bluuebunny/crossref_metadata_2025_split huggingface dataset:
Gram‐Scale Synthesized Two‐Dimensional VSe2 and SnSe2 for Ultrahigh Electrocatalytic Sulfion Recycling
Authors: Feng Wang , Cheng Mo , Du Ruofan , Wang Yuzhu , Wang Peng , Li Hui , Song Luying , Wen Xia , Yang Junbo , Li Xiaohui , He Jun , Shi Jianping 
Published: April 2022

AbstractThe electrocatalytic sulfion (S2−) recycling and hydrogen (H2) evolution play indispensable roles in converting waste into sustainable energy and boosting hydrogen economy. However, the development of such promising technologies is hindered by the lack of electrocatalysts with low‐cost, high‐efficient, and robust stability. 2D VSe2 and SnSe2 hold great application potentials in the energy‐related fields yet face daunting challenges in terms of large‐scale synthesis. Herein, a gram‐scale and high‐yield strategy is designed with tetradecylamine (TDA) assistance for synthesizing 2D VSe2 and SnSe2. The cooperativity of TDA with V4+ (Sn4+) cations and its stabilization to (100) facets of products contribute to the formation of ultrathin VSe2 nanosheets with abundant wrinkles and SnSe2 nanoflowers with hierarchical structures, which deliver excellent hydrogen evolution reaction and oxygen evolution reaction performances. Significantly, a record‐breaking sulfion oxidation reaction efficiency in 2D VSe2 is uncovered, and the current density is one order of magnitude larger than that of commercial Pt/C catalyst. This work presents a significant breakthrough for scalable synthesize 2D electrocatalysts and provides a new paradigm for sustainable hydrogen generation and water purification.
Synergetic Anion–Cation Redox Ensures a Highly Stable Layered Cathode for Sodium‐Ion Batteries
Authors: Li Xiang , Xu Jialiang , Li Haoyu , Zhu Hong , Guo Shaohua , Zhou Haoshen 
Published: April 2022

AbstractSodium‐ion batteries are commonly regarded as a promising candidate in large‐scale energy storage. Layered iron/manganese oxide cathodes receive extensive attentions due to the element abundance and large theoretical capacity. However, these materials usually undergo obvious degradation of electrochemical performance due to the tendency of Mn dissolution and Fe migration during continuous sodium release and uptake. Herein, a strategy of anion–cation synergetic redox is proposed to suppress the structural deterioration originated from overusing the electrochemical activity of transition‐metal ions, and decreased lattice strain as well as superior electrochemical performance are realized simultaneously. Results show that the Na0.8Li0.2Fe0.2Mn0.6O2 (NLFM) electrode is highly resistant to the erosion of moisture that is distinct from the traditional Mn/Fe‐based electrodes. Moreover, the NLFM electrode demonstrates solid solution behavior without phase transition during cycles. The ultra‐small volume change of 0.85% is ascribed to the negligible manganese dissolution and invisible transition‐metal migration. The high‐stable layered structure assures superior reversible capacity of ≈165 mA h g–1, excellent rate capability, and splendid capacity retention of over 98.3% with 100 cycles. The findings deepen the understanding of the synergy between anion and cation redox and provide new insights to design the high‐stable layered cathode for sodium‐ion batteries.
Two‐Dimensional C/MoS2‐Functionalized Ti3C2Tx Nanosheets for Achieving Strong Electromagnetic Wave Absorption
Authors: Fan Bingbing , Ansar Muhammad Tamoor , Wang Xiaohan , Song Limeng , Du Heng , Lu Hongxia , Zhao Biao , Zhang Rui , Fan Lei , Li Hongxia 
Published: April 2022

