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Selective lithium recovery from black powder of spent lithiumion batteries via sulfation reaction:phase conversion and impurities influence

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Rare Metals 2023年第7期42卷 2350-2360页

作者： Hao Liu jia-liang Zhang Guo-Qiang liang Meng Wang Yong-Qiang Chen Cheng-Yan Wang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Green Recycling and Extraction of Metals Beijing100083China

The aim of this study is to present a new understanding for the selective lithium recovery from spent lithium-ion batteries(LIBs)via sulfation *** composition of roasting products and reaction behavior of impurity elements were analyzed through thermodynamic ***,the effects of sulfuric acid dosage,roasting temperature,roasting time,and impurity elements were assessed on the leaching efficiency of valuable *** methods such as X-ray diffraction(XRD),scanning electron microscopy-energy dispersive spectroscopy(SEM-EDS),and X-ray photoelectron spectroscopy(XPS)were employed to analyze the phase transformation mechanism during roasting *** results indicate that after sulfation roasting(n(H_(2)SO_(4)):n(Li)=0.5,550℃,2 h),94%lithium can be selectively recovered by water leaching and more than 95%Ni,Co,and Mn can be leached through acid leaching without the addition of reduction *** the sulfation roasting process,the lithium in LiNi_(x)Mn_(y)Co_zO_(2)is mainly converted to Li_(2)SO_(4),while the Ni,Co and Mn are first transformed to sulfate and then converted into oxide *** addition,impurity elements such as Al and F will combine with lithium to form LiF and LiAlO_(2),which will reduce the leaching rate of *** results provide a new understanding on the mechanisms of phase conversion during sulfation roasting and reveal the influence of impurity elements for the lithium recovery from spent LIBs.

关键词： Spent lithium-ion batteries(LIBs) Thermodynamic calculations Sulfation roasting Impurity elements Conversion mechanism

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Enhanced preparation of dendritic metallic vanadium in recyclable NaCl-KCl-VCl_(2) molten salt by V_(2)CO electrolysis

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Rare Metals 2024年第8期43卷 3961-3973页

作者： jia-liang An Ming-Yong Wang Yong-Zheng jia Jin-Tao Zhang Bao-Yan Feng Shu-Qiang jiao State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China College of Material Science and Engineering Hebei Province Laboratory of Inorganic Nonmetallic MaterialsNorth China University of Science and TechnologyTangshan 063210China

A promising method for the preparation of pure metallic vanadium via V_(2)CO anode electrolysis was proposed and *** simple and controllable synthesis of a molten chloride salt containing VCl_(2) by an insitu reaction between VCl_(3) and metallic vanadium was verified through thermodynamic analysis and ***-KCl-VCl_(2) molten salt exhibited excellent recycling performance and could be repetitively used to prepare metallic vanadium by V_(2)CO *** V^(2+) ions remained in the molten salt after *** electrolysis conditions,such as the cathode diameter,current density,V^(2+) ion concentration,and temperature,were optimised to maximise the current *** was also simulated to reveal the regulatory *** highest current efficiency was 85%.The purity of metallic vanadium was up to 99.8%.In this study,an easy and efficient preparation of pure metallic vanadium was achieved.

关键词： V_(2)CO Metallic vanadium Current efficiency Molten salt electrolysis

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Synthesis and characterization of biodegradable materials:PDLLA-(MAh-Diol)_n-PDLLA copolymer

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Chinese Chemical Letters 2007年第5期18卷 613-616页

作者： jia Chen Yuan liang Wang Mei Na Huang Research Center of Bioinspired Material Science and Engineering （BIMSEC） College of Bioengineering Chongqing University Chongqing 400044 PR China

The novel biodegradable copolymer PDLLA-（MAH-Diol）n-PDLLA with unsaturated bond was synthesized by copolymefizing lactide and prepolymer, which was prepared by the polycondensation of maleic anhydride and poly（ethylene glycol）, using ptoluene sulphonic acid as catalyst. The new copolymer has improved hydrophilicity and flexibility. The structure and properties of the novel polymers were studied by FTIR, NMR, GPC-MALLS and DSC.

