Article
Chemistry, Inorganic & Nuclear
Aref Mamakhel, Frederik Holm Gjorup, Magnus Klove, Kasper Borup, Bo Brummerstedt Iversen
Summary: A highly reproducible, simple, and inexpensive synthesis method for obtaining phase-pure thermochromic monoclinic VO2 (M1) is presented. The formation process and transition behavior of VO2 (M1) under heating and cooling conditions were studied using various characterization techniques.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Jing Wan, Peiyuan Ji, Bangxing Li, Yi Xi, Xiao Gu, Li Huang, Mingquan He, Chenguo Hu
Summary: This study demonstrates that Al doping can significantly enhance the specific capacitance and cycling stability of delta-MnO2 supercapacitor cathode, attributed to the introduction of more active sites and improved electronic transport. Additionally, calculations show that doped systems have smaller surface energies, leading to better cycling lifetime.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Qiuyue Chen, Lin Huang, Qingquan Kong, Xuguang An, Xiaoqiang Wu, Weitang Yao, Chenghua Sun
Summary: Transition metal sulfides are efficient electrocatalysts for oxygen evolution reaction (OER). In this study, Fe doped Ni3S2 nanosheets were grown on nickel foam using a simple hydrothermal process. The addition of Fe improved the catalytic activity of Fe-Ni3S2/NF. The catalyst showed high stability and promising OER electrocatalytic activity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Sarika Jadhav, Ramchandra Kalubarme, Ratna Chauhan, Anar Singh, Bharat Kale, Muthupandian Ashokkumar, Suresh Gosavi
Summary: A spherical and porous Co3-xAgxO4 (x=0 to -0.4) nanocomposite was synthesized using a simple and scalable combustion method. The Ag-doped Co3O4 nanocomposite exhibited high stability, crystallinity, and porosity, with particle sizes ranging from 20 to 50 nm. The specific capacitance of the Co2.7Ag0.3O4 electrode was higher than other electrodes due to the large Ag/Co3O4 interface, which enhanced electrical conductivity and facilitated rapid charge transfer. The CA(3) nanocomposite showed a specific capacitance value of 648 F g(-1) at a current density of 0.25A g(-1), significantly higher than undoped Co3O4 and Ag-doped Co3O4 nanocomposites prepared at other concentrations.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Haiyan Yang, Yaru Dang, Xu Cui, Xianni Bu, Jiong Li, Shenggang Li, Yuhan Sun, Peng Gao
Summary: This study fabricated zinc- and sodium-modulated iron catalysts, which exhibited the best activity and stability. Copper was found to decrease the energy barrier of the rate-determining step for olefin hydrogenation and result in a lower olefin-to-paraffin ratio. The ZnO/Fe5C2 interface facilitated olefin desorption and inhibited the undesirable secondary reaction of olefins, enabling a high selectivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Analytical
Mehar Un Nisa, Karam Jabbour, Sumaira Manzoor, Khaled Fahmi Fawy, Abdul Ghafoor Abid, Fayyaz Hussain, Shaimaa A. M. Abdelmohsen, Meznah M. Alanazi, Muhammad Naeem Ashiq
Summary: Development of an effective electrocatalyst for the electrochemical water splitting and improving the sluggish OER is crucial. In this study, Nd-MnO with a large specific surface area, small particle size, and high concentration of oxygen vacancies was prepared using a simple solution reduction method. Nd-MnO exhibited superior performance in terms of overpotential and Tafel slope value compared to RuO2 and MnO, which can be attributed to its unique nanocube structure promoting OH ion diffusion and providing abundant active sites for OER catalysis, as well as the oxygen vacancies enhancing electronic conductivity and water adsorption.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Xiang Li, Zhanhong Xu, Guoping Pan, Keli Ji, Xingwang Cheng
Summary: M phase Eu-doped VO2 powders with different doping concentrations were prepared. The effects of Eu doping on the semiconductor-metal transition and crystal quality of VO2 were investigated. The results show that low dose Eu doping enhances the switching ability of VO2's infrared transmittance and improves crystal quality, while high dose Eu doping induces the formation of M-2 phase at room temperature. The findings suggest that Eu doping is an effective strategy for synthesizing high-quality M phase VO2 materials for smart window coatings.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Kyonghun Ri, Inchol Paek, Hochol Ri, Kyongju Kim, Juhyon Yu, Dongil Choe, Sungchol Jo, Kyongil Oh, Chongsong Han, Kwanghyok Pak
Summary: The study used low-grade manganese clay with a grade of 6.1% Mn as the raw material, and the main manganese mineral was pyrolusite. FeCl2 center dot 4H(2)O and a dilute hydrochloric acid solution were selected as the most effective reductant and solvent, and the leaching efficiency of manganese and iron was greater than 92% and 70%, respectively. The interaction of the ferrous ion and hydrochloric acid was studied through leaching tests and regression analysis, and the redox reaction of glucose and nitric acid effectively separated iron and recovered hematite and hausmannite.
