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Liu X, Huang M, Yang S, Devasenathipathy R, Xie L, Yang Z, Wang L, Huang D, Peng X, Chen DH, Li JF, Fan Y, Chen W. Spatially Confined Radical Addition Reaction for Electrochemical Synthesis of Carboxylated Graphene and its Applications in Water Desalination and Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401972. [PMID: 38770749 DOI: 10.1002/smll.202401972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/10/2024] [Indexed: 05/22/2024]
Abstract
Due to the chemical stability of graphene, synthesis of carboxylated graphene still remains challenging during the electrochemical exfoliation of graphite. In this work, a spatially confined radical addition reaction which occurs in the sub-nanometer scaled interlayers of the expanded graphene sheets for the electrochemical synthesis of highly stable carboxylated graphene is reported. Here, formate anions act as both intercalation ions and co-reactant acid for the confinement of electro-generated carboxylic radical (●COOH) in the sub-nanometer scaled interlayers, which facilitates the radical addition reaction on graphene sheets. The controllable carboxylation of graphene is realized by tuning the concentration of formate anions in the electrolyte solution. The high crystallinity of the obtained product indicates the occurrence of spatially confined ●COOH addition reaction between the sub-nanometer interlayers of expanded graphite. In addition, the carboxylated graphene have been used for water desalination and hydrogen/oxygen reduction reaction. Therefore, this work provides a new method for the in situ preparation of functionalized graphene through the electrolysis and its applications in water desalination and hydrogen/oxygen reduction reactions.
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Affiliation(s)
- Xiaotian Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Mingzheng Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Shuting Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Rajkumar Devasenathipathy
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Linhong Xie
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Zhongyun Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Limin Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Dujuan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Xinglan Peng
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Du-Hong Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Jian-Feng Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Wei Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
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2
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Wu Y, Li Y, Zhang X. The Future of Graphene: Preparation from Biomass Waste and Sports Applications. Molecules 2024; 29:1825. [PMID: 38675644 PMCID: PMC11053808 DOI: 10.3390/molecules29081825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
At present, the main raw material for producing graphene is graphite ore. However, researchers actively seek alternative resources due to their high cost and environmental problems. Biomass waste has attracted much attention due to its carbon-rich structure and renewability, emerging as a potential raw material for graphene production to be used in sports equipment. However, further progress is required on the quality of graphene produced from waste biomass. This paper, therefore, summarizes the properties, structures, and production processes of graphene and its derivatives, as well as the inherent advantages of biomass waste-derived graphene. Finally, this paper reviews graphene's importance and application prospects in sports since this wonder material has made sports equipment available with high-strength and lightweight quality. Moreover, its outstanding thermal and electrical conductivity is exploited to prepare wearable sensors to collect more accurate sports data, thus helping to improve athletes' training levels and competitive performance. Although the large-scale production of biomass waste-derived graphene has yet to be realized, it is expected that its application will expand to various other fields due to the associated low cost and environmental friendliness of the preparation technique.
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Affiliation(s)
- Yueting Wu
- Graduate School, Harbin Sport University, Harbin 150008, China; (Y.W.)
| | - Yanlong Li
- Academic Theory Research Department, Harbin Sport University, Harbin 150008, China
| | - Xiangyang Zhang
- Graduate School, Harbin Sport University, Harbin 150008, China; (Y.W.)
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3
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Hoque MA, Rahman AM, Rahman MM, Bhuiyan MNI, Jahan SA, Ali Shaikh MA, Nurnabi M. Effect of successive recycling and reuse of acid liquor for the synthesis of graphene oxides with higher oxygen-to-carbon ratios. Heliyon 2024; 10:e27639. [PMID: 38496892 PMCID: PMC10944265 DOI: 10.1016/j.heliyon.2024.e27639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/19/2024] [Accepted: 03/04/2024] [Indexed: 03/19/2024] Open
Abstract
Graphene has recently drawn exponential attention due to its surprising physicochemical properties and diversified field of applications. Although graphene oxides (GOs), itself is an exclusive material, it is also an intermediate product for the production of reduced graphene oxides (rGOs), graphene and their derivatives, which are other more superficial materials. In this study, GOs with higher oxygen to carbon ratios were synthesized following the Tour method, where the excess feed acid liquor (FAL) of mixed concentrated sulfuric and orthophosphoric acids at a ratio of 90:10 was recovered from the reaction slurries by applying the centrifugation technique. About 80-90 % of the FAL was recycled and reused as feed for the subsequent batches. The changes in the properties of FAL for the five consecutive recycling and reuse were studied. The properties of recycled FALs were investigated by measuring density, moisture content, pH, and ion concentration. The consecutive recycling of FALs tends to increase the moisture content about 0.5% in each recycles. Ion-chromatography (IC) was used to measure the variation in SO42- and PO43- ions in the FALs. The H2SO4 reacts with KMnO4 and crystalized out from the recovered FAL faster than the phosphoric acid. So, sulfuric acid content in the makeover FALs must be greater than primary FAL. The product GOs were characterized using FT-IR, FT-Raman, UVVis, STA, SEM, XPS, Zeta-potential, and particle size analyzers. The variation of the properties of GOs with the changes in the reaction parameters such as temperature and time were investigated and correlated with the product yield. It was observed that the effect of temperature on the reaction rate was found to be negatively and positive with the reaction time. The oxygen-to-carbon atomic ratio from XPS analysis was found 66.7%, which supported the increase in product yields 66.9% in the experimental results. The effect of acid concentration, reaction temperature, and time on the GOs properties were satisfactory, correlated, and easily controllable with the reaction conditions. A higher extent of oxidation and enhanced product yields 65-70% were observed at 60-70 °C and 14-18 h. A mixture of nano- and macro-molecular GOs was obtained, and their compositions were easily controllable and separable by controlling the reaction conditions. A correlation was made among the properties of synthesized GOs, FAL, and recycled FAL and reaction conditions.
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Affiliation(s)
- Mohammad Amirul Hoque
- BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - A.F.M. Mustafizur Rahman
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka (DU), Dhaka, 1000, Bangladesh
| | - Mohammad Mahbubur Rahman
- BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Mohammad Nazrul Islam Bhuiyan
- Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Shirin Akter Jahan
- Institute of Glass and Ceramic Research and Testing, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Md Aftab Ali Shaikh
- BCSIR Dhaka Laboratories, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
- Department of Chemistry, University of Dhaka (DU), Dhaka, 1000, Bangladesh
| | - Mohammad Nurnabi
- Department of Applied Chemistry and Chemical Engineering, University of Dhaka (DU), Dhaka, 1000, Bangladesh
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4
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Pavlak I, Matasović L, Buchanan EA, Michl J, Rončević I. Electronic Structure of Metalloporphenes, Antiaromatic Analogues of Graphene. J Am Chem Soc 2024; 146:3992-4000. [PMID: 38294407 PMCID: PMC10870706 DOI: 10.1021/jacs.3c12079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
Zinc porphene is a two-dimensional material made of fully fused zinc porphyrins in a tetragonal lattice. It has a fully conjugated π-system, making it similar to graphene. Zinc porphene has recently been synthesized, and a combination of rough conductivity measurements and infrared and Raman spectroscopies all suggested that it is a semiconductor (Magnera, T.F. et al. Porphene and Porphite as Porphyrin Analogs of Graphene and Graphite, Nat. Commun.2023, 14, 6308). This is in contrast with all previous predictions of its electronic structure, which indicated metallic conductivity. We show that the gap-opening in zinc porphene is caused by a Peierls distortion of its unit cell from square to rectangular, thus giving the first account of its electronic structure in agreement with the experiment. Accounting for this distortion requires proper treatment of electron delocalization, which can be done using hybrid functionals with a substantial amount of exact exchange. Such a functional, PBE38, is then applied to predict the properties of many first transition row metalloporphenes, some of which have already been prepared. We find that changing the metal strongly affects the electronic structure of metalloporphenes, resulting in a rich variety of both metallic conductors and semiconductors, which may be of great interest to molecular electronics and spintronics. Properties of these materials are mostly governed by the extent of the Peierls distortion and the number of electrons in their π-system, analogous to changes in aromaticity observed in cyclic conjugated molecules upon oxidation or reduction. These results give an account of how the concept of antiaromaticity can be extended to periodic systems.
