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Investigation of the sodium storage mechanism of iron fluoride hydrate cathodes using X-ray absorption spectroscopy and mossbauer spectroscopy

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Journal of Energy Chemistry 2023年第2期77卷 535-542,I0014页

作者： Ghulam Ali Muhammad Akbar Faiza Jan Iftikhar Qamar Wali beata kalska szostko Dariusz Satuła Kyung Yoon Chung Energy Storage Research Center Korea Institute of Science and TechnologyHwarang-ro 14 gil 5Seongbuk-guSeoul 02792South Korea USPCAS-E National University of Sciences and Technology(NUST)H-12Islamabad 44000Pakistan Division of Energy&Environment Technology KIST SchoolKorea University of Science and Technology(UST)Hwarang-ro 14-gil-5Seongbuk-guSeoul 02792South Korea NUTECH School of Applied Sciences and Humanities National University of TechnologyIslamabad 44000Pakistan University of Białystok Faculty of ChemistryCiołkowskiego 1K15-424 BiałystokPoland University of Białystok Faculty of PhysicsCiołkowskiego 1L15-424 BiałystokPoland

Elucidation of a reaction mechanism is the most critical aspect for designing electrodes for highperformance secondary ***,we investigate the sodium insertion/extraction into an iron fluoride hydrate(FeF_(3)·0.5H_(2)O)electrode for sodium-ion batteries(SIBs).The electrode material is prepared by employing an ionic liquid 1-butyl-3-methylimidazolium-tetrafluoroborate,which serves as a reaction medium and precursor for F^(-)*** crystal structure of FeF_(3)·0.5H_(2)O is observed as pyrochlore type with large open 3-D tunnels and a unit cell volume of 1129A^(3).The morphology of FeF_(3)·0.5H_(2)O is spherical shape with a mesoporous *** microstructure analysis reveals primary particle size of around 10 *** FeF_(3)·0.5H_(2)O cathode exhibits stable discharge capacities of 158,210,and 284 mA h g^(-1) in three different potential ranges of 1.5-4.5,1.2-4.5,and 1.0-4.5 V,respectively at 0.05 C *** specific capacities remained stable in over 50 cycles in all three potential ranges,while the rate capability was best in the potential range of 1.5-4.5 *** electrochemical sodium storage mechanism is studied using X-ray absorption spectroscopy,indicating higher conversion at a more discharged ***-situ M?ssbauer spectroscopy strengthens the results for reversible reduction/oxidation of *** results will be favorable to establish high-performance cathode materials with selective voltage window for SIBs.

关键词： Iron fluoride Sodium-ion batteries Pyrochlore X-ray absorption spectroscopy Mössbauer spectroscopy

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Carbon coating of air-sensitive insulating transition metal fluorides:An example study on α-Li3FeF6 high-performance cathode for lithium ion batteries

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Journal of Materials Science & Technology 2020年第20期52卷 107-115页

作者： Anna Basa Sławomir Wojtulewski beata kalska-szostko Maciej Perkowski Elena Gonzalo Olga Chernyayeva Alois Kuhn Flaviano García-Alvarado Institute of Chemistry University of Bialystokul.K.Ciolkowskiego 1K15-245 BialystokPoland Departamento de Química y Bioquímica Facultad de FarmaciaUniversidad CEU San Pablo28668 Boadilla del MonteMadridSpain Polish Institute of Physical Chemistry Kasprzaka St.44/5201-224 WarsawPoland CIC Energigune Parque Tecnologico de Alava01510 MinanoAlavaSpain

Li_(3)FeF_(6)has been the focus of research of fluorine-based cathode materials for lithium-ion *** of the low electronic conductivity of Li3 FeF6,the decrease of particle size,by an energyconsuming long-time ball milling process with carbon,is necessary to achieve a high electrochemical *** most successful method to enhance electrochemical activity,carbon coating,seemed to be impracticable,so far,for sensitive fluorides like Li3 *** this work,carbon coating on Li3 FeF6 particles has been successfully achieved for the first time,while avoiding both extended hydrolysis and Fe(Ⅲ)-Fe(Ⅱ)*** heat treatment and atmosphere,yielding the maximal transformation of organic carbon to both graphitised and disordered carbon,has been *** coating,with a thickness of approximately 2.5 nm,has been achieved by controlled thermal decomposition of glucose,under air,at 300℃.Raman and X-ray photoelectron spectroscopy(XPS)experiments have proved the existence of carbon and Fe2O3 on the surface of Li3FeF6 *** spectroscopy indicates the presence of organic residues from glucose *** to further reduce the orga nic carbon content results in a decrease of the amorphous carbon coating *** carbon-coated Li3 FeF6 nanoparticles deliver 122 mA h g^(-1)(85%of theoretical capacity)significantly higher than that of a noncoated sample(58 mA h g^(-1)).Even more,a significant beneficial effect of carbon coating on both capacity retention and coulombic efficiency is observed.

