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Yu T, Li S, Li F, Zhang L, Wang Y, Sun J. In-situ synthesized and induced vertical growth of cobalt vanadium layered double hydroxide on few-layered V 2CT x MXene for high energy density supercapacitors. J Colloid Interface Sci 2024; 661:460-471. [PMID: 38308886 DOI: 10.1016/j.jcis.2024.01.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
Two-dimensional (2D) MXene nanomaterials display great potential for green energy storage. However, as a result of self-stacking of MXene nanosheets and the presence of conventional binders, MXene-based nanomaterials are significantly hindered in their rate capability and cycling stability. We successfully constructed a self-supported stereo-structured composite (TMA-V2CTx/CoV-LDH/NF) by in-situ growing 2D cobalt vanadium layered double hydroxide (CoV-LDH) vertically on 2D few-layered V2CTx MXene nanosheets and interconnecting it with Ni foam (NF) with a self-supported structure to act as a binder-free electrode. In addition to inhibiting CoV-LDH aggregation, the highly conductive V2CTx MXene and CoV-LDH work synergistically to improve charge storage. The specific capacitance of the TMA-V2CTx/CoV-LDH/NF electrode is 2374 F/g (1187 C/g) at 1 A/g. At the same time, the TMA-V2CTx/CoV-LDH/NF exhibits excellent stability, retaining 85.3 % of its specific capacitance at 20 A/g after 10,000 cycles. In addition, the hybrid supercapacitor (HSC) is assembled based on positive electrode (TMA-V2CTx/CoV-LDH/NF) and negative electrode (AC), achieving the maximum energy density of 74.4 Wh kg-1 at 750.3 W kg-1. TMA-V2CTx/CoV-LDH/NF has potential as an electrode material for storing green energy. The research strategy provides a development prospect for the construction of novel V2CTx MXene-based electrode material with self-supported structures.
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Affiliation(s)
- Tingting Yu
- Key Laboratory of Polymeric Composite Materials of Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China
| | - Shaobin Li
- Key Laboratory of Polymeric Composite Materials of Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China; College of Materials Science and Engineering, Advanced Inorganic Function Composites Research Laboratory, Qiqihar University, Qiqihar 161006, China.
| | - Fengbo Li
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Li Zhang
- Key Laboratory of Polymeric Composite Materials of Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China; College of Materials Science and Engineering, Advanced Inorganic Function Composites Research Laboratory, Qiqihar University, Qiqihar 161006, China.
| | - Yuping Wang
- Key Laboratory of Polymeric Composite Materials of Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China
| | - Jingyu Sun
- Key Laboratory of Polymeric Composite Materials of Heilongjiang Province, College of Materials Science and Engineering, Qiqihar University, Qiqihar 161006, China
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Lee KM, Joo H, Park EJ, Kim J, Lee Y, Yoon J, Lee C. Electrochemical production of hydroxylamine from nitrate on metal electrodes: A comparative study of selectivity and efficiency. Chemosphere 2024; 353:141537. [PMID: 38408568 DOI: 10.1016/j.chemosphere.2024.141537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Despite the great potential of electrochemical nitrate reduction as a hydroxylamine production method, this strategy has not been sufficiently examined, and the effects of electrode material type on the selectivity and efficiency of this reduction remain underexplored. To bridge this gap, the present study evaluated six metals (Ag, Cu, Ni, Sn, Ti, and Zn) as cathode materials for the electrochemical reduction of nitrate to hydroxylamine, showing that the selectivity of hydroxylamine production was maximal for Sn, while the corresponding faradaic and energy utilization efficiencies were maximal for Ti. Although all tested materials favored nitrate reduction over hydrogen evolution, the disparity in the onset potentials of these reactions did not adequately explain the variations in nitrate removal efficiency, which was found to be influenced by material resistance and charge-transfer properties. The rate constants of elementary nitrate reduction steps determined from the time-dependent concentrations of nitrate and its reduction products (nitrous acid, hydroxylamine, and ammonium) were used to calculate the selectivity and efficiency of hydroxylamine production for each electrode. In turn, these selectivities and efficiencies were correlated with the density functional theory-computed adsorption energies of a key hydroxylamine precursor on different electrodes to afford a volcano-type plot with Ti and Sn at its pinnacle. Thus, this study introduces valuable descriptors and methods for the further screening of electrocatalysts for hydroxylamine generation and the establishment of more environmentally friendly hydroxylamine production techniques utilizing sustainable electricity.
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Affiliation(s)
- Ki-Myeong Lee
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hwajoo Joo
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Erwin Jongwoo Park
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Joohyun Kim
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Yunjeong Lee
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jeyong Yoon
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Changha Lee
- School of Chemical and Biological Engineering, Institute of Chemical Process (ICP), Institute of Engineering Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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Lin R, Xie L, Zheng X, Patience DOD, Duan X. Advances and challenges in biocathode microbial electrolysis cells for chlorinated organic compounds degradation from electroactive perspectives. Sci Total Environ 2023; 905:167141. [PMID: 37739072 DOI: 10.1016/j.scitotenv.2023.167141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
Microbial electrolysis cell (MEC) is a promising in-situ strategy for chlorinated organic compound (COC) pollution remediation due to its high efficiency, low energy input, and long-term potential. Reductive dechlorination as the most critical step in COC degradation which takes place primarily in the cathode chamber of MECs is a complex biochemical process driven by the behavior of electrons. However, no information is currently available on the internal mechanism of MEC in dechlorination from the perspective of the whole electron transfer procedure and its dependent electrode materials. This review addresses the underlying mechanism of MEC on the fundamental of the generation (electron donor), transmission (transfer pathway), utilization (functional microbiota) and reception (electron acceptor) of electrons in dechlorination. In addition, the vital role of varied cathode materials involved in the entire electron transfer procedure during COC dechlorination is emphasized. Subsequently, suggestions for future research, including model construction, cathode material modification, and expanding the applicability of MECs to removal gaseous COCs have been proposed. This paper enriches the mechanism of COC degradation by MEC, and thus provides the theoretical support for the scale-up bioreactors for efficient COC removal.