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Affiliation(s)
- Ivan Pavlak
- Department
of Chemistry, Faculty of Science, University
of Zagreb, Horvatovac 102A, Zagreb 10000, Croatia
| | - Lujo Matasović
- Cavendish
Laboratory, Department of Physics, University
of Cambridge, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K.
| | - Eric A. Buchanan
- Department
of Chemistry and Biochemistry, University
of Colorado, Boulder, Colorado 80309-0215, United States
| | - Josef Michl
- Department
of Chemistry and Biochemistry, University
of Colorado, Boulder, Colorado 80309-0215, United States
- Institute
of Organic Chemistry and Biochemistry of the CAS, Flemingovo nám. 2, Prague 6 16610, Czech Republic
| | - Igor Rončević
- Institute
of Organic Chemistry and Biochemistry of the CAS, Flemingovo nám. 2, Prague 6 16610, Czech Republic
- Department
of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, U.K.
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5
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Albino A, Buonocore F, Celino M, Totti F. The chimera of 2D- and 1D-graphene magnetization by hydrogenation or fluorination: critically revisiting old schemes and proposing new ones by ab initio methods. NANOSCALE ADVANCES 2024; 6:1106-1121. [PMID: 38356622 PMCID: PMC10863704 DOI: 10.1039/d3na01008b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/06/2024] [Indexed: 02/16/2024]
Abstract
Graphene is an ideal candidate material for spintronics due to its layered structure and peculiar electronic structure. However, in its pristine state, the production of magnetic moments is not trivial. A very appealing approach is the chemical modification of pristine graphene. The main obstacle is the control of the geometrical features and the selectivity of functional groups. The lack of a periodic functionalization pattern of the graphene sheet prevents, therefore, the achievement of long-range magnetic order, thus limiting its use in spintronic devices. In such regards, the stability and the magnitude of the instilled magnetic moment depending on the size and shape of in silico designed graphane islands and ribbons embedded in graphene matrix will be computed and analysed. Our findings thus suggest that a novel and magneto-active graphene derivative nanostructure could become achievable more easily than extended graphone or nanoribbons, with a strong potential for future spintronics applications with a variable spin-current density.
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Affiliation(s)
- Andrea Albino
- Dipartimento di Chimica "Ugo Schiff" & INSTM RU, Università degli Studi di Firenze Via della Lastruccia 3 Sesto Fiorentino (FI) 50019 Italy
| | - Francesco Buonocore
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA), Casaccia Research Centre Roma 00123 Italy
| | - Massimo Celino
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA), Casaccia Research Centre Roma 00123 Italy
| | - Federico Totti
- Dipartimento di Chimica "Ugo Schiff" & INSTM RU, Università degli Studi di Firenze Via della Lastruccia 3 Sesto Fiorentino (FI) 50019 Italy
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6
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Zhou J, Liu Y, Du X, Gui Y, He J, Xie F, Cai J. Recent Advances in Design and Application of Nanomaterials-Based Colorimetric Biosensors for Agri-food Safety Analysis. ACS OMEGA 2023; 8:46346-46361. [PMID: 38107919 PMCID: PMC10720297 DOI: 10.1021/acsomega.3c06409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 12/19/2023]
Abstract
A colorimetric sensor detects an analyte by utilizing the optical properties of the sensor unit, such as absorption or reflection, to generate a structural color that serves as the output signal to detect an analyte. Detecting the refractive index of an analyte by recording the color change of the sensor structure on its surface has several advantages, including simple operation, low cost, suitability for onsite analysis, and real-time detection. Colorimetric sensors have drawn much attention owing to their rapidity, simplicity, high sensitivity and selectivity. This Review discusses the use of colorimetric sensors in the food industry, including their applications for detecting food contaminants. The Review also provides insight into the scope of future research in this area.
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Affiliation(s)
- Jiaojiao Zhou
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Yuantao Liu
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Xiaoping Du
- Ankang
R&D Center for Se-enriched Products, Key Laboratory of Se-enriched
Products Development and Quality Control, Ministry of Agriculture and Rural Affairs, Ankang Shaanxi 725000, China
| | - Yue Gui
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jiangling He
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Fang Xie
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jie Cai
- National
R&D Center for Se-Rich Agricultural Products Processing, Hubei
Engineering Research Center for Deep Processing of Green Se-Rich Agricultural
Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
- Key
Laboratory for Deep Processing of Major Grain and Oil, Ministry of
Education, Hubei Key Laboratory for Processing and Transformation
of Agricultural Products, Wuhan Polytechnic
University, Wuhan 430023, China
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7
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Zhang Y, Guo Z. Transition metal compounds: From properties, applications to wettability regulation. Adv Colloid Interface Sci 2023; 321:103027. [PMID: 37883847 DOI: 10.1016/j.cis.2023.103027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/07/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023]
Abstract
Transition metal compounds (TMCs) have the advantages of abundant reserves, low cost, non-toxic and pollution-free, and have attracted wide attention in recent years. With the development of two-dimensional layered materials, a new two-dimensional transition metal carbonitride (MXene) has attracted extensive attention due to its excellent physicochemical properties such as gas selectivity, photocatalytic properties, electromagnetic interference shielding and photothermal properties. They are widely used in gas sensors, oil/water separation, wastewater and waste-oil treatment, cancer treatment, seawater desalination, strain sensors, medical materials and some energy storage materials. In this view, we aim to emphatically summarize MXene with their properties, applications and their wettability regulation in different applications. In addition, the properties of transition metal oxides (TMOs) and other TMCs and their wettability regulation applications are also discussed.
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Affiliation(s)
- Yidan Zhang
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China
| | - Zhiguang Guo
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China; State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
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8
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Mazarei E, Penschke C, Saalfrank P. Band Gap Engineering in Two-Dimensional Materials by Functionalization: Methylation of Graphene and Graphene Bilayers. ACS OMEGA 2023; 8:22026-22041. [PMID: 37360460 PMCID: PMC10286272 DOI: 10.1021/acsomega.3c02068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/08/2023] [Indexed: 06/28/2023]
Abstract
Graphene is well-known for its unique combination of electrical and mechanical properties. However, its vanishing band gap limits the use of graphene in microelectronics. Covalent functionalization of graphene has been a common approach to address this critical issue and introduce a band gap. In this Article, we systematically analyze the functionalization of single-layer graphene (SLG) and bilayer graphene (BLG) with methyl (CH3) using periodic density functional theory (DFT) at the PBE+D3 level of theory. We also include a comparison of methylated single-layer and bilayer graphene, as well as a discussion of different methylation options (radicalic, cationic, and anionic). For SLG, methyl coverages ranging from 1/8 to 1/1, (i.e., the fully methylated analogue of graphane) are considered. We find that up to a coverage θ of 1/2, graphene readily accepts CH3, with neighbor CH3 groups preferring trans positions. Above θ = 1/2, the tendency to accept further CH3 weakens and the lattice constant increases. The band gap behaves less regularly, but overall it increases with increasing methyl coverage. Thus, methylated graphene shows potential for developing band gap-tuned microelectronics devices and may offer further functionalization options. To guide in the interpretation of methylation experiments, vibrational signatures of various species are characterized by normal-mode analysis (NMA), their vibrational density of states (VDOS), and infrared (IR) spectra, the latter two are obtained from ab initio molecular dynamics (AIMD) in combination with a velocity-velocity autocorrelation function (VVAF) approach.
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Affiliation(s)
- Elham Mazarei
- Institut
für Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam, Germany
| | - Christopher Penschke
- Institut
für Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam, Germany
| | - Peter Saalfrank
- Institut
für Chemie, Universität Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam, Germany
- Institut
für Physik und Astronomie, Universität
Potsdam, Karl-Liebknecht-Str.