关键词： Poly(ethylene glycol) Maleic anhydride PDLLA-(MAH-Diol)n-PDLLA Unsaturated bond

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Optimal V_(2)O_(3) extraction by sustainable vanadate electrolysis in molten salts

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Tungsten 2024年第1期6卷 141-149页

作者： Bao-Yan Feng Zhong-Hua Zhao Yong-Zheng jia jia-liang An Ming-Yong Wang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Beijing Key Laboratory of Green Recovery and Extraction of Rare and Precious Metals University of Science and Technology BeijingBeijing 100083China

Recently,an environmentally friendly electrolysis process of soluble vanadates is proposed and successfully confirmed for V_(2)O_(3) *** this paper,the solubilities of various vanadates(***_(3),Na_(4)V_(2)O_(7) and Na_(3)VO_(4))in NaCl molten salt are *** dependences of V_(2)O_(3) extraction on vanadate form,anode material and molten salt system are studied.A long-term electrolysis is carried *** result indicates that the solubilities of all vanadates are high and meet electrolytic *** to Na_(4)V_(2)O_(7) and Na_(3)VO_(4),NaVO_(3) exhibits larger current efficiency and lower electricity *** using SnO_(2) anode instead of graphite anode,the current efficiency of NaVO_(3) electrolysis can be increased to 58.1%and carbon pollution is avoided at 700℃.The extraction rate of V_(2)O_(3) reaches 81.3%after long-term electrolysis of 51 *** work optimizes the electrochemical preparation process of V_(2)O_(3) from various vanadates and contributes to the improvement of current efficiency and extraction rate.

关键词： Molten salt electrolysis Vanadate Vanadium trioxide Current efficiency

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Dual-functional ion redistributor for dendrite-free lithium metal anodes

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Rare Metals 2020年第8期39卷 861-862页

作者： Hong-Peng Li Xin-Yi Ji jia-Jie liang School of Materials Science and Engineering National Institute for Advanced MaterialsNankai UniversityTianjin 300350China Key Laboratory of Functional Polymer Materials of Ministry of Education College of ChemistryNankai UniversityTianjin 300350China Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry and Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Nankai UniversityTianjin 300350China

With the rapid development of high-end electronic devices such as electric vehicles and portable electronics products,the currently widely used lithium(Li)-ion batteries are found greatly difficult to meet the growing... 详细信息

关键词： lithium distributor Dual

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Understanding of the Effect of Climate Change on Tropical Cyclone Intensity:A Review

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Advances in Atmospheric Sciences 2022年第2期39卷 205-221页

作者： Liguang WU Haikun ZHAO Chao WANG jian CAO jia liang Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Key Laboratory of Meteorological Disaster of Ministry of Education Nanjing University of Information Science and TechnologyNanjing 210044China Innovation Center of Ocean and Atmosphere System Zhuhai Fudan Innovation Research InstituteZhuhai 518057China

The effect of climate change on tropical cyclone intensity has been an important scientific issue for a few *** theory and modeling suggest the intensification of tropical cyclones in a warming climate,there are uncertainties in the assessed and projected responses of tropical cyclone intensity to climate *** a few comprehensive reviews have already provided an assessment of the effect of climate change on tropical cyclone activity including tropical cyclone intensity,this review focuses mainly on the understanding of the effect of climate change on basin-wide tropical cyclone intensity,including indices for basin-wide tropical cyclone intensity,historical datasets used for intensity trend detection,environmental control of tropical cyclone intensity,detection and simulation of tropical cyclone intensity change,and some issues on the assessment of the effect of climate change on tropical cyclone *** addition to the uncertainty in the historical datasets,intertwined natural variabilities,the considerable model bias in the projected large-scale environment,and poorly simulated inner-core structures of tropical cyclones,it is suggested that factors controlling the basin-wide intensity can be different from individual tropical cyclones since the assessment of the effect of climate change treats tropical cyclones in a basin as a whole.

