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Zhou Z, Shu T, Su L, Zhang X. Size-matching compositing nanoprobe of AIE-type gold nanocluster supramolecular nanogels wrapped by hypergravity-tailored MnO 2 nanosheets for cellular glutathione detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123690. [PMID: 38043289 DOI: 10.1016/j.saa.2023.123690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 11/08/2023] [Accepted: 11/26/2023] [Indexed: 12/05/2023]
Abstract
Compositing has been the main approach for material creation via wisely combining material components with different properties. MnO2 nanosheets (MNSs) with thin 2 D morphology are usually applied to composite molecules or nanomaterials for biosensing and bioimaging applications. However, such composition is actually structurally unmatched, albeit performance matching. Here, a series of benefits merely on the basis of structural match have been unearthed via tailoring MNSs with four sizes by synthesis under controllable hypergravity field. The classical fluorophore-quencher couple was utilized as the subject model, where the soft supramolecular nanogels based on aggregation-induced emission (AIE)-active gold nanoclusters were wrapped by MNSs of strong absorption. By comparative study of one-on-one wrapping and one-to-many encapsulation with geometrical selection of different MNSs, we found that the one-on-one wrapping model protected weakly-bonded nanogels from combination-induced distortion and strengthened nanogel networks via endowing exoskeleton. Besides, wrapping pattern and size-match significantly enhanced the quenching efficiency of MNSs towards the emissive nanogels. More importantly, the well-wrapped nanocomposites had considerable enhanced biological compatibility with much lower cytotoxicity and higher transfection capacity than the untailored MNSs composite and could serve as cellular glutathione detection.
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Affiliation(s)
- Ziping Zhou
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518060, PR China; Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China; Aerospace Research Institute of Materials & Processing Technology, Science and Technology on Advanced Functional Composites Laboratory, Beijing 100076, PR China
| | - Tong Shu
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
| | - Lei Su
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518060, PR China
| | - Xueji Zhang
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong 518060, PR China.
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2
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Wang B, Yao Y, Hong W, Hong Z, He X, Wang T, Jian C, Ju Q, Cai Q, Sun Z, Liu W. The Controllable Synthesis of High-Quality Two-Dimensional Iron Sulfide with Specific Phases. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207325. [PMID: 36919484 DOI: 10.1002/smll.202207325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/20/2023] [Indexed: 06/08/2023]
Abstract
2D Fe-chalcogenides have drawn significant attention due to their unique structural phases and distinct properties in exploring magnetism and superconductivity. However, it remains a significant challenge to synthesize 2D Fe-chalcogenides with specific phases in a controllable manner since Fe-chalcogenides have multiple phases. Herein, a molecular sieve-assisted strategy is reported for synthesizing ultrathin 2D iron sulfide on substrates via the chemical vapor deposition method. Using a molecular sieve and tuning growth temperatures to control the partial pressures of precursor concentrations, hexagonal FeS, tetragonal FeS, and non-stoichiometric Fe7 S8 nanoflakes can be precisely synthesized. The 2D h-FeS, t-FeS, and Fe7 S8 have high conductivities of 5.4 × 105 S m-1 , 5.8 × 105 S m-1 , and 1.9 × 106 S m-1 . 2D tetragonal FeS shows a superconducting transition at 4 K. The spin reorientation at ≈30 K on the non-stoichiometric Fe7 S8 nanoflakes with ferrimagnetism up to room temperature has also been observed. The controllable synthesis of various phases of 2D iron sulfide may provide a route for synthesizing other 2D compounds with various phases.
