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Wu X, Liao J, Yin X, Liu J, Wu S, Wu X, Xie Z, Ling W. Effect of phosphoric acid additive on the electrolyte of all-vanadium flow batteries. Chem Commun (Camb) 2024; 60:2906-2909. [PMID: 38363097 DOI: 10.1039/d3cc06298h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
A phosphoric acid additive with an optimal concentration of 0.1 M can vastly promote the diffusion kinetics of the redox reaction between V(IV) and V(V) without a significant decline in energy efficiency for 300 cycles, and maintain the high-temperature stability (55 °C) of an electrolyte at a high state of charge (SOC) of 70% over the course of 30 days.
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Affiliation(s)
- Xuewen Wu
- State Key Laboratory of Powder Metallurgy & Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha 410083, China.
- Hunan Province YinFeng New Energy Co., Ltd., Changsha 410000, China.
| | - Jingjing Liao
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China.
| | - Xingrong Yin
- Hunan Province YinFeng New Energy Co., Ltd., Changsha 410000, China.
| | - Jun Liu
- Hunan Province YinFeng New Energy Co., Ltd., Changsha 410000, China.
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China.
| | - Saixiang Wu
- Hunan Province YinFeng New Energy Co., Ltd., Changsha 410000, China.
| | - Xiongwei Wu
- Hunan Province YinFeng New Energy Co., Ltd., Changsha 410000, China.
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China.
| | - Zhiyong Xie
- State Key Laboratory of Powder Metallurgy & Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha 410083, China.
| | - Wei Ling
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China.
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Qin W, Han X, Wang J, Wang X, Zhang J. Selectivity of novel PAMAM dendrimers modified with salicylaldehyde and their extraction/separation performance on Zr(Ⅳ) and Hf(Ⅳ). J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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3
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Mossand G, Lelong E, Xing C, Ndebulia Watchou F, Leydier A, Arrachart G, Pellet-Rostaing S. Bis-Catecholamide-Based Materials for Uranium Extraction. Chempluschem 2022; 88:e202200412. [PMID: 36638257 DOI: 10.1002/cplu.202200412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/21/2022] [Indexed: 12/24/2022]
Abstract
This work reports the synthesis of formo-phenolic resins containing four catecholamide (CAM) moieties with admixture of phenol, catechol or resorcinol. These chelating resins have been developed to selectively extract U(VI) from seawater. This media is a challenging environment due to a pH around 8.2 and a large excess of alkaline and earth-alkaline cations. From the various sorption experiments investigated, the results indicate that the synthesized material exhibit good sorbent properties for U(VI) with uptake capacity about 50 mg/g for the more promising resins with a pronounced selectivity for uranium even under saline conditions. Thermodynamic and kinetic adsorption data were determined for the best resin (Langmuir adsorption model and pseudo-second order model).
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Affiliation(s)
- Guillaume Mossand
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, 30207, Bagnols sur Cèze Cedex, France
| | - Evan Lelong
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, 30207, Bagnols sur Cèze Cedex, France
| | - Chen Xing
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, 30207, Bagnols sur Cèze Cedex, France
| | | | - Antoine Leydier
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, 30207, Bagnols sur Cèze Cedex, France
| | - Guilhem Arrachart
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, 30207, Bagnols sur Cèze Cedex, France
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Jakóbik-Kolon A, Bok-Badura J. Stripping of hafnium and zirconium from chelating ion-exchange resin. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Mekawy ZA, El Shazly EAA, Mahmoud MR. Utilization of bentonite as a low-cost adsorbent for removal of 95Zr(IV), 181Hf(IV) and 95Nb(V) radionuclides from aqueous solutions. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08432-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Terephthalaldehyde-Phenolic Resins as a Solid-Phase Extraction System for the Recovery of Rare-Earth Elements. Polymers (Basel) 2022; 14:polym14020311. [PMID: 35054717 PMCID: PMC8780303 DOI: 10.3390/polym14020311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 12/10/2022] Open
Abstract
Rare-earth elements (REEs) are involved in most high technology devices and have become critical for many countries. The progress of processes for the extraction and recovery of REEs is therefore essential. Liquid–solid extraction methods are an attractive alternative to the conventional solvent extraction process used for the separation and/or purification of REEs. For this purpose, a solid-phase extraction system was investigated for the extraction and valorization of REEs. Ion-exchange resins were synthesized involving the condensation of terephthalaldehyde with resorcinol under alkaline conditions. The terephthalaldehyde, which is a non-hazardous aromatic dialdehyde, was used as an alternative to formaldehyde that is toxic and traditionally involved to prepare phenolic ion-exchange resins. The resulting formaldehyde-free resole-type phenolic resins were characterized and their ion-exchange capacity was investigated in regard to the extraction of rare-earth elements. We herein present a promising formaldehyde and phenol-free as a potential candidate for solid–liquid extraction REE with a capacity higher than 50 mg/g and the possibility to back-extract the REEs by a striping step using a 2 M HNO3 solution.