AbstractThe fabrication of ultra‐high performance absorbers with low thickness, light weight, hierarchical structure, and strong microwave absorption (MA) capability in a wide frequency range is a critical objective of the scientific community. The unique two‐dimensional lamellar and sandwich‐like structure of MoS2 (S‐Mo‐S) in combination with Ti3C2Tx offers exceptional metallic features, an enriched surface area and a hierarchical structure; hence, it is an appealing alternative to high‐efficiency microwave absorbers. Herein, two‐dimensional C/MoS2‐functionalized Ti3C2Tx hierarchical structures with superior attenuation capabilities (dielectric losses) are creatively designed and fabricated, and a minimal reflection loss (RLmin) of −42.7 dB is achieved at a thickness of only 1.5 mm. These excellent microwave absorption properties are attributed to better impedance matching, which is due to the tunable complex permittivity; intensive interfacial polarization, which stems from the numerous interfaces of multiple components; multiple scattering, which originates from the presence of plentiful two‐dimensional nanosheets; and ohmic loss, which arises from the formation of conductivity networks. The interconnected sandwich‐like and layered structure is proven to be an effective strategy for enriched microwave absorption by functionalized Ti3C2Tx nanocomposites.
Formation of LiF‐rich Cathode‐Electrolyte Interphase by Electrolyte Reduction
Authors: Bai Panxing , Ji Xiao , Zhang Jiaxun , Zhang Weiran , Hou Singyuk , Su Hai , Li Mengjie , Deng Tao , Cao Longsheng , Liu Sufu , He Xinzi , Xu Yunhua , Wang Chunsheng 
Published: April 2022

AbstractThe capacity of transition metal oxide cathode for Li‐ion batteries can be further enhanced by increasing the charging potential. However, these high voltage cathodes suffer from fast capacity decay because the large volume change of cathode breaks the active materials and cathode‐electrolyte interphase (CEI), resulting in electrolyte penetration into broken active materials and continuous side reactions between cathode and electrolytes. Herein, a robust LiF‐rich CEI was formed by potentiostatic reduction of fluorinated electrolyte at a low potential of 1.7 V. By taking LiCoO2 as a model cathode, we demonstrate that the LiF‐rich CEI maintains the structural integrity and suppresses electrolyte penetration at a high cut‐off potential of 4.6 V. The LiCoO2 with LiF‐rich CEI exhibited a capacity of 198 mAh g−1 at 0.5C and an enhanced capacity retention of 63.5 % over 400 cycles as compared to the LiF‐free LiCoO2 with only 17.4 % of capacity retention.
Salvage parenteral antibiotics for multidrug‐resistant (MDR) Gram‐negative bacteria; a fluorescamine‐based technique for ultrasensitive spectrofluorimetric measurement of Polymyxins; human plasma application
Authors: Badr El‐Din Khalid M. , Abdelmajed Mahmoud A. , Omar Mahmoud A. , Attia Tamer Z. 
Published: April 2022

AbstractPolymyxins (PMS), namely Colistin (CS) and polymyxin B (poly B), are antimicrobial drugs that have been recently used to treat multiresistant Gram‐negative bacteria infections and their resurgence, owing to a lack of new antibiotics. A speedy, simple, and ultrasensitive spectrofluorimetric screening of PMS in pharmaceutical formulations and biological fluids was urgently required from this point forwards. A reaction between fluorescamine and the aliphatic amino moiety found in both drugs was performed in a slightly alkaline borate buffer (pH 8.5) resulted in highly fluorescent products measured at λem460 (after λex390.5 nm). Linear calibration curves were constructed over the concentration range 70–1800 ng ml−1and 100 to 1400 ng ml−1, with slope values of 0.273 and 0.286, correlation coefficients of 0.9998 and 0.9997, and determination coefficient of 0.9997 and 0.9994 for poly B and CS, respectively. The ultrasensitivity of the proposed method was demonstrated by the very low limit of quantification values of 67.56 ng ml−1and 94.89 ng ml−1for poly B and CS, respectively. The cited drugs were successfully determined in their intravenous market preparations by the prescribed method. Moreover, due to the high sensitivity, the suggested method was used to assay the investigated drugs in biological fluids.
Grass pea (Lathyrus sativus L.) protein yield and functionality as affected by extraction method: Alkaline, ultrasound‐assisted, and ultrasound pretreatment extraction
Authors: Youshanlouei Yeganeh Azimi , Kiani Hossein , Mousavi Mohammad , Mousavi Zeinab E. 
Published: April 2022

