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Guo S, Gao M, Zhang W, Liu F, Guo X, Zhou K. Recent Advances in Laser-Induced Synthesis of MOF Derivatives. Adv Mater 2023; 35:e2303065. [PMID: 37319033 DOI: 10.1002/adma.202303065] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Metal-organic frameworks (MOFs) are crystalline materials with permanent pores constructed by the self-assembly of organic ligands and metal clusters through coordination bonds. Due to their diversity and tunability, MOFs are used as precursors to be converted into other types of functional materials by pyrolytic recrystallization. Laser-induced synthesis is proven to be a powerful pyrolytic processing technique with fast and accurate laser irradiation, low loss, high efficiency, selectivity, and programmability, which endow MOF derivatives with new features. Laser-induced MOF derivatives exhibit high versatility in multidisciplinary research fields. In this review, first, the basic principles of laser smelting and the types of materials for laser preparation of MOF derivatives are briefly introduced. Subsequently, it is focused on the peculiarity of the engineering of structural defects and their applications in catalysis, environmental protection, and energy fields. Finally, the challenges and opportunities at the current stage are highlighted with the aim of elucidating the future direction of the rapidly growing field of laser-induced synthesis of MOF derivatives.
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Affiliation(s)
- Shuailong Guo
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ming Gao
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Wang Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Feng Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Xueyi Guo
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Kun Zhou
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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Hong M, Li M, Wang Y, Shi XL, Chen ZG. Advances in Versatile GeTe Thermoelectrics from Materials to Devices. Adv Mater 2023; 35:e2208272. [PMID: 36366918 DOI: 10.1002/adma.202208272] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Driven by the intensive efforts in the development of high-performance GeTe thermoelectrics for mass-market application in power generation and refrigeration, GeTe-based materials display a high figure of merit of >2.0 and an energy conversion efficiency beyond 10%. However, a comprehensive review on GeTe, from fundamentals to devices, is still needed. In this regard, the latest progress on the state-of-the-art GeTe is timely reviewed. The phase transition, intrinsic high carrier concentration, and multiple band edges of GeTe are fundamentally analyzed from the perspectives of the native atomic orbital, chemical bonding, and lattice defects. Then, the fabrication methods are summarized with a focus on large-scale production. Afterward, the strategies for enhancing electronic transports of GeTe by energy filtering effect, resonance doping, band convergence, and Rashba band splitting, and the methods for strengthening phonon scatterings via nanoprecipitates, planar vacancies, and superlattices, are comprehensively reviewed. Besides, the device assembly and performance are highlighted. In the end, future research directions are concluded and proposed, which enlighten the development of broader thermoelectric materials.
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Affiliation(s)
- Min Hong
- Center for Future Materials, University of Southern Queensland, Springfield Central, Queensland, 4300, Australia
| | - Meng Li
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Yuan Wang
- School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Xiao-Lei Shi
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Zhi-Gang Chen
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
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3
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Yang Q, Wang Y, Tang X, Zhang Q, Dai S, Peng H, Lin Y, Tian Z, Lu Z, Chen L. Ligand Defect Density Regulation in Metal-Organic Frameworks by Functional Group Engineering on Linkers. Nano Lett 2022; 22:838-845. [PMID: 35005972 DOI: 10.1021/acs.nanolett.1c04574] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Defects in solid materials vitally determine their physicochemical properties; however, facile regulation of the defect density is still a challenge. Herein, we demonstrate that the ligand defect density of metal-organic frameworks (MOFs) with a UiO-66 structural prototype is precisely regulated by tuning the linker groups (X = OMe, Me, H, F). Detailed analyses reveal that the ligand defect concentration is positively correlated with the electronegativity of linker groups, and Ce-UiO-66-F, constructed by F-containing ligands and Ce-oxo nodes, possesses the superior ligand defect density (>25%) and identifiable irregular periodicity. The increase in ligand defect density results in the reduction of the valence state and the coordination number of Ce sites in Ce-UiO-66-X, and this merit further validates the relationship between the defective structure and catalytic performance of CO2 cycloaddition reaction. This facile, efficient, and reliable strategy may also be applicable to precisely constructing the defect density of porous materials in the future.