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Affiliation(s)
- Bicheng Wang
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Yu Yao
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Wenting Hong
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Zhaoan Hong
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Xu He
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Taiku Wang
- College of Chemistry, Fuzhou University, Fuzhou, 350108, P. R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Chuanyong Jian
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Qiankun Ju
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Qian Cai
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
| | - Zhihua Sun
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Wei Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
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3
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Patil SA, Jagdale PB, Singh A, Singh RV, Khan Z, Samal AK, Saxena M. 2D Zinc Oxide - Synthesis, Methodologies, Reaction Mechanism, and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206063. [PMID: 36624578 DOI: 10.1002/smll.202206063] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Zinc oxide (ZnO) is a thermally stable n-type semiconducting material. ZnO 2D nanosheets have mainly gained substantial attention due to their unique properties, such as direct bandgap and strong excitonic binding energy at room temperature. These are widely utilized in piezotronics, energy storage, photodetectors, light-emitting diodes, solar cells, gas sensors, and photocatalysis. Notably, the chemical properties and performances of ZnO nanosheets largely depend on the nano-structuring that can be regulated and controlled through modulating synthetic strategies. Two synthetic approaches, top-down and bottom-up, are mainly employed for preparing ZnO 2D nanomaterials. However, owing to better results in producing defect-free nanostructures, homogenous chemical composition, etc., the bottom-up approach is extensively used compared to the top-down method for preparing ZnO 2D nanosheets. This review presents a comprehensive study on designing and developing 2D ZnO nanomaterials, followed by accenting its potential applications. To begin with, various synthetic strategies and attributes of ZnO 2D nanosheets are discussed, followed by focusing on methodologies and reaction mechanisms. Then, their deliberation toward batteries, supercapacitors, electronics/optoelectronics, photocatalysis, sensing, and piezoelectronic platforms are further discussed. Finally, the challenges and future opportunities are featured based on its current development.
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Affiliation(s)
- Sayali Ashok Patil
- Centre for Nano and Material Science, Jain (Deemed-to-be University), Ramanagra, Bengaluru, Karnataka, 562112, India
| | - Pallavi Bhaktapralhad Jagdale
- Centre for Nano and Material Science, Jain (Deemed-to-be University), Ramanagra, Bengaluru, Karnataka, 562112, India
| | - Ashish Singh
- R&D, Technology and Innovation, Merck- Living Innovation, Sigma Aldrich Chemicals Pvt. Ltd., #12, Bommasandra- Jigni Link Road, Bengaluru, Karnataka, 560100, India
| | - Ravindra Vikram Singh
- R&D, Technology and Innovation, Merck- Living Innovation, Sigma Aldrich Chemicals Pvt. Ltd., #12, Bommasandra- Jigni Link Road, Bengaluru, Karnataka, 560100, India
| | - Ziyauddin Khan
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, SE-60174, Sweden
| | - Akshaya Kumar Samal
- Centre for Nano and Material Science, Jain (Deemed-to-be University), Ramanagra, Bengaluru, Karnataka, 562112, India
| | - Manav Saxena
- Centre for Nano and Material Science, Jain (Deemed-to-be University), Ramanagra, Bengaluru, Karnataka, 562112, India
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Gavhane D, van Huis MA. Thermal Stability and Sublimation of Two-Dimensional Co 9Se 8 Nanosheets for Ultrathin and Flexible Nanoelectronic Devices. ACS APPLIED NANO MATERIALS 2023; 6:2421-2428. [PMID: 36875179 PMCID: PMC9972340 DOI: 10.1021/acsanm.2c04640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
An understanding of the structural and compositional stability of nanomaterials is significant from both fundamental and technological points of view. Here, we investigate the thermal stability of half-unit-cell thick two-dimensional (2D) Co9Se8 nanosheets that are exceptionally interesting because of their half-metallic ferromagnetic properties. By employing in situ heating in the transmission electron microscope (TEM), we find that the nanosheets show good structural and chemical stability without changes to the cubic crystal structure until sublimation of the nanosheets starts at temperatures between 460 and 520 °C. The real-time observations of the sublimation process show preferential removal at {110} type crystal facets. From an analysis of sublimation rates at various temperatures, we find that the sublimation occurs through noncontinuous and punctuated mass loss at lower temperatures while the sublimation is continuous and uniform at higher temperatures. Our findings provide an understanding of the nanoscale structural and compositional stability of 2D Co9Se8 nanosheets, which is of importance for their reliable application and sustained performance as ultrathin and flexible nanoelectronic devices.