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Affiliation(s)
- Rujing Lin
- Key Laboratory of Yangtze River Water Environment, Ministry of Education; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Li Xie
- Key Laboratory of Yangtze River Water Environment, Ministry of Education; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Xiaomei Zheng
- Key Laboratory of Yangtze River Water Environment, Ministry of Education; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Dzedzemo-On Dufela Patience
- Key Laboratory of Yangtze River Water Environment, Ministry of Education; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Xu Duan
- Key Laboratory of Yangtze River Water Environment, Ministry of Education; College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
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Baek G, Logan BE. A comprehensive analysis of key factors influencing methane production from CO 2 using microbial methanogenesis cells. Water Res 2023; 245:120657. [PMID: 37778082 DOI: 10.1016/j.watres.2023.120657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/02/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
With increasing attention on carbon capture and utilization (CCU) technologies for the conversion of CO2 into chemical products, microbial methanogenesis cells (MMCs) have been extensively studied over the past few decades for biomethane production. Using rapidly accumulating data for MMCs with varying configurations and operating conditions, a comprehensive analysis was conducted here to investigate the critical factors that influence methane production rates (MPR) in these systems. A comparison of MPR and set potentials or current densities showed weak linear relationships (R2 < 0.6, p < 0.05), indicating the significant contributions of other important factors impacting methane production. A non-quantitative analysis of these additional parameters indicated the potential importance of using metal catalysts for anode materials where oxygen evolution reaction occurs, while most previous MMC research focused more on cathode materials where the biocatalytic reaction occurs. The use of undefined mixed anaerobic cultures as inocula was found to be sufficient for producing high MPRs, as the electrochemical environment at the cathode provides a strong selective pressure to converge on desirable methanogenic cultures. Other operational parameters, such as catholyte pH control and CO2 supply methods, were also important factors impacting MPR in MMCs, indicating the cumulative impact of these various factors will require careful consideration in future research.
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Affiliation(s)
- Gahyun Baek
- Department of Integrative Biotechnology, Sungkyunkwan University, 2066 Seoburo, Jangan-gu, Suwon 16419, Republic of Korea.
| | - Bruce E Logan
- Department of Civil and Environmental Engineering, The Pennsylvania State University, 231Q Sackett Building, University Park, PA 16802, USA
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Ullah E, Ullah Shah MZ, Ahmad SA, Sajjad M, Khan S, Alzahrani FM, Yahya AEM, Eldin SM, Akkinepally B, Shah A, Guo S. Hydrothermal assisted synthesis of hierarchical SnO 2 micro flowers with CdO nanoparticles based membrane for energy storage applications. Chemosphere 2023; 321:138004. [PMID: 36731674 DOI: 10.1016/j.chemosphere.2023.138004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/10/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Hierarchical nanostructures with appropriate morphology and surface functionalities are highly desired to achieve an optimized electrochemical property for active electrode materials. This work renders the facile hydrothermal synthesis of CdO, SnO2, and CdO-SnO2 nanocomposite, and their capacitive performance was tested. The formation of the pure samples and their composite was committed by low-temperature Raman spectroscopy and x-ray diffraction studies which revealed the tetragonal and cubic structures of CdO and SnO2 powder samples with good crystallinity and purity. The morphological postmortem reveals the formation of nanoparticles morphology of CdO with a highly smooth surface appearance. Besides, the SnO2 illustrates the morphology of the micro flowers composed of ultrathin nanosheets. More specifically, the electrochemical properties indicate the pseudocapacitive charge storage mechanism based on cyclic voltammetry and chronopotentiometry analysis. The CdO-SnO2 composite electrode displayed a higher capacitance due to additional pores/space offered for active sites and continuously allowed electrolyte ions to interact with the inner/outer surface of the electrode. These exciting findings led us to design and fabricate battery hybrid supercapacitors (BHSC) from CdO-SnO2, and activated carbon (AC), referred to as CdO-SnO2//AC BHSC, attains a high power delivery (5717 W/kg), and a maximum energy density of 42 Wh/kg at low discharge rate. Noteworthy, a stable cycling performance was obtained with only 91.3% retention after 8000 cycling at a large discharge current of 10 A/g, denoting the magnificent durability of the active electrode material.
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Affiliation(s)
- Ehsan Ullah
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China; National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan
| | - Muhammad Zia Ullah Shah
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan; Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Syed Awais Ahmad
- National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan; Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Muhammad Sajjad
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shaukat Khan
- Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah, 211, Oman
| | - Fatimah M Alzahrani
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Adel E M Yahya
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Sayed M Eldin
- Faculty of Engineering and Technology, Future University in Egypt, New Cairo, 11835, Egypt
| | - Bhargav Akkinepally
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, South Korea; School of General Education, Yeungnam University, Gyeongsan, 38541, South Korea.
| | - A Shah
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China.
| | - Shenghui Guo
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
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Priya TS, Chen TW, Chen SM, Kokulnathan T, Lou BS, Al-Onazi WA, Al-Mohaimeed AM, Elshikh MS, Yu J. Synthesis of perovskite-type potassium niobate using deep eutectic solvents: A promising electrode material for detection of bisphenol A. Chemosphere 2023; 318:137948. [PMID: 36716937 DOI: 10.1016/j.chemosphere.2023.137948] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
This study demonstrates a hydrothermal method to prepare perovskite-type potassium niobate (KNbO3) through deep eutectic solvent (DES), which is further used as an electrode material for the determination of bisphenol A (BPA). The as-synthesized KNbO3 was systematically characterized by different microscopic and spectroscopic techniques. The KNbO3-modified electrode demonstrates excellent electrocatalytic activity for BPA compared to the pristine electrode. The enhanced performance of the proposed sensor is attributed to the numerous active sites, large electrochemical surface area, high electrical conductivity, and rapid electron transfer. The fabricated sensor shows a wide detection range (0.01-84.3 μM), a low limit of detection (0.003 μM), a high sensitivity (0.51 μA μM-1 cm-2), and good anti-interference abilities towards the BPA detection by linear sweep voltammetry method. Besides, it was successfully applied to determining BPA in food samples, demonstrating good practicability. This design paves a new way to fabricate efficient electrode material for various electrochemical applications using a DES medium.
