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Resultados 62 resultados LastUpdate Última actualización 18/10/2018 [17:48:00] pdf PDF




Solicitudes publicadas en los últimos 60 días (excluida automoción) / Applications published in the last 60 days (Automotion publications excluded)



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FORMATION OF THREE-DIMENSIONAL MATERIALS BY COMBINING CATALYTIC AND PRECURSOR MATERIALS

NºPublicación: EP3386913A1 17/10/2018

Solicitante:
UNIV RICE WILLIAM M [US]
UNIV TIANJIN [CN]

Resumen de: WO2017091815A1

Embodiments of the present disclosure pertain to methods of making three-dimensional materials by combining a catalytic material with a precursor material and forming the three- dimensional material from the precursor material in the presence of the catalytic material. The three-dimensional material may be formed on surfaces and internal cavities of the catalytic material. The formed three-dimensional material includes a plurality of connected units that are derived from the precursor materials. The methods of the present disclosure may also include steps of separating catalytic materials from the formed three-dimensional materials and incorporating the three-dimensional materials as a component of an energy storage device (e.g., as an electrode in a capacitor). Additional embodiments of the present disclosure pertain to the formed three-dimensional materials.



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种黄色荧光碳点及其制备方法和应用

NºPublicación: CN108659833A 16/10/2018

Solicitante:
\u5C71\u897F\u5927\u5B66

Resumen de: CN108659833A

本发明公开了种发射黄色荧光的碳点及其制备方法,以及该碳点用于免标记检测喹诺酮类抗生素。所述碳点为种以邻苯二胺和氨基丁酸为原料,通过步水热合成法制备的黄色荧光碳点。碳点的制备方法简便,制得的碳点光学性质稳定,水溶性好,分散性好。由于碳点独特的表面结构,以其作为荧光探针能够免标记地、快速灵敏地检测喹诺酮类抗生素。当喹诺酮类抗生素存在时,碳点的荧光被喹诺酮类抗生素有效淬灭,根据荧光的变化程度可以检测出样品中喹诺酮类抗生素的含量。当本发明提供的检测喹诺酮类抗生素的方法与传统方法相比,简便快速,无需额外修饰标记物,可直接检测样品,在实际应用中具有更多的优势。



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种Ag@NGO复合纳米材料的制备方法及其应用

NºPublicación: CN108645837A 12/10/2018

Solicitante:
\u54C8\u5C14\u6EE8\u5DE5\u4E1A\u5927\u5B66\u6DF1\u5733\u7814\u7A76\u751F\u9662

Resumen de: CN108645837A

本发明属于材料制备技术领域,特别涉及种Ag@NGO复合纳米材料的制备方法及其应用,所述制备方法获得的材料可以作为活性SERS基底制造纸基SERS“芯片”。所述Ag@NGO复合纳米材料结合了银纳米颗粒的SERS效应以及氧化石墨烯的化学惰性和光学透明性,极大地提高了其作为SERS活性基底的性能。利用普通滤纸作为检测衬底,方便简单,而且非常廉价,这种Ag@NGO纸基SERS“芯片”也将成为非常便捷有效的检测工具。



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种空心碳球微纳团聚体/硫复合材料的制备方法及其应用

NºPublicación: CN108640102A 12/10/2018

Solicitante:
\u4E2D\u56FD\u4EBA\u6C11\u89E3\u653E\u519B\u56FD\u9632\u79D1\u6280\u5927\u5B66

