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Josline MJ, Ghods S, Kosame S, Choi JH, Kim W, Kim S, Chang S, Hyun SH, Kim SI, Moon JY, Park HG, Cho SB, Ju H, Lee JH. Uniform Synthesis of Bilayer Hydrogen Substituted Graphdiyne for Flexible Piezoresistive Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307276. [PMID: 38196162 DOI: 10.1002/smll.202307276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 12/21/2023] [Indexed: 01/11/2024]
Abstract
Graphdiyne (GDY) has garnered significant attention as a cutting-edge 2D material owing to its distinctive electronic, optoelectronic, and mechanical properties, including high mobility, direct bandgap, and remarkable flexibility. One of the key challenges hindering the implementation of this material in flexible applications is its large area and uniform synthesis. The facile growth of centimeter-scale bilayer hydrogen substituted graphdiyne (Bi-HsGDY) on germanium (Ge) substrate is achieved using a low-temperature chemical vapor deposition (CVD) method. This material's field effect transistors (FET) showcase a high carrier mobility of 52.6 cm2 V-1 s-1 and an exceptionally low contact resistance of 10 Ω µm. By transferring the as-grown Bi-HsGDY onto a flexible substrate, a long-distance piezoresistive strain sensor is demonstrated, which exhibits a remarkable gauge factor of 43.34 with a fast response time of ≈275 ms. As a proof of concept, communication by means of Morse code is implemented using a Bi-HsGDY strain sensor. It is believed that these results are anticipated to open new horizons in realizing Bi-HsGDY for innovative flexible device applications.
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Affiliation(s)
- Mukkath Joseph Josline
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Soheil Ghods
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Saikiran Kosame
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
- Department of Physics, Gachon University, Seongnam, South Korea
| | - Jun-Hui Choi
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Woongchan Kim
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Sein Kim
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - SooHyun Chang
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Sang Hwa Hyun
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Seung-Il Kim
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
- Department of Mechanical Engineering and Materials Science, Washington University in Saint Louis, Saint Louis, MO, USA
| | - Ji-Yun Moon
- Department of Mechanical Engineering and Materials Science, Washington University in Saint Louis, Saint Louis, MO, USA
| | - Hyeong Gi Park
- AI-Superconvergence KIURI Translational Research Center, Ajou University, School of Medicine, Suwon, 16499, South Korea
| | - Sung Beom Cho
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
| | - Heongkyu Ju
- Department of Physics, Gachon University, Seongnam, South Korea
| | - Jae-Hyun Lee
- Department of Materials Science and Engineering, Ajou University, Suwon, 16499, South Korea
- Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea
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An C, Wang T, Wang S, Chen X, Han X, Wu S, Deng Q, Zhao L, Hu N. Ultrasonic-assisted preparation of two-dimensional materials for electrocatalysts. ULTRASONICS SONOCHEMISTRY 2023; 98:106503. [PMID: 37393853 PMCID: PMC10316695 DOI: 10.1016/j.ultsonch.2023.106503] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/11/2023] [Accepted: 06/21/2023] [Indexed: 07/04/2023]
Abstract
Developing green, environmental, sustainable new energy sources is an important problem to be solved in the world. Among the new energy technologies, water splitting system, fuel cell technology and metal-air battery technology are the main energy production and conversion methods, which involve three main electrocatalytic reactions, hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). The efficiency of the electrocatalytic reaction and the power consumption are very dependent on the activity of the electrocatalysts. Among various electrocatalysts, the two-dimensional (2D) materials have received widespread attention due to multiple advantages, such as their easy availability and low price. What' important is that they have adjustable physical and chemical properties. It is possible to develop them as electrocatalysts to replace the noble metals. Therefore, the design of two-dimensional electrocatalysts is a focus in the research area. Some recent advances in ultrasound-assisted preparation of two-dimensional (2D) materials have been overviewed according to the kind of materials in this review. Firstly, the effect of the ultrasonic cavitation and its applications in the synthesis of inorganic materials are introduced. The ultrasonic-assisted synthesis of representative 2D materials for example transition metal dichalcogenides (TMDs), graphene, layered double metal hydroxide (LDH), and MXene, and their catalytic properties as electrocatalysts are discussed in detail. For example, the CoMoS4 electrocatalysts have been synthesized through a facile ultrasound-assisted hydrothermal method. The obatined HER and OER overpotential of CoMoS4 electrode is 141 and 250 mV, respectively. This review points out some problems that need to be solved urgently at present, and provides some ideas for designing and constructing two-dimensional materials with better electrocatalytic performance.