Article
Materials Science, Multidisciplinary
Qasim Abbas, Lianghua Wen, Abdul Mateen, Najam Ul Hassan, Asim Idrees, Zia Ur Rehman, Majed A. Bajaber, Muhammad Sufyan Javed
Summary: This study synthesized hexagonal-phase manganese dioxide nanoparticles on conductive carbon cloth through a simple hydrothermal strategy. The resulting structure showed a large specific surface area and high porosity, making it an excellent candidate for positive electrode materials in high-performance supercapacitors. The electrode exhibited a high specific capacitance and excellent cycling stability.
Article
Chemistry, Physical
Jiao-Jiao Duan, Zhu Han, Ru-Lan Zhang, Jiu-Ju Feng, Lu Zhang, Qian-Li Zhang, Ai-Jun Wang
Summary: This study demonstrated the fabrication of Fe and Mn co-doped 3D Ni3S2 nanoflowers on nickel foam, showing excellent catalytic performance for the oxygen evolution reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Environmental
Mengyao Li, Bihai Cai, Ruoming Tian, Xiaojiang Yu, Mark B. H. Breese, Xueze Chu, Zhaojun Han, Sean Li, Rakesh Joshi, Ajayan Vinu, Tao Wan, Zhimin Ao, Jiabao Yi, Dewei Chu
Summary: This study presents a method to fabricate high-efficiency V-doped MoS2 nanosheets with excellent catalytic performance and stability, providing new insights for hydrogen evolution reaction in water splitting.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Rupam Sen, Sanchayeeta Paul, Alolika Sarkar, Alexandre M. P. Botas, Albano N. Carneiro Neto, Paula Brandao, Armandina M. L. Lopes, Rute A. S. Ferreira, Joao P. Araujo, Zhi Lin
Summary: A new series of 3D lanthanide frameworks were synthesized and analyzed by single crystal X-ray diffraction. The compounds exhibit different magnetic and photoluminescence properties, with compound 2 showing antiferromagnetic coupling and compound 3 showing ferromagnetic interaction above 40 K. The emission spectra of the compounds combine intra-4f emission of the Ln ions with that of the ligand, depending on temperature, indicating thermally activated energy transfer processes.
Article
Engineering, Environmental
Dong Li, Fang Zhang, Lei Luo, Yewen Shang, Shengshu Yang, Jiaxiao Wang, Wenxing Chen, Zhengang Liu
Summary: This study presents a new method for the synthesis of carbon-based transition metal single-atom catalysts using hydrothermal treatment and a mechanochemical method. The hydrothermal treatment results in relatively uniform dispersion of metal ions in the carbonaceous matrix, and compression plays a vital role in the formation and anchoring of the single atom. The prepared catalyst exhibits excellent reactivity performance due to the in-situ formation, unique coordination surroundings, and high content of metal atoms.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Mona A. Naghmash, M. Saif, Hala R. Mahmoud
Summary: Research was conducted on the catalytic decomposition of H2O2 using pure Bi12SiO20 and Bi12SiO20 doped with different transition metal ions. The doped catalysts showed better performance, with Mn/BS catalyst exhibiting the best results.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Energy & Fuels
Sonam Rani, Manushree Tanwar, Meenu Sharma, Love Bansal, Rajesh Kumar, Ravi Bhatia, Sameera Ivaturi
Summary: Among transition metal dichalcogenides, molybdenum disulfide (MoS2) is considered as the most cost-effective electrode material for energy storage applications. Altering the synthesis conditions of MoS2 nanoflowers can result in enhanced charge storage performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Yinsheng Xu, Zhengnan Wang, Zhigao Yang, Jongbeom Na, Alowasheeir Azhar, Shengping Wang, Jingxian Yu, Yusuke Yamauchi
Summary: This study presents new insights into the Li+ diffusion mechanism in LiV3O8, revealing a transport mechanism along the b-axis and confirming the electrochemical activity of lattice lithium ions. The conclusions were found to be universal and applicable to many other vanadate compounds, providing a new understanding of ion diffusion for researchers to optimize performance strategies.
