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Hassan N, Sanfui MH, Chowdhury D, Roy S, Ghosh NN, Rahaman M, Chang M, Hasnat MA, Chattopadhyay PK, Singha NR. Synthesis of Intrinsically-Fluorescent Aliphatic Tautomeric Polymers for Proton-Conductivity, Dual-State Emission, and Sensing/Oxidation-Reduction of Metal Ions. Macromol Rapid Commun 2024:e2400363. [PMID: 38950314 DOI: 10.1002/marc.202400363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 06/15/2024] [Indexed: 07/03/2024]
Abstract
Herein, fluorescent conducting tautomeric polymers (FCTPs) are developed by polymerizing 2-methylprop-2-enoic acid (MPEA), methyl-2-methylpropenoate (MMP), N-(propan-2-yl)prop-2-enamide (PPE), and in situ-anchored 3-(N-(propan-2-yl)prop-2-enamido)-2-methylpropanoic acid (PPEMPA). Among as-synthesized FCTPs, the most promising characteristics in FCTP3 are confirmed by NMR and Fourier transform infrared (FTIR) spectroscopies, luminescence enhancements, and computational studies. In FCTP3, ─C(═O)NH─, -C(═O)N<, ─C(═O)OH, and ─C(═O)OCH3 subluminophores are identified by theoretical calculations and experimental analyses. These subluminophores facilitate redox characteristics, solid state emissions, aggregation-enhanced emissions (AEEs), excited-state intramolecular proton transfer (ESIPT), and conductivities in FCTP3. The ESIPT-associated dual emission/AEEs of FCTP3 are elucidated by time correlated single photon counting (TCSPC) investigation, solvent polarity effects, concentration-dependent emissions, dynamic light scattering (DLS) measurements, field emission scanning electron microscopy images, and computational calculations. The cyclic voltammetry measurements of FCTP3 indicate cumulative redox efficacy of ─C(═O)OH, ─C(═O)NH─/-C(═O)N<, ─C(─O─)═NH+─/─C(─O─)═N+, and ─C(═N)OH functionalities. In FCTP3, ESIPT-associated dual-emission enable in the selective detection of Cr(III)/Cu(II) at λem1/λem2 with the limit of detection of 0.0343/0.079 ppb. The preferential interaction of Cr(III)/Cu(II) with FCTP3 (amide)/FCTP3 (imidol) and oxidation/reduction of Cr(III)/Cu(II) to Cr(VI)/Cu(I) are further supported by NMR-titration; FTIR and X-ray photoelectron spectroscopy analyses; TCSPC/electrochemical/DLS measurement; alongside theoretical calculations. The proton conductivity of FCTP3 is explored by electrochemical impedance spectroscopy and I-V measurements.
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Affiliation(s)
- Nadira Hassan
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Md Hussain Sanfui
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Deepak Chowdhury
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Shrestha Roy
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | | | - Mostafizur Rahaman
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, P.O. Box 2455, Saudi Arabia
| | - Mincheol Chang
- Department of Polymer Engineering, Graduate School, Chonnam National University, Gwangju, 61186, South Korea
| | - Mohammad A Hasnat
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Pijush Kanti Chattopadhyay
- Department of Leather Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
| | - Nayan Ranjan Singha
- Advanced Polymer Laboratory, Department of Polymer Science and Technology, Government College of Engineering and Leather Technology (Post Graduate), Maulana Abul Kalam Azad University of Technology, Salt Lake City, Kolkata, West Bengal, 700106, India
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2
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Zhuang S, Chen D, Ng WP, Liu D, Liu LJ, Sun MY, Nawaz T, Wu X, Zhang Y, Li Z, Huang YL, Yang J, Yang J, He J. Phosphinous Acid-Phosphinito Tetra-Icosahedral Au 52 Nanoclusters for Electrocatalytic Oxygen Reduction. JACS AU 2022; 2:2617-2626. [PMID: 36465536 PMCID: PMC9709937 DOI: 10.1021/jacsau.2c00517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
While the formation of superatomic nanoclusters by the three-dimensional assembly of icosahedral units was predicted in 1987, the synthesis and structural determination of such clusters have proven to be incredibly challenging. Herein, we employ a mixed-ligand strategy to prepare phosphinous acid-phosphinito gold nanocluster Au52(HOPPh2)8(OPPh2)4(TBBT)16 with a tetra-icosahedral kernel. Unlike expected, each icosahedral Au13 unit shares one vertex gold atom with two adjacent units, resulting in a "puckered" ring shape with a nuclearity of 48 in the kernel. The phosphinous acid-phosphinito ligand set, which consists of two phosphinous acids and one phosphinito motif, has strong intramolecular hydrogen bonds; the π-π stacking interactions between the phosphorus- and sulfur-based ligands provide additional stabilization to the kernel. Highly stable Au52(HOPPh2)8(OPPh2)4(TBBT)16 serves as an effective electrocatalyst in the oxygen reduction reaction. Density functional theory calculations suggest that the phosphinous acid-phosphinito ligands provide the most active sites in the electrochemical catalysis, with O* formation being the rate-determining step.
