Article
Engineering, Chemical
Chunqing Cai, Takafumi Hanada, Adroit T. N. Fajar, Masahiro Goto
Summary: This study reports the development of a novel aqueous biphasic system (ABS) for the selective recovery of critical metals Co(II) and Ni(II) from spent lithium-ion batteries. The ABS successfully separated Co(II), Ni(II), and Mn(II) without the use of hazardous reagents or organic solvents. The mechanism of metal ion separation within the ABS was elucidated, and the regenerated ionic liquid in the ABS exhibited remarkably stable performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Virginia Echavarri-Bravo, Houari Amari, Jennifer Hartley, Giovanni Maddalena, Caroline Kirk, Maarten W. Tuijtel, Nigel D. Browning, Louise E. Horsfall
Summary: Large scale recycling of lithium ion batteries (LIBs) is crucial for obtaining raw materials and implementing clean energy strategies. However, efficient and sustainable recycling methods for LIBs are yet to be developed. This study demonstrates a sequential process using two bacterial species to recover manganese, cobalt, and nickel, while keeping lithium in the leachate. The feasibility of manganese recovery from polymetallic solutions was also shown in a 30 L bioreactor. Additionally, proteomic analysis was used to investigate the selectivity between cobalt and nickel, confirming the potential of a bio-based method for separating these metals.
Article
Energy & Fuels
Jenni Lie, Yu-Chieh Lin, Jhy-Chern Liu
Summary: This study examined the use of subcritical water extraction (SWE) and microwave-assisted extraction (MAE) for leaching valuable and rare earth elements from spent NiMH batteries. Results showed that SWE with 0.5N HCl was most effective, while MAE was the most energy-efficient compared to conventional methods.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Chemistry, Inorganic & Nuclear
Md. Motiur R. Mazumder, Niharika Dalpati, P. Raj Pokkuluri, Byron H. Farnum
Summary: Energy storage plays a crucial role in the implementation of renewable energy resources globally. This study investigated the redox cycle of nickel(II) bis(diethyldithiocarbamate) for its potential use in nonaqueous redox flow batteries. The addition of ZnII to the electrolyte improved the reversibility of the multielectron transfer, leading to higher efficiency in energy storage.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Min Li, Mingshu Zhao, Stefanos Mourdikoudis, Qingyang Zheng, Lidong Jiao, Zhou Su, Mangmang Shi, Qiuwen Wang, Yiming Wu, Sen Yang
Summary: Transition metal phosphate materials, especially bimetallic phosphates, have attracted attention as potential electrode materials for energy storage applications. However, high-capacitance and long-cycle stability phosphate materials are rare in the literature. In this study, novel mesoporous nickel-cobalt phosphate sheets supported on conductive nickel foam were successfully prepared. The resulting material exhibited a high specific capacitance and favorable electrochemical performance. Additionally, it was found that the nickel-cobalt phosphate sheets could also be applied in aqueous supercapacitors and Ni-Zn batteries, showing promising potential for practical applications.