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Affiliation(s)
- Thangavelu Sakthi Priya
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan.
| | - Thangavelu Kokulnathan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Bih-Show Lou
- Chemistry Division, Center for General Education, Chang Gung University, Taoyuan 333, Taiwan; Department of Orthopaedic Surgery, New Taipei Municipal TuCheng Hospital, Chang Gung Memorial Hospital, New Taipei City, 236, Taiwan.
| | - Wedad A Al-Onazi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Amal M Al-Mohaimeed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed S Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Jaysan Yu
- Well Fore Special Wire Corporation, 10, Tzu-Chiang 7th., Chung-Li Industrial Park, Taoyuan, Taiwan
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Green DB, Kilgore JA, Bender SA, Daniels RJ, Gunzler DD, Vrabec TL, Bhadra N. Effects of waveform shape and electrode material on KiloHertz frequency alternating current block of mammalian peripheral nerve. Bioelectron Med 2022; 8:11. [PMID: 35883133 PMCID: PMC9327420 DOI: 10.1186/s42234-022-00093-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES KiloHertz frequency alternating current waveforms produce conduction block in peripheral nerves. It is not clearly known how the waveform shape affects block outcomes, and if waveform effects are frequency dependent. We determined the effects of waveform shape using two types of electrodes. MATERIALS AND METHODS Acute in-vivo experiments were performed on 12 rats. Bipolar electrodes were used to electrically block motor nerve impulses in the sciatic nerve, as measured using force output from the gastrocnemius muscle. Three blocking waveforms were delivered (sinusoidal, square and triangular) at 6 frequencies (10-60 kHz). Bare platinum electrodes were compared with carbon black coated electrodes. We determined the minimum amplitude that could completely block motor nerve conduction (block threshold), and measured properties of the onset response, which is a transient period of nerve activation at the start of block. In-vivo results were compared with computational modeling conducted using the NEURON simulation environment using a nerve membrane model modified for stimulation in the kilohertz frequency range. RESULTS For the majority of parameters, in-vivo testing and simulations showed similar results: Block thresholds increased linearly with frequency for all three waveforms. Block thresholds were significantly different between waveforms; lowest for the square waveform and highest for triangular waveform. When converted to charge per cycle, square waveforms required the maximum charge per phase, and triangular waveforms the least. Onset parameters were affected by blocking frequency but not by waveform shape. Electrode comparisons were performed only in-vivo. Electrodes with carbon black coatings gave significantly lower block thresholds and reduced onset responses across all blocking frequencies. For 10 and 20 kHz, carbon black coating significantly reduced the charge required for nerve block. CONCLUSIONS We conclude that both sinusoidal and square waveforms at frequencies of 20 kHz or higher would be optimal. Future investigation of carbon black or other high charge capacity electrodes may be useful in achieving block with lower BTs and onsets. These findings will be of importance for designing clinical nerve block systems.
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Affiliation(s)
- David B. Green
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA
| | - Joseph A. Kilgore
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA ,grid.67105.350000 0001 2164 3847Department of Physical Medicine and Rehabilitation, School of Medicine, Case Western Reserve University, Cleveland, OH USA
| | - Shane A. Bender
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA ,grid.67105.350000 0001 2164 3847Department of Physical Medicine and Rehabilitation, School of Medicine, Case Western Reserve University, Cleveland, OH USA
| | - Robert J. Daniels
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA ,grid.67105.350000 0001 2164 3847Department of Physical Medicine and Rehabilitation, School of Medicine, Case Western Reserve University, Cleveland, OH USA
| | - Douglas D. Gunzler
- grid.411931.f0000 0001 0035 4528Department of Medicine, Population Health Research Institute, Center for Healthcare Research & Policy, MetroHealth Medical Center, Cleveland, OH USA
| | - Tina L. Vrabec
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA ,grid.67105.350000 0001 2164 3847Department of Physical Medicine and Rehabilitation, School of Medicine, Case Western Reserve University, Cleveland, OH USA
| | - Niloy Bhadra
- grid.411931.f0000 0001 0035 4528Department of Physical Medicine and Rehabilitation, MetroHealth Medical Center, Cleveland, OH USA ,grid.67105.350000 0001 2164 3847Department of Physical Medicine and Rehabilitation, School of Medicine, Case Western Reserve University, Cleveland, OH USA
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Zhong Y, Wang T, Yan M, Huang X, Zhou X. Carbon nanofibers derived from cellulose via molten-salt method as supercapacitor electrode. Int J Biol Macromol 2022; 207:541-8. [PMID: 35296438 DOI: 10.1016/j.ijbiomac.2022.03.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 01/25/2023]
Abstract
Carbon nanofibers (CNFs) have been paid much attention as supercapacitor electrode due to outstanding chemical stability, high electron transfer rate and large specific surface area. However, the preparation process of CNFs is always stalemated in electrospinning, heat stabilization and carbonization. The problems of solvent pollution in the electrospinning process, complex process and high energy consumption in conventional carbonization process can't be solved. Herein, CNFs have been innovatively prepared from nanofibrillated cellulose by the molten-salt method (NaCl/NaOH). Molten salt penetrates between the fibers, separates and activates the fibers. The obtained carbon nanofibers remain developed branching structures and have a large specific surface area (899 m2 g-1). The electrical properties are tested in a symmetrical two-electrode system. The specific capacitance is 150 F g-1 at the current density of 1 A g-1. Low equivalent series resistance (1.13 Ω) indicates that it has high electrode conductivity. This study has taken into account energy conservation, environmental protection, recyclability and simplified preparation process, which has a very far-reaching significance for the industrial production of CNFs.