Resumen de: CN108640102A

种空心碳球微纳团聚体/硫复合材料的制备方法,包括以下步骤:a)将有机物包覆无机物的纳米球均匀分散在水或水与醇的溶剂中,得到混合溶液;b)将定质量的水性粘结剂完全溶解在水中,然后在搅拌下加入到上述混合溶液中,加热干燥蒸发掉溶剂,得到纳米空心碳球微纳结构前驱体;c)在惰性气氛或含氢还原性气氛下高温烧结,得到纳米空心碳球微纳结构前驱体碳化物;d)置于氢氟酸水溶液中或热的氢氧化钠水溶液中,刻蚀掉纳米空心碳球中的无机物,经洗涤干燥得到纳米空心碳球微纳团聚体;e)将纳米空心碳球微纳团聚体与定质量的硫粉混合,研磨均匀后,放置在充满N的烘箱中加热到155℃并保温6~24h,冷却后制得产品。



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种以氧化石墨烯为模板制备金属纳米粒子的方法

NºPublicación: CN108637270A 12/10/2018

Solicitante:
\u621A\u660E\u6D77

Resumen de: CN108637270A

本发明公开了种金属纳米粒子的制备方法,本发明的制备方案为将氧化石墨烯与三羟甲基氨基丙烷反应进步增加羟基的反应位点,然后与带有羧基的巯基小分子进行酯化反应,将巯基引入到氧化石墨烯上,然后以巯基修饰的氧化石墨烯为模板,与金属可溶解盐和还原剂起反应,制备以氧化石墨烯为模板的金属纳米粒子,制备的金属纳米粒子粒径<30nm,而且几乎没有团聚现象发生,使这些金属纳米粒子在分子器件、化学/生物传感器、催化、光电子材料领域应用成为可能。



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PREPARATION METHOD OF COMPOSITE MATERIAL HAVING NITROGEN-DOPED GRAPHENE/COPPER SULFIDE/HOLLOW SULFUR PARTICLES

NºPublicación: WO2018184157A1 11/10/2018

Solicitante:
SHENZHEN PEICHENG TECH CO LTD [CN]

Resumen de: WO2018184157A1

A preparation method of a composite material having nitrogen-doped graphene/copper sulfide/hollow sulfur particles, the method comprising the following steps: step (1), adding sulfur powder into carbon disulfide, and stirring and dissolving the same to obtain a homogeneous solution; step (2), ball milling high purity nickel powder by means of a high energy ball mill, adding the ball-milled product into the solution, stirring the same to form a homogeneous suspension, performing mechanical stirring, and spraying and drying to obtain sulfur-coated spherical particles; step (3), adding the spherical particles into a solution added with iron chloride, stirring to react, and rinsing with water and filtering; and step (4), adding the filtered-out precipitate into a solution containing copper chloride, thioacetamide, and a surfactant, stirring to form a homogeneous suspension, heating and stirring to react, and performing centrifugation and water rinsing to obtain sulfur particles coated with copper sulfide. The composite material is designed to have a hollow structure to reserve space for volume expansion of the sulfur material during a charging or discharging process, thus effectively improving electrochemical properties.



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NANO-ENGINEERED SURFACES FOR ACTIVELY REVERSIBLE AND REUSABLE DRY ADHESION SYSTEMS AND RELATED METHODS

NºPublicación: US2018290884A1 11/10/2018

Solicitante:
METIS DESIGN CORP [US]

Resumen de: US2018290884A1

An actively reversible and reusable dry adhesion system, and related methods for using the same, may comprise a first plurality of nanoparticles, e.g., carbon nanotubes, formed on a first substrate that may be selectively reconfigured in response to an active stimulus, e.g., electrical current, temperature gradient, magnetism, etc.; a second plurality of nanoparticles, e.g., carbon nanotubes, formed on a second substrate that may be selectively reconfigured in response to the active stimulus; and a switch or button that may be operably connected to the first and second substrates. The switch or button may be configured to selectively apply the active stimulus. When the switch or button is activated, the first and second pluralities of nanoparticles may interlock to adhere the first substrate to the second substrate. The dry adhesion system may form an interlocking fastener on a nanoscale, and may be reversible and reusable.



