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High Ion-Selectivity of Garnet Solid Electrolyte Enabling Separation of Metallic Lithium
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作者 Haitian Zhang Jialiang Lang +8 位作者 Kai Liu Yang Jin Kuangyu Wang Yulong Wu Siqi Shi Li Wang Hong Xu Xiangming He Hui Wu 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2023年第6期236-242,共7页
Ionic selectivity is of significant importance in both fundamental science and practical applications.For instance,an ion-selective material allows the passage of a particular kind of ions while blocking the others,wh... Ionic selectivity is of significant importance in both fundamental science and practical applications.For instance,an ion-selective material allows the passage of a particular kind of ions while blocking the others,which could be used for purification of materials.Herein,the Li-ion-selectivity of a garnet-type solid electrolyte is discussed by comparing the difference of activation energy between different ions migrating in solids.The high ion-selectivity is confirmed by harvesting high-purity metallic lithium(99.98 wt%)from low-lithium-purity sources(80 wt%)at a moderate temperature(190℃).This gives it huge potential in separating lithium with impurities especially alkali and alkali-earth elements.The cost of metallic lithium production is only 25%of the international lithium price.The proposed electrochemical metallic lithium separating method is advantageous compared with the traditional process in terms of efficiency,safety,and cost. 展开更多
关键词 ion separating ionic selectivity lithium metal solid electrolyte
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Ion separation and water purification by applying external electric field on porous graphene membrane 被引量:2
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作者 Amir Lohrasebi Samaneh Rikhtehgaran 《Nano Research》 SCIE EI CAS CSCD 2018年第4期2229-2236,共8页
Using molecular dynamics (MD) simulations, a porous graphene membrane was exposed to external electric fields to separate positive and negative ions from salt-water and to produce fresh water. It was observed that, ... Using molecular dynamics (MD) simulations, a porous graphene membrane was exposed to external electric fields to separate positive and negative ions from salt-water and to produce fresh water. It was observed that, by increasing the strength of the applied electric field, ion separation improved noticeably. In addition, to obtain fresh water, the designed system included two graphene membranes, which are exposed to two external electric fields in opposite directions. Ion rejection was found to be greater than 93% for the electric field of 10 mV/A and higher. This atomic-level simulation increases the understanding of electric field effects on desalination using multilayer graphene membranes and can be helpful in designing more efficient membranes. 展开更多
关键词 DESALINATion nanoporous graphene membrane ion separation molecular dynamicss imulation electric field
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Engineering Multi‑field‑coupled Synergistic Ion Transport System Based on the Heterogeneous Nanofluidic Membrane for High‑Efficient Lithium Extraction 被引量:2
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作者 Lin Fu Yuhao Hu +8 位作者 Xiangbin Lin Qingchen Wang Linsen Yang Weiwen Xin Shengyang Zhou Yongchao Qian Xiang‑Yu Kong Lei Jiang Liping Wen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2023年第8期436-449,共14页
The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extract... The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extracting Li from spent LIBs would be a strategic and perspective approach,especially with the low energy consumption and eco-friendly membrane separation method.However,current membrane separation systems mainly focus on monotonous membrane design and structure optimization,and rarely further consider the coordination of inherent structure and applied external field,resulting in limited ion transport.Here,we propose a heterogeneous nanofluidic membrane as a platform for coupling multi-external fields(i.e.,lightinduced heat,electrical,and concentration gradient fields)to construct the multi-field-coupled synergistic ion transport system(MSITS)for Li-ion extraction from spent LIBs.The Li flux of the MSITS reaches 367.4 mmol m^(−2)h^(−1),even higher than the sum flux of those applied individual fields,reflecting synergistic enhancement for ion transport of the multi-field-coupled effect.Benefiting from the adaptation of membrane structure and multi-external fields,the proposed system exhibits ultrahigh selectivity with a Li^(+)/Co^(2+)factor of 216,412,outperforming previous reports.MSITS based on nanofluidic membrane proves to be a promising ion transport strategy,as it could accelerate ion transmembrane transport and alleviate the ion concentration polarization effect.This work demonstrated a collaborative system equipped with an optimized membrane for high-efficient Li extraction,providing an expanded strategy to investigate the other membrane-based applications of their common similarities in core concepts. 展开更多
