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Xiao X, Hu C, Dai Q, Xiong C, Liu D, Jin H. Combined nano/micro-structure of Ni12P5-Ni2P nanorod array for effective wide pH range HER and overall alkaline water-splitting. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Structural analysis, FTIR study and optical characteristics of graphene doped Bi2O3 thin film prepared by modified sol–gel technique. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Soni J, Sethiya A, Sahiba N, Agarwal S. Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6162] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jay Soni
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Ayushi Sethiya
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Nusrat Sahiba
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Shikha Agarwal
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
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Litvin AP, Babaev AA, Parfenov PS, Dubavik A, Cherevkov SA, Baranov MA, Bogdanov KV, Reznik IA, Ilin PO, Zhang X, Purcell-Milton F, Gun'ko YK, Fedorov AV, Baranov AV. Ligand-Assisted Formation of Graphene/Quantum Dot Monolayers with Improved Morphological and Electrical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E723. [PMID: 32290368 PMCID: PMC7221828 DOI: 10.3390/nano10040723] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 12/29/2022]
Abstract
Hybrid nanomaterials based on graphene and PbS quantum dots (QDs) have demonstrated promising applications in optoelectronics. However, the formation of high-quality large-area hybrid films remains technologically challenging. Here, we demonstrate that ligand-assisted self-organization of covalently bonded PbS QDs and reduced graphene oxide (rGO) can be utilized for the formation of highly uniform monolayers. After the post-deposition ligand exchange, these films demonstrated high conductivity and photoresponse. The obtained films demonstrate a remarkable improvement in morphology and charge transport compared to those obtained by the spin-coating method. It is expected that these materials might find a range of applications in photovoltaics and optoelectronics.
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Affiliation(s)
- Aleksandr P Litvin
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Anton A Babaev
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Peter S Parfenov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Aliaksei Dubavik
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Sergei A Cherevkov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Mikhail A Baranov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Kirill V Bogdanov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Ivan A Reznik
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Pavel O Ilin
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Xiaoyu Zhang
- College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Finn Purcell-Milton
- School of Chemistry and CRANN Trinity College Dublin, Dublin 2, Dublin D02 PN40, Ireland
| | - Yurii K Gun'ko
- School of Chemistry and CRANN Trinity College Dublin, Dublin 2, Dublin D02 PN40, Ireland
| | - Anatoly V Fedorov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
| | - Alexander V Baranov
- Center of Information Optical Technology, ITMO University, St. Petersburg 197101, Russia
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Phasuksom K, Prissanaroon-Ouajai W, Sirivat A. A highly responsive methanol sensor based on graphene oxide/polyindole composites. RSC Adv 2020; 10:15206-15220. [PMID: 35495439 PMCID: PMC9052212 DOI: 10.1039/d0ra00158a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/31/2020] [Indexed: 01/06/2023] Open
Abstract
Graphene-based materials, namely commercial graphene (cm-G), commercial graphene oxide (cm-GO), reduced graphene oxide (rGO), and synthesized graphene oxide (OIHM-GO), and their composites with polyindole (PIn) were used as sensing materials for methanol vapor. The synthesized graphene oxide was prepared by the optimized improved Hummers' method. rGO was prepared from cm-GO by two different methods: thermally mild reduction at 120 °C to yield T-rGO and chemical reduction by ascorbic acid to yield C-rGO. Graphene-based material/polyindole composites were prepared by in situ polymerization. In this report, the sensing responses were evaluated from the responsive electrical currents at room temperature. cm-GO showed the highest methanol response because it possessed the highest number of oxygen species, which act as the active sites. The relative electrical conductivity response of the in situ cm-GO/dPIn composite to methanol was the highest amongst the composites. The in situ OIHM-GO/dPIn composite possessed the high relative conductivity response of 81.89 ± 2.12 at 11.36 ppm, a sensitivity of 7.37 ppm−1 with R2 of 0.9967 in the methanol concentration range of 1.14–11.36 ppm, a theoretical LOD of 0.015 ppm, and repeatability of at least 4 cycles with good selectivity. This work represents the first report of the preparation and testing of graphene-based materials/polyindole composites as methanol sensors. The methanol response depended on the hydrophilicity of the composite materials; GO/dPIn demonstrated the highest oxygen content and the highest hydrophilicity, thus inducing high methanol adsorption into the inner layer of the composite.![]()