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Hussain I, Mohapatra D, Lamiel C, Ahmad M, Ashraf MA, Chen Y, Gu S, Javed MS, Zhang K. Phosphorus containing layered quadruple hydroxide electrode materials on lab waste recycled flexible current collector. J Colloid Interface Sci 2021; 609:566-574. [PMID: 34836654 DOI: 10.1016/j.jcis.2021.11.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 10/19/2022]
Abstract
From environmental waste to energy storage, waste boxes converted into conductive electrodes to further grow active materials has been an interesting way of upcycling. In this study, we transformed waste boxes of KIMTECH Kimwipes® into conductive f-MWCNTs light and flexible substrate (LFS) as current collectors. Then, undoped and P-doped active materials consisting of layered quadruple hydroxides (LQH) was successfully grown on the conductive f-MWCNTs/LFS. Specifically, P-doped f-MWCNTs/LQH demonstrates 1.8 times the capacitance of an undoped f-MWCNTs/LQH. Such conversion of waste boxes not only offers a useful way of reusing waste papers which commonly ends in landfills, but the inexpensive method also offers an extreme way of cutting cost in developing conductive substrates. Also, the effective strategy of synthesizing active materials on the conductive f-MWCNTs/LFS paves its way as potential cheap electrodes of the future generation.
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Affiliation(s)
- Iftikhar Hussain
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Debananda Mohapatra
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, South Korea
| | - Charmaine Lamiel
- Department of Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Muhammad Ahmad
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Muhammad Awais Ashraf
- State Key Laboratory of Multicomplex Phase Systems, Institute of Process Engineering, Chinese Academy of Science, Beijing, China
| | - Yatu Chen
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Shuai Gu
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Kaili Zhang
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.
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Yadav A, Jadhav DA, Ghangrekar MM, Mitra A. Effectiveness of constructed wetland integrated with microbial fuel cell for domestic wastewater treatment and to facilitate power generation. Environ Sci Pollut Res Int 2021; 29:51117-51129. [PMID: 34826088 DOI: 10.1007/s11356-021-17517-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 11/09/2021] [Indexed: 02/05/2023]
Abstract
Constructed wetlands (CWs) have gained a lot of attention for wastewater treatment due to robustness and natural pollutant mitigation characteristics. This widely acknowledged technology possesses enough merits to derive direct electricity in collaboration with microbial fuel cell (MFC), thus taking advantage of microbial metabolic activities in the anoxic zone of CWs. In the present study, two identical lab-scale CWs were selected, each having 56 L capacity. One of the CW integrated with MFC (CW-MFC) contains two pairs of electrodes, i.e., carbon felt and graphite plate. The first pair of CW-MFC consists of a carbon felt cathode with a graphite plate anode, and the second pair contains a graphite plate cathode with a carbon felt anode. The other CW was not integrated with MFC and operated as a traditional CW for evaluating the performance. CW-MFC and CW were operated in continuous up-flow mode with a hydraulic retention time of 3 days and at different organic loading rates (OLRs) per unit surface area, such as 1.45 g m-2 day-1 (OLR-1), 2.43 g m-2 day-1 (OLR-2), and 7.25 g m-2 day-1 (OLR-3). The CW-MFC was able to reduce the organic matter, phosphate, and total nitrogen by 92%, 93%, and 70%, respectively, at OLR of 1.45 g m-2 day-1, which was found to be higher than that obtained in conventional CW. With increase in electrochemical redox activities, the second pair of electrodes made way for 3 times higher power density of 16.33 mW m-2 as compared to the first pair of electrodes in CW-MFC (5.35 mW m-2), asserting carbon felt as a good anode material to be used in CW-MFC. The CW-MFC with carbon felt as an anode material is proposed to improve the electro-kinetic activities for scalable applications to achieve efficient domestic wastewater treatment and electricity production.
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Affiliation(s)
- Anamika Yadav
- Department of Agricultural Engineering, Triguna Sen School of Technology, Assam University Silchar, Assam, 788011, India
- Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, 721302, India
| | - Dipak A Jadhav
- School of Water Resources, Indian Institute of Technology, Kharagpur, 721302, India.
- Department of Agricultural Engineering, Maharashtra Institute of Technology, Aurangabad, Maharashtra, 431010, India.
| | - Makarand M Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology, Kharagpur, 721302, India.
| | - Arunabha Mitra
- Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur, 721302, India
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11
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Yang C, Hong L, Chong P, Li Y, Wei M. Tin-based metal-phosphine complexes nanoparticles as long-cycle life electrodes for high-performance hybrid supercapacitors. J Colloid Interface Sci 2021; 606:148-157. [PMID: 34388567 DOI: 10.1016/j.jcis.2021.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/01/2021] [Accepted: 08/02/2021] [Indexed: 12/21/2022]
Abstract
New tin-based metal-phosphine complexes of [Sn(OH)4(PPh3)2] and [Sn(OH)2(PPh3)2] have been successfully synthesized and used as supercapacitor electrodes for the first time, exhibiting a high specific capacitance, a good rate capability, and an excellent cycling stability. The specific capacitances (highest specific capacitance for tin-based materials) of 1204F g-1 and 764F g-1 for two samples at a current density of 1 A g-1 in 6 M KOH can respectively be achieved, and their capacitance retention remained at 95.1% and 89.2% even after 15,000 cycles at a current density of 10 A g-1. Furthermore, a flexible quasi-solid-state asymmetric supercapacitor composed of Sn(OH)2(PPh3)2 and activated carbon was assembled and exhibited a specific capacitance of 290.6 mF cm-2 at a current density of 1 mA cm-2. More importantly, this device also displayed excellent cyclic stability of ∼100% for 1800 cycles during the galvanostatic charge/discharge process at 5 mF cm-2.