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Affiliation(s)
- Qihao Yang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yinming Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Centre, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Qiuju Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Centre, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, China
| | - Huaitao Peng
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
| | - Yichao Lin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Ziqi Tian
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhiyi Lu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Liang Chen
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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4
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Li S, Lin J, Ding Y, Xu P, Guo X, Xiong W, Wu DY, Dong Q, Chen J, Zhang L. Defects Engineering of Lightweight Metal-Organic Frameworks-Based Electrocatalytic Membrane for High-Loading Lithium-Sulfur Batteries. ACS Nano 2021; 15:13803-13813. [PMID: 34379405 DOI: 10.1021/acsnano.1c05585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The sluggish kinetics and shuttle effect of lithium polysulfide intermediates are the major issues that retard the practical applications of lithium-sulfur (Li-S) batteries. Herein, we introduce a defect engineering strategy to construct a defected-UiO-66-NH2-4/graphene electrocatalytic membrane (D-UiO-66-NH2-4/G EM) which could accelerate the conversion of lithium polysulfides in high sulfur loadings and low electrolyte/sulfur (E/S) ratio Li-S batteries. Metal-organic frameworks (UiO-66-NH2) can be directionally chemical engraved to form concave octahedra with abundant defects. According to electrocatalytic kinetics and DFT calculations studies, the D-UiO-66-NH2-4 architecture effectively provides ample sites to capture polysulfides via strong chemical affinity and effectively delivers electrocatalytic activity of polysulfide conversion. As a result, a Li-S battery with such an electrocatalytic membrane delivers a high capacity of 12.3 mAh cm-2 (1013 mAh g-1) at a sulfur loading up to 12.2 mg·S cm-2 under a lean electrolyte condition (E/S = 5 μL mg-1-sulfur) at 2.1 mA cm-2 (0.1 C). Moreover, a prototype soft package battery also exhibits excellent cycling stability with a maintained capacity of 996 mAh g-1 upon 100 cycles.
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Affiliation(s)
- Sha Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Jiande Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Yu Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Pan Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Xiangyang Guo
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Weiming Xiong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Quanfeng Dong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Jiajia Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
| | - Li Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Tan Kah Kee Innovation Laboratory, Xiamen University, Xiamen 361005, Fujian, China
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5
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Das AK, Mukherjee S, R SS, Nair AS, Bhandary S, Chopra D, Sanyal D, Pathak B, Mandal S. Defects Engineering on Ceria and C-C Coupling Reactions Using [Au 11(PPh 3) 7I 3] Nanocluster: A Combined Experimental and Theoretical Study. ACS Nano 2020; 14:16681-16688. [PMID: 33253533 DOI: 10.1021/acsnano.0c03010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ligand protected atom-precise gold-based catalysts have been utilized in many essential chemical processes, but their mechanism and the fate of the catalyst during reaction are still unrevealed. Atom-precise cluster without ligands are thus highly desirable to maximize atom efficiency, but making these in solution phase is challenging. In this scenario, catalysts with dispersion on oxide support are highly desirable to understand the role of metal core during catalytic reaction. Here, we report the synthesis of Au11(PPh3)7I3 cluster that consists of an incomplete icosahedron core. During its impregnation process on CeO2 support, all of the ligands were removed from the kernel and the Au11 kernel fits into the defects of ceria (embedded onto the oxygen vacancy of ceria (111) plane). This Au11@CeO2 has high atom efficiency and catalytic activity for Ullmann-type C-C homocoupling reactions for electron rich substrates. Density functional theory calculations showed that hexagonal arrangements of Au11 kernel on (111) plane of CeO2 is the most stable one. Theoretical calculations also proved that the atop gold atom has more favorable interaction with phenyl iodide than the second layer gold atoms of the Au11@CeO2. This demonstrated that the present catalyst mimics the single-atom catalyst-like behavior in facilitating the coupling reactions.