关键词： Lithium iron fluoride Hydrolysable fluoride Lithium battery Cathode Carbon coating

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Spring Inserts for the Intensification of the Heat Exchange Process during Boiling in Vertical Tubes--Optimization of Geometric Parameters

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Journal of Thermal Science 2018年第5期27卷 440-448页

作者： NIEZGODA-ZELASKO beata Faculty of Mechanical Engineering Institute of Thermal and Process Engineering Cracow University of Technology31-864 Cracow Poland

The paper presents new criteria for calculation of heat transfer coefficients and flow resistance during boiling inside vertical tubes with spring inserts, developed on the basis of own experimental research. Calculations of the geometric parameters of the spring insert were carried out using the Nelder-Mead optimization method for various optimization criteria(maximizing the increase ratios for heat transfer coefficient and flow resistance, minimizing entropy, own optimization criterion). The results of optimization calculations were verified by the optimization procedures available in Statistica.

关键词： boiling heat transfer flow resistance spring inserts optimization

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Taxonomic revision of the Calamagrostis epigeios complex with particular reference to China

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Journal of Systematics and Evolution 2011年第5期49卷 495-504页

作者： beata PASZKO Haiying MA Wadysaw Szafer Institute of Botany Polish Academy of Sciences School of Life Sciences Yunnan University

Principal component analysis of specimen measurements revealed morphological variation within Chinese Calamagrostis epigeios correlated with differences in geographical *** conducted a morphological examination of specimens from the range of the species,with the goal of developing a treatment for its Chinese members reflecting the global diversity *** confusing taxonomy of this complex is clarified with the recognition of three species in China,namely ***,***,and *** epigeios is an exclusively temperate grass occurring in the northwestern,northern,and northeastern parts of *** has spikelets 4-7 mm long,glumes equal or subequal,awn arising near the middle of the lemma back,upper leaf surface smooth and with shallow ribs and *** extremiorientalis is a tropical and subtropical grass that occurs in the southwest provinces of China(except Xizang) throughout south central provinces and east to the northeastern parts of *** is morphologically similar to ***,*** has the awn arising from the upper one-third of the lemma back,upper leaf surface scabrid because of the presence of short stiff hairs,and with tall ribs and deep *** macrolepis occurs in the northwestern,northern,and northeastern parts of *** has a robust habit,spikelets 6.5-11 mm long,and glumes unequal,the upper 1-1.5 mm shorter than the *** synonyms,descriptions,and citations of representative specimens are provided for each species,along with an identification key.

关键词： Calamagrostis extremiorientalis Calamagrostis macrolepis Calamagrostis epigeios China new synonym Poaceae taxonomy.

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Modeling of Thermal Properties of Thermal Insulation Layered with Transparent,Opaque and Reflective Film

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Journal of Thermal Science 2018年第5期27卷 463-469页

作者： GRABOWSKA beata KASPERSKI Jacek Faculty of Mechanical and Power Engineering Wroclaw University of Science and TechnologyWroclaw 50-370 Poland

The popular and effective food preservation technology based on refrigeration is not sufficient for high-quality products while undergoing logistic operations(transport and retail). One of the basic factors that affects the quality of chilled and frozen food products during storage and transport is packaging. A protective function of packaging strongly depends on the material used and its composition. There are different kinds of thermal insulation used for food packaging. One of them, proposed by the authors is a multilayer structure of insulation made of rectangular air cells. The insulation can be prepared by means of plastic film featuring various properties. The paper presents how to improve an effective material designed for food freezing and transport aiming to enhance its thermal resistance through the application of different transparency, reflectivity and emissivity of the film. Mathematical model based on heat exchange equations, including conduction, convection and radiation throughout a number of parallel internal sheets of film of multilayer structures was proposed. Thermal properties depending on different transparency, reflectivity and emissivity of the film were analyzed. The model was verified experimentally showing its compatibility and obtaining a significant influence of thermal resistance according to the type of film used to make air structures, the number and thickness of its layers as well as the gaps between internal folds. For multi-layer insulation designed for the insulation of packed frozen food in the shape of a rectangle, it was recommended to apply film transmittance as small as possible for the internal parts of the structure.