JOURNAL OF POWER SOURCES
(2023)
Article
Environmental Sciences
Sultan Majed Al-Salem
Summary: This study focused on investigating heavy metal concentrations in soil after degrading different types of plastics commonly used in the market. The results showed that leachate from the plastics might contain transferred metals, especially nickel. Concentrations of nickel and chromium exceeded guidelines, indicating the need for remediation. The study also highlighted the importance of proper waste disposal to avoid metal contamination over time.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Maximilian Wessner, Bettina Bommarius, Christoph Brandenbusch, Andreas S. Bommarius
Summary: Enzymes used as biocatalysts have become competitive with classical chemical catalysts in green processes, and aqueous two-phase extraction has been shown as a promising and sustainable alternative for purification. A new method for ATPS design has been demonstrated to rapidly select tailor-made ATPS, outperforming traditional trial-and-error screening approaches.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Jason Constantine, Jenni Lie, Jhy-Chern Liu
Summary: This study successfully recovered rare earth elements from spent nickel-metal hydride (NiMH) batteries using subcritical water extraction (SWE) with citric acid as the leaching reagent. The results showed that leaching efficiency increased with increasing acid concentration, reaction time, and temperature, while it decreased as the solid to liquid ratio (S/L) increased. Selective precipitation with diluted waste phosphoric acid (H3PO4) further enhanced the recovery efficiency.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Rui Wang, Lifan Wang, Yujie Fan, Woochul Yang, Chun Zhan, Guicheng Liu
Summary: This article discusses the possibility of using cobalt-free cathode materials in commercial lithium-ion batteries. Cobalt plays a double-edged role in the cathode, facing challenges of structural degradation, capacity degradation, and thermal instability. Additionally, the high cost and unstable supply of cobalt are limiting factors. Research on cobalt-free cathode materials is important for reducing costs and improving battery performance.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Min Jiang, Yunfeng Zhu, Yana Liu, Jiguang Zhang, Yao Zhang, Yicheng Sun, Peng Zeng, Jie Hou, Yuke Ren, Zhixin Ba, Liquan Li
Summary: Ni-Co LDHs were synthesized with different Ni/Co molar ratios and used as cathode materials for Ni-MH batteries. Compared with Ni(OH)2, Ni-Co LDHs electrodes exhibited higher discharge capacity and cycling stability. The NC 2 electrode with a Ni/Co molar ratio of 4:1 showed the highest discharge capacity and capacity retention after 200 cycles. The unique morphology and enlarged interlayer spacing of Ni-Co LDHs promoted ion transmission and charge transfer, while their structural stability and synergies with Co-Co LDHs were important for electrochemical performances.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Jenni Lie, Jhy-Chern Liu
Summary: The study investigated selective recovery of rare earth elements (REEs) from spent nickel metal hydride (NiMH) batteries using a two-stage acid leaching process followed by precipitation at acidic pH. The process involved conventional leaching followed by subcritical water extraction (SWE) using sulfuric acid, achieving 100% leaching efficiency of REEs, Ni, Co, and Mn. Selective precipitation of REEs was then achieved at low pH, resulting in successful recovery of La, Ce, and Nd. This study provides an alternative method for selectively recovering REEs from e-waste.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Jiaxu Gong, Weige Luo, Yang Zhao, Mingzhen Xie, Jiaheng Wang, Junxiao Yang, Yatang Dai
Summary: A facile method for high-performance electrode materials for alkaline aqueous batteries is reported in this study, which shows outstanding electrochemical performance and solves the issue of low capacity of anode material in alkaline electrolytes. The mechanism of the influence of surface coating on electrode material performance is revealed. The assembled flexible battery exhibits excellent energy storage performance and potential applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Multidisciplinary Sciences
Fatemeh Badihi, Ali Haghighi Asl, Mehdi Asadollahzadeh, Rezvan Torkaman
Summary: This study used non-aqueous solvent extraction to extract cobalt from zinc plant residue. Ethylene glycol, LiCl, and metal ions were used as the aqueous phase, while D2EHPA, Cyanex272, Cyanex301, and Cyanex302 were used as less polar organic phases in kerosene. The results showed that Cyanex301 could achieve the required extraction efficiency in kerosene at a concentration of 0.05 M. The optimal conditions were Cyanex301 concentration of 0.05 M, cobalt concentration of 833 ppm, pH of 3.5, and 80% ethylene glycol. These systems are recommended for extracting and separating various metal ions during the leaching process.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Yanhong Li, Qifeng Zhang, Zhiting Song, Kai Shu, Zize Yang, Hongming Hu, Yi Lu, Xiao Tang, Xianju Zhou
Summary: This study focuses on the synthesis of (Ni,Co)Se2@N-doped carbon materials with different morphologies using chemical etching method and investigates their morphology, electronic structure, and electrochemical performance. The results demonstrate that chemical etching can enhance the proportion of metal ions with low oxidation states and reduce the surface nickel and cobalt species, leading to improved reversibility and reaction kinetics. Moreover, assembling an alkaline battery with these materials as electrodes achieves high specific capacity and energy density.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Lei Mao, Xun Zhao, Yang Li, Lingyun Chen
Summary: Transition metal carbonate hydroxides are promising candidates for electrode materials in supercapattery. Tailoring the chemical compositions and nanostructures can lead to high-performance electrode materials that meet the demand for electrical energy storage devices.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Flavia Cristina de Barros, Christian Silva Abreu, Leandro Rodrigues de Lemos
Summary: The study successfully utilized ATPS to extract Cu(II) and Cd(II) while concentrating zinc (II) in the bottom phase.
