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Extraction of Metal(Ti,V,Mo)-oxyl Cations by Monoacidic phosphates and Phosphonates

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Rare Metals 1993年第2期12卷 142-147页

作者：傅洵傅有君牛增元胡正水辛惠蓁张雅萍 Qingdao Institute of Chemical Technology Qingdao 266042China

The extraction of TiO2+, VO2+, VO2+ and NoO22+ by HDEHP, HEHEHP and HDTMPP was studied respectively. The orders of extraction ability for the three extractant systems are as follows: for TiO2+, VO2+: HDEHP>HEHEHP>HDTM... 详细信息

关键词： Extraction Molybdenum phosphates Titanium Vanadium

Elucidation of the sodiation/desodiation mechanism in Ca_(0.5)Ti_(2)(PO_(4))_(3)/C as promising electrode for sodium batteries: New insights into the phase transitions

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Journal of Energy Chemistry 2022年第7期31卷 36-44,I0002页

作者： Abdelhaq Nassiri Noha Sabi Angelina Sarapulova Yingjin Wei Bouchaib Manoun Sylvio Indris Alexandr Missyul Helmut Ehrenberg Ismael Saadoune IMED-Lab Faculty of Science and Technology-Cadi Ayyad University(UCA)Av.A.El KhattabiP.B.549MarrakeshMorocco Institute for Applied Materials(IAM) Karlsruhe Institute of Technology(KIT)P.O.Box 364076021 KarlsruheGermany Key Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education) Jilin Engineering Laboratory of New Energy Materials and TechnologyCollege of PhysicsJilin UniversityChangchun 130012JilinChina MSN Mohamed VI Polytechnic UniversityLot 660Hay Moulay RachidBen Guerir 43150Morocco CELLS-ALBA Synchrotron E-08290 Cerdanyola del VallesBarcelonaSpain Technology Development Cell(Techcell) Technology Transfer Office(TTO)Mohamed VI Polytechnic UniversityLot 660Hay Moulay RachidBen Guerir 43150Morocco

The structure evolution and electrochemical performance of Na SICON-type Ca_(0.5)Ti_(2)(PO_(4))_(3) for sodium batteries are presented.This phosphate was synthesized by a solid-state method,and the obtained particles were coated with carbon using sucrose.This compound crystallizes in the rhombohedral system with space group R-3.The presence of carbon in the Ca_(0.5)Ti_(2)(PO_(4))_(3)/C composite was confirmed by Raman and Thermogravimetric analysis.The electrochemical performance of Ca_(0.5)Ti_(2)(PO_(4))_(3)/C was investigated in the potential window 1.5–3.0 V vs.sodium metal at different scan rates.The compound is able to initially intercalate/deintercalate 1.6/1.15 Na per formula unit,respectively.In operando synchrotron diffraction was done in the potential window 0.02–3.0 V vs.Na|Na+and revealed the occurrence of several reaction regions upon first discharge.Up to 4 Na+ion per formula unit can be inserted during the first discharge.An intensive refinement of the synchrotron X-ray diffraction(SXRD)patterns of discharged Ca_(0.5)Ti_(2)(PO_(4))_(3) evidenced the existence of five regions depending on the sodium content while the crystal structures of new phases were elucidated for the first time where sodium insertion occurs in the unusual M3 and M’3 sites of the Na SICON structure.

关键词： Sodium-ion batteries phosphates Synchrotron Mechanism Energy storage

Advances in solid Mg-ion electrolytes for solid-state Mg batteries

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Journal of Materials Science & Technology 2023年第30期161卷 136-149页

作者： Yuepeng Pang Yu Zhu Fang Fang Dalin Sun Shiyou Zheng School of Materials and Chemistry University of Shanghai for Science and TechnologyShanghai 200093China Department of Materials Science Fudan UniversityShanghai 200433China

Rechargeable Mg batteries have attracted much attention in the past decade due to their high theoretical energy density and low production cost,in which the electrolyte is the key component that determines the overall performance.Applying solid Mg-ion electrolytes brings many benefits to rechargeable Mg bat-teries,which can improve safety under aggressive conditions and open opportunities for new electrode applications.After extensive investigations,researchers make major breakthroughs in the solid Mg-ion electrolyte field,especially in terms of Mg-ion conductivities.However,the development of solid-state Mg batteries is still at the early stage since their stable cycling has not been achieved yet.In this review,we introduce the Mg-ion conducting properties of current solid Mg-ion electrolytes,and then summarize the performances of corresponding solid-state Mg batteries.In addition,we provide a discussion on the application potentials and future directions of each type of solid Mg-ion electrolytes that are applied in solid-state Mg batteries.