关键词 Nanofluids ion separation Lithium extraction Synergistic effect Spent lithium-ion battery
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Separation and Concentration of Indium from Leaching Solution Containing Indium, Antimony and Iron Ions 被引量:5
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作者 雷存喜 《Rare Metals》 SCIE EI CAS CSCD 2000年第1期76-80,共5页
Processing conditions of effectively separating indium from the leaching solution of a smelting antimony slag were studied. For the leaching solution containing indium and antimony and iron ions, indium was separated ... Processing conditions of effectively separating indium from the leaching solution of a smelting antimony slag were studied. For the leaching solution containing indium and antimony and iron ions, indium was separated by extracting with HDEHP kerosine solution, washing antimony and iron ions with oxalic acid solution and stripping indium with a dilute solution of hydrochloric acid. InCl 3 solution with purity above 90% is obtained. Indium can be enriched through a circulation of stripping with a dilute HCl solution. The concentration of InCl 3 solution is about 25~30 g/L. 展开更多
关键词 Leaching solution with indium Separating indium from antimony and iron ions Enrichment of indium
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Metal-organic nanosheet assembly ions sieving membrane for precise lithium ion and anion/solvent separation toward robust lithium metal battery
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作者 Jian-Qiang Shen Tian-Tian Zhao +5 位作者 Ying-Li Song Lingjuan Zhang Ya-Nan Gao Xiao-Nan Cui Peng Zhao Xian-Ming Zhang 《Science China Chemistry》 SCIE EI CAS CSCD 2024年第10期3320-3327,共8页
Metal-organic nanosheets(MONs)as a novel material with tunable pore structures and low mass transfer resistance,have emerged as molecular sieves for the separation of gases and liquids.In theory,they can also serve as... Metal-organic nanosheets(MONs)as a novel material with tunable pore structures and low mass transfer resistance,have emerged as molecular sieves for the separation of gases and liquids.In theory,they can also serve as ion sieves for lithium metal batteries(LMBs),realizing the high-energy and dendritic free LMBs.However,there are rarely relevant reports,because it is difficult to simultaneously balance efficient ion sieving ability,high ion passing rate and high electrochemical stability.Here,we synthesized a stable ultrathin MON[Zn_(2)(Bim)_(4)]([Zn_(2)(Bim)_(4)]Nanosheet,HBim=benzimidazolate),which can achieve both efficient lithium ion sieving ability,high lithium ion passing rate and high electrochemical stability at the same time.The separator assembled by this MON exhibits high Li^(+)transfer number of 0.81 due to the accurate lithium ion and anion/solvent separation.The battery containing such separator shows high lithium ionic conductivity of 0.74 m S cm^(-1)and low activation energy of 0.099 eV,which can be attributed to the nanometer level thickness and the ion sieving effect.What is more,we realized the application of MONs-based ion sieves in LMBs with intercalation cathodes for the first time.And the LiFePO_(4)|Li battery with as-assembled separator demonstrates improved Coulombic efficiency(>99%)and significantly extended cycling life(>1600 cycles)with 80%capacity retention. 展开更多
关键词 lithium sieving membrane metal-organic nanosheets lithium metal battery lithium ion and anion separation lithium ion and solvent separation
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Monovalent cation perm-selective membranes(MCPMs)"New developments and perspectives 被引量:9
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作者 Liang Ge Bin Wu +7 位作者 Dongbo Yu Abhishek N.Mondal Linxiao Hou Noor U1 Afsar Qiuhua Li Tingting Xu Jibin Miao Tongwen Xu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2017年第11期1606-1615,共10页