24-25, D-14476 Potsdam, Germany
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9
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Rabchinskii MK, Besedina NA, Brzhezinskaya M, Stolyarova DY, Ryzhkov SA, Saveliev SD, Antonov GA, Baidakova MV, Pavlov SI, Kirilenko DA, Shvidchenko AV, Cherviakova PD, Brunkov PN. Graphene Amination towards Its Grafting by Antibodies for Biosensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111730. [PMID: 37299631 DOI: 10.3390/nano13111730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
The facile synthesis of biografted 2D derivatives complemented by a nuanced understanding of their properties are keystones for advancements in biosensing technologies. Herein, we thoroughly examine the feasibility of aminated graphene as a platform for the covalent conjugation of monoclonal antibodies towards human IgG immunoglobulins. Applying core-level spectroscopy methods, namely X-ray photoelectron and absorption spectroscopies, we delve into the chemistry and its effect on the electronic structure of the aminated graphene prior to and after the immobilization of monoclonal antibodies. Furthermore, the alterations in the morphology of the graphene layers upon the applied derivatization protocols are assessed by electron microscopy techniques. Chemiresistive biosensors composed of the aerosol-deposited layers of the aminated graphene with the conjugated antibodies are fabricated and tested, demonstrating a selective response towards IgM immunoglobulins with a limit of detection as low as 10 pg/mL. Taken together, these findings advance and outline graphene derivatives' application in biosensing as well as hint at the features of the alterations of graphene morphology and physics upon its functionalization and further covalent grafting by biomolecules.
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Affiliation(s)
| | - Nadezhda A Besedina
- Department of Physics, Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Dina Yu Stolyarova
- NRC "Kurchatov Institute", Akademika Kurchatova pl. 1, Moscow 123182, Russia
| | - Sergei A Ryzhkov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | | | - Grigorii A Antonov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Marina V Baidakova
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Sergei I Pavlov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Demid A Kirilenko
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | | | | | - Pavel N Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
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10
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Thakur MK, Haider G, Sonia FJ, Plšek J, Rodriguez A, Mishra V, Panda J, Gedeon O, Mergl M, Volochanskyi O, Valeš V, Frank O, Vejpravova J, Kalbáč M. Isotope Engineered Fluorinated Single and Bilayer Graphene: Insights into Fluorination Selectivity, Stability, and Defect Passivation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205575. [PMID: 36593530 DOI: 10.1002/smll.202205575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Tailoring the physicochemical properties of graphene through functionalization remains a major interest for next-generation technological applications. However, defect formation due to functionalization greatly endangers the intrinsic properties of graphene, which remains a serious concern. Despite numerous attempts to address this issue, a comprehensive analysis has not been conducted. This work reports a two-step fluorination process to stabilize the fluorinated graphene and obtain control over the fluorination-induced defects in graphene layers. The structural, electronic and isotope-mass-sensitive spectroscopic characterization unveils several not-yet-resolved facts, such as fluorination sites and CF bond stability in partially-fluorinated graphene (F-SLG). The stability of fluorine has been correlated to fluorine co-shared between two graphene layers in fluorinated-bilayer-graphene (F-BLG). The desorption energy of co-shared fluorine is an order of magnitude higher than the CF bond energy in F-SLG due to the electrostatic interaction and the inhibition of defluorination in the F-BLG. Additionally, F-BLG exhibits enhanced light-matter interaction, which has been utilized to design a proof-of-concept field-effect phototransistor that produces high photocurrent response at a time <200 µs. Thus, the study paves a new avenue for the in-depth understanding and practical utilization of fluorinated graphenic carbon.
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Affiliation(s)
- Mukesh Kumar Thakur
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Golam Haider
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Farjana J Sonia
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Jan Plšek
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Alvaro Rodriguez
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Vipin Mishra
- Department of Glass and Ceramics, University of Chemistry and Technology, Prague, Technická 5, 16628, Prague 6, Czech Republic
| | - Jaganandha Panda
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Ondrej Gedeon
- Department of Glass and Ceramics, University of Chemistry and Technology, Prague, Technická 5, 16628, Prague 6, Czech Republic
| | - Martin Mergl
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Oleksandr Volochanskyi
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Václav Valeš
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Otakar Frank
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
| | - Jana Vejpravova
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 12116, Prague 2, Czech Republic
| | - Martin Kalbáč
- J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 2155/3, 18200, Prague 8, Czech Republic
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11
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Amato F, Motta A, Giaccari L, Di Pasquale R, Scaramuzzo FA, Zanoni R, Marrani AG. One-pot carboxyl enrichment fosters water-dispersibility of reduced graphene oxide: a combined experimental and theoretical assessment. NANOSCALE ADVANCES 2023; 5:893-906. [PMID: 36756527 PMCID: PMC9890975 DOI: 10.1039/d2na00771a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Graphene, one of the allotropic forms of carbon, has attracted enormous interest in the last few years due to its unique properties. Reduced graphene oxide (RGO) is known as the nanomaterial most similar to graphene in terms of electronic, chemical, mechanical, and optical properties. It is prepared from graphene oxide (GO) in the presence of different types of reducing agents. Nevertheless, the application of RGO is still limited, owing to its tendency to irreversibly aggregate in an aqueous medium. Herein, we disclosed the preparation of water-dispersible RGO from GO previously enriched with additional carboxyl functional groups through a one-pot reaction, followed by chemical reduction. This novel and unprecedentedly reported reactivity of GO toward the acylating agent succinic anhydride (SA) was experimentally investigated through XPS, Raman, FT-IR, and UV-Vis, and corroborated by DFT calculations, which have shown a peculiar involvement in the functionalization reaction of both epoxide and hydroxyl functional groups. This proposed synthetic protocol avoids use of sodium cyanide, previously reported for carboxylation of graphene, and focuses on the sustainable and scalable preparation of a water-dispersible RGO, paving the way for its application in many fields where the colloidal stability in aqueous medium is required.
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Affiliation(s)
- Francesco Amato
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
| | - Alessandro Motta
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
- Consorzio INSTM, UdR Roma "La Sapienza" p.le A. Moro 5 I-00185 Rome Italy
| | - Leonardo Giaccari
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
| | - Roberto Di Pasquale
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
| | - Francesca Anna Scaramuzzo
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria (S.B.A.I.), Università di Roma La Sapienza Via del Castro Laurenziano 7 I-00161 Rome Italy
| | - Robertino Zanoni
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
| | - Andrea Giacomo Marrani
- Dipartimento di Chimica, Università di Roma La Sapienza p.le A. Moro 5 I-00185 Rome Italy +39 0649913568 +39 0649913316
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12
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Rabchinskii MK, Shnitov VV, Brzhezinskaya M, Baidakova MV, Stolyarova DY, Ryzhkov SA, Saveliev SD, Shvidchenko AV, Nefedov DY, Antonenko AO, Pavlov SV, Kislenko VA, Kislenko SA, Brunkov PN. Manifesting Epoxide and Hydroxyl Groups in XPS Spectra and Valence Band of Graphene Derivatives. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:nano13010023. [PMID: 36615934 PMCID: PMC9823558 DOI: 10.3390/nano13010023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 06/12/2023]
Abstract
The derivatization of graphene to engineer its band structure is a subject of significant attention nowadays, extending the frames of graphene material applications in the fields of catalysis, sensing, and energy harvesting. Yet, the accurate identification of a certain group and its effect on graphene's electronic structure is an intricate question. Herein, we propose the advanced fingerprinting of the epoxide and hydroxyl groups on the graphene layers via core-level methods and reveal the modification of their valence band (VB) upon the introduction of these oxygen functionalities. The distinctive contribution of epoxide and hydroxyl groups to the C 1s X-ray photoelectron spectra was indicated experimentally, allowing the quantitative characterization of each group, not just their sum. The appearance of a set of localized states in graphene's VB related to the molecular orbitals of the introduced functionalities was signified both experimentally and theoretically. Applying the density functional theory calculations, the impact of the localized states corresponding to the molecular orbitals of the hydroxyl and epoxide groups was decomposed. Altogether, these findings unveiled the particular contribution of the epoxide and hydroxyl groups to the core-level spectra and band structure of graphene derivatives, advancing graphene functionalization as a tool to engineer its physical properties.