AbstractBackground and ObjectivesPlant protein products are now considered sustainable substitutes for animal proteins in new product formulations, and various methods such as ultrasound have been used to improve their properties. The aim of this study was to investigate the physicochemical and functional properties of grass pea (Lathyrus sativus L.) protein isolate was extracted, as a promising source of plant‐based protein, using conventional (CP), pre‐ultrasonic (PUP) and ultrasound‐assisted (UAP) treatments.FindingsExtraction yield, protein content, and protein yield of ultrasound treatments were increased. Ultrasound treatments improved the functional properties of pea protein. Thermal and surface properties were also altered due to the conformational changes in protein molecules during sonication. According to sodium dodecyl sulfate‐polyacrylamide gel electrophoresis, there were no differences in protein fractions of different samples in terms of molecular weight, and protein fractions between 23 and 100 kDa were observed. However, Fourier transform infrared spectroscopy results revealed changes in different treatments suggesting that sonication changed protein secondary structures. Correspondingly, optical and fluorescence microscopy images of protein solutions and foams revealed changes in the structure of proteins and CP presented larger protein aggregates and larger foam bubble sizes than PUP and UAP.ConclusionsUltrasound treatment could increase extraction and improve the functionality of proteins which was attributed to changes in the secondary structure of proteins.Significance and NoveltyGrass pea protein isolate can be considered a novel source of valuable protein and ultrasound treatment could enhance the functionality of the protein increasing potential applications of this ingredient in the food industry.
Supported RuxIr1‐xO2 Mixed Oxides Catalysts for Propane Combustion: Resistance Against Water Poisoning
Authors: Wang Zheng , Wang Wei , Khalid Omeir , Weber Tim , Spriewald Luciano Alexander , Zhan Wangcheng , Smarsly Bernd M. , Over Herbert 
Published: April 2022

AbstractMixed oxide catalysts RuxIr1‐xO2 with varying composition x (x=0, 0.25, 0.5, 0.75, 1.0) supported on CeO2, γ‐Al2O3 or ZrO2 are successfully prepared and tested in the catalytic propane combustion in terms of activity and stability. Pure IrO2 reveals a significantly lower activity than RuxIr1‐xO2 with x≥0.25. For low conversion, pure RuO2 on CeO2 turns out to be the most active catalyst, while at higher conversion, Ru0.75Ir0.25O2 on ZrO2 is found to be more active than RuO2, pointing towards synergism of Ru and Ir sites. Long‐term stability and also the resistance against water poisoning are highest for ZrO2‐supported catalysts. The higher the Ir concentration in the active component RuxIr1‐xO2 the more susceptible is the catalyst to water poisoning. Water poisoning is shown to be reversible, consistent with a blocking of catalytically active sites by water adsorption.
Klimaschonende Technologien
Authors: Wöhrle D. 
Published: April 2022

ZusammenfassungKlimabelastende CO2‐Quellen sind Kraftwerke für elektrische und thermische Energie sowie Industrieprozesse wie Synthesegas und Folgeprodukte. Welche Alternativen gibt es? Auf der einen Seite Strom aus erneuerbaren Energien und weiter H2, der durch Elektrolyse von H2O erzeugt und energetisch sowie als Rohstoff verwendet wird. Auf der anderen Seite CO2 abgeschieden aus der Atmosphäre oder industriellen Emissionen, der als Rohstoff für Synthesen eingesetzt werden kann. H2, CO2 und CO sind die Edukte im sehr bedeutenden Synthesegas, welches nach bekannten Verfahren zu unterschiedlichsten Chemikalien umgesetzt wird. Alle Verfahren sind bereits in Pilotanlagen erprobt. Ziel ist es, eine nachhaltige Kreislaufwirtschaft mit negativen Emissionstechnologien zu erreichen.
Green Phosphorescent Zn(II) Halide Complexes with N,N,N′,N′‐tetramethyl‐P‐indol‐1‐ylphosphonic Diamide as Ligand
Authors: Ferraro Valentina , Baggio Filippo , Castro Jesús , Bortoluzzi Marco 
Published: April 2022

AbstractTetrahedral Zn(II) complexes having general formula [ZnX2{O=P(NMe2)2Ind}2] (X=Cl, Br, I, NCS) were isolated from the reaction between the indol‐1‐yl substituted phosphoramide N,N,N′,N′‐tetramethyl‐P‐indol‐1‐ylphosphonic diamide O=P(NMe2)2Ind and anhydrous Zn(II) precursors under mild conditions. The structures of the three halide derivatives were ascertained by single‐crystal X‐ray diffraction. The bromo‐ and iodo‐derivatives revealed to be appreciably luminescent in the green region upon excitation with light below 300 nm, with emission bands centred between 520 and 530 nm. The large Stokes shifts and the excited state lifetimes in the milliseconds range indicated that triplet excited states are involved in the emission. TD‐DFT calculations indicated that the luminescence is related to a ligand‐centred transition with the involvement of triplet states.
Determination of methanol concentration for DMFC systems by fuel cell‐based sensor
Authors: Celik Selahattin , Cuhadar Nurullah , Yagiz Mikail 
Published: April 2022