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Affiliation(s)
- Cuihua An
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China; Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, Guangdong, China
| | - Tianyu Wang
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Shikang Wang
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Xiaodong Chen
- Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University, Huizhou 516001, Guangdong, China
| | - Xiaopeng Han
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Shuai Wu
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China.
| | - Qibo Deng
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China; Advanced Equipment Research Institute Co., Ltd. of HEBUT, Tianjin 300401, China.
| | - Libin Zhao
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China; Advanced Equipment Research Institute Co., Ltd. of HEBUT, Tianjin 300401, China
| | - Ning Hu
- Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China; Advanced Equipment Research Institute Co., Ltd. of HEBUT, Tianjin 300401, China.
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He S, Wu B, Xia Z, Guo P, Li Y, Song S. One-pot synthesis of gamma-graphyne supported Pd nanoparticles with high catalytic activity. NANOSCALE ADVANCES 2023; 5:2487-2492. [PMID: 37143790 PMCID: PMC10153096 DOI: 10.1039/d3na00096f] [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: 02/13/2023] [Accepted: 03/20/2023] [Indexed: 05/06/2023]
Abstract
As a unique member of the graphyne family, gamma-graphyne (γ-graphyne) is a novel kind of 2D carbon allotrope with potential high carrier mobility and large surface area. It remains a great challenge to synthesize graphynes with targeted topologies and good performance. Herein, a novel one-pot method was applied to the synthesis of γ-graphyne using hexabromobenzene and acetylenedicarboxylic acid via a Pd-catalyzed decarboxylative coupling reaction, which is easy to perform with mild reaction conditions, facilitating the possibility of mass production. As a result, the synthesized γ-graphyne reveals a two-dimensional γ-graphyne structure consisting of 1 : 1 sp/sp2 hybridized carbon atoms. Furthermore, γ-graphyne as a carrier for Pd (Pd/γ-graphyne) displayed a superior catalytic activity for the reduction of 4-nitrophenol with a short reaction time and high yields, even in aqueous media under aerobic conditions. Compared with Pd/GO, Pd/HGO, Pd/CNT, and commercial Pd/C, Pd/γ-graphyne showed more excellent catalytic performance with lower palladium loadings. Thus we expect that the novel approach for the synthesis of γ-graphyne will boost research on the design and application of graphyne-type functional materials for catalysis.
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Affiliation(s)
- Shan He
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
| | - Bin Wu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
| | - Ziwei Xia
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
| | - Panxiang Guo
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
| | - Yao Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
| | - Shiqiang Song
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science Shanghai 201620 People's Republic of China
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Wang Q, Li Z, Wang P, Xu Q, Zhang Z, Wang Z, Huang Y, Liu YG. Q-switched and vector soliton pulses from an Er-doped fiber laser with high stability based on a γ-graphyne saturable absorber. NANOSCALE 2023; 15:7566-7576. [PMID: 37039004 DOI: 10.1039/d2nr05737a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
As a Dirac material, an allotrope of graphene, namely γ-graphyne (γ-GY), is proved to have excellent nonlinear optical properties. Unfortunately, the saturable absorption properties and ultrafast photonics applications of γ-GY at the 1.5 μm band, which play vital roles in optical communication, have not been reported so far. Herein, γ-GY nanosheets (NSs) are prepared by an improved mechanochemical method, and a saturable absorber (SA) is fabricated by a laser-induced deposition method. The modulation depth (MD) and saturable fluence at 1.5 μm are found to be 5.40% and 23.46 μJ cm-2, respectively. Consequently, by inserting the as-prepared SA into an Er3+-doped fiber laser (EDFL), Q-switching and mode-locking operation with high stability are realized. Also, the mode-locking pulses are verified to be polarization-locked vector solitons (PLVSs) based on further study. With increasing pump power, the phase difference between the two orthogonal components increases, leading to the evolution of state of polarization (SOP). Additionally, the degrees of polarization (DOPs) are measured and all reach more than 97%, meaning high polarization stability. Therefore, this work not only broadens the application scope of γ-GY in ultrafast photonics, but also provides an important foundation for the study of soliton dynamics.
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Affiliation(s)
- Qingbo Wang
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Zhuo Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Pan Wang
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Qiaoqiao Xu
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Zhiwei Zhang
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Zhi Wang
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
| | - Yi Huang
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yan-Ge Liu
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, China.