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Affiliation(s)
- Chengyu Yang
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China
| | - Lvyin Hong
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China
| | - Peidian Chong
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China
| | - Yafeng Li
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China.
| | - Mingdeng Wei
- Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China; State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, Fujian 350002, China.
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12
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Huang S, Zhang J, Pi J, Gong L, Zhu G. Long-term electricity generation and denitrification performance of MFCs with different exchange membranes and electrode materials. Bioelectrochemistry 2021; 140:107748. [PMID: 33609890 DOI: 10.1016/j.bioelechem.2021.107748] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 11/16/2022]
Abstract
Different biocathode electrode materials (graphite felt and carbon brush, GF and CB) and exchange membranes (proton exchange membrane and cation exchange membrane, PEM and CEM) were used in three microbial fuel cell (MFC) configurations operated for 300-days to investigate the power generation and the COD and N removal performance. Results showed no effect on the COD removal (all above 96%); however, the power generation (46.11 mW·h) and denitrification performance (68.0 ± 1.6%) of the MFC-B (GF + PEM) system were higher than those of the other systems (MFC-A: CB + PEM; MFC-C: CB + CEM) (P < 0.01), and the power generation and denitrification performance of all three systems decreased with time (P < 0.01). By analyzing the physicochemical properties of the exchange membrane and cathode electrode materials, the reasons that affect the power generation performance of the system were clarified. Furthermore, the increase in bioelectricity enhanced the electricity-related nitrification and denitrification reactions. The average 300-day unit denitrification cost of MFC-A was 4.2 and 6.3 times that of MFC-B and MFC-C, respectively. Comprehensive consideration of electricity generation, denitrification, and service life, combined with cost analysis and better selection of construction materials, provides a theoretical basis for the long-term stable operation and sustainable application of MFCs.
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Affiliation(s)
- Shan Huang
- School of Energy and Environment, Southeast University, Nanjing 210096, China; State Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Jingran Zhang
- School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Jiachang Pi
- School of Energy and Environment, Southeast University, Nanjing 210096, China; State Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Liying Gong
- School of Energy and Environment, Southeast University, Nanjing 210096, China; State Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Guangcan Zhu
- School of Energy and Environment, Southeast University, Nanjing 210096, China; State Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Southeast University, Nanjing, Jiangsu 210096, China.
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13
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Klapiszewski Ł, Szalaty TJ, Graś M, Moszyński D, Buchwald T, Lota G, Jesionowski T. Lignin-based dual component additives as effective electrode material for energy management systems. Int J Biol Macromol 2020; 165:268-278. [PMID: 32991894 DOI: 10.1016/j.ijbiomac.2020.09.191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/14/2020] [Accepted: 09/22/2020] [Indexed: 11/16/2022]
Abstract
A functional PbO-lignin electrode hydrid material composite was designed and manufactured. Moreover, its connection efficiency was confirmed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). We noted that the superficial layers of PbO combined with layers of the biopolymer and that oxygen atoms present in both materials had influence on the chemical environment of the neighboring compound. Hence, it can be said that the addition of PbO significantly contributes to the improvement of thermal stability of the final inorganic-organic system. In the framework of the study, the dispersive, morphological and structural characteristics were determined using scanning electron microscopy (SEM) and laser diffraction method. Electrochemical studies indicated that the PbO-lignin material exhibits better electrochemical properties compared to PbO without the addition of kraft lignin (increased capacitance, lower charge transfer resistance), as the specific capacitance after 5000 charge/discharge cycles was still at 95% of the initial value. Such promising operating parameters show that this material can be successfully used as an electrode material for energy management systems.
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Affiliation(s)
- Łukasz Klapiszewski
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Tadeusz J Szalaty
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
| | - Małgorzata Graś
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemistry and Technical Electrochemistry, Berdychowo 4, PL-60965 Poznan, Poland
| | - Dariusz Moszyński
- West Pomeranian University of Technology Szczecin, Faculty of Chemical Technology and Engineering, Institute of Inorganic Chemical Technology and Environment Engineering, Pułaskiego 10, PL-70322 Szczecin, Poland
| | - Tomasz Buchwald
- Poznan University of Technology, Faculty of Materials Engineering and Technical Physics, Institute of Materials Research and Quantum Engineering, Piotrowo 3, PL-60965 Poznan, Poland
| | - Grzegorz Lota
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemistry and Technical Electrochemistry, Berdychowo 4, PL-60965 Poznan, Poland
| | - Teofil Jesionowski
- Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland
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14
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Singh A, Ojha AK. Designing vertically aligned porous NiCo 2O 4@MnMoO 4 Core@Shell nanostructures for high-performance asymmetric supercapacitors. J Colloid Interface Sci 2020; 580:720-729. [PMID: 32717440 DOI: 10.1016/j.jcis.2020.07.062] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/28/2020] [Accepted: 07/12/2020] [Indexed: 11/28/2022]
Abstract
NiCo2O4@MnMoO4 core@shell nanostructures are synthesized as electrode material using hydrothermal method for the fabrication of asymmetric supercapacitor (ASC) device. The NiCo2O4@MnMoO4 electrode shows better electrochemical performance with specific capacitance (SC) of 1821 F/g at current density of 5 A/g and cycling stability of 94%. The NiCo2O4@MnMoO4 core@shell electrode shows better SC compared to pure NiCo2O4 and MnMoO4 electrodes. An ASC device is fabricated using NiCo2O4@MnMoO4 as a positive and rGO/Fe2O3 as negative electrode materials. Remarkably, the fabricated device shows a SC of 294 F/g at current density 4 A/g, with an energy density of 91.87 Wh/kg at a power density of 374.15 W/kg. The device shows good reversibility with cycling stability of 68% after 2,000 cycles. The ASC device is used to illuminate nine green color LEDs for 35 min. Therefore, the present report provides a simple method to fabricate efficient and stable energy storage devices for industrial applications.
