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vanadium 5

solvent extraction 2

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V-concentrating phase 1

austempered ductile iron (ADI) 1

bismuth vanadium tetraoxide 1

black shale 1

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Coextraction of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 902-912 doi: 10.1007/s11705-019-1887-z

Abstract: High-manganese containing vanadium wastewater (HMVW) is commonly produced during the vanadium extractionprocess from vanadium titano-magnetite.In the solvent extraction process, 98.15% of vanadium was recovered, and the V O product, with a purity

Keywords： high-manganese containing vanadium wastewater     solvent extraction     carbonate precipitation     vanadium titano-magnetite    

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Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0746-2

Abstract: desirable combination of mechanical properties for crankshaft applications by the combined effect of vanadiumthe carbon enrichment of austenite phases in ADI samples were remarkably affected by the addition of vanadium

Keywords： austempered ductile iron (ADI)     vanadium alloying     mechanical properties     crankshafts     retained austenite    

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Highly efficient and selective removal of vanadium from tungstate solutions by microbubble floating-extraction

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 581-593 doi: 10.1007/s11705-022-2235-2

Abstract: Selective separation of dissolved tungsten and vanadium is of great significance for the utilizationIn this work, selective removal of vanadium from tungstate solutions via microbubble floating-extractionThe results indicated that vanadium can be more easily mineralized over tungsten from tungstate solutionsAdditionally, the deep recovery of tungsten and vanadium from the floated organic phase could be easilyUnder the optimal conditions, the removal efficiency of vanadium reached 98.5% with tungsten loss below

Keywords： tungsten     vanadium     selective separation     reagent mineralization     microbubble floating-extraction    

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Characterization and comparison of organic functional groups effects on electrolyte performance for vanadium

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1221-1230 doi: 10.1007/s11705-023-2298-8

Abstract: The vanadium redox flow battery with a safe and capacity-controllable large-scale energy storage systemstability limitations, as well as to investigate the effects of various organic functional groups on the vanadium0.22 Ah, 5.0 Wh·L–1, 85.0%), the results show that taurine has the advantage of maintaining vanadium

Keywords： vanadium redox flow battery     functional groups     organic additives     energy density     stability    

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Utilization of waste vanadium-bearing resources in the preparation of rare-earth vanadate catalysts for

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1793-1806 doi: 10.1007/s11705-022-2191-x

Abstract: we proposed a new strategy for the utilization of petrochemical-derived carbon black waste, a waste vanadium-bearingChemical leaching was employed to extract metallic vanadium from the waste and the leachate containingcontaminated Na+ during the leaching process showed strong competitive coordination with the vanadiumOur work provides a valuable new reference for preparing vanadate catalysts by the use of abundant vanadium-bearing

Keywords： petrochemical solid wastes     vanadium recovery     resource utilization     nanomaterials     semi-hydrogenation    

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Vanadium and molybdenum concentrations in particulate from Palermo (Italy): analytical methods using

Diana AMORELLO,Santino ORECCHIO

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 605-614 doi: 10.1007/s11783-014-0703-8

Abstract: The main purpose of this work was to develop a reliable method for the determination of vanadium (V)Vanadium concentrations in particulate samples collected in Palermo area ranged from 0.57 to 7.7 ng·m

Keywords： vanadium     molybdenum     particulate     voltammetry     Palermo    

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Vanadium metabolism investigation using substance flow and scenario analysis

Fangfang ZHANG, Huiquan LI, Bo CHEN, Xue GUAN, Yi ZHANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 256-266 doi: 10.1007/s11783-013-0585-1

Abstract: Vanadium is a vital strategic resource, and vanadium metabolism is an important part of the nationalThis study conducts accounting and scenario analysis on the life cycle of vanadium metabolism in Chinaa quantitative evaluation of a static anthropogenic vanadium life cycle for the year 2010.The overall utilization ratio of vanadium is 32.2%.A large amount of vanadium is stockpiled into tailings, debris, slags, and other spent solids.