关键词： frozen food heat transfer transparency reflectance thermal isolation food package

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Computer simulation of the coagulation of suspended solids——The applicability of the Müller–Smoluchowski theory

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Journal of Environmental Sciences 2016年第6期28卷 197-203页

作者： Regina Wardzynska beata Zaleska-Chróst Department of Chemistry University of Warmia and Mazury in Olsztyn

The results of studies carried out using a computer programme simulating the coagulation of suspensions containing spherical sol particles and spherical coagulant particles are *** influence of the degree of dispersion of the system on the coagulation reaction kinetics was investigated. The obtained results of kinetic studies were tested in the light of classical Müller–Smoluchowski equations. The influence of the physical properties of the coagulant,such as size, density and mass, on the coagulation rate was tested. It was found that within the range described in this paper, the rate of the simulated coagulation process fulfils both the kinetic equation of a first-order reaction, and the kinetic equation of a second-order *** the tested range, a significant influence of the mass and size of the coagulant on the coagulation rate was ascertained. The kinetic Müller–Smoluchowski dependence is fulfilled in a broader range of the degree of dispersion, when the coagulant particle mass and the sol particle mass are equal. When the particle mass increases with an increase in the particle radius, the coagulation rate increases faster that it would result from the Müller＇s dependence.

关键词： Aggregation Computer simulation Coagulation rate Sol

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Hepatectomy for bile duct injuries: When is it necessary?

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World Journal of Gastroenterology 2013年第38期19卷 6348-6352页

作者： beata Jablońska Department of Digestive Tract Surgery University Hospital of the Medical University of Silesia40-752 KatowicePoland

Iatrogenic bile duct injuries(IBDI)are still a challenge for *** most frequently,they are caused by laparoscopic cholecystectomy which is one of the commonest surgical procedure in the *** techniques are recommended as initial treatment of *** endoscopic treatment is not effective,surgery is *** surgical biliary reconstructions are performed in most patients in ***-Y hepaticojejunostomy is the commonest biliary reconstruction for *** some patients with complex IBDI,hepatectomy is ***,Liet al analyzed the factors that had led to hepatectomy for patients with IBDI after laparoscopic cholecystectomy(LC).Authors concluded that hepatectomy might be necessary to manage early or late complications after *** study showed that proximal IBDI(involving hepatic confluence)and IBDI associated with vascular injuries were the two independent risk factors of hepatectomy in this *** distinguished two main groups of patients that require liver resection in IBDI:those with an injury-induced liver necrosis necessitating early intervention,and those in whom liver resection is indicated for treatment of liver atrophy following long-term *** this commentary,indications for hepatectomy in patients with IBDI are *** biliovascular injuries as indications for hepatectomy are ***-and long-term results in patients following liver resection for IBDI are also *** is not a standard procedure in surgical treatment of IBDI,but in some complex injuries it should be considered.

关键词： Hepatectomy Bile duct injury Cholecystectomy Laparoscopic cholecystectomy

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Biliary cysts:Etiology,diagnosis and management

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World Journal of Gastroenterology 2012年第35期18卷 4801-4810页

作者： beata Jabońska Department of Digestive Tract Surgery University Hospital of the Medical University of Silesia