AbstractDirect methanol fuel cells are devices that convert the chemical energy of methanol fuel having high energy density directly into electrical energy by electrochemical reactions. Methanol must be supplied to the fuel cell system as an aqueous solution to complete the reaction. Therefore, controlling and adjusting of methanol ratio in the methanol‐water mixture is critical for the continuity of direct methanol fuel cell performance. In this study, two fuel cell‐based electrochemical sensors are developed to adjust the amount of methanol in an aqueous solution in a direct methanol fuel cell. The experimental setup is prepared for the developed sensors and the effects of parameters, such as temperature, methanol flow rate, oxidizing effect, and methanol concentration, affecting the sensor performance are observed experimentally. It is observed that the experimental results obtained in the design without air input are more stable than that of the sensor working with air. However, in air‐independent design, the measurement value lost its stability after 2M concentration. The change in methanol flow rate did not cause any change in either sensor. High temperature and low methanol concentrations are found to be the main criteria for the best sensor performance.
Stable isotopes of surface water and groundwater in a typical subtropical basin in south‐central China: Insights into the young water fraction and its seasonal origin
Authors: Xiao Xiong , Zhang Xinping , Wu Huawu , Zhang Cicheng , Han Longfei 
Published: April 2022

AbstractThe young water fraction (Fyw) can be reliably determined in heterogeneous river basins, and the seasonal origin index (SOI) can be used to determine the relative contributions of winter versus summer precipitation to runoff. Fywand SOI are also important descriptors of how a basin controls runoff generation and the transport of contaminants and nutrients. In this study, high‐frequency sampling of precipitation, river water, creek water, and shallow groundwater was conducted in the Xiangjiang River basin, in south‐central China, from January 2010 to December 2012. The samples were subjected to stable isotope measurements to determine the SOI and Fywof surface water and shallow groundwater. The principal findings are: (1) The δ2H variations of the river water, creek water, and shallow groundwater were driven by the input of precipitation but were attenuated during runoff confluence processes. Also, the low lc‐excess values of the river water indicated a strong evaporative effect. (2) 21.4% and 19.7% of the river water and shallow groundwater were younger than 1.5 and 1.7 months, respectively, indicating a quicker renewal cycle than for the creek water, which had a fraction of 8.0% younger than 2.6 months, which originated from the adjacent mountains. (3) Winter precipitation was more prevalent in the river water and creek water, indicating the substantial inter‐seasonal carryover of precipitation that supplied the runoff. The average SOI value of the shallow groundwater was near zero, indicating the mixing of the precipitation in different seasons that supplies the shallow groundwater. Our findings emphasize the importance of vegetation and soil conservation in maintaining the inter‐seasonal carryover of water storage held by soil, plants, and rock fractures, and the necessity to assess the risks of streamflow contamination because of the rapid renewal cycle of river water in this flat and intensively cultivated landscape.
The influence of mindset abstraction on preference for mixed versus extreme approaches to multigoal pursuits
Authors: Lu Fang‐Chi , Park Jooyoung , Nayakankuppam Dhananjay 
Published: April 2022

AbstractFacing multiple conflicting goals, consumers may attempt to simultaneously pursue multiple goals by choosing mixed vice–virtue bundles in each consumption episode (mixed approach). Alternatively, they may maximize their pursuit of one goal at a time and sequentially manage multiple goals by alternating between pure‐virtue and pure‐vice bundles across consumption episodes (extreme approach). The current research proposes that consumer preferences between the two approaches depend on mindset abstraction. Across four experimental studies in the domains of food and financial decision‐making, we demonstrate that, relative to an abstract mindset, a concrete mindset increases preference for the extreme approach over the mixed approach. Furthermore, by observing actual food choices over a seven‐day period, this research provides a comprehensive picture of how a chronic mindset relates to multigoal management in long‐term consumption patterns. The findings have both theoretical implications for the goal literature and managerial implications for marketers and policymakers.
The Utility of CTA in Pediatric Oropharyngeal Trauma: A Systematic Review and Meta‐Analysis
Authors: Poupore Nicolas S. , Jungbauer W Nicholas , Nguyen Shaun A. , White David R. , Pecha Phayvanh P. , Carroll William W. 
Published: April 2022

