Summary: This paper proposes a fractional order sliding mode control (FOSMC) method for the control problem of permanent magnet synchronous motor (PMSM) speed servo system subject to multiple disturbances. By using an improved disturbance observer (DO) and an extended state observer (ESO), the lumped exogenous disturbances and uncertainties of the PMSM speed servo are estimated. A novel FOSMC law is developed by incorporating feedforward compensation and a fractional order switching law, improving tracking performance and robustness of the PMSM servo system.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2023)
Article
Physics, Fluids & Plasmas
W. Zhang, G. -h. Zhu, X. -j. Zhang, G. -q. Zhong, L. Ai, Y. -q. Chu, T. -s. Fan, H. -c. Fan, Y. -y. Guo, B. -l. Hao, J. Huang, Y. -f. Jin, L. -n. Liu, L. -y. Liao, Y. -h. Li, Q. -c. Liang, Y. -x. Sun, G. X. Wang, D. -k. Yang, H. Yang, H. -p. Zhang
Summary: ICRF heating and NBI can synergistically accelerate beam ions and generate fusion neutrons. The synergy improves plasma performance and increases parameters such as poloidal beta, plasma stored energy, core ion temperature, neutron yield, and kinetic pressure. Various parameter scans show that decreasing minority ion concentration or the distance between resonance and magnetic axis, as well as increasing ICRF heating power or NBI beam energy can enhance the synergetic effects and result in higher energy fast ions.
Article
Physics, Fluids & Plasmas
L. F. Lu, B. Lu, X. J. Zhang, L. Colas, G. Urbanczyk, Z. Wang, Z. J. Li, B. L. Hao, L. Xue, M. Xue, S. Wang, A. P. Sun
Summary: The HL-2M tokamak is a new medium-sized tokamak that aims to achieve 10 keV ion temperature and investigate energetic particles relevant to burning plasmas. This paper analyzes the main ICRF heating schemes for HL-2M and proposes optimal RF frequency and antenna parameters for ion heating and energetic ion generation. Simulation results suggest that ICRF heating can significantly contribute to ion heating and the production of energetic ions in HL-2M.
Article
Oceanography
Li Li, Yihan Ren, Taoyan Ye, Xiao Hua Wang, Jianyu Hu, Yuezhang Xia
Summary: Curvature variations in tidal flats have a strong influence on sediment dynamics in macro-tidal turbid bays. This study used a validated 3D sediment model to investigate the interactions between tidal flats and sediment dynamics in Hangzhou Bay. The results showed that the geometry of the tidal flats greatly affects hydrodynamics and sediment transport processes. Tidal flat reclamation alters the curvature of tidal channels and subsequently influences the circulation and sediment transport. The study highlights the importance of anthropogenic activities in shaping the geomorphological evolution of estuaries.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Chemistry, Multidisciplinary
Jia-Tong Ren, Ding Wei, Bo-Jun Tan, Rui Hu, Yu-Chen Gao, Xiao-Hong Wang, Wei-Tao Yang
Summary: Developing MOF-based catalysts with superior catalytic properties for the thermal decomposition of RDX is crucial for efficient combustion of RDX-based propellants. In this study, micro-sized Co-ZIF-L with star-like morphology exhibited remarkable catalytic capability, lowering the RDX decomposition temperature by 42.9°C and increasing the heat release by 50.8% compared to all previously reported MOFs and even ZIF-67. The unique structure of SL-Co-ZIF-L activated the exothermic C-N fission pathway, promoting the decomposition process at low temperatures.
Article
Environmental Sciences
Fei Peng, Xiaolei Wang, Guodong Fang, Yanzheng Gao, Xinglun Yang, Juan Gao, Yujun Wang, Dongmei Zhou
Summary: In this study, various soil model minerals were investigated for their effects on PS decomposition and free radical evolution. It was found that the efficiency of PS decomposition varied among different minerals, involving both radical and non-radical processes. This study provides a deeper understanding of the interactions between PS and minerals during PS-based ISCO in soil remediation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)