Biliary cysts(BC) are rare dilatations of different parts of a biliary *** account for approximately 1% of all benign biliary *** occur the most frequently in Asian and female *** are an important problem for pediatricians,gastroenterologists,radiologists and *** presentation and management depend on the BC *** is the most serious and dangerous BC *** other complications associated with BC involve cholelithiasis and hepatolithiasis,cholangitis,acute and chronic pancreatitis,portal hypertension,liver fibrosis and secondary liver cirrhosis and spontaneous cyst *** BC classifications have been described in the *** classification dividing BC into five types is the most useful in clinical *** early diagnosis and proper treatment are very important,because BC are associated with a risk of carcinogenesis.A malignancy risk increases with the *** investigations(ultrasonography,computed tomography,endoscopic retrograde cholangiopancreatography and magnetic resonance cholangiopancreatography) play an important role in BC ***,prenatal diagnosis using ultrasonography is *** allows to differentiate biliary disorders in fetals and to perform the early surgical treatment that improves *** most patients,total cyst excision with Roux-Y hepaticojejunostomy is the treatment of *** treat-ment of BC is associated with high success rate and low morbidity and *** early treatment is associated with a lower number of *** following BC surgery require permanent and careful postoperative observation using laboratory and imaging investigations because of possibility of biliary anastomosis stricture and biliary cancer in tissue remnant.

关键词： Biliary cysts Biliary drainage Hepaticojeju-nostomy

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Iatrogenic bile duct injuries:Etiology,diagnosis and management

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World Journal of Gastroenterology 2009年第33期15卷 4097-4104页

作者： beata Jab■ońska Pawe■ Lampe Department of Digestive Tract Surgery University Hospital of the Medical University of Silesia

Iatrogenic bile duct injuries (IBDI) remain an important problem in gastrointestinal surgery. They are most frequently caused by laparoscopic cholecystectomy which is one of the commonest surgical procedures in the world. The early and proper diagnosis of IBDI is very important for surgeons and gastroenterologists, because unrecognized IBDI lead to serious complications such as biliary cirrhosis, hepatic failure and death. Laboratory and radiological investigations play an important role in the diagnosis of biliary injuries. There are many classifications of IBDI. The most popular and simple classification of IBDI is the Bismuth scale. Endoscopic techniques are recommended for initial treatment of IBDI. When endoscopic treatment is not effective, surgical management is considered. Different surgical reconstructions are performed in patients with IBDI. According to the literature, Roux- en-Y hepaticojejunostomy is the most frequent surgical reconstruction and recommended by most authors. In the opinion of some authors, a more physiological and equally effective type of reconstruction is end- to-end ductal anastomosis. Long term results are the most important in the assessment of the effectiveness of IBDI treatment. There are a few classifications for the long term results in patients treated for IBDI; the Terblanche scale, based on clinical biliary symptoms, is regarded as the most useful classification. Proper diagnosis and treatment of IBDI may avoid many serious complications and improve quality of life.

关键词： Iatrogenic disease Biliary drainage Bile ducts Cholecystectomy Roux-en-Y anastomosis Surgical injuries Surgical anastomosis

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Micromorphological features of soils formed on calcium carbonate–rich slope deposits in the Polish Carpathians

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Journal of Mountain Science 2020年第6期17卷 1310-1332页

作者： Joanna beata KOWALSKA Tomasz ZALESKI Ryszard MAZUREK Department of Soil Science and Agrophysics University of AgricultureAl.Mickiewicza 2131-120 KrakowPoland

Seven soil profiles developed on calcium carbonate–rich slope deposits in the Polish Carpathians were studied in order to:i)determine the micromorphological features of heterogeneous soils formed in a carbonate depositional environment,and ii)track primary and secondary calcium carbonate forms and their distribution in such stratified *** cases of soils with different arrangements of calcium carbonate were distinguished,controlled mostly by slope *** instance,the increasing content and random distribution of angular and subangular rock fragments found in the overall soil matrix and the irregular coarse:fine size limit suggested different intensities of accumulation and mixing of soil material transported along the *** processes,together with the calcium carbonate content,mineralogical characteristics and texture influenced the type and arrangement of the bfabric *** calcium carbonate distribution within the soils,besides the obvious inheritance from parent material,was governed by the translocation and mixing of deposits on *** climatic conditions prevailing in the area favour the development of secondary forms of calcium ***,only three of the seven studied profiles contained pedogenic forms of calcium carbonate,yet they were distributed *** occurrence,distribution and preservation of secondary carbonates depended on the content of primary calcium carbonate and soil features such as *** transported material down the slope may indicate a very low content of primary calcium or lack thereof,hence its pedogenic forms could not be created.

关键词： Heterogeneous soils Microfacies Secondary calcium carbonate Pedofeatures Soil profile

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