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5
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Pankhurst JR, Castilla-Amorós L, Stoian DC, Vavra J, Mantella V, Albertini PP, Buonsanti R. Copper Phosphonate Lamella Intermediates Control the Shape of Colloidal Copper Nanocrystals. J Am Chem Soc 2022; 144:12261-12271. [PMID: 35770916 PMCID: PMC9284559 DOI: 10.1021/jacs.2c03489] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Understanding the
structure and behavior of intermediates in chemical
reactions is the key to developing greater control over the reaction
outcome. This principle is particularly important in the synthesis
of metal nanocrystals (NCs), where the reduction, nucleation, and
growth of the reaction intermediates will determine the final size
and shape of the product. The shape of metal NCs plays a major role
in determining their catalytic, photochemical, and electronic properties
and, thus, the potential applications of the material. In this work,
we demonstrate that layered coordination polymers, called lamellae,
are reaction intermediates in Cu NC synthesis. Importantly, we discover
that the lamella structure can be fine-tuned using organic ligands
of different lengths and that these structural changes control the
shape of the final NC. Specifically, we show that short-chain phosphonate
ligands generate lamellae that are stable enough at the reaction temperature
to facilitate the growth of Cu nuclei into anisotropic Cu NCs, being
primarily triangular plates. In contrast, lamellae formed from long-chain
ligands lose their structure and form spherical Cu NCs. The synthetic
approach presented here provides a versatile tool for the future development
of metal NCs, including other anisotropic structures.
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Affiliation(s)
- James R Pankhurst
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Laia Castilla-Amorós
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Dragos C Stoian
- The Swiss-Norwegian Beamlines, European Synchrotron Radiation Facility (ESRF), Grenoble 38000, France
| | - Jan Vavra
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Valeria Mantella
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Petru P Albertini
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
| | - Raffaella Buonsanti
- Laboratory of Nanochemistry for Energy (LNCE), Institute of Chemical Sciences and Engineering (ISIC), École Polytechnique Fédérale de Lausanne (EPFL), Rue de l'Industrie 17, Sion 1950, Switzerland
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6
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Singh A, Price CC, Shenoy VB. Magnetic Order, Electrical Doping, and Charge-State Coupling at Amphoteric Defect Sites in Mn-Doped 2D Semiconductors. ACS NANO 2022; 16:9452-9460. [PMID: 35617052 DOI: 10.1021/acsnano.2c02387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Two-dimensional (2D) dilute magnetic semiconductors (DMSs) are attractive material platforms for applications in multifunctional nanospintronics due to the prospect of embedding controllable magnetic order within nanoscale semiconductors. Identifying candidate host material and dopant systems requires consideration of doping formation energies, magnetic ordering, and the tendency for dopants to form clustered domains. In this work, we consider the defect thermodynamics and the dilute magnetic properties across charge states of 2D-MoS2 and 2D-WS2 with Mn magnetic dopants as candidate systems for 2D-DMSs. Using hybrid density functional calculations, we study the magnetic and electronic properties of these systems across configurations with thermodynamically favorable defects: 2D-MoS2 doped with Mn atoms at sulfur site (MnS), at two Mo sites (2MnMo), on top of a Mo atom (Mn-top), and at a Mo site (MnMo). While the majority of the Mn-defect complexes provide trap states, MnMo and MnW are amphoteric, although previously predicted to be donor defects. The impact of cluster formation of these amphoteric defects on magnetic ordering is also considered; both MnMo-MnMo (2Mn2Mo) and MnW-MnW (2Mn2W) clusters are found to be stable in ferromagnetic (FM) ordering. Interestingly, we observed the defect charge state dependent magnetic behavior of 2Mn2Mo and 2Mn2W clusters in 2D-TMDs. We investigate that the FM coupling of 2Mn2Mo and 2Mn2W clusters is stable in only a neutral charge state; however, the antiferromagnetic (AFM) coupling is stable in the +1 charge state. 2Mn2Mo clusters provide shallow donor levels in AFM coupling and deep donor levels in FM coupling. 2Mn2W clusters lead to trap states in the FM and AFM coupling. We demonstrate the AFM to FM phase transition at a critical electron density nce = 3.5 × 1013 cm-2 in 2D-MoS2 and 2D-WS2. At a 1.85% concentration of Mn, we calculate the Curie temperature of 580 K in the mean-field approximation.