As one of the most typical and promising membrane processes, electrodialysis(ED) technique plays a more and more significant role in industrial separation. Especially, the separation of monovalent cations and multival... As one of the most typical and promising membrane processes, electrodialysis(ED) technique plays a more and more significant role in industrial separation. Especially, the separation of monovalent cations and multivalent cations is currently a hot topic, which is not only desirable for many industries but also challenging for academic explorations. The main aim of the present contribution is to view the advances of a wide variety of monovalent cation perm-selective membranes(MCPMs) and their preparation technologies including(1) covalent crosslinking,(2) surface modification,(3) polymer blending,(4) electrospinning,(5) nanofiltration alike membrane,and(6) organic–inorganic hybrid. The relevant advantages and disadvantages with respect to some specific cases have been discussed and compared in detail. Furthermore, we elaborately discuss the opportunities and challenges of MCPMs, the fabricating strategies to take and the future perspectives. 展开更多
关键词 ion exchange membranes Monovalent cation perm-selective membranes ELECTRODIALYSIS ion separation Electro-nanofiltration
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Engineering Leaf-Like UiO-66-SO3H Membranes for Selective Transport of Cations 被引量:7
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作者 Tingting Xu Muhammad Aamir Shehzad +3 位作者 Xin Wang Bin Wu Liang Ge Tongwen Xu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2020年第4期65-75,共11页
Metal–organic frameworks(MOFs)with angstrom-sized pores are promising functional nanomaterials for the fabrication of cation permselective membranes(MOF-CPMs).However,only a few research reports show successful prepa... Metal–organic frameworks(MOFs)with angstrom-sized pores are promising functional nanomaterials for the fabrication of cation permselective membranes(MOF-CPMs).However,only a few research reports show successful preparation of the MOF-CPMs with good cation separation performance due to several inherent problems in MOFs,such as arduous selfassembly,poor water resistance,and tedious fabrication strategies.Besides,low cation permeation flux due to the absence of the cation permeation assisting functionalities in MOFs is another big issue,which limits their widespread use in membrane technology.Therefore,it is necessary to fabricate functional MOF-CPMs using simplistic strategies to improve cation permeation.In this context,we report a facile in situ smart growth strategy to successfully produce ultrathin(<600 nm)and leaflike UiO-66-SO3H membranes at the surface of anodic alumina oxide.The physicochemical characterizations confirm that sulfonated angstrom-sized ion transport channels exist in the as-prepared UiO-66-SO3H membranes,which accelerate the cation permeation(~3×faster than non-functionalized UiO-66 membrane)and achieve a high ion selectivity(Na^+/Mg^2+>140).The outstanding cation separation performance validates the importance of introducing sulfonic acid groups in MOF-CPMs. 展开更多
关键词 Metal–organic frameworks In situ smart growth UiO-66-SO3H membrane ion separation
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Application of ionic liquids in hydrometallurgy of nonferrous metals 被引量:12
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作者 田国才 李坚 华一新 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2010年第3期513-520,共8页
Ionic liquids as green solvents have shown important application in the extraction and separation of nonferrous metals.The new application perspective,the important fundamental and the applied studies of the extractio... Ionic liquids as green solvents have shown important application in the extraction and separation of nonferrous metals.The new application perspective,the important fundamental and the applied studies of the extraction and separation of nonferrous metals in ionic liquids,including the dissolution and corrosion of metal and metal oxide,hydrometallurgy of chalcopyrite and metallic oxidized ore,and extraction and separation of metal ions,are introduced. 展开更多
关键词 ionic liquids HYDROMETALLURGY nonferrous metals metal oxides mineral processing extraction and separation of metal ions
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Segregation behavior of magnetic ions in continuous flowing solution under gradient magnetic field 被引量:1
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作者 冀冰 吴平 +3 位作者 任菡 张师平 Abdul Rehman 王立 《Chinese Physics B》 SCIE EI CAS CSCD 2016年第7期286-293,共8页