Keywords： metabolism     vanadium industry     substance flow analysis     scenario analysis    

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Synthesis of cobalt vanadium nanomaterials for efficient electrocatalysis of oxygen evolution

Meifeng Hao, Mingshu Xiao, Lihong Qian, Yuqing Miao

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 409-416 doi: 10.1007/s11705-017-1689-0

Abstract:

A low-cost and high-activity catalyst for oxygen evolution reaction (OER) is the key to the water splitting technology for hydrogen generation. Here we report the use of three solvents, DMF, ethanol and glycol, in the solvothermal synthesis of three nano-catalysts, Co3(VO4)2-I, Co3(VO4)2-II, and Co3(VO4)2-III, respectively. Transmission electron microscope shows Co3(VO4)2-I, II, and III exist as ultrafine nanosheets, ultrathin nanofilms, and ultrafine nanosheet-comprised microspheres, respectively. These Co3(VO4)2 catalysts exhibit OER electrocatalysis, among which the Co3(VO4)2-II shows the lowest onset overpotential of 310 mV and only requires a small overpotential of 330 mV to drive current density of 10 mA/cm2. Due to their high surface free energy, the ultrathin nanofilms of Co3(VO4)2-II exhibits a good immobilization effect with the high electrocatalytic activity for OER.

Keywords： Co3(VO4)2     oxygen evolution reaction     electrocatalyst     water splitting    

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Vanadium(IV) solvent extraction enhancement in high acidity using di-(2-ethylhexyl)phosphoric acid with

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 56-67 doi: 10.1007/s11705-022-2185-8

Abstract: Separation of vanadium from black shale leaching solution at low pH is very meaningful, which can effectivelyavoid the generation of alkali neutralization slag and the resulting vanadium loss.In this study, coordination mechanism of vanadium in acid leaching solution at low pH was investigatedethylhexyl)phosphoric acid concentration of 20%, phase ratio of 1:2, and extraction time of 8 min, the vanadiumH2O–V, the V–Cl bond is longer and the potential difference between coordinate ions and vanadium

Keywords： vanadium     black shale     solvent extraction     high acidity extraction    

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Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic oxidative desulfurization

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 3,   Pages 276-287 doi: 10.1007/s11705-022-2242-3

Abstract: Particle size governs the electronic and geometric structure of metal nanoparticles (NPs), shaping their catalytic performances in heterogeneous catalysis. However, precisely controlling the size of active metal NPs and thereafter their catalytic activities remain an affordable challenge in ultra-deep oxidative desulfurization (ODS) field. Herein, a series of highly-efficient VOx/boron nitride nanosheets (BNNS)@TiO2 heterostructures, therein, cetyltrimethylammonium bromide cationic surfactants serving as intercalation agent, BNNS and MXene as precursors, with various VOx NP sizes were designed and controllably constructed by a facile intercalation confinement strategy. The properties and structures of the prepared catalysts were systematically characterized by different technical methods, and their catalytic activities were investigated for aerobic ODS of dibenzothiophene (DBT). The results show that the size of VOx NPs and V5+/V4+ play decisive roles in the catalytic aerobic ODS of VOx/BNNS@TiO2 catalysts and that VOx/BNNS@TiO2-2 exhibits the highest ODS activity with 93.7% DBT conversion within 60 min under the reaction temperature of 130 °C and oxygen flow rate of 200 mL·min–1, which is due to its optimal VOx dispersion, excellent reducibility and abundant active species. Therefore, the finding here may contribute to the fundamental understanding of structure-activity in ultra-deep ODS and inspire the advancement of highly-efficient catalyst.