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Affiliation(s)
- Akash Singh
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Christopher C Price
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Vivek B Shenoy
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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7
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Wang S, Xu J, Li W, Sun S, Gao S, Hou Y. Magnetic Nanostructures: Rational Design and Fabrication Strategies toward Diverse Applications. Chem Rev 2022; 122:5411-5475. [PMID: 35014799 DOI: 10.1021/acs.chemrev.1c00370] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, the continuous development of magnetic nanostructures (MNSs) has tremendously promoted both fundamental scientific research and technological applications. Different from the bulk magnet, the systematic engineering on MNSs has brought a great breakthrough in some emerging fields such as the construction of MNSs, the magnetism exploration of multidimensional MNSs, and their potential translational applications. In this review, we give a detailed description of the synthetic strategies of MNSs based on the fundamental features and application potential of MNSs and discuss the recent progress of MNSs in the fields of nanomedicines, advanced nanobiotechnology, catalysis, and electromagnetic wave adsorption (EMWA), aiming to provide guidance for fabrication strategies of MNSs toward diverse applications.
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Affiliation(s)
- Shuren Wang
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Junjie Xu
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Wei Li
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Shengnan Sun
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
| | - Song Gao
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,Institute of Spin-X Science and Technology, South China University of Technology, Guangzhou 511442, China
| | - Yanglong Hou
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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8
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Xu J, Li W, Zhang B, Zha L, Hao W, Hu S, Yang J, Li S, Gao S, Hou Y. Free-standing 2D non-van der Waals antiferromagnetic hexagonal FeSe semiconductor: halide-assisted chemical synthesis and Fe 2+ related magnetic transitions. Chem Sci 2021; 13:203-209. [PMID: 35059168 PMCID: PMC8694323 DOI: 10.1039/d1sc04122c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/30/2021] [Indexed: 12/31/2022] Open
Abstract
The scarcity of two-dimensional (2D) magnetic nanostructures has hindered their applications in spintronics, which is attributed to that most magnetic materials exhibit non-van der Waals (nvdWs) structures and it is hard to reduce their thickness to 2D nanostructures. Thus it is necessary to develop a promising strategy for free-standing 2D magnetic nvdWs nanostructures. We have achieved free-standing 2D nvdWs hexagonal FeSe with a thickness of 2.9 nm by the reaction between the oleylamine-Se complex and Fe2+ with the assistance of Cl-, where the synergetic effects of Cl- and -NH2 lead to anisotropic growth. Inspiringly, the 2D hexagonal FeSe exhibits intrinsic antiferromagnetic order rooted in Fe2+ and semiconducting nature. In addition, the temperature variation would result in the chemical environment changes of Fe2+, responsible for the temperature-dependent magnetic transitions. This work promotes the potential applications of 2D hexagonal FeSe and the preparation of other 2D nvdWs materials.