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Affiliation(s)
| | | | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | | | - Dina Yu. Stolyarova
- NRC “Kurchatov Institute”, Akademika Kurchatova pl. 1, 123182 Moscow, Russia
| | - Sergey A. Ryzhkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia
| | | | | | - Denis Yu. Nefedov
- St. Petersburg State University, Universitetskaya nab. 7–9, 199034 St. Petersburg, Russia
| | | | - Sergey V. Pavlov
- Joint Institute for High Temperatures of RAS, Izhorskaya St. 13/2, 125412 Moscow, Russia
| | - Vitaliy A. Kislenko
- Joint Institute for High Temperatures of RAS, Izhorskaya St. 13/2, 125412 Moscow, Russia
- Skolkovo Institute of Science and Technology (Skoltech), Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia
| | - Sergey A. Kislenko
- Joint Institute for High Temperatures of RAS, Izhorskaya St. 13/2, 125412 Moscow, Russia
| | - Pavel N. Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia
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13
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Gudkov MV, Stolyarova DY, Shiyanova KA, Mel’nikov VP. Polymer Composites with Graphene and Its Derivatives as Functional Materials of the Future. POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222010027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Burmeister D, Tran HA, Müller J, Guerrini M, Cocchi C, Plaickner J, Kochovski Z, List‐Kratochvil EJW, Bojdys MJ. Optimierte Synthese von in Lösung verarbeitbarem kristallinem Poly(triazinimid) mit minimalen Defekten für OLED‐Anwendungen. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- David Burmeister
- Department of Chemistry Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Zum Großen Windkanal 2 12489 Berlin Deutschland
| | - Ha Anh Tran
- Department of Chemistry Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Zum Großen Windkanal 2 12489 Berlin Deutschland
| | - Johannes Müller
- Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Straße 15 12489 Berlin Deutschland
| | - Michele Guerrini
- Institute of Physics Carl von Ossietzky Universität Oldenburg 26129 Oldenburg Deutschland
| | - Caterina Cocchi
- Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Brook-Taylor-Straße 15 12489 Berlin Deutschland
- Institute of Physics Carl von Ossietzky Universität Oldenburg 26129 Oldenburg Deutschland
| | - Julian Plaickner
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Hahn-Meitner-Platz 1 14109 Berlin Deutschland
- Leibniz-Institut für Analytische Wissenschaften – IAS e.V. Schwarzschildstraße 8 12489 Berlin Deutschland
| | - Zdravko Kochovski
- Institute of Electrochemical Energy Storage Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner-Platz 1 14109 Berlin Deutschland
| | - Emil J. W. List‐Kratochvil
- Department of Chemistry Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Zum Großen Windkanal 2 12489 Berlin Deutschland
| | - Michael J. Bojdys
- Department of Chemistry Kings College London Britannia House Guy's Campus, 7 Trinity Street London SE1 1DB Vereinigtes Königreich
- Department of Chemistry Department of Physics IRIS Adlershof Humboldt-Universität zu Berlin Zum Großen Windkanal 2 12489 Berlin Deutschland
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15
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Stathis A, Bouza Z, Papadakis I, Couris S. Tailoring the Nonlinear Optical Response of Some Graphene Derivatives by Ultraviolet (UV) Irradiation. NANOMATERIALS 2022; 12:nano12010152. [PMID: 35010102 PMCID: PMC8746475 DOI: 10.3390/nano12010152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 12/28/2022]
Abstract
In the present work the impact of in situ photoreduction, by means of ultraviolet (UV) irradiation, on the nonlinear optical response (NLO) of some graphene oxide (GO), fluorographene (GF), hydrogenated fluorographene (GFH) and graphene (G) dispersions is studied. In situ UV photoreduction allowed for the extended modification of the degree of functionalization (i.e., oxidization, fluorination and hydrogenation), leading to the effective tuning of the corresponding sp2/sp3 hybridization ratios. The nonlinear optical properties of the studied samples prior to and after UV irradiation were determined by means of the Z-scan technique using visible (532 nm), 4 ns laser excitation, and were found to change significantly. More specifically, while GO's nonlinear optical response increases with irradiation time, GF and GFH present a monotonic decrease. The graphene dispersions' nonlinear optical response remains unaffected after prolonged UV irradiation for more than an hour. The present findings demonstrate that UV photoreduction can be an effective and simple strategy for tuning the nonlinear optical response of these graphene derivatives in a controllable way, resulting in derivatives with custom-made responses, thus more suitable for different photonic and optoelectronic applications.
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Affiliation(s)
- Aristeidis Stathis
- Department of Physics, University of Patras, 26504 Patras, Greece; (A.S.); (Z.B.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Greece
| | - Zoi Bouza
- Department of Physics, University of Patras, 26504 Patras, Greece; (A.S.); (Z.B.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Greece
| | - Ioannis Papadakis
- Department of Physics, University of Patras, 26504 Patras, Greece; (A.S.); (Z.B.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Greece
| | - Stelios Couris
- Department of Physics, University of Patras, 26504 Patras, Greece; (A.S.); (Z.B.); (I.P.)
- Institute of Chemical Engineering Sciences (ICE-HT), Foundation for Research and Technology-Hellas (FORTH), 26504 Patras, Greece
- Correspondence:
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16
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Abstract
With the development of the Internet of things, artificial intelligence, and wearable devices, massive amounts of data are generated and need to be processed. High standards are required to store and analyze this information. In the face of the explosive growth of information, the memory used in data storage and processing faces great challenges. Among many types of memories, memristors have received extensive attentions due to their low energy consumption, strong tolerance, simple structure, and strong miniaturization. However, they still face many problems, especially in the application of artificial bionic synapses, which call for higher requirements in the mechanical properties of the device. The progress of integrated circuit and micro-processing manufacturing technology has greatly promoted development of the flexible memristor. The use of a flexible memristor to simulate nerve synapses will provide new methods for neural network computing and bionic sensing systems. In this paper, the materials and structure of the flexible memristor are summarized and discussed, and the latest configuration and new materials are described. In addition, this paper will focus on its application in artificial bionic synapses and discuss the challenges and development direction of flexible memristors from this perspective.
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17
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Rabchinskii MK, Sysoev VV, Ryzhkov SA, Eliseyev IA, Stolyarova DY, Antonov GA, Struchkov NS, Brzhezinskaya M, Kirilenko DA, Pavlov SI, Palenov ME, Mishin MV, Kvashenkina OE, Gabdullin PG, Varezhnikov AS, Solomatin MA, Brunkov PN. A Blueprint for the Synthesis and Characterization of Thiolated Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 12:45. [PMID: 35009995 PMCID: PMC8746421 DOI: 10.3390/nano12010045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/14/2021] [Accepted: 12/22/2021] [Indexed: 06/12/2023]
Abstract
Graphene derivatization to either engineer its physical and chemical properties or overcome the problem of the facile synthesis of nanographenes is a subject of significant attention in the nanomaterials research community. In this paper, we propose a facile and scalable method for the synthesis of thiolated graphene via a two-step liquid-phase treatment of graphene oxide (GO). Employing the core-level methods, the introduction of up to 5.1 at.% of thiols is indicated with the simultaneous rise of the C/O ratio to 16.8. The crumpling of the graphene layer upon thiolation without its perforation is pointed out by microscopic and Raman studies. The conductance of thiolated graphene is revealed to be driven by the Mott hopping mechanism with the sheet resistance values of 2.15 kΩ/sq and dependable on the environment. The preliminary results on the chemiresistive effect of these films upon exposure to ethanol vapors in the mix with dry and humid air are shown. Finally, the work function value and valence band structure of thiolated graphene are analyzed. Taken together, the developed method and findings of the morphology and physics of the thiolated graphene guide the further application of this derivative in energy storage, sensing devices, and smart materials.