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Affiliation(s)
- Shengli Zhuang
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- State
Key Laboratory of Synthetic Chemistry, The
University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
| | - Dong Chen
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Wai-Pan Ng
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Dongyi Liu
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Li-Juan Liu
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Meng-Ying Sun
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Tehseen Nawaz
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Xia Wu
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Yao Zhang
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Zekun Li
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Yong-Liang Huang
- Department
of Medicinal Chemistry, Shantou University
Medical College, Shantou, Guangdong 515041, P. R. China
| | - Jun Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Jun Yang
- State
Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jian He
- Department
of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
- State
Key Laboratory of Synthetic Chemistry, The
University of Hong Kong, Pokfulam Road, Hong Kong 999077, P. R. China
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3
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Shamsipur M, Taherpour A(A, Sharghi H, Lippolis V, Pashabadi A. A low-overpotential nature-inspired molecular chromium water oxidation catalyst. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.202] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Xue Y, Zheng S, Sun Z, Zhang Y, Jin W. Alkaline electrochemical advanced oxidation process for chromium oxidation at graphitized multi-walled carbon nanotubes. CHEMOSPHERE 2017; 183:156-163. [PMID: 28544901 DOI: 10.1016/j.chemosphere.2017.05.115] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/18/2017] [Accepted: 05/19/2017] [Indexed: 05/12/2023]
Abstract
Alkaline electrochemical advanced oxidation processes for chromium oxidation and Cr-contaminated waste disposal were reported in this study. The highly graphitized multi-walled carbon nanotubes g-MWCNTs modified electrode was prepared for the in-situ electrochemical generation of HO2-. RRDE test results illustrated that g-MWCNTs exhibited much higher two-electron oxygen reduction activity than other nanocarbon materials with peak current density of 1.24 mA cm-2, %HO2- of 77.0% and onset potential of -0.15 V (vs. Hg/HgO). It was originated from the highly graphitized structure and good electrical conductivity as illustrated from the Raman, XRD and EIS characterizations, respectively. Large amount of reactive oxygen species (HO2- and ·OH) were in-situ electro-generated from the two-electron oxygen reduction and chromium-induced alkaline electro-Fenton-like reaction. The oxidation of Cr(III) was efficiently achieved within 90 min and the conversion ratio maintained more than 95% of the original value after stability test, offering an efficient and green approach for the utilization of Cr-containing wastes.
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Affiliation(s)
- Yudong Xue
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shili Zheng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Zhi Sun
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Yi Zhang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Wei Jin
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
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5
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Su J, Lin X, Zheng S, Ning R, Lou W, Jin W. Mass transport-enhanced electrodeposition for the efficient recovery of copper and selenium from sulfuric acid solution. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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6
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Xue Y, Wang Y, Zheng S, Sun Z, Zhang Y, Jin W. Efficient oxidative dissolution of V2O3 by the in situ electro-generated reactive oxygen species on N-doped carbon felt electrodes. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Xue Y, Jin W, Du H, Wang S, Zheng S, Zhang Y. Tuning α-Fe2O3 nanotube arrays for the oxygen reduction reaction in alkaline media. RSC Adv 2016. [DOI: 10.1039/c6ra06422a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
α-Fe2O3 nanotube arrays were fabricated and employed as low cost non-noble electrocatalysts for the oxygen reduction reaction (ORR). As-prepared α-Fe2O3 nanotube arrays exhibit excellent ORR catalytic activity and durability in alkaline media.