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Affiliation(s)
- Anish Kumar Das
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
| | - Sayani Mukherjee
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
| | - Sreehari S R
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
| | - Akhil S Nair
- School of Basic Science, Indian Institute of Technology, Indore, Madhya Pradesh 453552, India
| | - Subhrajyoti Bhandary
- School of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462066, India
| | - Deepak Chopra
- School of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462066, India
| | - Dirtha Sanyal
- Variable Energy Cyclotron Centre, HBNI, 1/AF Bidhannagar, Kolkata 700064, India
| | - Biswarup Pathak
- School of Basic Science, Indian Institute of Technology, Indore, Madhya Pradesh 453552, India
| | - Sukhendu Mandal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram, Kerala 695551, India
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6
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Qiao Z, Lin L, Yan X, Guo W, Chen Q, Xie Q, Han X, Lin J, Wang L, Peng DL. Function and Application of Defect Chemistry in High-Capacity Electrode Materials for Li-Based Batteries. Chem Asian J 2020; 15:3620-3636. [PMID: 32985136 DOI: 10.1002/asia.202000904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/22/2020] [Indexed: 01/16/2023]
Abstract
Current commercial Li-based batteries are approaching their energy density limitation, yet still cannot satisfy the energy density demand of the high-end devices. Hence, it is critical to developing advanced electrode materials with high specific capacity. However, these electrode materials are facing challenges of severe structural degradation and fast capacity fading. Among various strategies, constructing defects in electrode materials holds great promise in addressing these issues. Herein, we summarize a series of significant defect engineering in the high-capacity electrode materials for Li-based batteries. The detailed retrospective on defects specification, function mechanism, and corresponding application achievements on these electrodes are discussed from the view of point, line, planar, volume defects. Defect engineering can not only stabilize the structure and enhance electric/ionic conductivity, but also act as active sites to improve the ionic storage and bonding ability of electrode materials to Li metal. We hope this review can spark more perspectives on evaluating high-energy-density Li-based batteries.
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Affiliation(s)
- Zhensong Qiao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Liang Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Xiaolin Yan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Weibin Guo
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Qiulin Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Qingshui Xie
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Xiao Han
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Jie Lin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Laisen Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
| | - Dong-Liang Peng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Fujian Key Laboratory of Materials Genome, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, P.R. China
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Shawkat MS, Gil J, Han SS, Ko TJ, Wang M, Dev D, Kwon J, Lee GH, Oh KH, Chung HS, Roy T, Jung Y, Jung Y. Thickness-Independent Semiconducting-to-Metallic Conversion in Wafer-Scale Two-Dimensional PtSe 2 Layers by Plasma-Driven Chalcogen Defect Engineering. ACS Appl Mater Interfaces 2020; 12:14341-14351. [PMID: 32124612 DOI: 10.1021/acsami.0c00116] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Platinum diselenide (PtSe2) is an emerging class of two-dimensional (2D) transition-metal dichalcogenide (TMD) crystals recently gaining substantial interest, owing to its extraordinary properties absent in conventional 2D TMD layers. Most interestingly, it exhibits a thickness-dependent semiconducting-to-metallic transition, i.e., thick 2D PtSe2 layers, which are intrinsically metallic, become semiconducting with their thickness reduced below a certain point. Realizing both semiconducting and metallic phases within identical 2D PtSe2 layers in a spatially well-controlled manner offers unprecedented opportunities toward atomically thin tailored electronic junctions, unattainable with conventional materials. In this study, beyond this thickness-dependent intrinsic semiconducting-to-metallic transition of 2D PtSe2 layers, we demonstrate that controlled plasma irradiation can "externally" achieve such tunable carrier transports. We grew wafer-scale very thin (a few nm) 2D PtSe2 layers by a chemical vapor deposition (CVD) method and confirmed their intrinsic semiconducting properties. We then irradiated the material with argon (Ar) plasma, which was intended to make it more semiconducting by thickness reduction. Surprisingly, we discovered a reversed transition of semiconducting to metallic, which is opposite to the prediction concerning their intrinsic thickness-dependent carrier transports. Through extensive structural and chemical characterization, we identified that the plasma irradiation introduces a large concentration of near-atomic defects and selenium (Se) vacancies in initially stoichiometric 2D PtSe2 layers. Furthermore, we performed density functional theory (DFT) calculations and clarified that the band-gap energy of such defective 2D PtSe2 layers gradually decreases with increasing defect concentration and dimensions, accompanying a large number of midgap energy states. This corroborative experimental and theoretical study decisively verifies the fundamental mechanism for this externally controlled semiconducting-to-metallic transition in large-area CVD-grown 2D PtSe2 layers, greatly broadening their versatility for futuristic electronics.