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Affiliation(s)
- Maxim K. Rabchinskii
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Victor V. Sysoev
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Sergei A. Ryzhkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Ilya A. Eliseyev
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Dina Yu. Stolyarova
- National Research Centre “Kurchatov Institute”, Akademika Kurchatova pl. 1, 123182 Moscow, Russia;
| | - Grigorii A. Antonov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Nikolai S. Struchkov
- Center for Probe Microscopy and Nanotechnology, National Research University of Electronic Technology, Bld. 1, Shokin Square, 124498 Moscow, Russia;
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany;
| | - Demid A. Kirilenko
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Sergei I. Pavlov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Mihail E. Palenov
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Maxim V. Mishin
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Olga E. Kvashenkina
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Pavel G. Gabdullin
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Alexey S. Varezhnikov
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Maksim A. Solomatin
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Pavel N. Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
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18
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Shnitov VV, Rabchinskii MK, Brzhezinskaya M, Stolyarova DY, Pavlov SV, Baidakova MV, Shvidchenko AV, Kislenko VA, Kislenko SA, Brunkov PN. Valence Band Structure Engineering in Graphene Derivatives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104316. [PMID: 34704658 DOI: 10.1002/smll.202104316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Engineering of the 2D materials' electronic structure is at the forefront of nanomaterials research nowadays, giving an advance in the development of next-generation photonic devices, e-sensing technologies, and smart materials. Herein, employing core-level spectroscopy methods combined with density functional theory (DFT) modeling, the modification of the graphenes' valence band (VB) upon its derivatization by carboxyls and ketones is revealed. The appearance of a set of localized states in the VB of graphene related to molecular orbitals of the introduced functionalities is signified both experimentally and theoretically. Applying the DFT calculations of the density of states projected on the functional groups, their contributions to the VB structure are decomposed. An empirical approach, allowing one to analyze and predict the impact of a certain functional group on the graphenes' electronic structure in terms of examination of the model molecules, mimicking the introduced functionality, is proposed and validated. The interpretation of the arising states origin is made and their designation, pointing out their symmetry type, is proposed. Taken together, these results guide the band structure engineering of graphene derivatives and give a hint on the mechanisms underlying the alteration of the VB structure of 2D materials upon their derivatization.
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Affiliation(s)
- Vladimir V Shnitov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg, 194021, Russia
| | - Maxim K Rabchinskii
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg, 194021, Russia
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Dina Yu Stolyarova
- NRC "Kurchatov Institute", Akademika Kurchatova pl. 1, Moscow, 123182, Russia
| | - Sergey V Pavlov
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Nobel St. 3, Moscow, 143026, Russia
- Joint Institute for High Temperatures of RAS, 13/2 Izhorskaya St., Moscow, 125412, Russia
| | - Marina V Baidakova
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg, 194021, Russia
| | | | - Vitaliy A Kislenko
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Nobel St. 3, Moscow, 143026, Russia
- Joint Institute for High Temperatures of RAS, 13/2 Izhorskaya St., Moscow, 125412, Russia
| | - Sergey A Kislenko
- Joint Institute for High Temperatures of RAS, 13/2 Izhorskaya St., Moscow, 125412, Russia
- Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, 141701, Russia
| | - Pavel N Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg, 194021, Russia
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19
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Applications of two-dimensional layered nanomaterials in photoelectrochemical sensors: A comprehensive review. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214156] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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Liu M, Jia M, E Y, Li D. A novel ion selective electrode based on reduced graphene oxide for potentiometric determination of sarafloxacin hydrochloride. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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21
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Burmeister D, Trunk MG, Bojdys MJ. Development of metal-free layered semiconductors for 2D organic field-effect transistors. Chem Soc Rev 2021; 50:11559-11576. [PMID: 34661213 PMCID: PMC8521667 DOI: 10.1039/d1cs00497b] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 12/23/2022]
Abstract
To this day, the active components of integrated circuits consist mostly of (semi-)metals. Concerns for raw material supply and pricing aside, the overreliance on (semi-)metals in electronics limits our abilities (i) to tune the properties and composition of the active components, (ii) to freely process their physical dimensions, and (iii) to expand their deployment to applications that require optical transparency, mechanical flexibility, and permeability. 2D organic semiconductors match these criteria more closely. In this review, we discuss a number of 2D organic materials that can facilitate charge transport across and in-between their π-conjugated layers as well as the challenges that arise from modulation and processing of organic polymer semiconductors in electronic devices such as organic field-effect transistors.
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Affiliation(s)
- David Burmeister
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
- Integrative Research Institute for the Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 2, 12489 Berlin, Germany
| | - Matthias G Trunk
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
- Integrative Research Institute for the Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 2, 12489 Berlin, Germany
| | - Michael J Bojdys
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany.
- Integrative Research Institute for the Sciences Adlershof, Humboldt-Universität zu Berlin, Zum Großen Windkanal 2, 12489 Berlin, Germany
- Department of Chemistry, King's College London, Britannia House Guy's Campus, 7 Trinity Street, London, SE1 1DB, UK
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22
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Burmeister D, Tran HA, Müller J, Guerrini M, Cocchi C, Plaickner J, Kochovski Z, List-Kratochvil EJW, Bojdys MJ. Optimized Synthesis of Solution-Processable Crystalline Poly(Triazine Imide) with Minimized Defects for OLED Application. Angew Chem Int Ed Engl 2021; 61:e202111749. [PMID: 34634165 PMCID: PMC9300060 DOI: 10.1002/anie.202111749] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/29/2021] [Indexed: 11/13/2022]
Abstract
Poly(triazine imide) (PTI) is a highly crystalline semiconductor, and though no techniques exist that enable synthesis of macroscopic monolayers of PTI, it is possible to study it in thin layer device applications that are compatible with its polycrystalline, nanoscale morphology. We find that the by‐product of conventional PTI synthesis is a C−C carbon‐rich phase that is detrimental for charge transport and photoluminescence. An optimized synthetic protocol yields a PTI material with an increased quantum yield, enabled photocurrent and electroluminescence. We report that protonation of the PTI structure happens preferentially at the pyridinic N atoms of the triazine rings, is accompanied by exfoliation of PTI layers, and contributes to increases in quantum yield and exciton lifetimes. This study describes structure–property relationships in PTI that link the nature of defects, their formation, and how to avoid them with the optical and electronic performance of PTI. On the basis of our findings, we create an OLED prototype with PTI as the active, metal‐free material.
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Affiliation(s)
- David Burmeister
- Department of Chemistry, Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Zum Grossen Windkanal 2, 12489, Berlin, Germany
| | - Ha Anh Tran
- Department of Chemistry, Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Zum Grossen Windkanal 2, 12489, Berlin, Germany
| | - Johannes Müller
- Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 15, 12489, Berlin, Germany
| | - Michele Guerrini
- Institute of Physics, Carl von Ossietzky Universität Oldenburg, 26129, Oldenburg, Germany
| | - Caterina Cocchi
- Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 15, 12489, Berlin, Germany.,Institute of Physics, Carl von Ossietzky Universität Oldenburg, 26129, Oldenburg, Germany
| | - Julian Plaickner
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany.,Leibniz-Institut für Analytische Wissenschaften-IAS e.V., Schwarzschildstrasse 8, 12489, Berlin, Germany
| | - Zdravko Kochovski
- Institute of Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Emil J W List-Kratochvil
- Department of Chemistry, Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Zum Grossen Windkanal 2, 12489, Berlin, Germany
| | - Michael J Bojdys
- Department of Chemistry, Kings College London, Britannia House Guy's Campus, 7 Trinity Street, London, SE1 1DB, United Kingdom.,Department of Chemistry, Department of Physics, IRIS Adlershof, Humboldt-Universität zu Berlin, Zum Grossen Windkanal 2, 12489, Berlin, Germany
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23
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Xu Y, Li S, Zhang W, Liu Y, Liu J, Di M, Wang Y, Du Y, Tang N. Universal Fluorination-Created Edge C-F Groups in Networks of Multidimensional Carbon Materials. J Phys Chem Lett 2021; 12:7026-7033. [PMID: 34286986 DOI: 10.1021/acs.jpclett.1c01678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fluorination can significantly change the physical and chemical properties of carbon materials (CMs). Common sense for the fluorination mechanism for CMs indicates that one basal-plane C-F group (CF group) can form as one fluorine atom bonded to one carbon atom along the out-of-plane carbon networks without creating edge C-F groups (including CF2 and CF3 groups) at vacancies in carbon networks. We report that fluorination can generally create edge C-F groups in multidimensional CMs such as graphite, graphene, carbon nanotubes, and fullerene, and the concentration of edge C-F groups is dependent on both the crystallinity of starting CMs and the fluorination pressure and temperature. As an example, we show the significant differences in the band gap opening, photoluminescence, and magnetic properties between two half-fluorinated graphenes with different concentrations of edge C-F groups. Our findings highlight the importance of fluorination in creating edge C-F groups in the structure and properties and introduce new insight into fluorinated CMs.