SEPARATION SCIENCE AND TECHNOLOGY
(2021)
Review
Chemistry, Analytical
Roberta C. Assis, Aparecida B. Mageste, Leandro R. de Lemos, Ricardo M. Orlando, Guilherme D. Rodrigues
Summary: This review discusses how aqueous two-phase systems (ATPS) can efficiently extract, pre-concentrate, and clean-up analytes in aqueous samples to determine compounds classified as emerging contaminants (ECs). ATPS is an alternative to conventional liquid-liquid extraction techniques, predominantly composed of water and based on the principles of green chemistry. This simple and low environmental impact technique has been successfully employed for the analysis of different classes of emerging contaminants.
Article
Engineering, Chemical
Silvia Juliana Barros e Silva, Gabriel Max Dias Ferreira, Heyder Pereira Neves, Leandro Rodrigues de Lemos, Guilherme Dias Rodrigues, Aparecida Barbosa Mageste
Summary: The use of aqueous two-phase systems for the extraction/speciation of arsenic has gained attention, with a focus on the partitioning of arsenic species in new systems formed by Triton X nonionic surfactant and choline chloride ionic liquid. In the absence of the extracting agent, arsenic species were mainly transferred to the choline chloride-rich phase, while in the presence of APDC, As(V) and DMA remained in the choline chloride-rich phase and As(III) was transferred to the surfactant-rich phase. The Triton X + choline chloride + water systems showed potential for environmentally friendly extraction, preconcentration, and speciation of arsenic.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Brunna D'Onofre Couto, Rayla Novaes da Costa, Wilquer Castro Laurindo, Heriveltom Moraes da Silva, Cinthia Rocha da Silva, Jane Selia dos Reis Coimbra, Aparecida Barbosa Mageste, Sandra de Cassia Dias, Igor Jose Boggione Santos
Summary: This study aimed to optimize the production of beta-lactoglobulin nanostructures, characterize their techno-functional properties and stability, and apply them as carriers for bioactive molecules. The results showed that the beta-lg nanostructures have a great capacity to encapsulate hydrophobic molecules and form stable foam and emulsions.