Keywords： oxidative desulfurization     boron nitride     vanadium     MXene     intercalation confinement    

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Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic ozonation

Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 185-191 doi: 10.1007/s11705-018-1713-z

Abstract: In this work, a dendritic bismuth vanadium tetraoxide (BiVO ) material composited with highly dispersed

Keywords： manganese oxide     bismuth vanadium tetraoxide     photocatalytic ozonation     hydroxyl radical     co-catalyst    

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Redox flow batteries—Concepts and chemistries for cost-effective energy storage

Matthäa Verena HOLLAND-CUNZ, Faye CORDING, Jochen FRIEDL, Ulrich STIMMING

Frontiers in Energy 2018, Volume 12, Issue 2,   Pages 198-224 doi: 10.1007/s11708-018-0552-4

Abstract: the cost of components such as redox species and membranes, commercialised RFB systems like the all-vanadium

Keywords： electrochemical energy storage     redox flow battery     vanadium    

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Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1244-1253 doi: 10.1007/s11705-022-2293-5

Abstract: Vanadium oxides as cathode for zinc-ion batteries have attracted much attention because of their highHowever, cathodes are susceptible to the collapse of their layered structure and the dissolution of vanadiumThe pre-intercalation of calcium-ion between vanadium pentoxide layers as pillars increase the crystalwhile the polyaniline coating on the cathodes improves the conductivity and inhibits the dissolution of vanadiumThe vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline

Keywords： zinc-ion battery     CaV8O20     polyaniline coating     synergistic engineering     high capacity     long durability    

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Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution reaction electrocatalyst

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1134-1146 doi: 10.1007/s11705-020-2014-x

Abstract: Regulation of electronic structure through doping vanadium atoms is a feasible construction strategy

Keywords： hydrogen evolution reaction     transition metal phosphides     pH-universal     vanadium doping     carbon fiber paper    

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Fundamental Research on Vanadium Recovering from V-bearingSteelmaking Slag

Dong Yuanchi,Wu Xingrong,Yu Liang,Li Liaosha

Strategic Study of CAE 2007, Volume 9, Issue 1,   Pages 63-68

Abstract:

The enrichment of vanadium and crystallization and growth of V-concentratingwhen15% SiO2 and 20% Al2O3 are added in slag, respectively, vanadium

Keywords： V-bearing steel slag     enrichment     V-concentrating phase     crystal growth     solid solution    

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Title Author Date Type Operation

Coextraction of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

Journal Article

Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

Journal Article

Highly efficient and selective removal of vanadium from tungstate solutions by microbubble floating-extraction

Journal Article

Characterization and comparison of organic functional groups effects on electrolyte performance for vanadium

Journal Article

Utilization of waste vanadium-bearing resources in the preparation of rare-earth vanadate catalysts for

Journal Article

Vanadium and molybdenum concentrations in particulate from Palermo (Italy): analytical methods using

Diana AMORELLO,Santino ORECCHIO

Journal Article

Vanadium metabolism investigation using substance flow and scenario analysis

Fangfang ZHANG, Huiquan LI, Bo CHEN, Xue GUAN, Yi ZHANG

Journal Article

Synthesis of cobalt vanadium nanomaterials for efficient electrocatalysis of oxygen evolution

Meifeng Hao, Mingshu Xiao, Lihong Qian, Yuqing Miao

Journal Article

Vanadium(IV) solvent extraction enhancement in high acidity using di-(2-ethylhexyl)phosphoric acid with

Journal Article

Engineering the electronic and geometric structure of VO/BN@TiO heterostructure for efficient aerobic oxidative desulfurization

Journal Article

Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic ozonation

Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao

Journal Article

Redox flow batteries—Concepts and chemistries for cost-effective energy storage

Matthäa Verena HOLLAND-CUNZ, Faye CORDING, Jochen FRIEDL, Ulrich STIMMING

Journal Article

Vanadium oxide cathode with synergistic engineering of calcium-ion intercalation and polyaniline coating

Journal Article

Tuning the electronic structure of NiCoP arrays through V doping for pH-universal hydrogen evolution reaction electrocatalyst

Yu Lin, Jinlei Wang, Duanlin Cao, Yaqiong Gong

Journal Article

Fundamental Research on Vanadium Recovering from V-bearingSteelmaking Slag

Dong Yuanchi,Wu Xingrong,Yu Liang,Li Liaosha

Journal Article