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Affiliation(s)
- Yongjie Xu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Shuilin Li
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Weili Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Yuan Liu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
- Faculty of Science, Zhenjiang Key Laboratory for Advanced Sensing Materials and Devices, Jiangsu University, Zhenjiang 212013, China
| | - Jiawei Liu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Maoyun Di
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Yong Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
- Academy of Advanced Interdisciplinary Research, Xidian University, Xi'an 710126, China
| | - Youwei Du
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
| | - Nujiang Tang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University, Nanjing 210093, China
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24
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Di Costanzo L, Geremia S. Atomic Details of Carbon-Based Nanomolecules Interacting with Proteins. Molecules 2020; 25:E3555. [PMID: 32759758 PMCID: PMC7435792 DOI: 10.3390/molecules25153555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/21/2022] Open
Abstract
Since the discovery of fullerene, carbon-based nanomolecules sparked a wealth of research across biological, medical and material sciences. Understanding the interactions of these materials with biological samples at the atomic level is crucial for improving the applications of nanomolecules and address safety aspects concerning their use in medicine. Protein crystallography provides the interface view between proteins and carbon-based nanomolecules. We review forefront structural studies of nanomolecules interacting with proteins and the mechanism underlying these interactions. We provide a systematic analysis of approaches used to select proteins interacting with carbon-based nanomolecules explored from the worldwide Protein Data Bank (wwPDB) and scientific literature. The analysis of van der Waals interactions from available data provides important aspects of interactions between proteins and nanomolecules with implications on functional consequences. Carbon-based nanomolecules modulate protein surface electrostatic and, by forming ordered clusters, could modify protein quaternary structures. Lessons learned from structural studies are exemplary and will guide new projects for bioimaging tools, tuning of intrinsically disordered proteins, and design assembly of precise hybrid materials.
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Affiliation(s)
- Luigi Di Costanzo
- Department of Agricultural Sciences, University of Naples Federico II, 100, 80055 Portici, Italy
| | - Silvano Geremia
- Centre of Excellence in Biocrystallography, Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;
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25
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Dutta A, Chhetri B, Nongrum R, Kupar Kharmawlong G, Yadav AK, Nongkhlaw R. Ultrasound‐Assisted Synthesis of Nitrogen and Oxygen Containing Heterocycles Using Fluorinated Graphene Oxide as Catalyst: Evaluation of Their Anthelmintic Activities. ChemistrySelect 2020. [DOI: 10.1002/slct.202001442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Arup Dutta
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
| | - Bhusan Chhetri
- Department of Zoology North-Eastern Hill University Shillong Meghalaya 793022 India) Institution
| | - Ridaphun Nongrum
- Department of Chemistry Sankardev College Shillong Meghalaya 793004 India
| | | | - Arun K. Yadav
- Department of Zoology North-Eastern Hill University Shillong Meghalaya 793022 India) Institution
| | - Rishanlang Nongkhlaw
- Department of Chemistry North-Eastern Hill University Shillong Meghalaya 793022 India
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26
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Rajeena U, Raveendran P, Ramakrishnan RM. Stepwise defluorination of fluorographene: How do the structural features govern the rates of heterogeneous electron transfer? J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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27
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Multi-Leg TiO2 Nanotube Photoelectrodes Modified by Platinized Cyanographene with Enhanced Photoelectrochemical Performance. Catalysts 2020. [DOI: 10.3390/catal10060717] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Highly ordered multi-leg TiO2 nanotubes (MLTNTs) functionalized with platinized cyanographene are proposed as a hybrid photoelectrode for enhanced photoelectrochemical water splitting. The platinized cyanographene and cyanographene/MLTNTs composite yielded photocurrent densities 1.66 and 1.25 times higher than those of the pristine MLTNTs nanotubes, respectively. Open circuit VOC decay (VOCD), electrochemical impedance spectroscopy (EIS), and intensity-modulated photocurrent spectroscopy (IMPS) analyses were performed to study the recombination rate, charge transfer characteristics, and transfer time of photogenerated electrons, respectively. According to the VOCD and IMPS results, the addition of (platinized) cynographene decreased the recombination rate and the transfer time of photogenerated electrons by one order of magnitude. Furthermore, EIS results showed that the (platinized) cyanographene MLTNTs composite has the lowest charge transfer resistance and therefore the highest photoelectrochemical performance.
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28
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Graphene Hybridized with Tungsten disulfide (WS2) Based Heterojunctions Photoanode Materials for High Performance Dye Sensitized Solar Cell Device (DSSCs) Applications. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01828-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Peng K, Wang H, Li X, Wang J, Cai Z, Su L, Fan X. Emerging WS 2/montmorillonite composite nanosheets as an efficient hydrophilic photocatalyst for aqueous phase reactions. Sci Rep 2019; 9:16325. [PMID: 31704969 PMCID: PMC6842000 DOI: 10.1038/s41598-019-52191-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 08/15/2019] [Indexed: 11/25/2022] Open
Abstract
Tungsten disulfide (WS2) as one of transition metal dichalcogenides exhibits excellent catalytic activity. However, its catalytic performances in aqueous phase reactions are limited by its hydrophobicity. Here, the natural hydrophilic two-dimensional clay was used to enhance the dispersibility of WS2 in aqueous phase. WS2/montmorillonite (WS2/MMT) composite nanosheets were prepared via hydrothermal synthesis of WS2 on the surface of montmorillonite from WCl6 and CH3CSNH2. The microstructure and morphology show that WS2 nanosheets are assembled parallelly on the montmorillonite with the interface interaction. Through the support of montmorillonite, WS2/MMT possesses higher photocatalytic ability for aqueous phase reactions than WS2, which could be due to the synergistic effect of higher adsorption property, higher hydrophilicity, dispersibility and more catalytic reaction site. The strategy could provide new ideas for obtaining novel hydrophilic photocatalyst with excellent performance.
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Affiliation(s)
- Kang Peng
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Hongjie Wang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Xiaoyu Li
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710064, China
| | - Jianwei Wang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhixin Cai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Lei Su
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xingyu Fan
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, 710049, China
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30
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Sturala J, Hermanová S, Artigues L, Sofer Z, Pumera M. Thiographene synthesized from fluorographene via xanthogenate with immobilized enzymes for environmental remediation. NANOSCALE 2019; 11:10695-10701. [PMID: 31120458 DOI: 10.1039/c9nr02376c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Graphene, graphene oxide and their related thiographene-, hydroxygraphene- or fluorographene-based materials have broad applications. We report on the thiol-functionalization of fluorographene via xanthogenate. Such thiographene contains 5.1 at% of sulphur in the form of thiol groups, which is the highest thiol content reported to date. Such tailored thiographene allows the immobilization of two types of enzymes. Here, we explore the functionalization of highly thiolated graphene with enzymes via physisorption or covalent linkage producing an important heterogeneous biocatalyst platform for wastewater treatment applications. Thiographene modified with a lipase from Mucor miehei can find utilization in lipid-rich wastewater treatment whereas the catalase-modified thiographene is intended for bioremediation applications. Upon increasing concentration of the thiol groups on graphene, protein loading of the catalase was increased by 16% and the ester bond cleavage activity of the thiographene-immobilized lipase was 129% that of the free lipase. We expect that such a highly active heterogeneous thiographene-based biocatalyst will find a use in water remediation applications.