Objective(s)To analyze the utility of computed tomography angiography (CTA) in identifying internal carotid artery (ICA) injury and reducing cerebrovascular accident (CVA) incidence in children presenting with normal neurologic exams after oropharyngeal trauma (OT).Data SourcesPubMed, Scopus, CINAHL, and Cochrane.Review MethodsA systematic review and meta‐analysis were performed following PRISMA guidelines. Of 1,185 studies screened, 95 studies of pediatric OT met inclusion criteria. Meta‐analysis of proportions was performed.ResultsA total of 1224 children with OT were analyzed. Excluding case reports, the weighted proportion of a CVA after OT was 0.31% (95% CI 0.06–0.93). If a child presented without neurologic deficits, 0.30% (95% CI 0.05–0.95) returned with new neurologic deficits. An ICA injury was identified in 0.89% (95% CI 0.16–2.74) of screening CTAs. No difference in CVA incidence was seen in children with screening CTA (0.52% [95% CI 0.02–2.15]) compared to children without screening CTA (0.42% [95% CI 0.06–1.37]). Patients who developed CVA had a higher proportion of injuries >2 cm, injuries at the posterior pillar or tonsil, and injuries with a writing utensil or popsicle stick compared to patients without CVA.ConclusionThe proportion of children experiencing an ICA injury leading to CVA after sustaining OT is low. CTAs infrequently show ICA changes in children with normal neurological exams. Children who receive CTAs do not have a significantly lower incidence of CVAs than children who do not receive CTAs. Clinicians should weigh the risks and benefits of a CTA based on an individual child's presentation and discuss this with caregivers for shared decision‐making. Laryngoscope, 133:25–37, 2023
Simultaneous Surface Display and Holography Enabled by Flat Liquid Crystal Elements
Authors: Tang Dongliang , Shao Zhenglong , Zhou Yingjie , Lei Yu , Chen Long , Xie Jin , Zhang Xiaohu , Xie Xin , Fan Fan , Liao Lei , Wen Shuangchun 
Published: April 2022

AbstractAs a fundamental material in the current mainstream display technology, liquid crystal (LC) exhibits excellent properties including controllable and reconfigurable LC orientation, high‐efficiency pure‐phase modulation, active tunability, etc., and becomes one of the most attractive candidates for the development of next‐generation flat optical devices. Current LC elements are suffering from the single functionality as only one type of the optical manipulation is involved. Integrating several functions together brings great flexibility and high integration but remains an urgent task. Here, flat LC elements are proposed to simultaneously accomplish near‐field display and far‐field holography. The anisotropic nature of the LC allows a complex amplitude modulation with a sinusoidal variation, promising a continuous amplitude change, and a binary phase modulation. Specifically, several two‐channel LC elements are experimentally demonstrated, which simultaneously generate a grayscale pattern at sample surface and project an independent holographic image in the far field. Furthermore, the position and spatial multiplexing methodologies are introduced to further improve the information capacity. The proposed LC elements with simple anisotropic structure and large fabrication size can empower the multifunctional design and have promising prospects in information multiplexing, image displaying, data storage, etc.
RAFT Polymerization of Semifluorinated Monomers Mediated by a NIR Fluorinated Photocatalyst
Authors: Ma Qiankun , Wang Wulong , Zhang Liangshun , Cao Hongliang 
Published: April 2022

AbstractNear‐infrared (NIR) light plays an increasingly important role in the field of photoinduced electron/energy transfer‐reversible addition–fragmentation chain transfer (PET‐RAFT) polymerization due to its unique properties. Yet, the NIR photocatalyst with good stability for PET‐RAFT polymerization remains promising. Here, a strategy of NIR PET‐RAFT polymerization of semifluorinated monomers using fluorophenyl bacteriochlorin as a photocatalyst with strong absorption at the NIR light region (710–780 nm) is reported. In which, the F atoms are used to modify reduced tetraphenylporphyrin structure with enhanced photostability of photocatalyst. Under the irradiation of NIR light (λmax = 740 nm), the PET‐RAFT polymerization of semifluorinated methylacrylic monomers presents living/control characteristics and temporal modulation. By the PET‐RAFT polymerization‐induced self‐assembly (PISA) strategy, stable fluorine‐containing micelles are constructed in various solvents. In addition, the fluorinated hydrophobic surface is fabricated via a surface‐initiated PET‐RAFT (SI‐PET‐RAFT) polymerization using silicon wafer bearing RAFT agents with tunable surface hydrophobicity. This strategy not only enlightens the application of further modified compounds based on porphyrin structure in photopolymerization, but also shows promising potential for the construction of well‐defined functional fluoropolymers.