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Affiliation(s)
- Katesara Phasuksom
- Conductivity and Electroactive Polymers Research Unit
- The Petroleum and Petrochemical College
- Chulalongkorn University
- Bangkok
- Thailand
| | | | - Anuvat Sirivat
- Conductivity and Electroactive Polymers Research Unit
- The Petroleum and Petrochemical College
- Chulalongkorn University
- Bangkok
- Thailand
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Sun J, Choi Y, Choi YJ, Kim S, Park JH, Lee S, Cho JH. 2D-Organic Hybrid Heterostructures for Optoelectronic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803831. [PMID: 30786064 DOI: 10.1002/adma.201803831] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 01/10/2019] [Indexed: 05/08/2023]
Abstract
The unique properties of hybrid heterostructures have motivated the integration of two or more different types of nanomaterials into a single optoelectronic device structure. Despite the promising features of organic semiconductors, such as their acceptable optoelectronic properties, availability of low-cost processes for their fabrication, and flexibility, further optimization of both material properties and device performances remains to be achieved. With the emergence of atomically thin 2D materials, they have been integrated with conventional organic semiconductors to form multidimensional heterostructures that overcome the present limitations and provide further opportunities in the field of optoelectronics. Herein, a comprehensive review of emerging 2D-organic heterostructures-from their synthesis and fabrication to their state-of-the-art optoelectronic applications-is presented. Future challenges and opportunities associated with these heterostructures are highlighted.
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Affiliation(s)
- Jia Sun
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha, Hunan, 410083, P. R. China
| | - Yongsuk Choi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Young Jin Choi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Seongchan Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Jin-Hong Park
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Sungjoo Lee
- Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- Department of Nano Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Jeong Ho Cho
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 440-746, Republic of Korea
- Department of Nano Engineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
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Emerging Trends in the Syntheses of Heterocycles Using Graphene-based Carbocatalysts: An Update. Top Curr Chem (Cham) 2019; 377:13. [PMID: 31054016 DOI: 10.1007/s41061-019-0238-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 04/16/2019] [Indexed: 01/24/2023]
Abstract
Graphene-based carbocatalysts owing to numerous amazing properties such as large specific surface area, high intrinsic mobility, excellent thermal and electrical conductivities, chemical stability, ease of functionalization, simple method of preparation, effortless recovery and recyclability have gained a superior position amongst the conventional homogeneous and heterogeneous catalysts. In this review, an endeavor has been made to highlight the syntheses of diverse heterocyclic compounds catalyzed by graphene-based catalysts. Further, the study also reveals that all the catalysts could be reused several times without significant loss in their catalytic activity. Additionally, most of the reactions catalyzed by graphene-based carbocatalysts were carried out at ambient temperature and under solvent-free conditions. Thus, the graphene-based catalysts do not merely act as efficient catalysts but also serve as sustainable, green catalysts. This review is divided into various sub-sections, each of which comprehensively describes the preparation of a particular heterocyclic scaffold catalyzed by graphene-derived carbocatalyst in addition to synthesis of graphene oxide and reduced graphene oxide, functionalization, and structural features governing their catalytic properties. Synthesis of heterocycles catalyzed by graphene-based carbocatalysts.
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Ansari MO, Gauthaman K, Essa A, Bencherif SA, Memic A. Graphene and Graphene-Based Materials in Biomedical Applications. Curr Med Chem 2019; 26:6834-6850. [DOI: 10.2174/0929867326666190705155854] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 10/06/2018] [Accepted: 10/26/2018] [Indexed: 12/27/2022]
Abstract
:
Nanobiotechnology has huge potential in the field of regenerative medicine. One of the main
drivers has been the development of novel nanomaterials. One developing class of materials is graphene
and its derivatives recognized for their novel properties present on the nanoscale. In particular,
graphene and graphene-based nanomaterials have been shown to have excellent electrical, mechanical,
optical and thermal properties. Due to these unique properties coupled with the ability to tune their
biocompatibility, these nanomaterials have been propelled for various applications. Most recently, these
two-dimensional nanomaterials have been widely recognized for their utility in biomedical research. In
this review, a brief overview of the strategies to synthesize graphene and its derivatives are discussed.