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PREPARATION METHOD OF COMPOSITE MATERIAL HAVING NITROGEN-DOPED GRAPHENE/MANGANESE DIOXIDE/HOLLOW SULFUR PARTICLES

NºPublicación: WO2018184156A1 11/10/2018

Solicitante:
SHENZHEN PEICHENG TECH CO LTD [CN]

Resumen de: WO2018184156A1

Provided in the present invention is a preparation method of a composite material having nitrogen-doped graphene/manganese dioxide/hollow sulfur particles, the method comprising the following steps: step (1), adding sulfur powder into carbon disulfide, and stirring and dissolving the same to obtain a homogeneous solution; step (2), ball milling high purity nickel powder by means of a high energy ball mill, adding the ball-milled product into the aforementioned solution, stirring the same to form a homogeneous suspension, performing mechanical stirring, and spraying and drying to obtain sulfur-coated spherical particles; step (3), adding the spherical particles into a solution added with iron chloride, stirring to react, and rinsing with water and filtering; and step (4), adding the filtered-out precipitate into a solution containing manganese chloride and potassium permanganate, stirring to form a homogeneous suspension, heating and stirring to react, and performing centrifugation and water rinsing to obtain sulfur particles coated with manganese dioxide. The composite material is designed to have a hollow structure to reserve space for volume expansion of the sulfur material during a charging or discharging process, thus effectively improving electrochemical properties.



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FUNCTIONALIZED GRAPHENE SHEETS HAVING HIGH CARBON TO OXYGEN RATIOS

NºPublicación: US2018291182A1 11/10/2018

Solicitante:
UNIV PRINCETON [US]

Resumen de: US2018291182A1

Functionalized graphene sheets having a carbon to oxygen molar ratio of at least about 23:1, an apparatus for preparing the same, and method of preparing the same using the apparatus.



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Eco-friendly Production of Graphene

NºPublicación: US2018290890A1 11/10/2018

Solicitante:
NANOTEK INSTRUMENTS INC [US]

Resumen de: US2018290890A1

Provided is method of producing graphene directly from a pulp, paper, or paper product, the method comprising a procedure of subjecting the pulp, paper, or paper product (preferably containing post-consumer, reclaimed, or recycled product) to a graphitization treatment at a graphitization temperature in the range of 1,500° C. to 3,400° C. (preferably >2,500° C.) in a substantially non-oxidizing environment for a length of time sufficient for converting the product to a graphene material product. Preferably and typically, the method does not involve the use of an externally added undesirable chemical (other than those paper chemicals already present in the paper product) or catalyst. The method is environmentally benign, ecologically friendly, and highly scalable.



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种碳包覆高岭土纳米复合材料的制备方法

NºPublicación: CN108622889A 09/10/2018

Solicitante:
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Resumen de: CN108622889A

本发明公开了种碳包覆高岭土的纳米复合材料的制备方法,包括以下步骤:取石墨、高岭土放入去离子水中,沸腾状态下回流;将三口烧瓶冷却至60‑80℃,加入聚乙烯醇PVA,搅拌,得到黑色悬浊液;将所述悬浊液超声,抽滤,冷却后得到滤饼;将滤饼真空干燥研磨,得到产品即碳包覆高岭土纳米复合材料。本发明成本低、简便、快速,实现了大规模的生产绿色环保稳定的碳包覆高岭土纳米复合材料。



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硫化银量子点-石墨烯气凝胶复合材料及其制备方法

NºPublicación: CN108622924A 09/10/2018

Solicitante:
\u6E05\u534E\u5927\u5B66

Resumen de: CN108622924A

本发明公开了种硫化银量子点‑石墨烯气凝胶复合材料及其制备方法,硫化银量子点‑石墨烯气凝胶复合材料包括石墨烯片层交联立体骨架和均匀分散在石墨烯片层表面的硫化银量子点,且该复合材料具有多孔三维立体结构;制备方法包括,制备硫化银量子点原液,并与氧化石墨烯粉末超声混合,随后置于无氧环境下,在100‑300℃水热反应0.5‑10h,最后置于醇类水溶液中,透析并冷冻干燥,即得。本发明所提供的制备硫化银量子点‑石墨烯气凝胶复合材料的方法中,硫化银量子点表面含有丰富的官能团,能起到还原剂和交联剂的双重作用,硫化银量子点则均匀分散在石墨烯片层上;该方法科学简便,易于操作,可控性强,重现性好,应用前景广阔。