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Li H, Lim JH, Lv Y, Li N, Kang B, Lee JY. Graphynes and Graphdiynes for Energy Storage and Catalytic Utilization: Theoretical Insights into Recent Advances. Chem Rev 2023; 123:4795-4854. [PMID: 36921251 DOI: 10.1021/acs.chemrev.2c00729] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Carbon allotropes have contributed to all aspects of people's lives throughout human history. As emerging carbon-based low-dimensional materials, graphyne family members (GYF), represented by graphdiyne, have a wide range potential applications due to their superior physical and chemical properties. In particular, graphdiyne (GDY), as the leader of the graphyne family, has been practically applied to various research fields since it was first successfully synthesized. GYF have a large surface area, both sp and sp2 hybridization, and a certain band gap, which was considered to originate from the overlap of carbon 2pz orbitals and the inhomogeneous π-bonds of carbon atoms in different hybridization forms. These properties mean GYF-based materials still have many potential applications to be developed, especially in energy storage and catalytic utilization. Since most of the GYF have yet to be synthesized and applications of successfully synthesized GYF have not been developed for a long time, theoretical results in various application fields should be shared to experimentalists to attract more intentions. In this Review, we summarized and discussed the synthesis, structural properties, and applications of GYF-based materials from the theoretical insights, hoping to provide different viewpoints and comments.
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Affiliation(s)
- Hao Li
- Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Jong Hyeon Lim
- Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Yipin Lv
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Nannan Li
- Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
| | - Baotao Kang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Jin Yong Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Korea
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Zhu Q, Hu Y, Chen H, Meng C, Shang Y, Hao C, Wei S, Wang Z, Lu X, Liu S. Graphdiyne supported Ag-Cu tandem catalytic scheme for electrocatalytic reduction of CO 2 to C 2+ products. NANOSCALE 2023; 15:2106-2113. [PMID: 36648138 DOI: 10.1039/d2nr05399c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The electrochemical CO2 reduction reaction (CO2RR) to added-value C2+ products is a worthy way to effectively reduce CO2 levels in the atmosphere. Cu nanomaterials have been proposed as efficient CO2RR catalysts for producing C2+ products; however, the difficulties in controlling their efficiency and selectivity hinder their applications. Herein, we propose a simple routine to construct a graphdiyne (GDY) supported Ag-Cu nanocluster as a C2+ product-selective electrocatalyst and optimize the composition by electrochemical performance screening. The synthesized Ag-Cu nanoclusters are uniformly distributed on the surface of GDY with particle sizes constricted to 3.7 nm due to the strong diyne-Cu interaction. Compared to Cu/GDY, Ag-Cu/GDY tandem schemes exhibited superior CO2RR to C2+ performance with a Faraday efficiency (FE) of up to 55.1% and a current density of 48.6 mA cm-2 which remain stable for more than 33 hours. Theoretical calculations show that the adsorption energy of CO is much higher on Cu (-1.066 eV) than on Ag (-0.615 eV), thus promoting the drift of *CO from Ag to Cu. Moreover, the calculations indicate that the key C-C coupling reaction of *CO with *COH is more favored on Ag-Cu/GDY than on the original Cu/GDY which contributes to the formation of C2+ products. Our findings shed light on a new strategy of combining a GDY support with a tandem catalytic scheme for developing new CO2RR catalysts with superior selectivity and activity for C2+ products.
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Affiliation(s)
- Qiuying Zhu
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Yuying Hu
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Hongyu Chen
- College of Science, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China
| | - Chen Meng
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Yizhu Shang
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Chengcheng Hao
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Shuxian Wei
- College of Science, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China
| | - Zhaojie Wang
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Xiaoqing Lu
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
| | - Siyuan Liu
- School of Materials Science and Engineering, China University of Petroleum, No. 66 Changjiang West road, Huangdao District, Qingdao, Shandong 266580, P. R. China.