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Affiliation(s)
- Jiri Sturala
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 16628 Prague 6, Czech Republic.
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31
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Li B, Xu H, Ma Y, Yang S. Harnessing the unique properties of 2D materials for advanced lithium-sulfur batteries. NANOSCALE HORIZONS 2019; 4:77-98. [PMID: 32254146 DOI: 10.1039/c8nh00170g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
In the past decade, lithium-sulfur batteries have attracted tremendous attention owing to their high theoretical energy densities. The electrochemical performances of lithium-sulfur batteries are strongly dependent on the electrode materials. Among all the electrode material candidates, the application of 2D materials in lithium-sulfur batteries including a sulfur cathode, a lithium anode, a separator and/or an electrolyte has gained great success in enhancing their electrochemical performance by overcoming their intrinsic obstacles. Thus, it is necessary to summarize the relationships between the unique features of 2D materials and the electrochemical performances of lithium-sulfur batteries, guiding the development of next-generation lithium-sulfur batteries. In this review, we focus on recent advances in harnessing the unique properties of 2D materials, including their high surface area, 2D feature, high mechanical strength, plentiful active sites and functional groups to improve the electrochemical properties of sulfur cathodes, lithium anodes, electrolytes and/or separators, respectively. Finally, we propose possible directions and strategies for harnessing various properties of 2D materials to promote the development and applications of lithium-sulfur batteries.
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Affiliation(s)
- Bin Li
- Key Laboratory of Aerospace Advanced Materials and Performance of Ministry of Education, School of Materials Science & Engineering, Beihang University, Beijing, 100191, China.
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32
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Azhagiya Singam ER, Zhang Y, Magnin G, Miranda-Carvajal I, Coates L, Thakkar R, Poblete H, Comer J. Thermodynamics of Adsorption on Graphenic Surfaces from Aqueous Solution. J Chem Theory Comput 2018; 15:1302-1316. [DOI: 10.1021/acs.jctc.8b00830] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. R. Azhagiya Singam
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
| | - Yuntao Zhang
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
| | - Geraldine Magnin
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
| | - Ingrid Miranda-Carvajal
- Universidad Nacional de Colombia, sede Bogotá, Facultad de Ciencias, Departamento de Química, Carrera 30 No. 45-03, Bogotá 111321, Colombia
| | - Logan Coates
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
| | - Ravindra Thakkar
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
| | - Horacio Poblete
- Center for Bioinformatics and Molecular Simulation, Facultad de Ingeniería, Nucleo Científico Multidiciplinario-DI, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Universidad de Talca, 3460000 Talca, Chile
| | - Jeffrey Comer
- Institute of Computational Comparative Medicine, Nanotechnology Innovation Center of Kansas State, Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506-5802, United States
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33
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Tuček J, Holá K, Zoppellaro G, Błoński P, Langer R, Medved' M, Susi T, Otyepka M, Zbořil R. Zigzag sp 2 Carbon Chains Passing through an sp 3 Framework: A Driving Force toward Room-Temperature Ferromagnetic Graphene. ACS NANO 2018; 12:12847-12859. [PMID: 30516956 DOI: 10.1021/acsnano.8b08052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Stabilization of ferromagnetic ordering in graphene-based systems up to room temperature remains an important challenge owing to the huge scope for applications in electronics, spintronics, biomedicine, and separation technologies. To date, several strategies have been proposed, including edge engineering, introduction of defects and dopants, and covalent functionalization. However, these techniques are usually hampered by limited temperature sustainability of ferromagnetic ordering. Here, we describe a method for the well-controlled sp3 functionalization of graphene to synthesize zigzag conjugated sp2 carbon chains that can act as communication pathways among radical motifs. Zigzag sp2/sp3 patterns in the basal plane were clearly observed by high-resolution scanning transmission electron microscopy and provided a suitable matrix for stabilization of ferromagnetic ordering up to room temperature due to combined contributions of itinerant π-electrons and superexchange interactions. The results highlight the principal role of sp2/sp3 ratio and superorganization of radical motifs in graphene for generating room-temperature nonmetallic magnets.
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Affiliation(s)
- Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Kateřina Holá
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Piotr Błoński
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Rostislav Langer
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Miroslav Medved'
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Toma Susi
- Faculty of Physics , University of Vienna , Boltzmanngasse 5 , 1090 Vienna , Austria
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
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34
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Hermanová S, Bouša D, Mazánek V, Sedmidubský D, Plutnar J, Pumera M, Sofer Z. Fluorographene and Graphane as an Excellent Platform for Enzyme Biocatalysis. Chemistry 2018; 24:16833-16839. [PMID: 30117202 DOI: 10.1002/chem.201803397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Indexed: 11/06/2022]
Abstract
The application of enzymes is a crucial issue for current biotechnological application in pharmaceutical, as well as food and cosmetic industry. Effective platforms for enzyme immobilization are necessary for their industrial use in various biosynthesis procedures. Such platforms must provide high yield of immobilization and retain high activity at various conditions for their large-scale applications. Graphene derivatives such as hydrogenated graphene (graphane) and fluorographene can be applied for enzyme immobilization with close to 100 % yield that can result to activities of the composites significantly exceeding activity of free enzymes. The hydrophobic properties of graphene stoichiometric derivatives allowed for excellent non-covalent bonding of enzymes and their use in various organic solvents. The immobilized enzymes retain their high activities even at elevated temperatures. These findings show excellent application potential of enzyme biocatalysts immobilized on graphene stoichiometric derivatives.
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Affiliation(s)
- Soňa Hermanová
- Department of Polymer Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Daniel Bouša
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Vlastimil Mazánek
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - David Sedmidubský
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Jan Plutnar
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic.,Institute of Organic Chemistry and Biochemistry of the AS CR, v.v.i., Flemingovo nam. 542/2, 160 00, Prague 6, Czech Republic
| | - Martin Pumera
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology, Technicka 5, 166 28, Prague 6, Czech Republic
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35
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Sturala J, Ambrosi A, Sofer Z, Pumera M. Covalent Functionalization of Exfoliated Arsenic with Chlorocarbene. Angew Chem Int Ed Engl 2018; 57:14837-14840. [DOI: 10.1002/anie.201809341] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Jiri Sturala
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
| | - Adriano Ambrosi
- Division of Chemistry & Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
| | - Zdeněk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
| | - Martin Pumera
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
- Division of Chemistry & Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
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36
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Sturala J, Ambrosi A, Sofer Z, Pumera M. Covalent Functionalization of Exfoliated Arsenic with Chlorocarbene. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiri Sturala
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
| | - Adriano Ambrosi
- Division of Chemistry & Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
| | - Zdeněk Sofer
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
| | - Martin Pumera
- Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technicka 5 166 28 Prague 6 Czech Republic
- Division of Chemistry & Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 637371 Singapore Singapore
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37
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Lai W, Liu J, Luo L, Wang X, He T, Fan K, Liu X. The Friedel-Crafts reaction of fluorinated graphene for high-yield arylation of graphene. Chem Commun (Camb) 2018; 54:10168-10171. [PMID: 30137102 DOI: 10.1039/c8cc05762a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we report the Friedel-Crafts reaction of fluorinated graphene with aryl molecules including methylbenzene, chlorobenzene and polystyrene. The reaction achieved the high-yield arylation functionalization of graphene under mild reaction conditions and extends the range of the Friedel-Crafts reaction to the field of two-dimensional materials.
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Affiliation(s)
- Wenchuan Lai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu 610065, People's Republic of China.