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Qin W, Xu K, Wang J, Cui X, Zhang J, Weng Y. Phosphorous-functionalized PAMAM dendrimers supported on mesoporous silica for Zr(iv) and Hf(iv) separation. RSC Adv 2021; 11:34754-34765. [PMID: 35494761 PMCID: PMC9042711 DOI: 10.1039/d1ra05781b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/06/2021] [Indexed: 11/21/2022] Open
Abstract
To overcome the urgency of zirconium and hafnium separation, a novel mesoporous silica sorbent (PS-G1.0-MSNs) modified with phosphorous-functionalized G1.0 PAMAM dendrimers was prepared. The adsorption and separation behaviors of PS-G1.0-MSNs adsorbent on Zr(iv) and Hf(iv) were perfromed as a function of acidity, contact time, temperature, and ion concentrations by batch sorption methods. The maximum adsorption capacities for Zr(iv) and Hf(iv) were 25.7 mg g−1 and 5.36 mg g−1 under optimal experimental conditions, respectively, and the separation factor βHf/Zr = 2.0 > 1 demonstrated that the prepared sorbent had preferential selectivity for Hf(iv) in rich Zr(iv) solution. Moreover, kinetic data indicated that the sorption process on Zr(iv) and Hf(iv) achieved equilibrium within 120 min, and followed the pseudo-first-order model with a rate-determining step. The adsorption amount increased as temperature raised from 283 K to 303 K and the isothermal data plotted with the Langmuir model was better than the Freundlich model with monolayer behavior. Thermodynamic data analysis indicated that the sorption process was spontaneous and endothermic. Furthermore, XPS analysis revealed that the metal ion adsorption was mainly induced by the chemical coordination of Zr(iv) and Hf(iv) ions with N, O, P atoms of amide and phosphate groups. The present work provides good guidelines on the design of high efficient sorbent for the separation of Hf(iv) from Zr(iv) solutions. The adsorption and separation process of PS-G1.0-MSNs on Zr(iv) and Hf(iv).![]()
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Affiliation(s)
- Wei Qin
- Anhui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University Anqing 246011 China +86-556-5708017
| | - Kaixuan Xu
- Anhui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University Anqing 246011 China +86-556-5708017
| | - Junwei Wang
- Anhui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University Anqing 246011 China +86-556-5708017
| | - Xiaofeng Cui
- Anhui Province Key Laboratory of Optoelectronic and Magnetism Functional Materials, Anqing Normal University Anqing 246011 China +86-556-5708017
| | - Jianli Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University Yinchuan 750021 China
| | - Yaqing Weng
- Jiangxi Academy of Sciences Nanchang 330012 China
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Bertoli AC, Miguita AGC, Mingote RM, Augusti R, Duarte HA. Unveiling the Zirconium and Hafnium Speciation in Fluoride‐Nitric Acid Solutions by Paper Spray Ionization Mass Spectrometry Combined with DFT Calculations. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alexandre C. Bertoli
- Grupo de Pesquisa em Química Inorgânica Teórica (GPQIT) Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Ana Gabriella C. Miguita
- Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Raquel M. Mingote
- Centro de Desenvolvimento da Tecnologia Nuclear – CDTN Av. Pres. Antônio Carlos, 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Rodinei Augusti
- Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
| | - Hélio A. Duarte
- Grupo de Pesquisa em Química Inorgânica Teórica (GPQIT) Departamento de Química Universidade Federal de Minas Gerais – UFMG Av. Pres. Antônio Carlos 6627 Pampulha, Belo Horizonte MG, 31270-901 Brazil
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