关键词： Solid Mg-ion electrolytes Solid-state Mg batteries phosphates Borohydrides Chalcogenides Metal-organic frameworks Polymers

A high-concentrated and nonflammable electrolyte for potassium ion-based dual-graphite batteries

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Nano Research 2023年第5期16卷 6353-6360页

作者： Kexin Li Guiyou Ma Dandan Yu Wen Luo Jiaxin Li Laishun Qin Yuexiang Huang Da Chen College of Materials and Chemistry China Jiliang UniversityHangzhou 310018China Liangxin College China Jiliang UniversityHangzhou 310018China

Potassium ion-based dual-graphite batteries(KDGBs)emerge as promising devices for large-scale applications due to their high voltage,low cost,environmental friendliness.However,conventional KPF6/carbonate-based electrolytes suffer from severe oxidation decomposition,low concentration,flammability,which limit the capacity and cyclability of KDGBs.Herein,a nonflammable potassium bis(fluorosulfonyl)imide/triethyl phosphate(KFSI/TEP)electrolyte was designed for KDGBs.When the salt-to-solvent molar ratio increases to 1:1.3,graphite cathode operated at the cut-off potential of 5.2 V exhibits much enhanced capacity,excellent rate capability(26.4 mAh∙g^(−1) at 1.0 A∙g^(−1)),superior cyclability with 98%capacity retention after 350 cycles.Inorganic compounds-rich electrode/electrolyte interphase layers derived from the preferential decomposition of FSI−anions ensure good compatibility of the 1:1.3 KFSI/TEP electrolyte with K metal and graphite anodes.Based on this electrolyte,asassembled KDGBs show high operation voltage of 4.3 V and good cycling performance.This work provides feasibility for developing long-life and safe-operation DGBs.

关键词： dual-ion batteries graphite high voltage high-concentrated electrolytes phosphates

Outcomes of patients with post-hepatectomy hypophosphatemia:A narrative review

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World Journal of Hepatology 2022年第8期14卷 1550-1561页

作者： Kai Siang Chan Swetha Mohan Vishal G Shelat Department of General Surgery Tan Tock Seng HospitalSingapore 308433Singapore Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore

Phosphate is an essential electrolyte for proper mineralisation of bone,buffering of urine,and diverse cellular actions.Hypophosphatemia(HP)is a clinical spectrum which range from asymptomatic to severe complications such as neuromuscular and pulmonary complications,or even death.Post-hepatectomy HP(PHH)has been reported to be 55.5%-100%.Post-hepatectomy,there is rapid uptake of phosphate and increased mitotic counts to aid in regeneration of residual liver.Concurrently,PHH may be due to increased urinary phosphorous from activation of matrix extracellular phosphoglycoprotein in the injured liver,which decreases phosphate influx into hepatocytes to sustain adenosine triphosphate synthesis.A literature review was performed on Pub Med till January 2022.We included 8 studies which reported on impact of PHH on post-operative outcomes.In patients with diseased liver,PHH was reported to have either beneficial or deleterious effects on post-hepatectomy liver failure(PHLF),morbidity and/or mortality in various cohorts.In living donor hepatectomy,PHLF was higher in PHH.Benefits of correction of PHH with reduced postoperative complications have been shown.Correction of PHH should be done based on extent of PHH.Existing studies were however heterogenous;further studies should be conducted to assess PHH on post-operative outcomes with standardized phosphate replacement regimes.

关键词： Hepatectomy Hepatocellular Carcinoma Hypophosphatemia phosphates Liver neoplasms Liver transplantation

Deep-ultraviolet nonlinear-optical crystal BaNa_(2)[PO_(3)(OH)]_(2) with large birefringence and strong second-harmonic-generation response

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Chinese Journal of Structural Chemistry 2023年第1期42卷 9-14页

作者： Yuanyu Yang Yao Guo Yi-Gang Chen Chengbo Li Xian-Ming Zhang Key Laboratory of Magnetic Molecules and Magnetic Information of Ministry of Education School of Chemistry and Material ScienceShanxi Normal UniversityTaiyuan030006China Henan Joint International Research Laboratory of Nanocomposite Sensing Materials School of Materials Science and EngineeringAnyang Institute of TechnologyAnyang455000China College of Chemistry&Chemical Engineering Key Laboratory of Interface Science and Engineering in Advanced MaterialMinistry of EducationTaiyuan University of TechnologyYingze WestTaiyuan030024China

Deep-ultraviolet(DUV,λ<200 nm)nonlinear-optical(NLO)crystals play a pivotal role in modern laser science and technology.Metal phosphates have been considered as fascinating candidates for DUV NLO crystal material.How... 详细信息