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Affiliation(s)
- Arvind Singh
- Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, India
| | - Animesh K Ojha
- Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, India.
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15
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Ma C, Min J, Gong J, Liu X, Mu X, Chen X, Tang T. Transforming polystyrene waste into 3D hierarchically porous carbon for high-performance supercapacitors. Chemosphere 2020; 253:126755. [PMID: 32464775 DOI: 10.1016/j.chemosphere.2020.126755] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/07/2020] [Accepted: 04/07/2020] [Indexed: 05/24/2023]
Abstract
Polystyrene (PS) is usually discarded as a solid waste after a short lifespan. Thus the disposal of waste PS is an inevitably worldwide issue because of their stable and non-biodegradable nature. Herein, a facile method was proposed to carbonize PS waste into novel three-dimensional (3D) hierarchically porous carbon using Fe2O3 particles as both catalyst and template. Furthermore, KOH activation was applied to generate microporous and mesopores on the wall of macropores. As a result, the obtained 3D hierarchically porous carbon exhibits a high specific capacitance of 284.1 F g-1 at 0.5 A g-1 and good rate performance of 198 F g-1 at 20 A g-1 in a three-electrode device. Moreover, the assembled symmetrical capacitor displays a high energy density of 19.2 W h kg-1 at the power density of 200.7 W kg-1 in aqueous electrolyte. Therefore, the present research develops a sustainable way to recycle waste plastics into 3D hierarchically porous carbon for supercapacitors.
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Affiliation(s)
- Changde Ma
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230026, China
| | - Jiakang Min
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jiang Gong
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoguang Liu
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| | - Xueying Mu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xuecheng Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland.
| | - Tao Tang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230026, China.
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16
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Hagiwara R, Matsumoto K, Hwang J, Nohira T. Sodium Ion Batteries using Ionic Liquids as Electrolytes. CHEM REC 2019; 19:758-770. [PMID: 30480364 DOI: 10.1002/tcr.201800119] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/21/2018] [Accepted: 10/26/2018] [Indexed: 01/24/2023]
Abstract
Sodium ion batteries have been developed using ionic liquids as electrolytes. Sodium is superior to lithium as a raw material for mass production of large-scale batteries for energy storage due to its abundance and even distribution across the earth. Ionic liquids are non-volatile and non-flammable, which improved the safety of the batteries remarkably. In addition, operation temperatures were extended to higher values, improving the performance of the batteries by facilitating the reaction at the electrode and mass transfer. Binary systems of sodium and quaternary ammonium salts, such as 1-ethyl-3-methylimidazolium and N-methyl-N-propylpyrrolidinium bis(fluorosulfonyl)amide, were employed as electrolytes for sodium ion batteries. A series of positive and negative electrode materials were examined to be combined with these ionic liquid electrolytes. A 27 Ah full cell was fabricated employing sodium chromite (NaCrO2 ) and hard carbon as positive and negative electrode materials, respectively. The gravimetric energy density obtained for the battery was 75 Wh kg-1 and its volumetric energy density was 125 Wh L-1 . The capacity retention after 500 cycles was 87 %. Further improvement of the cell performance and energy density is expected on development of suitable electrode materials and optimization of the cell design.
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Affiliation(s)
- Rika Hagiwara
- Graduate School of Energy Science, Kyoto University Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kazuhiko Matsumoto
- Graduate School of Energy Science, Kyoto University Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Jinkwang Hwang
- Graduate School of Energy Science, Kyoto University Yoshida-honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Toshiyuki Nohira
- Institute of Advanced Energy, Kyoto University Gokasho, Uji, 611-0011, Japan
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17
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Li W, Wang X, Hu Y, Sun L, Gao C, Zhang C, Liu H, Duan M. Hydrothermal Synthesized of CoMoO 4 Microspheres as Excellent Electrode Material for Supercapacitor. Nanoscale Res Lett 2018; 13:120. [PMID: 29693212 PMCID: PMC5915980 DOI: 10.1186/s11671-018-2540-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/17/2018] [Indexed: 05/25/2023]
Abstract
The single-phase CoMoO4 was prepared via a facile hydrothermal method coupled with calcination treatment at 400 °C. The structures, morphologies, and electrochemical properties of samples with different hydrothermal reaction times were investigated. The microsphere structure, which consisted of nanoflakes, was observed in samples. The specific capacitances at 1 A g-1 are 151, 182, 243, 384, and 186 F g-1 for samples with the hydrothermal times of 1, 4, 8, 12, and 24 h, respectively. In addition, the sample with the hydrothermal time of 12 h shows a good rate capability, and there is 45% retention of initial capacitance when the current density increases from 1 to 8 A g-1. The high retain capacitances of samples show the fine long-cycle stability after 1000 charge-discharge cycles at current density of 8 A g-1. The results indicate that CoMoO4 samples could be a choice of excellent electrode materials for supercapacitor.
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Affiliation(s)
- Weixia Li
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Xianwei Wang
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Yanchun Hu
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Lingyun Sun
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Chang Gao
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Cuicui Zhang
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Han Liu
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
| | - Meng Duan
- Laboratory of Functional Materials and Henan Key Laboratory of Photovoltaic Materials, College of Physics and Materials Science, Henan Normal University, No. 46 Construction East Road, Xinxiang, 453007 Henan China
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18
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Prabaharan G, Barik SP, Kumar N, Kumar L. Electrochemical process for electrode material of spent lithium ion batteries. Waste Manag 2017; 68:527-533. [PMID: 28711181 DOI: 10.1016/j.wasman.2017.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/30/2017] [Accepted: 07/05/2017] [Indexed: 06/07/2023]
Abstract
Electrochemical method for recovering cobalt and manganese from electrode materials of spent lithium ion batteries was studied. Electrochemical leaching of cobalt and manganese from electrode material was optimized by varying different process parameters such as time, acid concentration and current density. Both cobalt and manganese could effectively be leached out at a current density of 400A/m2 in 3h using 2M sulphuric acid. In the subsequent study, the metallic cobalt and electrolytic manganese dioxides was recovered from the leach liquor at 200A/m2, pH 2-2.5 and 90°C after removing aluminum. The commercial feasibility of the study was tested in pilot scale. Overall recovery of Co, Cu and Mn was above 96%, 97% and 99%, respectively.