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Affiliation(s)
- Mashiyat Sumaiya Shawkat
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - Jaeyoung Gil
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Sang Sub Han
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, South Korea
| | - Tae-Jun Ko
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
| | - Mengjing Wang
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
| | - Durjoy Dev
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - Junyoung Kwon
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, South Korea
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, South Korea
| | - Kyu Hwan Oh
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, South Korea
| | - Hee-Suk Chung
- Analytical Research Division, Korea Basic Science Institute, Jeonju 54907, South Korea
| | - Tania Roy
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, United States
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - YounJoon Jung
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Yeonwoong Jung
- NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States
- Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida 32816, United States
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
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8
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Zhang J, Chen J, Wan Y, Liu H, Chen W, Wang G, Wang R. Defect Engineering in Atomic-Layered Graphitic Carbon Nitride for Greatly Extended Visible-Light Photocatalytic Hydrogen Evolution. ACS Appl Mater Interfaces 2020; 12:13805-13812. [PMID: 32096979 DOI: 10.1021/acsami.9b21115] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Defect modulation usually has a great influence on the electronic structures and activities of photocatalysts. Here, atomically layered g-C3N4 modified via defect engineering with nitrogen vacancy and cyanogen groups is obtained through two facile steps of thermal treatment (denoted as A-V-g-C3N4). Detailed analysis reveals that the atomic-layered graphitic carbon nitride (2.3 nm) with defect engineering modifying provides more active sites and decreases the electron/hole transferring distances. More importantly, the defects that contain nitrogen vacancies and cyanogen groups extend the responsive wavelength to 650 nm, which effectively suppresses the quantum size effect of atomic-layered g-C3N4. Therefore, the as-obtained A-V-g-C3N4 exhibited a photocatalytic H2 evolution rate and apparent quantum yield of 3.7 mmol·g-1·h-1 and 14.98% (λ > 420 nm), respectively. This work is expected to provide guidance for the rational design of atomic-layered g-C3N4.
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Affiliation(s)
- Jin Zhang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jinwei Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yingfei Wan
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hongwei Liu
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Wang Chen
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Gang Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ruilin Wang
- College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China
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9
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Wang C, Yang J, Li T, Shen Z, Guo T, Zhang H, Lu Z. In Situ Tuning of Defects and Phase Transition in Titanium Dioxide by Lithiothermic Reduction. ACS Appl Mater Interfaces 2020; 12:5750-5758. [PMID: 31913596 DOI: 10.1021/acsami.9b18359] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Defects engineering of oxides plays a vital role in tuning their physicochemical and electronic properties and thereby determining their potential applications. However, the safe and controllable production of effective defects in the oxides is still challenging. Here, we report a facile one-pot solid lithiothermic reduction approach to generate graded oxygen defects in TiO2 nanoparticles. Various levels of lithium reduction are systematically studied, and meanwhile, a distinct phase transition from anatase TiO2 to cubic LixTiO2 is observed with the increasing lithium ratio. The structure and evolution of surface defects and bulk phase transition are investigated in detail. Afterward, we demonstrate their applications in carbon dioxide photoreduction and photothermal imaging. The slightly reduced TiO2 with effective oxygen defects affords a highly broadened solar spectrum absorption and yields significantly enhanced visible photocatalytic activity in CO2 conversion, which is further revealed by theoretical calculations. The highly reduced TiO2 with obvious phase transition shows enhanced solar absorption and achieves high photo-thermal-conversion efficacy, showing huge potential in photo-thermal-related applications. The lithiothermic reduction is a general and effective approach to produce defects and induce phase transition in oxides, which can be used in multiple applications.