Article
Chemistry, Physical
Matheus Torres Duarte Figueiredo, Melany Alejandra Ruiz Lopez, Heyder Pereira Neves, Aparecida Barbosa Mageste, Guilherme Max Dias Ferreira, Gabriel Max Dias Ferreira
Summary: The study found that in ATPS formed at different temperatures, the lower phase is rich in salt while the upper phase is rich in surfactant, with surprisingly high salt concentrations in the upper phase. The size of the biphasic region depended on the salt cation, and increased with temperature, while ATPSs formed by thiocyanate salts showed smaller biphasic regions due to the low salting-out capacity of the thiocyanate anion.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Analytical
Junielly Tomaz Domingues, Ricardo Mathias Orlando, Mariana Ramos Almeida, Leandro Rodrigues de Lemos, Aparecida Barbosa Mageste, Guilherme Dias Rodrigues
Summary: This study presented an environmentally friendly method for extracting steroid hormones using an aqueous two-phase system, demonstrating the feasibility of organic solvent-free liquid-liquid extraction for determining hormone levels in environmental samples. By optimizing experimental conditions such as pH value, electrolyte nature, and temperature, a novel approach for hormone recovery was established, showing promising results in terms of partition coefficients. The aqueous two-phase system proved to be an innovative and effective technique for extracting hormones in environmental samples.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Alicio Wagner Vieira, Keycianne da Cruz Silva, Aparecida Barbosa Mageste, Guilherme Dias Rodrigues, Leandro Rodrigues de Lemos
Summary: This study characterized new ATPS formed by PVP10K with different salts and water, with findings showing that temperature and pH had minimal influence on the phase region, sodium sulfate was more efficient than zinc sulfate, and the partition of lycopene in ATPS was driven enthalpically.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Chemical
Heyder Pereira Neves, Gabriel Max Dias Ferreira, Guilherme Max Dias Ferreira, Leandro Rodrigues de Lemos, Guilherme Dias Rodrigues, Versiane Albis Leao, Aparecida Barbosa Mageste
Summary: Rare earth elements are becoming increasingly important in high technology industries globally, leading to a search for more environmentally friendly processes for their production. Cloud point extraction and aqueous two-phase systems are alternatives to traditional organic solvents for the extraction and separation of rare earth elements.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Tayrine Silva Fernandes, Gabriel Max Dias Ferreira, Gilmare Antonia da Silva, Igor Jose Boggione Santos, Aparecida Barbosa Mageste
Summary: A green and sustainable method using aqueous solutions of poly(ethylene glycol) (PEG) has been developed to extract anthocyanins from broken black rice. The extracted anthocyanin showed high stability and potential for direct application in industrial products. The method was also effective in extracting anthocyanins from the husk and bran of black rice, offering advantages of efficiency, simplicity, and low cost.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Christian Silva Abreu, Dilaine Suellen Caires Neves, Vinicius Azevedo Gomes, Aparecida Barbosa Mageste, Guilherme Dias Rodrigues, Leandro Rodrigues de Lemos
Summary: In this study, an A3PS consisting of PVP, PEG, Li2SO4, and water was characterized. The distribution of each component in different phases was determined, and the effects of composition and temperature on the tie-plane area (TPA) were investigated. The partition behavior of HE-4R dye molecules and Cu(II) ions in various phases was observed, and the temperature-induced phase inversion phenomenon was studied.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Applied
Dilaine Suellen Caires Neves, Anderson Santos Souza, Leandro Rodrigues de Lemos
Summary: This study proposes a new method for the determination of vanadium in food samples using an aqueous two-phase system. By applying multivariate analysis and Box-Behnken matrix, the significant variables and critical points for extraction were defined. The developed methodology showed accurate and efficient results, with detection limits of 0.0220 μg/kg and quantification limits of 0.665 μg/kg.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Metallurgy & Metallurgical Engineering
Arsyad Maulana Dzulqornain, Ana Belen Cueva-Sola, Kyeong Woo Chung, Jin-Young Lee, Rajesh Kumar Jyothi
Summary: This study presents a hydrometallurgical process for the separation of light rare earth elements (LREEs) using oxidation, precipitation, solvent extraction, and stripping techniques. Selective oxidation with potassium permanganate was employed for the separation of cerium (III). Solvent extraction with Cyanex 572 and cross-current scrubbing were used to achieve the separation of lanthanum (III) from neodymium (III) and praseodymium (III).
Article
Metallurgy & Metallurgical Engineering
Bo Chen, Shenxu Bao, Yimin Zhang
Summary: This study investigated the effects of Al, Fe, P, Si and Na on the precipitation characteristics of vanadium in the ultrasound precipitation system. The concentration upper limits and the negative influence on the precipitation kinetics were determined for each impurity. The findings provide theoretical and technical support for the industrial application of ultrasound precipitation technology.