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Mechanical and gas adsorption properties of graphene and graphynes under biaxial strain. Sci Rep 2022; 12:22393. [PMID: 36575211 PMCID: PMC9794739 DOI: 10.1038/s41598-022-27069-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
The exceptional properties of two-dimensional (2D) solids have motivated extensive research, which revealed the possibility of controlling many characteristics of these materials through strain. For instance, previous investigations demonstrated that compressive deformation could be used to direct the chemisorption of atomic hydrogen and oxygen. Still, to our knowledge, there is no work detailing how strain affects the adsorption isotherms of 2D materials and the adsorption properties of materials such as the graphynes, which are monolayers composed of sp and sp[Formula: see text] carbon atoms. In the present work, we analyze how biaxial tensile deformation changes the adsorption properties of four 2D materials (graphene, [Formula: see text]-graphyne, [Formula: see text]-graphyne, and [Formula: see text]-graphyne). To achieve this, we perform Monte Carlo Grand Canonical calculations to obtain the adsorption isotherms of H[Formula: see text], CO[Formula: see text], and CH[Formula: see text] on the monolayers with and without strain. And, to apply the deformation, we carry out Molecular Dynamics simulations. We find a substantial reduction in the amount of gas adsorbed on the monolayers for nearly all gas-solid combinations. This is particularly true for graphene, where 14.5% strain reduces the quantity of H[Formula: see text]/CO[Formula: see text]/CH[Formula: see text] by 44.7/64.1/41.7% at P [Formula: see text] 1 atm. To understand the results, we calculate adsorption enthalpies and analyze the gas distribution above the monolayers. We also characterize the mechanical properties of the considered solids under biaxial deformation. Finally, a comparison of pore sizes with the kinetic diameters of various gases suggests applications for the graphynes, with and without strain, in gas separation.
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Nitrogen-doped graphyne/BiOBr nanocomposites: In-situ sonochemical synthesis and boosted photocatalytic performance. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Hou N, Fang XH. Influence of Alkali Metal Doping and BN Substitution on the Second-Order Nonlinear Optical Properties of Graphyne: A Theoretical Perspective. Inorg Chem 2022; 61:10756-10767. [PMID: 35794725 DOI: 10.1021/acs.inorgchem.2c00970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electronic and nonlinear optical (NLO) properties of BN-substituted graphynes and the corresponding alkali-doped hybrid systems have been determined using density functional theory. When the carbon atoms in the graphyne are replaced by BN pairs, the highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) gap (Egap) increases to some extent, and the static first hyperpolarizabilities (β0) of the novel systems hardly increase. However, when an alkali atom is introduced on the surface of BN-substituted graphyne, the doping effect can effectively modulate the electronic and NLO properties. Doping the alkali atom can significantly narrow the wide Egap of BN-substituted graphynes in the range of 1.03-2.03 eV. Furthermore, the doping effect brings considerable β0 values to these alkali-doped systems, which are 52-3609 au for Li-doped systems and 3258-211 053 au for Na/K-doped ones. The result reveals that the β0 values of alkali-doped complexes are influenced by the atomic number of alkali metals and the proportion of BN pairs. The nature of the excellent NLO responses of alkali-doped complexes can be understood by the low excitation energy of the crucial excited state and the analysis of the first hyperpolarizability density. Besides, these alkali-doped complexes have a deep-ultraviolet working region. Therefore, the combined effect of alkali metal doping and BN substitution can be an excellent strategy to design novel high-performance NLO materials based on graphyne.
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Affiliation(s)
- Na Hou
- Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material Science, Shanxi Normal University, Taiyuan 030031, China
| | - Xiao-Hui Fang
- Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material Science, Shanxi Normal University, Taiyuan 030031, China
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Chen X, Jiang X, Yang N. Graphdiyne Electrochemistry: Progress and Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201135. [PMID: 35429089 DOI: 10.1002/smll.202201135] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Graphdiyne, a carbon allotrope, was synthesized in 2010 for the first time. It consists of two acetylene bonds between adjacent benzene rings. Graphdiyne and its composites thus exhibit ultrahigh intrinsic electrochemical activities. As "star" electrode materials, they have been utilized for various electrochemical applications. With the aim of giving a full screen of graphdiyne electrochemistry, this review starts from the history of graphdiyne materials, followed by their structural and electrochemical features. Recent progress and achievements in the synthesis of graphdiyne materials and their composites are overviewed. Subsequently, various electrochemical applications of graphdiyne materials and their composites are summarized, covering those in the fields of electrochemical energy conversion, electrochemical energy storage, and electrochemical sensing. The perspectives of graphdiyne electrochemistry are also discussed and outlined.