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Affiliation(s)
- Chao Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
- School of Chemical and Biomolecular Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Jingjing Yang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
| | - Taozhu Li
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
| | - Zihan Shen
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
| | - Taolian Guo
- College of Chemistry , Central China Normal University , Wuhan 430079 , China
| | - Huigang Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
| | - Zhenda Lu
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences , Nanjing University , Nanjing 210093 , China
- Jiangsu Key Laboratory of Artificial Functional Materials , Nanjing University , Nanjing 210093 , China
- Research Center for Environmental Nanotechnology (ReCENT) , Nanjing University , Nanjing 210023 , China
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Wang L, Marcus K, Huang X, Shen Z, Yang Y, Bi Y. Dual Effects of Nanostructuring and Oxygen Vacancy on Photoelectrochemical Water Oxidation Activity of Superstructured and Defective Hematite Nanorods. Small 2018; 14:e1704464. [PMID: 29484810 DOI: 10.1002/smll.201704464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/17/2018] [Indexed: 06/08/2023]
Abstract
An Ar atmospheric treatment is rationally used to etch and activate hematite nanoflakes (NFs) as photoanodes toward enhanced photoelectrochemical water oxidation. The formation of a highly ordered hematite nanorods (NRs) array containing a high density of oxygen vacancy is successfully prepared through in situ reduction of NFs in Ar atmosphere. Furthermore, a hematite (104) plane and an iron suboxide layer at the absorber/back-contact interface are formed. The material defects produced by a thermal oxidation method can be critical for the morphology transformation from 2D NFs to 1D NRs. The resulting hematite NR photoanodes show high efficiency toward solar water splitting with improved light harvesting capabilities, leading to an enhanced photoresponse due to the artificially formed oxygen vacancies.
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Affiliation(s)
- Lei Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - Kyle Marcus
- NanoScience Technology Center, Department of Materials Science and Engineering, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL, 32816, USA
| | - Xiaojuan Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - Zhiqiang Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - Yang Yang
- NanoScience Technology Center, Department of Materials Science and Engineering, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL, 32816, USA
| | - Yingpu Bi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
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Abstract
Defect engineering in metal-organic frameworks (MOFs) is an exciting concept for tailoring material properties, which opens up novel opportunities not only in sorption and catalysis, but also in controlling more challenging physical characteristics such as band gap as well as magnetic and electrical/conductive properties. It is challenging to structurally characterize the inherent or intentionally created defects of various types, and there have so far been few efforts to comprehensively discuss these issues. Based on selected reports spanning the last decades, this Review closes that gap by providing both a concise overview of defects in MOFs, or more broadly coordination network compounds (CNCs), including their classification and characterization, together with the (potential) applications of defective CNCs/MOFs. Moreover, we will highlight important aspects of "defect-engineering" concepts applied for CNCs, also in comparison with relevant solid materials such as zeolites or COFs. Finally, we discuss the future potential of defect-engineered CNCs.
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Affiliation(s)
- Zhenlan Fang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816 (V.R. China).
| | - Bart Bueken
- Centre for Surface Chemistry and Catalysis, KULeuven, Kasteelpark Arenberg 23, 3001 Leuven (Belgien).
| | - Dirk E De Vos
- Centre for Surface Chemistry and Catalysis, KULeuven, Kasteelpark Arenberg 23, 3001 Leuven (Belgien).
| | - Roland A Fischer
- Inorganic Chemistry II-Organometallics & Material Chemistry, Department of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, 44801 Bochum (Germany).
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