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Affiliation(s)
- Junjie Xu
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University Beijing 100871 China
| | - Wei Li
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University Beijing 100871 China
| | - Biao Zhang
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University Beijing 100871 China
| | - Liang Zha
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University Beijing 100871 China
| | - Wei Hao
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Shixin Hu
- Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University Lanzhou 730000 China
| | - Jinbo Yang
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University Beijing 100871 China
| | - ShuZhou Li
- School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Song Gao
- Beijing Key Laboratory for Magnetoelectric Materials and Devices, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
- Institute of Spin-X Science and Technology, South China University of Technology Guangzhou 511442 China
| | - Yanglong Hou
- Beijing Key Laboratory of Magnetoelectric Materials and Devices, School of Materials Science and Engineering, Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University Beijing 100871 China
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9
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Pang Y, Su C, Jia G, Xu L, Shao Z. Emerging two-dimensional nanomaterials for electrochemical nitrogen reduction. Chem Soc Rev 2021; 50:12744-12787. [PMID: 34647937 DOI: 10.1039/d1cs00120e] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ammonia (NH3) is essential to serve as the biological building blocks for maintaining organism function, and as the indispensable nitrogenous fertilizers for increasing the yield of nutritious crops. The current Haber-Bosch process for industrial NH3 production is highly energy- and capital-intensive. In light of this, the electroreduction of nitrogen (N2) into valuable NH3, as an alternative, offers a sustainable pathway for the Haber-Bosch transition, because it utilizes renewable electricity and operates under ambient conditions. Identifying highly efficient electrocatalysts remains the priority in the electrochemical nitrogen reduction reaction (NRR), marking superior selectivity, activity, and stability. Two-dimensional (2D) nanomaterials with sufficient exposed active sites, high specific surface area, good conductivity, rich surface defects, and easily tunable electronic properties hold great promise for the adsorption and activation of nitrogen towards sustainable NRR. Therefore, this Review focuses on the fundamental principles and the key metrics being pursued in NRR. Based on the fundamental understanding, the recent efforts devoted to engineering protocols for constructing 2D electrocatalysts towards NRR are presented. Then, the state-of-the-art 2D electrocatalysts for N2 reduction to NH3 are summarized, aiming at providing a comprehensive overview of the structure-performance relationships of 2D electrocatalysts towards NRR. Finally, we propose the challenges and future outlook in this prospective area.
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Affiliation(s)
- Yingping Pang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China.
| | - Chao Su
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212100, China. .,WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6102, Australia.
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, Perth, WA 6102, Australia
| | - Liqiang Xu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China.
| | - Zongping Shao
- WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, WA 6102, Australia. .,State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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10
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Gui X, Feng E, Cao H, Cava RJ. Ferromagnetic Cr 4PtGa 17: A Half-Heusler-Type Compound with a Breathing Pyrochlore Lattice. J Am Chem Soc 2021; 143:14342-14351. [PMID: 34449205 DOI: 10.1021/jacs.1c06667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe the crystal structure and elementary magnetic properties of a previously unreported ternary intermetallic compound, Cr4PtGa17, which crystallizes in a rhombohedral unit cell in the noncentrosymmetric space group R3m. The crystal structure is closely related to those of XYZ half-Heusler compounds, where X, Y, and Z are reported to be single elements only, occupying three different face-centered-cubic sublattices. The new material, Cr4PtGa17, can be most straightforwardly illustrated by writing the formula as (PtGa2)(Cr4Ga14)Ga (X = PtGa2, Y = Cr4Ga14, Z = Ga); that is, the X and Y sites are occupied by clusters instead of single elements. The magnetic Cr occupies a breathing pyrochlore lattice. Ferromagnetic ordering is found below TC ∼ 61 K, by both neutron diffraction and magnetometer studies, with a small, saturated moment of ∼0.25 μB/Cr observed at 2 K, making Cr4PtGa17 the first ferromagnetically ordered material with a breathing pyrochlore lattice. A magnetoresistance of ∼140% was observed at 2 K. DFT calculations suggest that the material has a nearly half-metallic electronic structure. The new material, Cr4PtGa17, the first realization of both a half-Heusler-type structure and a breathing pyrochlore lattice, might pave a new way to achieve novel types of half-Heusler compounds.