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Affiliation(s)
- Xinyue Chen
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Xin Jiang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
| | - Nianjun Yang
- Institute of Materials Engineering, University of Siegen, 57076, Siegen, Germany
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Sajid H, Khan S, Ayub K, Amjad Gilani M, Mahmood T, Farooq U, Akhter MS. Ab initio study for superior sensitivity of graphyne nanoflake towards nitrogen halides over ammonia. J Mol Model 2022; 28:161. [PMID: 35597854 DOI: 10.1007/s00894-022-05159-y] [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: 01/13/2022] [Accepted: 05/12/2022] [Indexed: 11/30/2022]
Abstract
Graphyne (GYN) has received immense attention in gas adsorption applications due to its large surface area. The adsorption of toxic ammonia and nitrogen halides gaseous molecules on graphyne has been theoretically studied at ωB97XD/6-31 + G(d, p) level of DFT. The counterpoise corrected interaction energies of NH3, NF3, NCl3, and NBr3 molecules with GYN are - 4.73, - 2.27, - 5.22, and - 7.19 kcal mol-1, respectively. Symmetry-adapted perturbation theory (SAPT0) and noncovalent interaction index (NCI) reveal that the noncovalent interaction between analytes and GYN is dominated by dispersion forces. The significant change in electronic behavior, i.e., energies of HOMO and LUMO orbitals and NBO charge transfer correspond to the pronounced sensitivity of GYN towards considered analytes, especially NBr3. Finally, TD-DFT calculation reveals a decrease in electronic transition energies and shifting of adsorption to a longer wavelength. The recovery time for NX3@GYN is observed in nanoseconds, which is many orders of magnitude smaller than the reported systems. The recovery time is further decreased with increasing temperature, indicating that the GYN benefits from a short recovery time as a chemical sensor.
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Affiliation(s)
- Hasnain Sajid
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Sidra Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Khurshid Ayub
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Tariq Mahmood
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan. .,Department of Chemistry, College of Science, University of Bahrain, P. O. Box 32038, Zallaq, Bahrain.
| | - Umar Farooq
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Mohammed Salim Akhter
- Department of Chemistry, College of Science, University of Bahrain, P. O. Box 32038, Zallaq, Bahrain
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Ball milling synthesis of porous g-C3N4 ultrathin nanosheets functionalized with alkynyl groups for strengthened photocatalytic activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120097] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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14
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Fan Z, Guo X, Yang M, Jin Z. Mechanochemical preparation and application of graphdiyne coupled with CdSe nanoparticles for efficient photocatalytic hydrogen production. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64053-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Yao F, Wang W, Shi H, Xu Z, Zeng M, Hu Y, Liu L, Ji X. Graphynes: Electronic Properties, Synthesis, and Applications in Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04279] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fengting Yao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Wei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Haiting Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Zhiwei Xu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Ming Zeng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yanli Hu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Liyan Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xinyi Ji
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
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16
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Application of deep eutectic solvents modified oxidized Hydrogen-substituted graphyne in adsorption and electrochemistry. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Mohebbi E, Seyyed Fakhrabadi MM. Electronic, optical, mechanical, and thermal properties of diphenylacetylene-based graphyne nanosheet using density functional theory. NANOTECHNOLOGY 2021; 32:405705. [PMID: 34157684 DOI: 10.1088/1361-6528/ac0d81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/21/2021] [Indexed: 06/13/2023]
Abstract
In this paper, the structural stability, electronic, optical, mechanical, and thermal properties of diphenylacetylene-based graphyne (DPAG) nanosheet are investigated using first-principle calculations based on density functional theory (DFT). The absolute value of the calculated cohesive energy reveals that DPAG nanosheet is a structurally stable two-dimensional material. Also, in the results of phononic dispersion curves, the absence of imaginary frequencies confirms the dynamic stability of this novel material. In addition, the theoretical electronic band structure and density of states reveal the semiconducting nature of DPAG nanosheet. The optical analysis shows that the first absorption peaks of the imaginary and real parts of dielectric constants along the in-plane and out-of-plane polarizations of DPAG monolayer occur in the visible range of the electromagnetic spectrum. On the other hand, the DPAG nanosheet exhibits orthotropic elastic behavior with four independent constants comparable with the data of similar materials available in the literature. Moreover, DFT calculations of the lattice thermal conductivity of DPAG reveals an anomalously very low thermal conductivity of this nanosheet showing its perfect thermal non-conductivity. Our results provide deep insights into the potential applications of DPAG nanosheet for the design of new optoelectronic/nanoelectronic devices.