ACS ENERGY LETTERS
(2021)
Article
Medicine, General & Internal
Xiao Chen, Yuxia Zhang, Wei Qin, Zhenghong Yu, JingXian Yu, Ying Lin, XiaoRong Li, Zheng Zheng, Ying Wang
Summary: This study found a linear relationship between patient experience with nursing care and overall patient satisfaction, with nursing care experience significantly impacting overall satisfaction in both crude and adjusted models. Even after adjusting for sociodemographic and disease-related factors, patient experience with nursing care explained 34.9% of the variation in overall patient satisfaction.
Article
Chemistry, Physical
Yong An, Yao Cheng, Shengping Wang, Jingxian Yu
Summary: Although employing solid polymer electrolytes (SPEs) in solid-state Li-S batteries (SSLSBs) is a promising approach to obtain both high energy density and safety, the actual cycle property is still rather unsatisfactory. In this work, a coupling effect between lithium polysulfides (LiPSs) and polyethylene oxide (PEO)-based SPEs was identified as the cause of poor cycle life in lithium anodes of SSLSBs. By introducing a fluorine-rich polymer perfluoropolyether alcohol (PFA) as an interfacial layer, the corrosion of lithium metal from LiPSs and the electrochemical decomposition of PEO-based SPEs were effectively prevented, leading to improved performance of the PEO-based SSLSBs with PFA interlayer.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yong An, Hongquan Wang, Zhigao Yang, Jingxian Yu, Shengping Wang
Summary: An integrated configuration of organic active material electrode-solid polymer electrolyte has been synthesized via in situ polymerization. The use of a bridge - the naphthalene urethane bond - improves the Li+ transport at the electrode/SPE interface, resulting in enhanced electrochemical and safety performance of the battery.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Endocrinology & Metabolism
Xuan Shen, Yajun Zhang, Xuetao Ji, Bo Li, Yuzhu Wang, Yun Huang, Xu Zhang, Jingxian Yu, Ruihan Zou, Dongdong Qin, Hongwen Zhou, Qian Wang, John Zhong Li
Summary: A novel lncRNA regulator of hyperlipidemia (lncRHL) was identified in this study, showing differential expression in the liver under high-fat diet and oleic acid treatment, and regulating hepatic VLDL secretion. This lncRNA maintains intrahepatic and plasma lipid homeostasis by modulating the hnRNPU/BMAL1/MTTP axis.
Article
Nursing
Yue Zhai, Shining Cai, Xiao Chen, Wenjuan Zhao, Jingxian Yu, Yuxia Zhang
Summary: This study explores the impact of nursing organizational culture, work engagement, and affective commitment on nurses' thriving at work, confirming the social embeddedness model. Work engagement and affective commitment mediate the relationship between nurses' perceived nursing culture and their thriving at work. Nurse leaders can enhance nursing staff's thriving by creating an inclusive work environment.
JOURNAL OF ADVANCED NURSING
(2023)
Article
Chemistry, Multidisciplinary
Shengping Wang, Peimeng Qiu, Zhihuan Xue, Chenyang Zhang, Yi Li, Yu Dai, Jingxian Yu
Summary: Organic electrode materials have gained attention in the research of energy storage due to their renewable and environmentally friendly features. This study explores the lithium storage behavior of riboflavin in lithium-ion batteries, inspired by the energy transduction mechanism of flavin adenine dinucleotide. The study uses computational calculations and experimental evaluations to clarify the redox reaction mechanism and validate the rationality of the proposed mechanism.