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Affiliation(s)
- Xin Gui
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
| | - Erxi Feng
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Huibo Cao
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Robert J Cava
- Department of Chemistry, Princeton University, Princeton, New Jersey 08540, United States
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11
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Chen Q, Liang Q, He SA, Cui Z, Liu Q, Zhu J, Zou R. Co 0.85Se particles encapsulated in the inner wall of nitrogen-doped carbon matrix nanotubes with rational interfacial bonds for high-performance lithium-ion batteries. Dalton Trans 2021; 50:11458-11465. [PMID: 34346462 DOI: 10.1039/d1dt01899j] [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
Cobalt selenides based on the conversion reaction have been widely applied in lithium-ion batteries (LIBs) due to their high conductivity and high specific capacity. However, effectively suppressing the fast capacity fade caused by the irreversible Se/Co dissolution and serious volume change during the cycling process is still a challenge. Herein, a facile and efficient self-generated sacrificial template method is used to prepare Co0.85Se nanoparticles encapsulated in the inner wall of N-doped carbon matrix nanotubes (Co0.85Se@NCMT). In this strategy, the formation of stable Co-N/C and Se-C as well as enhancing the mechanical strength between active materials and N-doped carbon matrix nanotubes can critically affect the performance through suppressing the dissolution of Se/Co, decreasing energy band, promoting the shuttling of the ions/e- moving and mitigating the volume expansion during the charge-discharge process, which play a key role in improving the structure stability and electrochemical performance. Besides, Co0.85Se nanoparticles encapsulated in the robust carbon matrix inner wall can ensure good electron transfer and prevent the aggregation of nanoparticles, leading to superior electrochemical reversibility. Finally, carbon matrix nanotubes can provide sufficient space to effectively accommodate the volume changes of encapsulated Co0.85Se nanoparticles, thereby improving the cyclic stability. Based on the above advantages, as expected, the electrochemical investigations exhibited that the Co0.85Se@NCMT anode performs a stable reversible capacity of 462.9 mA h g-1 at a large current density of 5 A g-1 and a remarkable capacity retention of 99.5% after 800 cycles, suggesting its promising potential for the anode of LIBs.
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Affiliation(s)
- Qi Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
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12
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Xia B, Gao D, Xue D. Ferromagnetism of two-dimensional transition metal chalcogenides: both theoretical and experimental investigations. NANOSCALE 2021; 13:12772-12787. [PMID: 34477766 DOI: 10.1039/d1nr02967c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In recent years, with the fast development of integrated circuit electronic devices and technologies, it has become urgent to improve the density of data storage and lower the energy losses of devices. Under these circumstances, two-dimensional (2D) materials, which have a smaller size and lower energy loss compared with bulk materials, are becoming ideal candidates for future spintronic devices. Among them, 2D transition metal chalcogenides (TMCs), which have excellent electronic and optical properties, have attracted great attention from researchers. However, most of them are intrinsically non-magnetic, which severely hinders their further applications in spintronics. Therefore, introducing intrinsic room-temperature ferromagnetism into 2D TMC materials has become an important issue in spintronics. In this work, we review the introduction of intrinsic ferromagnetism into typical 2D TMCs using various strategies, such as defect engineering, doping with transition metal elements, and phase transfer. Additionally, we found that their ferromagnetism could be adjusted via changing the experimental conditions, such as the nucleation temperature, ion irradiation dose, doping amount, and phase ratio. Finally, we provide some insight into prospective solutions for introducing ferromagnetism into 2D TMCs, hoping to shed some light on future spintronics development.
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Affiliation(s)
- Baorui Xia
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, 730000, Lanzhou, China.
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13
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Wang H, Chen J, Lin Y, Wang X, Li J, Li Y, Gao L, Zhang L, Chao D, Xiao X, Lee JM. Electronic Modulation of Non-van der Waals 2D Electrocatalysts for Efficient Energy Conversion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008422. [PMID: 34032317 DOI: 10.1002/adma.202008422] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/02/2021] [Indexed: 06/12/2023]
Abstract
The exploration of efficient electrocatalysts for energy conversion is important for green energy development. Owing to their high surface areas and unusual electronic structure, 2D electrocatalysts have attracted increasing interest. Among them, non-van der Waals (non-vdW) 2D materials with numerous chemical bonds in all three dimensions and novel chemical and electronic properties beyond those of vdW 2D materials have been studied increasingly over the past decades. Herein, the progress of non-vdW 2D electrocatalysts is critically reviewed, with a special emphasis on electronic structure modulation. Strategies for heteroatom doping, vacancy engineering, pore creation, alloying, and heterostructure engineering are analyzed for tuning electronic structures and achieving intrinsically enhanced electrocatalytic performances. Lastly, a roadmap for the future development of non-vdW 2D electrocatalysts is provided from material, mechanism, and performance viewpoints.