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Affiliation(s)
- G Prabaharan
- Department of R&D, Attero Recycling Pvt. Ltd, Roorkee, Uttarakhand 247661, India
| | - S P Barik
- Department of R&D, Attero Recycling Pvt. Ltd, Roorkee, Uttarakhand 247661, India.
| | - N Kumar
- Department of R&D, Attero Recycling Pvt. Ltd, Roorkee, Uttarakhand 247661, India
| | - L Kumar
- Department of R&D, Attero Recycling Pvt. Ltd, Roorkee, Uttarakhand 247661, India
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19
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Wang J, Song X, Wang Y, Abayneh B, Ding Y, Yan D, Bai J. Microbial community structure of different electrode materials in constructed wetland incorporating microbial fuel cell. Bioresour Technol 2016; 221:697-702. [PMID: 27717561 DOI: 10.1016/j.biortech.2016.09.116] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
The microbial fuel cell coupled with constructed wetland (CW-MFC) microcosms were operated under fed-batch mode for evaluating the effect of electrode materials on bioelectricity generation and microbial community composition. Experimental results indicated that the bioenergy output in CW-MFC increased with the substrate concentration; maximum average voltage (177mV) was observed in CW-MFC with carbon fiber felt (CFF). In addition, the four different materials resulted in the formation of significantly different microbial community distribution around the anode electrode. The relative abundance of Proteobacteria in CFF and foamed nickel (FN) was significantly higher than that in stainless steel mesh (SSM) and graphite rod (GR) samples. Notably, the findings indicate that CW-MFC utilizing FN anode electrode could apparently improve relative abundance of Dechloromonas, which has been regarded as a denitrifying and phosphate accumulating microorganism.
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Affiliation(s)
- Junfeng Wang
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Xinshan Song
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China.
| | - Yuhui Wang
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Befkadu Abayneh
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Yi Ding
- College of Environmental Science and Engineering, State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, Donghua University, Shanghai 201620, China
| | - Denghua Yan
- Department of Water Resources, China Institute of Water Resource and Hydropower Research, Beijing 100038, China
| | - Junhong Bai
- School of Environment, Beijing Normal University, Beijing 100038, China
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20
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Mjejri I, Sediri F. Synthesis and electrochemical performance of hierarchical nano-vanadium oxide. J Colloid Interface Sci 2016; 480:191-7. [PMID: 27442146 DOI: 10.1016/j.jcis.2016.07.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/11/2016] [Accepted: 07/14/2016] [Indexed: 11/23/2022]
Abstract
Hierarchically structured nano-vanadium oxides with different morphologies have been synthesized via a template-free hydrothermal route by adjusting the organic precursor quantities. The effects of molar ratio on structure, morphology and crystallite sized were investigated. The possible growth mechanism is also proposed. When evaluated as a cathode material for lithium-ion batteries, the vanadium oxyhydroxide H2V3O8 samples deliver very high charging capacity, good reversibility and a better cycling stability. The excellent electrochemical performance is attributed to multiple advantageous structural features.
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21
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Mengal N, Sahito IA, Arbab AA, Sun KC, Qadir MB, Memon AA, Jeong SH. Fabrication of a flexible and conductive lyocell fabric decorated with graphene nanosheets as a stable electrode material. Carbohydr Polym 2016; 152:19-25. [PMID: 27516245 DOI: 10.1016/j.carbpol.2016.06.099] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/31/2016] [Accepted: 06/26/2016] [Indexed: 11/30/2022]
Abstract
Textile electrodes are highly desirable for wearable electronics as they offer light-weight, flexibility, cost effectiveness and ease of fabrication. Here, we propose the use of lyocell fabric as a flexible textile electrode because of its inherently super hydrophilic characteristics and increased moisture uptake. A highly concentrated colloidal solution of graphene oxide nanosheets (GONs) was coated on to lyocell fabric and was then reduced in to graphene nanosheets (GNs) using facile chemical reduction method. The proposed textile electrode has a very high surface conductivity with a very low value of surface resistance of only 40Ωsq(-1), importantly without use of any binding or adhesive material in the processing step. Atomic force spectroscopy (AFM) and Transmission electron microscopy (TEM) were conducted to study the topographical properties and sheet exfoliation of prepared GONs. The surface morphology, structural characterization and thermal stability of the fabricated textile electrode were studied by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR), X ray photon spectroscopy (XPS), Raman spectroscopy, Wide angle X ray diffraction spectroscopy (WAXD) and Thermogravimetric analysis (TGA) respectively. These results suggest that the GONs is effectively adhered on to the lyocell fabric and the conversion of GONs in to GNs by chemical reduction has no adverse effect on the crystalline structure of textile substrate. The prepared graphene coated conductive lyocell fabric was found stable in water and electrolyte solution and it maintained nearly same surface electrical conductivity at various bending angles. The electrical resistance results suggest that this lyocell based textile electrode (L-GNs) is a promising candidate for flexible and wearable electronics and energy harvesting devices.
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Affiliation(s)
- Naveed Mengal
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Iftikhar Ali Sahito
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea; Mehran University of Engineering and Technology, Jamshoro, 76062, Pakistan
| | - Alvira Ayoub Arbab
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea; Mehran University of Engineering and Technology, Jamshoro, 76062, Pakistan
| | - Kyung Chul Sun
- Department of Fuel Cell and Hydrogen Technology, Hanyang University, Seoul 133-791, Republic of Korea; Research Institute of Industrial Technology Convergence Technical Textile and Materials R&D Group, Korea Institute of Industrial Technology, Republic of Korea
| | - Muhammad Bilal Qadir
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Anam Ali Memon
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea
| | - Sung Hoon Jeong
- Department of Organic and Nano Engineering, Hanyang University, Seoul 133-791, Republic of Korea.