Deep-ultraviolet(DUV,λphosphates have been considered as fascinating candidates for DUV NLO crystal material.However,how to generate both strong second-harmonic-generation(SHG)response and large birefringence for promising DUV NLO metal phosphates is a long-standing issue.Herein,a new DUV NLO metal phosphate,BaNa_(2)[PO_(3)(OH)]_(2),was successfully synthesized,which features a two-dimensional[NaPO_(3)(OH)]_(∞)alveolate layer alternately connected by highly asymmetric[PO_(3)(OH)]groups and NaO5 triangular bipyramids.BaNa_(2)[PO_(3)(OH)]_(2)can realize a good balance of DUV nonlinear properties covering short UV absorption edge less than 190 nm,strong SHG response with the magnitude of~1.2×benchmark KH_(2)PO_(4)(KDP),and the largest birefringence with the experimental value of 0.064@590±3 nm in reported alkaline/alkaline-earth metal phosphates,producing the shortest phase-matching output down to the wavelength of 164 nm.These research results show that BaNa_(2)[PO_(3)(OH)]_(2)crystal is a potential DUV NLO crystal material.

关键词： Nonlinear-optical Birefringence Structure phosphates Optical properties

Preparation of Titanium phosphates with Sodium Triphosphate in Hydrothermal Process and Their Powder Properties for Cosmetics

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Advances in Materials Physics and Chemistry 2013年第1期3卷 1-6页

作者： Hiroaki Onoda Taisuke Yamaguchi Department of Informatics and Environmental Sciences Kyoto Prefectural University Kyoto Japan

As a white pigment, titanium oxide is used for cosmetic application. This oxide is well known to have the photo catalytic activity. Therefore, a certain degree of sebum on the skin is decomposed by the ultraviolet radiation in sunlight. In this work, titanium phosphates were prepared with titanium chloride and sodium triphosphate in hydrothermal process as a novel white pigment. Their chemical composition, powder properties, photo catalytic activity, color phase, and smoothness were studied. The obtained phosphates had little photo catalytic activity. The particle size of phosphate pigments consisted a normal distribution at 2 μm by the hydrothermal treatment for 4 and 8 hours. The slipping resistance of samples became small by the hydrothermal treatment.

关键词： Titanium phosphates Condensed Phosphate Hydrothermal Process Photo Catalytic Activity Smoothness

Influence of pH and Ultrasonic Treatment on Preparation of Titanium phosphates and Their Powder Properties

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Journal of Materials Science and Chemical Engineering 2014年第5期2卷 27-34页

作者： Hiroaki Onoda Syohei Fujikado Department of Informatics and Environmental Sciences Kyoto Prefectural University Kyoto Japan

Titanium oxide that has the photocatalytic activity is used as the white pigment for cosmetics. A certain degree of sebum on the skin is decomposed by the ultraviolet radiation in sunlight. In this work, as a novel white pigment, titanium phosphates were prepared from titanium sulfate and phosphoric acid at pH 5, 7, and 9, with/without ultrasonic treatment for cosmetics. Their chemical composition, powder properties, photocatalytic activity, color phase, moisture retention, and smoothness were studied. These titanium phosphates had less photocatalytic activity to protect the sebum on the skin. Sample prepared at pH 7 without ultrasonic treatment had higher moisture retention than other samples. All samples obtained in this work had the suitable smoothness for cosmetics.

关键词： White Pigment Titanium phosphates Photocatalytic Activity Smoothness

A Mild and Efficient Method for the Synthesis of Acylals from Aromatic Aldehydes and Their Deprotections Catalyzed by Synthetic phosphates under Solvent-Free Conditions

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Green and Sustainable Chemistry 2018年第4期8卷 334-344页

作者： Fathallaah Bazi Bahija Mounir Mohammed Hamza Said Sebti Laboratoire de Chimie Analytique et physicochimie des Matériaux Université Hassan II Faculté des Sciences Ben M’Sik Casablanca Morocco Laboratoire Matériaux Substances Naturelles Environnement & Modélisation (LMSNEM) Université Sidi Mohamed Ben Abdellah Fes Faculté Polydisciplinaire Taza Morocco Laboratoire de Chimie Physique Catalyse et Environnement Université Hassan II Faculté des Sciences Ben M’Sik Casablanca Morocco

An efficient and clean preparation of acylals from aromatic aldehydes in the presence of synthetic phosphates (flourapatite and hydroxyapatite doped with ZnCl2 and ZnBr2) and acetic anhydride was achieved easily in high yields (86% - 97%) at room temperature under solvent-free conditions. Deprotection of the resulting acylals has also been attained by using the same catalysts under microwave irradiation. This method consistently has advantage of excellent yields (82% - 96%) and a short reaction time (3 - 4 min).

关键词： Synthetic phosphates Clean Process Acylals Protection Deprotection