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Method for producing a nanometric crystalline particles TiO2 on the surface of carbon material coming from the lignocellulose biomass

NºPublicación: PL420973A1 08/10/2018

Solicitante:
INST CHEMII FIZYCZNEJ POLSKIEJ AKADEMII NAUK [PL]

Resumen de: PL420973A1

Zgłoszenie dotyczy sposobu wytwarzania nanocząstek TiO2 na powierzchni materiału węglowego, pochodzącego z biomasy lignocelulozowej, w możliwie łagodnych niskotemperaturowych warunkach (bez wysokoenergetycznego etapu kalcynacji po syntezie kompozytu), w procesie, który byłby względnie prosty w realizacji i przyjazny dla środowiska, metodą zol-żel wspomaganej ultradźwiękami wraz z dodatkiem kwasu cytrynowego z wytworzeniem nanometrycznych krystalicznych cząstek TiO2 na powierzchni materiału węglowego pochodzącego z biomasy lignocelulozowej.



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METHOD FOR THE PURIFICATION OF RAW CARBON NANOTUBES

NºPublicación: FR3064623A1 05/10/2018

Solicitante:
ARKEMA FRANCE [FR]
HYDRO QUEBEC [CA]

Resumen de: WO2018178929A2

The present invention relates to a method for the purification of raw carbon nanotubes in order to obtain a metal impurity level of between 5 ppm and 200 ppm. The method comprises increasing the bulk density of the raw carbon nanotubes by means of compaction in order to produce compacted carbon nanotubes. The method also comprises sintering the compacted carbon nanotubes by means of heat treatment in a gaseous atmosphere in order to remove at least some of the metal impurities contained in the raw carbon nanotubes, thereby producing purified carbon nanotubes. The purified carbon nanotubes can be used directly as electronic conductors serving as basic additives for an electrode material, without requiring any subsequent purification step. The electrode material can then be used to produce an electrode intended for a lithium-ion battery.



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LITHIUM ION BATTERY ANODE

NºPublicación: US2018287195A1 04/10/2018

Solicitante:
UNIV TSINGHUA [CN]
HON HAI PREC IND CO LTD [TW]

Resumen de: US2018287195A1

A lithium ion battery anode includes a carbon nanotube sponge and a plurality of transition metal oxide particles. The carbon nanotube sponge is a honeycomb structure including a plurality of carbon nanotubes joined with each other by van der Waals attractive force. The carbon nanotube sponge includes a plurality of holes having sizes greater than or equal to 5 microns. The plurality of transition metal oxide particles are uniformly attached to surfaces of the plurality of carbon nanotubes and located in the holes. Sizes of the plurality of transition metal oxide particles are less than or equal to 200 nanometers.



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LITHIUM ION BATTERY

NºPublicación: US2018287196A1 04/10/2018

Solicitante:
UNIV TSINGHUA [CN]
HON HAI PREC IND CO LTD [TW]

Resumen de: US2018287196A1

A lithium ion battery including a shell, an anode, a cathode, an electrolyte and a separator is provided. The anode includes a carbon nanotube sponge and a plurality of transition metal oxide particles. The carbon nanotube sponge includes a plurality of carbon nanotubes. The plurality of transition metal oxide particles are uniformly attached to surfaces of the plurality of carbon nanotubes and located in the sponge.