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38
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Heng Cheong Y, Nasir MZM, Bakandritsos A, Pykal M, Jakubec P, Zbořil R, Otyepka M, Pumera M. Cyanographene and Graphene Acid: The Functional Group of Graphene Derivative Determines the Application in Electrochemical Sensing and Capacitors. ChemElectroChem 2018. [DOI: 10.1002/celc.201800675] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yi Heng Cheong
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
| | - Muhammad Zafir Mohamad Nasir
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
| | - Aristides Bakandritsos
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Martin Pykal
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Petr Jakubec
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Radek Zbořil
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Michal Otyepka
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 16628 Prague Czech Republic
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39
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Matochová D, Medved’ M, Bakandritsos A, Steklý T, Zbořil R, Otyepka M. 2D Chemistry: Chemical Control of Graphene Derivatization. J Phys Chem Lett 2018; 9:3580-3585. [PMID: 29890828 PMCID: PMC6038093 DOI: 10.1021/acs.jpclett.8b01596] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Controllable synthesis of graphene derivatives with defined composition and properties represents the holy grail of graphene chemistry, especially in view of the low reactivity of graphene. Recent progress in fluorographene (FG) chemistry has opened up new routes for synthesizing a plethora of graphene derivatives with widely applicable properties, but they are often difficult to control. We explored nucleophilic substitution on FG combining density functional theory calculations with experiments to achieve accurate control over the functionalization process. In-depth analysis revealed the complexity of the reaction and identified basic rules for controlling the 2D chemistry. Their application, that is, choice of solvent and reaction time, enabled facile control over the reaction of FG with N-octylamine to form graphene derivatives with tailored content of the alkylamine functional group (2.5-7.5% N atomic content) and F atoms (31.5-3.5% F atomic content). This work substantially extends prospects for the controlled covalent functionalization of graphene.
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40
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Marsoner Steinkasserer LE, Pohl V, Paulus B. Cyanographone and isocyanographone - Two asymmetrically functionalized graphene pseudohalides and their potential use in chemical sensing. J Chem Phys 2018; 148:084703. [PMID: 29495762 DOI: 10.1063/1.5009405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Graphene pseudohalides are natural candidates for use in molecular sensing due to their greater chemical activity as compared to both graphene halides and pristine graphene. Though their study is still in its infancy, being hindered until recently by the unavailability of both selective and efficient procedures for their synthesis, they promise to considerably widen the application potential of chemically modified graphenes. Herein, we employ van der Waals density functional theory to study the structural and electronic properties of two selected graphene pseudohalides, namely, cyanographone and isocyanographone and investigate the potential use of the latter as a chemical sensor via electron transport calculations.
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Affiliation(s)
| | - Vincent Pohl
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, D-14195 Berlin, Germany
| | - Beate Paulus
- Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 3, D-14195 Berlin, Germany
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41
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Tang SZ, Bian HL, Zhan ZS, Chen ME, Lv JW, Xie S, Zhang FM. p-Toluenesulfonic acid catalysed fluorination of α-branched ketones for the construction of fluorinated quaternary carbon centres. Chem Commun (Camb) 2018; 54:12377-12380. [DOI: 10.1039/c8cc06643d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A catalytic and concise fluorination of α-branched ketones for the construction of the challenging quaternary C–F bond could be achieved.
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Affiliation(s)
- Shi-Zhong Tang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Hong-Li Bian
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Zong-Song Zhan
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Meng-En Chen
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Jian-Wei Lv
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Shaolei Xie
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry
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42
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Rajeena U, Akbar M, Raveendran P, Ramakrishnan RM. Fluorographite to hydroxy graphene to graphene: a simple wet chemical approach for good quality graphene. NEW J CHEM 2018. [DOI: 10.1039/c8nj01392f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Good quality graphene is prepared in a scalable manner from fluorographite by nucleophilic substitution of F with OH− ions.
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Affiliation(s)
- Uruniyengal Rajeena
- Department of Chemistry
- Sree Neelakanta Govt. Sanskrit College
- Pattambi, Affiliated to University of Calicut
- India
| | - Mohammed Akbar
- Department of Chemistry
- Sree Neelakanta Govt. Sanskrit College
- Pattambi, Affiliated to University of Calicut
- India
| | | | - Resmi M. Ramakrishnan
- Department of Chemistry
- Sree Neelakanta Govt. Sanskrit College
- Pattambi, Affiliated to University of Calicut
- India
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43
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Lai W, Yuan Y, Wang X, Liu Y, Li Y, Liu X. Radical mechanism of a nucleophilic reaction depending on a two-dimensional structure. Phys Chem Chem Phys 2017; 20:489-497. [PMID: 29214274 DOI: 10.1039/c7cp06708a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of nucleophilic substitution deserves more investigation to include more reaction systems such as two-dimensional (2D) materials. In this study, we used fluorinated graphene (FG) as a representative 2D material to reveal the in-depth mechanism of its defluorination and nucleophilic substitution reaction under attack of common nucleophiles to explore the chemistry of 2D materials and enrich the research on the nucleophilic substitution reaction. DFT calculations and electron paramagnetic resonance spectroscopy (EPR) demonstrated that defluorination of FG occurred via a radical mechanism after a single electron transfer (SET) reaction between the nucleophile and C-F bond, and a spin center was generated on the nanosheet and fluorine anion. Moreover, neither the SN1 nor SN2 mechanism was suggested to be appropriate for the substitution reaction of FG with a 2D structure due to the corresponding kinetics or thermodynamics disadvantage; hence, its nucleophilic substitution was proved to occur via a radical mechanism initiated by the defluorination step. The proposed substitution mechanism of FG demonstrates that nucleophilic substitution via a radical mechanism can also be applied to the attacking process of common nucleophiles without any particular conditions. Furthermore, it has been discovered that triethylamine without active hydrogen can be covalently attached to graphene nanosheets via a nucleophilic substitution reaction with FG; this further indicates a radical process for the nucleophilic substitution of FG rather than an SN1 or SN2 mechanism. The detailed process of the nucleophilic substitution reaction of FG was revealed to occur via a radical mechanism depending on the 2D structure of FG, which could also represent the typical characteristic of 2D chemistry.
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Affiliation(s)
- Wenchuan Lai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu 610065, People's Republic of China.
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44
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Gong P, Zhao Q, Dai D, Zhang S, Tian Z, Sun L, Ren J, Liu Z. Functionalized Ultrasmall Fluorinated Graphene with High NIR Absorbance for Controlled Delivery of Mixed Anticancer Drugs. Chemistry 2017; 23:17531-17541. [PMID: 28898464 DOI: 10.1002/chem.201702917] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Peiwei Gong
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Qiao Zhao
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Dujuan Dai
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Shumiao Zhang
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Zhenzhen Tian
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Lu Sun
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Jiashuo Ren
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
| | - Zhe Liu
- Department of Chemistry and Chemical Engineering, Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis, and Key Laboratory of Pharmaceutical Intermediate, and Analysis of Natural Medicine, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong, P.R. China
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45
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Bouša D, Huber Š, Sedmidubský D, Pumera M, Sofer Z. Planar Polyolefin Nanostripes: Perhydrogenated Graphene. Chemistry 2017. [PMID: 28639289 DOI: 10.1002/chem.201702691] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Graphene hydrogenation gives an opportunity to introduce a band gap into the graphene electronic structure. Complete hydrogenation may lead to the graphane, a fully hydrogenated counterpart of graphene. However, pure graphane has not been successfully prepared to this day. Here, we show that hydrogenation of single-walled carbon nanotubes by means of Birch reduction leads to graphene-based carbon nanostripes with uniform dimensions. Such a material exhibits interesting electrocatalytic and magnetic properties as well huge potential for hydrogen storage since the weight concentration of hydrogen is 8.78 wt.% corresponding to the composition of C1 H1.22 O0.05 and thus exceeding the theoretical concentration in pure graphane (7.74 wt.%). The obtained concentration of hydrogen is the highest value ever reported for any graphene-based material and significantly exceeds the ultimate goal of the U.S. Department of Energy for a hydrogen storage material of 7.5 wt.%.
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Affiliation(s)
- Daniel Bouša
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Štěphán Huber
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - David Sedmidubský
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Martin Pumera
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic.,Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic
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