The research of magnetic separation starts from magnetic solid particles to nanoparticles, and in the research progress,particles become smaller gradually with the development of application of magnetic separation tec... The research of magnetic separation starts from magnetic solid particles to nanoparticles, and in the research progress,particles become smaller gradually with the development of application of magnetic separation technology. Nevertheless,little experimental study of magnetic separation of molecules and ions under continuous flowing conditions has been reported. In this work, we designed a magnetic device and a "layered" flow channel to study the magnetic separation at the ionic level in continuous flowing solution. A segregation model was built to discuss the segregation behavior as well as the factors that may affect the separation. The magnetic force was proved to be the driving force which plays an indispensable role leading to the segregation and separation. The flow velocity has an effect on the segregation behavior of magnetic ions,which determines the separation result. On the other hand, the optimum flow velocity which makes maximum separation is related to the initial concentration of solution. 展开更多
关键词 magnetic ions magnetic separation segregation enrichment
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ADSORPTION SELECTIVITY FOR Cu^(2+),Ni^(2+),Co^(2+)IONS USING CROSSLINKING CHITOSAN RESINS IMPRINTED BY METAL IONS
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作者 HUANG Wenqiang HAN Lijun +1 位作者 LI Chenxi HE Binglin 《Chinese Journal of Reactive Polymers》 1999年第1期10-11,共2页
Metal ion-imprintedly crosslinked chitosan resin 1 and resin 2 were prepared by theuse of Cu2+ and Ni2+ as template ions and glutaraldehyde as crosslinking agent, respectively.Through investigation on the adsorption c... Metal ion-imprintedly crosslinked chitosan resin 1 and resin 2 were prepared by theuse of Cu2+ and Ni2+ as template ions and glutaraldehyde as crosslinking agent, respectively.Through investigation on the adsorption capacities and binding constants for Cu2+, Ni2+andCo2+ ions on chitosan resins, resin 1 and resin 2 exhibit the adsorption selectivity for themixture solution of 1:1 Cu2+ and Ni2+ ions. The adsorption selectivity of metal ion-imprintedresins for their template ions is much higher than that of uncrosslinked chitosan resin. 展开更多
关键词 CHITOSAN Metal ion-imprinted chitosan resin Crosslinked chitosan resin separation of metal ions Adsorption selectivity
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Recent advances of rhenium separation and enrichment in China: Industrial processes and laboratory trials 被引量:17
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作者 Yin Wang Congyang Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2018年第3期345-352,共8页
China is a major producer of rhenium, which is widely used in aerospace technologies (as superalloy) and petrochemical industries (as catalyst). There is a gap between the demand and fact for the enrichment of rhe... China is a major producer of rhenium, which is widely used in aerospace technologies (as superalloy) and petrochemical industries (as catalyst). There is a gap between the demand and fact for the enrichment of rhenium, due to its rather small content (10-9) in the earth's crust. Also, there is no available single occurrence of mineral rhenium. Instead, the rhenium is associated with either molybdenum or copper (of up to 0.2% in content) as a by-product in metallurgical industry. This makes the separation of rhenium from the major mineral metals a challenge. The recent progresses in the separation and enrichment of rhenium were reviewed in this paper, especially, the advances in China. The details of varied separation methods used either in laboratories or factories, such as ion-exchange, solvent extraction, separation utilizing extractive resins, liquid membrane, or novel materials, etc., were elaborated. Comparison of the different methods was disclosed and an outlook on the rhenium chemistry and industry in the future was brought forward. 展开更多
关键词 Rhenium separation Enrichment ion exchange Solvent extraction
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Cleaner production of ammonium paratungstate by membrane electrolysis-precipitation of sodium tungstate solution
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作者 Afolabi Uthmon Olayiwola Hao Du +3 位作者 Shao-Na Wang Biao Liu Ye-Qing Lv Bo Pan 《Tungsten》 EI CSCD 2023年第1期145-159,共15页