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Affiliation(s)
- Yudong Xue
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Wei Jin
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Hao Du
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Shaona Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Shili Zheng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
| | - Yi Zhang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
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9
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Qian A, Yuan S, Zhang P, Tong M. A New Mechanism in Electrochemical Process for Arsenic Oxidation: Production of H2O2 from Anodic O2 Reduction on the Cathode under Automatically Developed Alkaline Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:5689-5696. [PMID: 25853500 DOI: 10.1021/acs.est.5b00808] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Electrochemical cathodes are often used to reduce contaminants or produce oxidizing substances (i.e., H2O2). Alkaline conditions develop automatically around the cathode in electrochemical processes, and O2 diffuses onto the cathode easily. However, limited attention is paid to contaminant transformation by the reactive species produced on the cathode under oxic and alkaline conditions due to the inapplicability of pH for Fenton reaction. In this study, a new oxidation mechanism on the cathode is presented for contaminant transformation under automatically developed alkaline conditions. In an electrochemical sand column, 6.67 μM As(III) was oxidized by 36% when it passed through the cathode under the conditions of 30 mA current, an initial pH of 7.5 and a flow rate of 2 mL/min. Under the alkaline conditions (pH 10.0-11.0) that developed automatically around the cathode, the reduction potential of As(III) decreased greatly, allowing a pronounced oxidation by the small quantities of H2O2 produced from O2 reduction on the cathode. As(III) oxidation was further increased by the presence of soil pore water and groundwater solutes of HCO3-, Ca2+, Mg2+ and humic acid. The new oxidation mechanism found for the cathode under localized alkaline conditions supplements the fundamentals of contaminant transformation in electrochemical processes.
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Affiliation(s)
- Ao Qian
- †State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
- ‡School of Environmental Studies, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Songhu Yuan
- †State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
- ‡School of Environmental Studies, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Peng Zhang
- †State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
| | - Man Tong
- †State Key Lab of Biogeology and Environmental Geology, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
- ‡School of Environmental Studies, China University of Geosciences, 388 Lumo Road, Wuhan, 430074, P. R. China
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10
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The influence of KOH concentration, oxygen partial pressure and temperature on the oxygen reduction reaction at Pt electrodes. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.12.044] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Manganese oxide nanoflakes/multi-walled carbon nanotubes/chitosan nanocomposite modified glassy carbon electrode as a novel electrochemical sensor for chromium (III) detection. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.12.146] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Jin W, Laforest PI, Luyima A, Read W, Navarro L, Moats MS. Electrolytic recovery of bismuth and copper as a powder from acidic sulfate effluents using an emew® cell. RSC Adv 2015. [DOI: 10.1039/c5ra08318d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Effective removal of bismuth is a primary concern during copper electrorefining.
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Affiliation(s)
- Wei Jin
- Materials Research Center
- Missouri University of Science and Technology
- Rolla
- USA
| | - Paul I. Laforest
- Materials Research Center
- Missouri University of Science and Technology
- Rolla
- USA
| | - Alex Luyima
- Materials Research Center
- Missouri University of Science and Technology
- Rolla
- USA
| | | | | | - Michael S. Moats
- Materials Research Center
- Missouri University of Science and Technology
- Rolla
- USA
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13
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Abstract
The recent achievements and future directions in electrochemical quantification of toxic hexavalent chromium were outlined.
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Affiliation(s)
- Wei Jin
- Materials Research Center
- Missouri University of Science and Technology
- Rolla
- USA
| | - Kai Yan
- School of Engineering
- Brown University
- Providence
- USA
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14
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Jin W, Zhang Z, Wu G, Tolba R, Chen A. Integrated lignin-mediated adsorption-release process and electrochemical reduction for the removal of trace Cr(vi). RSC Adv 2014. [DOI: 10.1039/c4ra01222d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hexavalent chromium Cr(vi) is extremely toxic and is classified as a human carcinogen, even at trace concentrations.
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Affiliation(s)
- Wei Jin
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
| | - Zhaoyang Zhang
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
| | - Guosheng Wu
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
| | - Rasha Tolba
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
| | - Aicheng Chen
- Department of Chemistry
- Lakehead University
- Thunder Bay, Canada
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Jin W, Tolba R, Wen J, Li K, Chen A. Efficient extraction of lignin from black liquor via a novel membrane-assisted electrochemical approach. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.06.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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