JOURNAL OF CHEMICAL EDUCATION
(2022)
Article
Engineering, Environmental
Huixi Li, Chenyang Zhang, Weijun Xiang, Mohammed A. Amin, Jongbeom Na, Shengping Wang, Jingxian Yu, Yusuke Yamauchi
Summary: In this study, a promising nanoporous W-doped oxygen vacancy-containing NiFe layered double hydroxides (NiFeW-LDHs) electrocatalyst is directly grown on nickel foam via electrodeposition combined with chemical corrosion. The representative NiFeW3-LDHs exhibit remarkable OER electrocatalytic activity with a low overpotential, a small Tafel slope, and fine stability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Zhihuan Xue, Yu Zhan, Shengping Wang, Jingxian Yu
Summary: The study investigates the relationship between solvothermal temperature of polyimide (PQI) and its surface morphology, structure, and electrochemical properties. The research reveals that PQI as an electrode material exhibits improved solubility, surface structure, and electrical conductivity. The rich pore structure of PQI facilitates ion migration and reduces diffusion impedance, while its uniform three-dimensional mesh structure enhances contact with the conductive agent.
Article
Nanoscience & Nanotechnology
Guoqing Zhang, Luluan Feng, Jingxian Yu, Shengping Wang
Summary: The introduction of high-efficiency catalysts can overcome the slow kinetics issue in Li-S batteries, improving the rates and cycling lives of the batteries. The Co0.4Ni1.6P-V/CNT catalyst plays a crucial role in regulating catalytic activity and increasing electron density, leading to improved utilization of sulfur and better battery performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Analytical
Anusha A. Mahishi, Sachin M. Shet, Padmaja V. Mane, Jingxian Yu, A. Ve. Sowriraajan, Madhuprasad Kigga, Mahesh P. Bhat, Kyeong-Hwan Lee, Mahaveer D. Kurkuri
Summary: A Schiff base receptor with an active -NH group was synthesized for the colorimetric detection of inorganic fluoride (F-) ions in an aqueous medium. The receptor showed enhanced sensitivity for F- ions due to the presence of electron-withdrawing -NO2 groups, resulting in a remarkable color change. Characterization techniques confirmed the structural integrity of the synthesized receptors and a binding mechanism involving deprotonation of the -NH group and formation of -HF2 was proposed.
ANALYTICAL METHODS
(2023)
Article
Electrochemistry
Wenjing Mo, John R. Horsley, Xiaohui Li, Shiqi Sheng, Bianca Jong, Andrew D. Abell, Wenjing Hong, Jingxian Yu
Summary: In this study, a series of beta-strand peptides with electron-rich side chains were synthesized. The results showed that the aromaticity of the side chains was directly linked to the electron transfer rate constants. Single-molecule conductance studies further supported the ability of the electron-rich side chains to facilitate electron transfer. Additional electrochemical analysis revealed intramolecular coupling interactions between the side chains, providing insights on proton coupled electron transfer (PCET).
Article
Chemistry, Multidisciplinary
Peimeng Qiu, Yi Li, Hongquan Wang, Daoyu Li, Shengping Wang, Jingxian Yu
Summary: Grafting organic molecules onto an insoluble matrix improves the electronic conductivity and insolubility of organic electrode materials. The active group of C=N in DAP@C composites synthesized by chemical grafting of 2,3-diaminophenazine (DAP) with carbon felt through amide bonds (-CO-NH-) shows excellent electrochemical behavior.
CHEMICAL COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Huixi Li, Xue Han, Wen Zhao, Alowasheeir Azhar, Seunghwan Jeong, Deugyoung Jeong, Jongbeom Na, Shengping Wang, Jingxian Yu, Yusuke Yamauchi
Summary: This review provides a comprehensive overview of the electrochemical synthesis of nano/microstructure transition metal-based OER materials. It introduces the fundamentals and strategies of electrochemical synthesis, summarizes the morphology and properties of electrochemically synthetic materials, reviews the latest progress in transition metal-based OER electrocatalysts, and discusses the oxygen evolution mechanism. It also presents the advantages, challenges, and opportunities of using electrochemical techniques in the synthesis of transition metal-based OER electrocatalysts, aiming to inspire researchers and promote the development of water splitting technology.
MATERIALS HORIZONS
(2022)
Article
Materials Science, Multidisciplinary
Xue Han, Min Wang, Jingxian Yu, Shengping Wang
Summary: By controlling the optimized potential range of TiS2, maintaining structural stability during discharge and charge, can improve its electrochemical performance.
MATERIALS ADVANCES
(2022)