Article
Metallurgy & Metallurgical Engineering
Chunlin He, Mingwei Qi, Yun Liu, Zunzhang Liu, Yuezhou Wei, Toyohisa Fujita, Guifang Wang, Shaojian Ma, Wenchao Yang, Junyuan Gan
Summary: In this study, D201 x 7 resin and tartaric acid were used as materials and complexing agents for the separation of germanium from sulfuric acid solution. The study successfully achieved the separation of germanium and demonstrated the high selectivity and adsorption performance of the resin.
Article
Metallurgy & Metallurgical Engineering
Xiaobo Zhu, Yue Liu, Chen Ma, Wang Li
Summary: A selective and highly effective method for the extraction and separation of V(IV) and Fe(III) using N235 and P507 as solvent extractants is proposed. The pH, composition, and concentration of the extractant mixture have significant effects on the extraction efficiency and separation factor. The mixing of P507 and N235 generates the P507 monomer, which enhances the extraction efficiency and weakens the stability of vanadium containing extraction complex. Cation exchange process forms the extraction complexes.
Article
Metallurgy & Metallurgical Engineering
B. Behnajady, J. Yousefi Seyf, S. Karimi, M. Moradi, M. Sohrabi
Summary: Deep eutectic solvents (DES) have potential as environmentally-friendly solvents for recovering metals from spent lithium-ion batteries (LIBs). Experimental and molecular dynamics simulation results showed that the chloride ions in DES can form complexes with lithium, manganese, and nickel ions, facilitating their extraction.
Review
Metallurgy & Metallurgical Engineering
Sebastian Kinas, Dorota Jermakowicz-Bartkowiak, Anna Dzimitrowicz, Piotr Cyganowski
Summary: The high demand for platinum-group metals (PGMs) and Re in economical and industrial applications related to environmental protection and energy conversion/storage has led to resource scarcity. Thus, it is crucial to recover and recycle these rare metals. This study critically reviews the recent progress in the effective recovery of PGMs and Re from materials relevant to sustainable technologies, emphasizing practical aspects, environmental impact, and issues related to the unit processes of recovery.
Article
Metallurgy & Metallurgical Engineering
Guopeng Yang, Qinggang Li, Guiqing Zhang, Mingyu Wang, Zuoying Cao, Wenjuan Guan, Jiawei Du, Shengxi Wu
Summary: The study proposes an efficient, clean, and economical process for recovering V2O5 from titanium-white waste through hydrogen peroxide stripping and precipitation of vanadium products by heating. Experimental results show that the use of D2EHPA as a modifier prolongs the duration of maximum stripping efficiency, enabling continuous operation.
Article
Metallurgy & Metallurgical Engineering
Guisu Yu, Shuainan Ni, Yun Gao, Ditang Mo, Zhiyuan Zeng, Xiaoqi Sun
Summary: This research proposes a novel green process for the selective recovery of rare earth elements (RE) from spent NdFeB permanent magnet using hydrophobic deep eutectic solvent (HDES). Through optimization of extraction conditions and stripping method, efficient and clean separation and recovery have been achieved.
Article
Metallurgy & Metallurgical Engineering
Jia Li, Xinsheng Wu, Xiaozhou Zhou, Li Zeng, Shengxi Wu, Mingyu Wang, Wenjuan Guan, Zuoying Cao, Qinggang Li, Guiqing Zhang
Summary: This paper presents a complete hydrometallurgical route for the full-component utilization of deep-sea polymetallic nodules (DPN), achieving high recovery efficiency and near-zero waste production with low energy consumption.
Article
Metallurgy & Metallurgical Engineering
Sanae Elmisaoui, Abderrazak M. Latifi, Lhachmi Khamar
Summary: A first principles model is developed to describe the dissolution mechanism of phosphate ore particles in a solution of phosphoric acid. The model accounts for non-uniform size of ore particles using particle size distributions and quantifies their influence on the model predictions. A global estimability analysis is carried out to determine the estimable parameters from experimental data, and the predictions show good agreement with the experimental data. The computed activation energy indicates that diffusion is the rate limiting step of the dissolution process.