关键词： tropical cyclone climate change intensity change

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Localized and Delocalized States at the Band Gap in Heteroepitaxial GaAs Grown on Si

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Chinese Physics Letters 1999年第2期16卷 132-133页

作者： liang jia-chang XU Zhou LE Xiao-yun Department of Basic Sciences Civil Aviation Institute of ChinaTianjin 300300 Institute of Heavy Ion Physics Peking UniversityBeijing 100871

There exist the interfacial mismatch strains and high density structural defects in heteroepitaxial GaAs grown on Si(GaAs/Si)because of a large misfit of the lattice constants and a large difference in linear thermal expansion coefficient between GaAs and Si *** experiments show that the disordering in GaAs/Si epilayers strongly depends on their growth condition,especially on the concentration ratio[As]/[Ga]and demonstrate that at[As]/[Ga]=20 to 40 the relationship of temperature versus intensities of the dominant photoluminescence(PL)peaks,related to the delocalized states at the band gap of GaAs/Si,satisfies an Arrhenius equation to determine the thermal activation energies of delocalized states and at[As]/[Ga]≥50 the relationship of temperature versus intensities of the dominant PL peaks,related to the localized states,satisfies an equation valid for amorphous semiconductors to determine the characteristic temperatures of localized states reflecting the disorder degree in GaAs/Si epilayers.

关键词： GaAs/Si satis thermal

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Bifunctional iron-phtalocyanine metal-organic framework catalyst for ORR, OER and rechargeable zinc-air battery

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Rare Metals 2020年第7期39卷 815-823页

作者： Wen-Zheng Cheng jia-Lin liang Heng-Bo Yin Ya-Jin Wang Wen-Fu Yan jia-Nan Zhang College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China State Key Laboratory of Inorganic Synthesis and Preparation Jilin UniversityChangchun 130012China

Exploring non-noble metal and high-activity electrocatalysts through a simple and controllable protocol remains a great challenge for oxygen reduction reaction(ORR)and zinc-air ***,we developed a melt polymerization strategy to synthesize iron-polyphthalocyanine(FePPc)metallic-organic frameworks(MOFs)over the carbon black matrix(Fe PPc@CB).Through noncovalentπ-πinteractions,Fe PPc molecules can anchor on carbon matrix,thus facilitating the electron transfer process and stabilizing the *** to abundant free electrons and atomically MN4 catalytic sites in the macrocycle structure,FePPc@CB exhibits excellent oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)electrocatalytic *** FePPc@CB also delivers excellent performances for liquid and flexible all-solidstate batteries compared to that of commercial Pt/C,making it a promising ORR/OER electrocatalyst.

关键词： Metal-organic frameworks Poly-iron-polyphthalocyanine Oxygen reduction reaction Zn-air battery

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Successful treatment of solitary bladder plasmacytoma:A case report

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World Journal of Clinical Cases 2021年第25期9卷 7453-7458页

作者： jia-Dong Cao Peng-Hui Lin Dan-Feng Cai jia-Hua liang Department of Urology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510105Guangdong ProvinceChina The Second Clinical College Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina

BACKGROUND Plasmacytoma is a rare neoplastic disorder that arises from *** bladder plasmacytoma,a type of solitary extramedullary plasmacytoma,is even *** for solitary extramedullary plasmacytoma include surgery,chemotherapy,and ***,there are no clinical trials or guidelines specifying which treatment might represent the gold *** SUMMARY We herein report a case of a 51-year-old woman with solitary bladder plasmacytoma(SBP).There remains no consensus regarding the optimal treatment for ***,we successfully treated her with transurethral resection of bladder tumor followed by postoperative radiotherapy(50 Gy/25 F).The patient remained free of tumor recurrence at a 7-mo *** Radiation is the potential main treatment for ***,surgery is also necessary.

关键词： Bone marrow Local neoplasm recurrence Multiple myeloma M-proteins Urinary bladder neoplasms Case report

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Application of Mean-Field Jordan-Wigner Transformation to Antiferromagnet System

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Communications in Theoretical Physics 2008年第7期50卷 243-247页

作者： LI jia-liang LEI Shu-Guo jiaNG Yu-Chi Department of Physics Changshu Institute of Technology Changshu 215500 China Department of Applied Physics Nanjing University of Technology Nanjing 210009 China jiangsu Laboratory of Advanced Functional Materials Changshu 215500 China

By using the mean-field Jordan-Wigner transformation analysis,this paper studies the one-dimensionalspin-1/2 XYZ antiferromagnetic chain in the transverse field with uniform long-range interactions among the z-components of the *** thermodynamic quantities,such as Helmholtz free energy,the internal energy,the specificheat,and the isothermal susceptibility,are *** degenerating condition,our results agree with numericalresults of the other literatures.

关键词： XYZ antiferromagnetic chain mean-field Jordan-Wigner transformation long-range interactions

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