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METHOD FOR MAKING LITHIUM ION BATTERY ANODE

NºPublicación: US2018287132A1 04/10/2018

Solicitante:
UNIV TSINGHUA [CN]
HON HAI PREC IND CO LTD [TW]

Resumen de: US2018287132A1

A method for making lithium ion battery anode includes: scrapping a carbon nanotube array to obtain a carbon nanotube source, and adding the carbon nanotube source into water to form a carbon nanotube dispersion; providing a transition metal nitrate, adding the transition metal nitrate to the carbon nanotube dispersion to form a mixture of a carbon nanotube floccule and a transition metal nitrate solution; freeze-drying the mixture of the carbon nanotube floccule and the transition metal nitrate solution under vacuum condition to form a lithium ion batter anode preform; and, heat-treating the lithium ion battery anode preform to form the lithium ion battery anode.



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Direct Microwave Production of Graphene

NºPublicación: US2018286599A1 04/10/2018

Solicitante:
NANOTEK INSTRUMENTS INC [US]

Resumen de: US2018286599A1

Provided is a method of producing graphene directly from a non-intercalated and non-oxidized graphitic material, comprising: (a) dispersing the graphitic material in a liquid solution to form a suspension, wherein the graphitic material has never been previously exposed to chemical intercalation or oxidation; and (b) subjecting the suspension to microwave or radio frequency irradiation with a frequency and an intensity for a length of time sufficient for producing graphene; wherein the liquid solution contains a metal salt dissolved in water, organic solvent, ionic liquid solvent, or a combination thereof. The method is fast (minutes as opposed to hours or days of conventional processes), environmentally benign, and highly scalable.



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LITHIUM ION BATTERY

NºPublicación: US2018287197A1 04/10/2018

Solicitante:
UNIV TSINGHUA [CN]
HON HAI PREC IND CO LTD [TW]

Resumen de: US2018287197A1

A lithium ion battery including a shell, an anode, a cathode and an electrolyte film is provided. The anode includes a carbon nanotube sponge and a plurality of transition metal oxide particles. The carbon nanotube sponge includes a plurality of carbon nanotubes. The carbon nanotube sponge includes a plurality of holes. The plurality of transition metal oxide particles are uniformly attached to surfaces of the plurality of carbon nanotubes and located in the carbon nanotube sponge.



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NANO COMPOSITE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

NºPublicación: WO2018176259A1 04/10/2018

Solicitante:
QINGDAO UNIV OF SCIENCE AND TECHNOLOGY [CN]

Resumen de: WO2018176259A1

Provided in the present invention are a graphene-loaded silver ferrite (Ag-MFe2O4) nano composite material, and a preparation method and an application thereof, the nano composite material being a composite of graphene-loaded silver ferrite heterogeneous nano particles. The preparation method may use a process of directly loading the silver ferrite hetereogenous nano particles onto graphene, or may also use a process of first loading the particles onto graphene oxide and then reducing same. As an electrocatalyst, the graphene-loaded silver ferrite nano composite material has good stability, resistance to methanol toxicity, high electrical conductivity and high catalytic activity; the preparation method thereof is simple and low cost, the reaction conditions are easily controlled, and the obtained material has a uniform morphology, good dispersibility, and can easily be expanded to large scale production.



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METHOD FOR PREPARING GRAPHENE OXIDE QUANTUM DOTS IN A LARGE SCALE WITH CRYPTOCRYSTALLINE GRAPHITE

NºPublicación: WO2018177267A1 04/10/2018

Solicitante:
UNIV OF SHANGHAI FOR SCIENCE AND TECHNOLOGY [CN]

Resumen de: WO2018177267A1

A method for preparing graphene oxide quantum dots in a large scale with cryptocrystalline graphite, comprising the following steps: mixing a certain amount of cryptocrystalline graphite powder, sodium nitrate, and sulfuric acid with ultrasonic treating; stirring the solution for 1-3 hours in ice-water bath; adding a certain amount of potassium permanganate, and mixing while stirring, then increasing temperature; adding deionized water, increasing the temperature and maintain for 1-3 hours, then diluting with water and adding a certain amount of hydrogen peroxide, stirring followed by standing and staying overnight; adding hydrochloric solution; adding water into the solution, implementing centrifugal clean till the pH value equals 7, and implementing centrifugally ultrasonic treatment, thereby the graphene oxide quantum dots are obtained.