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Affiliation(s)
- Elaheh Mohebbi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mir Masoud Seyyed Fakhrabadi
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
- Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, Delft, 2628 CD, The Netherlands
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18
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Selvamani T, Anandan S, Asiri AM, Maruthamuthu P, Ashokkumar M. Preparation of MgTi 2O 5 nanoparticles for sonophotocatalytic degradation of triphenylmethane dyes. ULTRASONICS SONOCHEMISTRY 2021; 75:105585. [PMID: 34087757 PMCID: PMC8182103 DOI: 10.1016/j.ultsonch.2021.105585] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 05/14/2023]
Abstract
MgTi2O5 (magnesium dititanate) nanoparticles were prepared by a simple hydrothermal assisted post-annealing method and characterized with various analytical techniques. The catalytic properties (sonocatalytic, photocatalytic and sonophotocatalytic activity) were evaluated using the degradation of triphenylmethane dyes (crystal violet, basic fuchsin, and acid fuchsin). The sonophotocatalytic activity of MgTi2O5 nanoparticles towards crystal violet was found to be ~2.9 times higher than the photocatalytic activity and ~20 times higher than that of the sonocatalytic processes. In addition, the sonophotocatalytic efficiency of MgTi2O5 nanoparticles was found to be remarkable for the degradation of basic fuchsin (cationic dye) and acid fuchsin (anionic dye). The mechanism of these catalytic activities has been discussed in detail.
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Affiliation(s)
- Thangavel Selvamani
- Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India
| | - Sambandam Anandan
- Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.
| | - Abdullah M Asiri
- The Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21413, P.O. Box 80203, Saudi Arabia
| | - Pichai Maruthamuthu
- Department of Energy, University of Madras, Guindy Campus, Chennai 600025, India
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19
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Ghiasi R, Valizadeh A. HYDROGEN ADSORPTION AND STORAGE
ON PALLADIUM-FUNCTIONALIZED GRAPHYNE
AND ITS BORON NITRIDE ANALOGUE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621060032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Akter J, Hanif MA, Islam MA, Sapkota KP, Hahn JR. Selective growth of Ti 3+/TiO 2/CNT and Ti 3+/TiO 2/C nanocomposite for enhanced visible-light utilization to degrade organic pollutants by lowering TiO 2-bandgap. Sci Rep 2021; 11:9490. [PMID: 33947935 PMCID: PMC8096813 DOI: 10.1038/s41598-021-89026-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/14/2021] [Indexed: 11/23/2022] Open
Abstract
A convenient route was developed for the selective preparation of two stable nanocomposites, Ti3+/TiO2/CNT (labeled as TTOC-1 and TTOC-3) and Ti3+/TiO2/carbon layer (labeled as TTOC-2), from the same precursor by varying the amount of single-walled carbon nanotubes used in the synthesis. TiO2 is an effective photocatalyst; however, its wide bandgap limits its usefulness to the UV region. As a solution to this problem, our prepared nanocomposites exhibit a small bandgap and wide visible-light (VL) absorption because of the introduction of carbonaceous species and Ti3+ vacancies. The photocatalytic efficiency of the nanocomposites was examined via the degradation of methylene blue dye under VL. Excellent photocatalytic activity of 83%, 98%, and 93% was observed for TTOC-1, TTOC-2, and TTOC-3 nanocomposites within 25 min. In addition, the photocatalytic degradation efficiency of TTOC-2 toward methyl orange, phenol, rhodamine B, and congo red was 28%, 69%, 71%, and 91%, respectively, under similar experimental conditions after 25 min. Higher reusability and structural integrity of the as-synthesized photocatalyst were confirmed within five consecutive runs by photocatalytic test and X-ray diffraction analysis, respectively. The resulting nanocomposites provide new insights into the development of VL-active and stable photocatalysts with high efficiencies.
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Affiliation(s)
- Jeasmin Akter
- Department of Chemistry, Jeonbuk National University, Jeonju, 54896, Korea
| | - Md Abu Hanif
- Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju, 54896, Korea
| | - Md Akherul Islam
- Department of Bioactive Material Sciences, Jeonbuk National University, Jeonju, 54896, Korea
| | | | - Jae Ryang Hahn
- Department of Chemistry, Jeonbuk National University, Jeonju, 54896, Korea. .,Textile Engineering, Chemistry and Science, North Carolina State University, 2401 Research Dr., Raleigh, NC, 27695, USA.