Next, the biocompatibility profile of these nanomaterials as a precursor to their biomedical application
is reviewed. Finally, recent applications of graphene-based nanomaterials in various biomedical fields
including tissue engineering, drug and gene delivery, biosensing and bioimaging as well as other biorelated
studies are highlighted.
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Affiliation(s)
| | - Kalamegam Gauthaman
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Sidi A. Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, United States
| | - Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
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Qin J, Wu ZS, Zhou F, Dong Y, Xiao H, Zheng S, Wang S, Shi X, Huang H, Sun C, Bao X. Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.08.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Díez-Pascual AM, Luceño Sánchez JA, Peña Capilla R, García Díaz P. Recent Developments in Graphene/Polymer Nanocomposites for Application in Polymer Solar Cells. Polymers (Basel) 2018; 10:E217. [PMID: 30966253 PMCID: PMC6415067 DOI: 10.3390/polym10020217] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/12/2018] [Accepted: 02/21/2018] [Indexed: 11/30/2022] Open
Abstract
Graphene (G) and its derivatives, graphene oxide (GO) and reduced graphene oxide (rGO) have enormous potential for energy applications owing to their 2D structure, large specific surface area, high electrical and thermal conductivity, optical transparency, and huge mechanical strength combined with inherent flexibility. The combination of G-based materials with polymers leads to new nanocomposites with enhanced structural and functional properties due to synergistic effects. This review briefly summarizes recent progress in the development of G/polymer nanocomposites for use in polymer solar cells (PSCs). These nanocomposites have been explored as transparent conducting electrodes (TCEs), active layers (ALs) and interfacial layers (IFLs) of PSCs. Photovoltaic parameters, such as the open-circuit voltage (Voc), short-circuit current density (Jsc), fill factor (FF) and power-conversion efficiency (PCE) are compared for different device structures. Finally, future perspectives are discussed.
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Affiliation(s)
- Ana Maria Díez-Pascual
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, Alcalá University, 28871 Madrid, Spain.
| | - José Antonio Luceño Sánchez
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, Faculty of Biology, Environmental Sciences and Chemistry, Alcalá University, 28871 Madrid, Spain.
| | - Rafael Peña Capilla
- Department of Signal Theory and Communication, Polytechnic High School, Alcalá University, 28871 Madrid, Spain.
| | - Pilar García Díaz
- Department of Signal Theory and Communication, Polytechnic High School, Alcalá University, 28871 Madrid, Spain.
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Hu HW, Haider G, Liao YM, Roy PK, Ravindranath R, Chang HT, Lu CH, Tseng CY, Lin TY, Shih WH, Chen YF. Wrinkled 2D Materials: A Versatile Platform for Low-Threshold Stretchable Random Lasers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703549. [PMID: 28991394 DOI: 10.1002/adma.201703549] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/17/2017] [Indexed: 06/07/2023]
Abstract
A stretchable, flexible, and bendable random laser system capable of lasing in a wide range of spectrum will have many potential applications in next- generation technologies, such as visible-spectrum communication, superbright solid-state lighting, biomedical studies, fluorescence, etc. However, producing an appropriate cavity for such a wide spectral range remains a challenge owing to the rigidity of the resonator for the generation of coherent loops. 2D materials with wrinkled structures exhibit superior advantages of high stretchability and a suitable matrix for photon trapping in between the hill and valley geometries compared to their flat counterparts. Here, the intriguing functionalities of wrinkled reduced graphene oxide, single-layer graphene, and few-layer hexagonal boron nitride, respectively, are utilized to design highly stretchable and wearable random laser devices with ultralow threshold. Using methyl-ammonium lead bromide perovskite nanocrystals (PNC) to illustrate the working principle, the lasing threshold is found to be ≈10 µJ cm-2 , about two times less than the lowest value ever reported. In addition to PNC, it is demonstrated that the output lasing wavelength can be tuned using different active materials such as semiconductor quantum dots. Thus, this study is very useful for the future development of high-performance wearable optoelectronic devices.
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Affiliation(s)
- Han-Wen Hu
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Golam Haider
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Ming Liao
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Pradip Kumar Roy
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Rini Ravindranath
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Cheng-Hsin Lu
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Chang-Yang Tseng
- Department of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, 202, Taiwan
| | - Tai-Yung Lin
- Department of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, 202, Taiwan
| | - Wei-Heng Shih
- Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Yang-Fang Chen
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
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