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Affiliation(s)
- Hao Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
- Research Institute of Superconductor Electronics, Nanjing University, Nanjing, 210023, China
| | - Jianmei Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yanping Lin
- Soochow Institute for Energy and Materials Innovations, College of Energy, Soochow University, Suzhou, 215006, China
| | - Xiaohan Wang
- Research Institute of Superconductor Electronics, Nanjing University, Nanjing, 210023, China
| | - Jianmin Li
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Yao Li
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Lijun Gao
- Soochow Institute for Energy and Materials Innovations, College of Energy, Soochow University, Suzhou, 215006, China
| | - Labao Zhang
- Research Institute of Superconductor Electronics, Nanjing University, Nanjing, 210023, China
| | - Dongliang Chao
- Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, China
| | - Xu Xiao
- State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610054, China
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore
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14
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Pandit B, Agarwal A, Patel P, Sankapal BR. The electrochemical kinetics of cerium selenide nano-pebbles: the design of a device-grade symmetric configured wide-potential flexible solid-state supercapacitor. NANOSCALE ADVANCES 2021; 3:1057-1066. [PMID: 36133291 PMCID: PMC9417937 DOI: 10.1039/d0na00893a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/20/2020] [Indexed: 06/14/2023]
Abstract
Next-generation portable flexible electronic appliances require liquid-free energy storage supercapacitor devices to eliminate leakage and to support mechanical bending that is compatible with roll-to-roll technologies. Hence, a state-of-the-art process is presented to design a solid-state, wide-potential and flexible supercapacitor through the use of nano-pebbles of cerium selenide via a simple successive ionic layer adsorption and reaction (SILAR) method that could allow an industry scalable route. We strongly believe that this is the first approach amongst physical and chemical routes not only for synthesizing cerium selenide in thin-film form but also using it for device-grade supercapacitor applications. The designed solid-state symmetric supercapacitor assembled from cerium selenide electrodes sandwiched by PVA-LiClO4 gel electrolyte attains a wide potential window of 1.8 V with capacitance of 48.8 F g-1 at 2 mV s-1 and reveals excellent power density of 4.89 kW kg-1 at an energy density of 11.63 W h kg-1. The formed device is capable of 87% capacitive retention even at a mechanical bending angle of 175°. Lighting up a strip of 21 parallel connected red LEDs clearly demonstrates the practical use of the designed symmetric solid-state supercapacitor, aiming towards the commercialization of the product in the future.
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Affiliation(s)
- Bidhan Pandit
- Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology South Ambazari Road Nagpur 440010 Maharashtra India +91 712 2223230 +91 712 2801170
- Institut Charles Gerhardt Montpellier (ICGM), Université de Montpellier, CNRS Place Eugène Bataillon Montpellier 34095, Cedex 5 France
| | - Akanksha Agarwal
- Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology South Ambazari Road Nagpur 440010 Maharashtra India +91 712 2223230 +91 712 2801170
| | - Priyanka Patel
- Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology South Ambazari Road Nagpur 440010 Maharashtra India +91 712 2223230 +91 712 2801170
| | - Babasaheb R Sankapal
- Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology South Ambazari Road Nagpur 440010 Maharashtra India +91 712 2223230 +91 712 2801170
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15
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Li H, Wei T, Huang S, Xu G, Liu X, Tian J, Yang L, Cao J, Wei X. Ultrafine Co 0.85Se nanocrystals dispersed in 3D CNT network as a flexible free-standing anode for high-performance lithium-ion battery. NEW J CHEM 2021. [DOI: 10.1039/d1nj01385h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A flexible free-standing film electrode with high pseudocapacitive contribution and strengthened cyclic stability was successfully prepared.