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21
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Zhang W, Gao YJ, Fang QJ, Pan JK, Zhu XC, Deng SW, Yao ZH, Zhuang GL, Wang JG. High-performance single-atom Ni catalyst loaded graphyne for H 2O 2 green synthesis in aqueous media. J Colloid Interface Sci 2021; 599:58-67. [PMID: 33933797 DOI: 10.1016/j.jcis.2021.04.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/14/2021] [Accepted: 04/18/2021] [Indexed: 10/21/2022]
Abstract
The electrochemical synthesis of hydrogen peroxide (H2O2) provides a greener and more efficient method compared with classic catalysts containing toxic metals. Herein, we used first-principles density functional theory (DFT) calculations to investigate 174 different single-atom catalysts with graphyne substrates, and conducted a three-step screening strategy to identify the optimal noble metal-free single atom catalyst. It is found that a single Ni atom loaded on γ-graphyne with carbon vacancies (Ni@V-γ-GY) displayed remarkable thermodynamic stability, excellent selectivity, and high activity with an ultralow overpotential of 0.03 V. Furthermore, based on ab-initio molecular dynamic and DFT calculations under the H2O solvent, it was revealed that the catalytic performance for H2O2 synthesis in aqueous phase was much better than that in gas phase condition, shedding light on the hydrogen bond network being beneficial to accelerate the transfer of protons for H2O2 synthesis.
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Affiliation(s)
- Wei Zhang
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yi-Jing Gao
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Qiao-Jun Fang
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Jin-Kong Pan
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Xin-Cheng Zhu
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Sheng-Wei Deng
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Zi-Hao Yao
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Gui-Lin Zhuang
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China.
| | - Jian-Guo Wang
- Institute of Industrial Catalysis, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, PR China
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22
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Xiong H, Zou H, Liu H, Wang M, Duan L. Surface Functionalization of a γ-Graphyne-like Carbon Material via Click Chemistry. Chem Asian J 2021; 16:922-925. [PMID: 33729689 DOI: 10.1002/asia.202100125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/11/2021] [Indexed: 11/05/2022]
Abstract
Surface functionalization of carbon materials is of interest in many research fields, such as electrocatalysis, interfacial engineering, and supercapacitors. As an emerging carbon material, γ-graphyne has attracted broad attention. Herein, we report that the surface functionalization of a γ-graphyne-like carbon material (γ-G1) is achieved by immobilizing functional groups via the click chemistry. Texture analysis of aberration-corrected microscopy, X-ray photoelectron spectroscopy, and electrochemistry confirm the successful surface modification of γ-G1 through a strong covalent linkage 1,2,3-triazole. The direct linkage of functional groups on γ-G1 via the click chemistry represents a general method for preparing other functional materials by using γ-graphyne-like materials as a skeleton.
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Affiliation(s)
- Huatian Xiong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Haiyuan Zou
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Hong Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Mei Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Lele Duan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116024, P. R. China.,Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
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23
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Darvishnejad MH, Reisi-Vanani A. DFT-D3 calculations of the charge-modulated CO2 capture of N/Sc-embedded graphyne: Compilation of some factors. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101469] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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24
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Hosseini S, Amoozadeh A. Plasma Treatment as a Promising Environmentally Benign Approach for Synthesis of Valuable Multi-gas Doped Nano-TiO 2 -P25: An Efficient Way to Boost the Photocatalytic Performance under Visible Light Illumination. Photochem Photobiol 2021; 97:672-687. [PMID: 33372315 DOI: 10.1111/php.13374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/22/2020] [Indexed: 11/29/2022]
Abstract
An ingenious prospect has been established to synthesize a wide range of non-metal-doped TiO2 -P25 by plasma technique. Different atmospheres (Air, O2 , N2 , Ar and CO2 ) have been embedded on the surface of TiO2 -P25 by plasma treating as an effective alternative to wet chemical pretreatment processes. This approach is clean beyond recognition by employing pure gases as well as no need to poison precursors or organic solvents without producing waste stream, which surprisingly can meet green chemistry purposes. More specifically, plasma has been a contributing factor in the narrowing band gap energies of doped photocatalysts in comparison with pure TiO2 -P25. Synthesized photocatalysts gained enormous benefit from the plasma treatment in the selective oxidation of benzyl alcohols to associating aldehydes under blue LED illumination with excellent yields, which dramatically decreased the time reaction to many folds. Additionally, benzaldehyde formation under influence of various wavelengths of visible light, including blue photons (λmax = 460 nm), green photons (λmax = 510 nm) and red photons (λmax = 630 nm) was compared to assess the effect of plasma treating on photoactivity of nano-TiO2 -P25. Furthermore, as-prepared photocatalysts were investigated by diverse characterization techniques.