The production of ammonium paratungstate(APT) is riddled with the generation of wastewater,which causes environmental problems.To solve the problem of wastewater generation at source,a membrane electrolysis-NH3·H... The production of ammonium paratungstate(APT) is riddled with the generation of wastewater,which causes environmental problems.To solve the problem of wastewater generation at source,a membrane electrolysis-NH3·H2O precipitation method,which prevents wastewater generation and recycles the reagents used in the process,was proposed and investigated in this study.The electrolysis process was investigated based on parameters such as initial cathodic and anodic NaOH concentrations,and current density.The results showed that an increase in current density and initial cathodic NaOH concentration and a decrease in the initial anodic NaOH concentration would enhance the separation of tungsten and sodium.The optimum condition was found at a current density of 666 A·m^(-2),initial anodic and cathodic NaOH concentrations of 69 g·L^(-1) and 40 g·L^(-1),with a current efficiency of 75.40%,and energy consumption for producing 1 ton of NaOH was 2184 kW·h.The precipitation process was investigated based on the acidic high W/Na molar ratio solution obtained by the electrolysis process with NH3·H2O as the precipitant.Parameters such as excessive coefficient,temperature,and W/Na molar ratio were studied.The result showed that the variation of excessive coefficient and solution temperature had an opposite effect on the purity of the APT,while an increase in the W/Na molar ratio would increase the product purity.The precipitation product obtained had a purity of 99.6% and was characterized using X-ray diffraction,inductively coupled plasma,and scanning electron microscopy.The methods proposed in this study could provide fundamental information for the design of a cleaner APT production process. 展开更多
关键词 Membrane electrolysis Ammonium paratungstate separation of sodium and tungsten ions ion states of tungsten Cleaner production
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Magnetically separated and N, S co-doped mesoporous carbon microspheres for the removal of mercury ions 被引量:5
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作者 Ming-Xian Liu Xiang-Xiang Deng +4 位作者 Da-Zhang Zhu Hui Duan Wei Xiong Zi-Jie Xu Li-Hua Gan 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第5期795-800,共6页
Magnetically separated and N, S co-doped mesoporous carbon microspheres (NIS-MCMs/Fe304) are fabricated by encapsulating Si02 nanoparticles within N, S-containing polymer microspheres which were prepared using resor... Magnetically separated and N, S co-doped mesoporous carbon microspheres (NIS-MCMs/Fe304) are fabricated by encapsulating Si02 nanoparticles within N, S-containing polymer microspheres which were prepared using resorcinol/formaldehyde as the carbon source and cysteine as the nitrogen and sulfur co-precursors, followed by the carbonization process, silica template removal, and the introduction of Fe3O4 into the carbon mesopores. N/S-MCMs/Fe3O4 exhibits an enhanced Hg2+ adsorption capacity of 74.5 rag/g, and the adsorbent can be conveniently and rapidly separated from wastewater using an external magnetic field. This study opens up new opportunities to synthesize well- developed, carbon-based materials as an adsorbent for potential applications in the removal of mercury ions from wastewater. 展开更多
关键词 N S co-doped mesoporous carbonmicrospheres MagnetiteAdsorption Mercury ion Magnetic separation
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IMPROVING THE PROPERTIES OF HDPE BASED SEPARATORS FOR LITHIUM ION BATTERIES BY BLENDING BLOCK WITH COPOLYMER PE-b-PEG
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作者 Jun-li Shi Hao Li +2 位作者 Li-feng Fang Zhi-ying Liang 朱宝库 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2013年第2期309-317,共9页
To improve the performances of HDPE-based separators, polyether chains were incorporated into HDPE membranes by blending with poly(ethylene-block-ethylene glycol) (PE-b-PEG) via thermally induced phase separation ... To improve the performances of HDPE-based separators, polyether chains were incorporated into HDPE membranes by blending with poly(ethylene-block-ethylene glycol) (PE-b-PEG) via thermally induced phase separation (TIPS) process. By measuring the composition, morphology, crystallinity, ion conductivity, etc, the influence of PE-b-PEG on structures and properties of the blend separator were investigated. It was found that the incorporated PEG chains yielded higher surface energy for HDPE separator and improved affinity to liquid electrolyte. Thus, the stability of liquid electrolyte trapped in separator was increased while the interfacial resistance between separator and electrode was reduced effectively. The ionic conductivity of liquid electrolyte soaked separator could reach 1.28 ×10^-3 S.cm^-1 at 25℃, and the electrochemical stability window was up to 4.5 V (versus Li^+/Li). These results revealed that blending PE-b-PEG into porous HDPE membranes could efficiently improve the performances of PE separators for lithium batteries. 展开更多
关键词 Polyethylene Poly(ethylene-block-ethylene glycol) copolymer Blend porous separator Thermally inducedphase separation Lithium ion battery separator.
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