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CARBON NANOTUBE DISPERSION

NºPublicación: WO2018179760A1 04/10/2018

Solicitante:
AIST [JP]

Resumen de: WO2018179760A1

Provided is a highly viscous dispersion comprising carbon nanotube (CNT) aggregates wherein the quality of CNTs having an initial state of particles, powder, or flakes is maintained, the dispersion being suitable for use in fabrication processes such as applying, coating, and spinning CNTs. The carbon nanotube dispersion according to an embodiment of the present invention comprises water or an organic solvent, and 0.01 to 20 parts by weight of CNT aggregates in the solvent. The carbon nanotube dispersion has a density of 0.6 to 1.5 g/cm3 and when measured under conditions in which the shear rate is 2 to 10 s-1 at room temperature, the carbon nanotube dispersion comprising 0.1 parts by weight of carbon nanotubes has a viscosity at least 100 times that of the viscosity of the solvent when the solvent has a viscosity of less than 10 mPa∙s, has a viscosity at least five times that of the viscosity of the solvent when the solvent has a viscosity of 10 to 100 mPa∙s, and has a viscosity at least two times that of the viscosity of the solvent when the solvent has a viscosity of greater than 100 mPa∙s.



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METHOD FOR PRODUCING FIBROUS CARBON NANOSTRUCTURE DISPERSION AND FIBROUS CARBON NANOSTRUCTURE DISPERSION

NºPublicación: WO2018180350A1 04/10/2018

Solicitante:
ZEON CORP [JP]

Resumen de: WO2018180350A1

Provided is a method for efficiently producing a highly dispersed dispersion of a fibrous carbon nanostructure. Also provided is a highly dispersed dispersion of a fibrous carbon nanostructure. This method for producing a fibrous carbon nanostructure dispersion comprises a step of continuously centrifuging a solution containing a fibrous carbon nanostructure and a solvent.



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CRACKING OF A PROCESS GAS

NºPublicación: WO2018182928A1 04/10/2018

Solicitante:
LYTEN INC [US]

Resumen de: WO2018182928A1

A process gas (such as a hydrocarbon gas) is flowed through a thermal cracking apparatus to crack the process gas into constituent components (such as hydrogen gas and solid carbon nano-particles, e.g., carbon nano-onions, necked carbon nano-onions, carbon nanospheres, graphene, graphite, highly ordered pyrolytic graphite, single walled nanotubes, and/or multi-walled nanotubes). The thermal cracking apparatus has an elongated heating element disposed within an inner volume along a longitudinal axis thereof. The elongated heating element heats the process gas as it flows within a longitudinal elongated reaction zone to thermally crack molecules of the process gas into the constituent components of the molecules.



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DIRECT MICROWAVE PRODUCTION OF GRAPHENE

Nº publicación: WO2018182920A1 04/10/2018

Solicitante:
NANOTEK INSTRUMENTS INC [US]

Resumen de: WO2018182920A1

Provided is a method of producing graphene directly from a non-intercalated and non-oxidized graphitic material, comprising: (a) dispersing the graphitic material in a liquid solution to form a suspension, wherein the graphitic material has never been previously exposed to chemical intercalation or oxidation; and (b) subjecting the suspension to microwave or radio frequency irradiation with a frequency and an intensity for a length of time sufficient for producing graphene; wherein the liquid solution contains a metal salt dissolved in water, organic solvent, ionic liquid solvent, or a combination thereof. The method is fast (minutes as opposed to hours or days of conventional processes), environmentally benign, and highly scalable.


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