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Affiliation(s)
- Saber Hosseini
- Department of Organic Chemistry, Faculty of Chemistry, Semnan University, Semnan, Iran
| | - Ali Amoozadeh
- Department of Organic Chemistry, Faculty of Chemistry, Semnan University, Semnan, Iran
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25
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Hou J, Xu T, Ning Y, Huang B, Yang Y, Wang Q. Solvothermal preparation of Ti 3+ self-doped TiO 2-x nanotube arrays for enhanced photoelectrochemical performance. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 244:118896. [PMID: 32919156 DOI: 10.1016/j.saa.2020.118896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Ti3+ self-doped TiO2-x nanotube arrays (TiO2-x NTs) were prepared by solvothermal treatment in KBH4 ethanol solution followed by calcination, and were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV-vis diffusion reflection spectroscopy (DRS). The photoelectrochemical properties of TiO2-x NTs prepared in different KBH4 concentrations were investigated. The TiO2-x NTs exhibited high visible light response, visible light photocurrent and photoelectrocatalytic activities. The active species and photocatalytic mechanism for the dye degradation were proposed, and the improved photoelectrochemical performance was attributed to the synergistic effect of the narrowed energy gap and enhanced electron transportation. The ability to improve the photoelectrochemical properties of TiO2-x electrode materials should open up new opportunities for high-performance solar cells and photocatalysts.
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Affiliation(s)
- Junwei Hou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China.
| | - Tengze Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Yanbin Ning
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Bingxuan Huang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Ye Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Qingyao Wang
- School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
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26
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Sterzenbach C, Keller TJ, Kraus D, Lupton JM, Jester SS, Höger S. Expanded all-phenylene molecular spoked wheels: cutouts of graphenylene-3. Org Chem Front 2021. [DOI: 10.1039/d1qo00876e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
All-phenylene molecular spoked wheels, cutouts of graphenylene-3, have been synthesized by intramolecular Yamamoto coupling of the respective dodecabromides.
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Affiliation(s)
- Christopher Sterzenbach
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Tristan J. Keller
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Daniel Kraus
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - John M. Lupton
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - Stefan-S. Jester
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
| | - Sigurd Höger
- Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany
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27
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Gholami P, Khataee A, Vahid B, Karimi A, Golizadeh M, Ritala M. Sonophotocatalytic degradation of sulfadiazine by integration of microfibrillated carboxymethyl cellulose with Zn-Cu-Mg mixed metal hydroxide/g-C3N4 composite. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116866] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Ding W, Sun M, Gao B, Liu W, Ding Z, Anandan S. A ball-milling synthesis of N-graphyne with controllable nitrogen doping sites for efficient electrocatalytic oxygen evolution and supercapacitors. Dalton Trans 2020; 49:10958-10969. [PMID: 32725021 DOI: 10.1039/d0dt01855d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Low-cost and efficient multifunctional electrodes play an important part in promoting the practical application of energy conversion and storage. Herein, we report the facile synthesis of N-graphyne, with a novel structure, by one-step ball milling of CaC2 and pyrazine. The accurate doping of nitrogen atoms at the controllable sites of the molecular skeleton of γ-graphyne was achieved using the nitrogenous precursor (pyrazine) as a reactant. Various techniques were adopted for the investigation of the composition, structure, and morphology of the obtained samples. The electrochemical measurements demonstrated that N-graphyne can serve as an excellent electrode material for both electrocatalysis and supercapacitors. As an electrocatalyst, N-graphyne exhibited an overpotential of 280 mV at 100 mA cm-2 and a Tafel slope of 122 mV dec-1 for the oxygen evolution reaction with highly stable morphology and electrocatalytic performance. As a supercapacitor electrode, N-graphyne showed a maximum capacitance of 235 F g-1 at 1 A g-1, and capacitance retention of 87% after 3000 cycles. The superior electrochemical performance of N-graphyne is due to the nitrogen heteroatomic defects, large electrochemical active surface areas and fast electron migration. Our studies provide a facile synthesis of novel N-graphyne with controllable doping sites and promote its potential applications in electrocatalysis and supercapacitors.
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Affiliation(s)
- Wen Ding
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Mingxuan Sun
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China. and State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Bowen Gao
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Wenzhu Liu
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Zhipeng Ding
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Sambandam Anandan
- Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India
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