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22
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Ma K, Zhao W, Cheng JP, Liu F, Zhang X. Free-standing α-Co(OH)2/graphene oxide thin films fabricated through delamination and reassembling of acetate anions intercalated α-Co(OH)2 and graphene oxide in water. J Colloid Interface Sci 2016; 468:238-246. [PMID: 26852347 DOI: 10.1016/j.jcis.2016.01.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/22/2016] [Accepted: 01/26/2016] [Indexed: 10/22/2022]
Abstract
A novel hydrothermal process is demonstrated to prepare acetate anions intercalated α-Co(OH)2 that can be delaminated in water without any additional anion exchange processes. Positively charged Co(OH)2 nanosheets with lateral size of hundreds of nanometers and thickness less than 2 nm can be obtained by dispersing the as-obtained α-Co(OH)2 into water followed by sonication. The exfoliated Co(OH)2 nanosheets can be restacked into its original structure with different interlayer d-spacings. A flexible free-standing film with stacking Co(OH)2 nanosheets and graphene oxide (GO) layers can be obtained through flocculation of the Co(OH)2 nanosheets with GO nanosheets suspensions followed by a vacuum filtration, but the content of Co(OH)2 has to be kept under a low value so as to obtain films with flexible nature. Electrochemical tests show that this kind of film is not suitable to be used as electrode material for supercapacitor and lithium ion battery, because the content of active material is not high and the compacted junction between opposite charged nanosheets will prevent the electrolyte from diffusing into the interlayer space.
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Affiliation(s)
- KeYuan Ma
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, PR China
| | - WenJia Zhao
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, PR China
| | - J P Cheng
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, PR China.
| | - Fu Liu
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, PR China
| | - XiaoBin Zhang
- State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, PR China
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Shruthi B, Bheema Raju V, Madhu BJ. Synthesis, spectroscopic and electrochemical performance of pasted β-nickel hydroxide electrode in alkaline electrolyte. Spectrochim Acta A Mol Biomol Spectrosc 2015; 135:683-689. [PMID: 25128682 DOI: 10.1016/j.saa.2014.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/13/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
β-Nickel hydroxide (β-Ni(OH)2) was successfully synthesized using precipitation method. The structure and property of the β-Ni(OH)2 were characterized by X-ray diffraction (XRD), Fourier Transform infra-red (FT-IR), Raman spectra and thermal gravimetric-differential thermal analysis (TG-DTA). The results of the FTIR spectroscopy and TG-DTA studies indicate that the β-Ni(OH)2 contains water molecules and anions. The microstructural and composition studies have been performed using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) analysis. A pasted-type electrode is prepared using β-Ni(OH)2 powder as the active material on a nickel sheet as a current collector. Cyclic voltammetry (CV) and Electrochemical impedance spectroscopy (EIS) studies were performed to evaluate the electrochemical performance of the β-Ni(OH)2 electrode in 6M KOH electrolyte. CV curves showed a pair of strong redox peaks as a result of the Faradaic redox reactions of β-Ni(OH)2. The proton diffusion coefficient (D) for the present β-Ni(OH)2 electrode material is found to be 1.44×10(-12) cm(2) s(-1). Further, electrochemical impedance studies confirmed that the β-Ni(OH)2 electrode reaction processes are diffusion controlled.
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Affiliation(s)
- B Shruthi
- Department of Chemistry, Dr. Ambedkar Institute of Technology, Bangalore 560 056, India
| | - V Bheema Raju
- Department of Chemistry, Dr. Ambedkar Institute of Technology, Bangalore 560 056, India
| | - B J Madhu
- Post Graduate Department of Physics, Government Science College, Chitradurga 577 501, India.
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Dolch K, Danzer J, Kabbeck T, Bierer B, Erben J, Förster AH, Maisch J, Nick P, Kerzenmacher S, Gescher J. Characterization of microbial current production as a function of microbe-electrode-interaction. Bioresour Technol 2014; 157:284-92. [PMID: 24566287 DOI: 10.1016/j.biortech.2014.01.112] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/24/2014] [Accepted: 01/27/2014] [Indexed: 05/15/2023]
Abstract
Microbe-electrode-interactions are keys for microbial fuel cell technology. Nevertheless, standard measurement routines to analyze the interplay of microbial physiology and material characteristics have not been introduced yet. In this study, graphite anodes with varying surface properties were evaluated using pure cultures of Shewanella oneidensis and Geobacter sulfurreducens, as well as defined and undefined mixed cultures. The evaluation routine consisted of a galvanostatic period, a current sweep and an evaluation of population density. The results show that surface area correlates only to a certain extent with population density and anode performance. Furthermore, the study highlights a strain-specific microbe-electrode-interaction, which is affected by the introduction of another microorganism. Moreover, evidence is provided for the possibility of translating results from pure culture to undefined mixed species experiments. This is the first study on microbe-electrode-interaction that systematically integrates and compares electrochemical and biological data.
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Affiliation(s)
- Kerstin Dolch
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany.
| | - Joana Danzer
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Tobias Kabbeck
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany.
| | - Benedikt Bierer
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Johannes Erben
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Andreas H Förster
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany.
| | - Jan Maisch
- Botanical Institute, Molecular Cell Biology, Karlsruhe Institute of Technology, Kaiserstrasse 2, 76131 Karlsruhe, Germany.
| | - Peter Nick
- Botanical Institute, Molecular Cell Biology, Karlsruhe Institute of Technology, Kaiserstrasse 2, 76131 Karlsruhe, Germany.
| | - Sven Kerzenmacher
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, 79110 Freiburg, Germany.
| | - Johannes Gescher
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany.
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