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Affiliation(s)
- Huapeng Li
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
| | - Tongye Wei
- Hunan Institute of Advanced Sensing and Information Technology
- Xiangtan University
- China
| | - Shouji Huang
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
| | - Guobao Xu
- National-Provincial Laboratory of Special Function Thin Film Materials
- School of Materials Science and Engineering
- Xiangtan University
- China
| | - Xiong Liu
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
| | - Jiao Tian
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
| | - Liwen Yang
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
| | - Juexian Cao
- Hunan Institute of Advanced Sensing and Information Technology
- Xiangtan University
- China
| | - Xiaolin Wei
- School of Physics and Optoelectronics
- Xiangtan University
- Hunan 411105
- China
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16
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Hu Y, Liu XY, Shen ZH, Luo ZF, Chen ZG, Fan XL. High Curie temperature and carrier mobility of novel Fe, Co and Ni carbide MXenes. NANOSCALE 2020; 12:11627-11637. [PMID: 32436494 DOI: 10.1039/c9nr10927g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) magnets with room temperature ferromagnetism and semiconductors with moderate band gap and high carrier mobility are highly desired for applications in nanoscale electronics and spintronics. By performing the first-principles calculations, we investigate novel Fe, Co, Ni carbide based pristine (M2C) and functionalized (M2CT2, T: F, O, OH) MXenes. Our calculations show that Fe2C, Co2C, Ni2C, Fe2CF2, Fe2CO2, Fe2C(OH)2, Co2CF2, Co2C(OH)2 and Ni2CF2 are dynamically and mechanically stable. More importantly, Fe2C, Co2C, Fe2CF2 and Fe2C(OH)2 exhibit intrinsic ferromagnetism (magnetic moments 2-5μB per unit cell). Monte Carlo simulations suggest high Curie temperatures of 590 and 920 K for Fe2C and Fe2CF2, respectively, at the HSE06 level owing to the large spin magnetic moments and strong ferromagnetic coupling. Based on the deformation potential theory, we predict high and anisotropic hole mobility (0.2-1.4 × 104 cm2 V-1 s-1) for semiconducting Fe2CO2 and Co2C(OH)2. Additionally, Ni2CF2 demonstrates highly anisotropic electron mobility together with a direct band gap. Our results further show the effectiveness of surface functionalization in modulating the electronic and magnetic properties and broadening the properties of MXenes to achieve long-range intrinsic ferromagnetism well above room temperature and high carrier mobility.
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Affiliation(s)
- Y Hu
- State Key Laboratory of Solidification Processing, Center for Advanced Lubrication and Seal Materials, School of Material Science and Engineering, Northwestern Polytechnical University, 127 YouYi Western Road, Xi'an, Shaanxi 710072, China.
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17
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Liu YL, Yan C, Wang GG, Li F, Kang Q, Zhang HY, Han JC. Selenium-rich nickel cobalt bimetallic selenides with core-shell architecture enable superior hybrid energy storage devices. NANOSCALE 2020; 12:4040-4050. [PMID: 32016240 DOI: 10.1039/c9nr10396a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The continuous exploration of advanced electrode materials is of remarkable significance to revolutionize next-generation high-performance energy storage devices towards a green future. Benefiting from their electrochemically active sites and abundant redox centers, bimetallic selenides with desirable nanostructures recently have emerged as promising electrode alternatives for battery-supercapacitor hybrid (BSH) devices which demonstrate enormous potential in bridging the gap between electrochemical properties with high power densities (supercapacitors) and energy densities (batteries). Herein, employing the hydrothermal approach with solid Ni-Co spheres as precursors followed by the selenization process, selenide-rich bimetallic selenide spheres with a core-shell nanostructure were rationally designed and synthesized for use as the cathode electrode in superior BSH devices. The as-obtained (NiCo)9Se8/(NiCo)0.85Se (Ni-Co-Se) exhibits a high specific capacity of 164.44 mA h g-1 at a current density of 1 A g-1 with 85.72% capacity retention even after 5000 cycles at a current density of as high as 8 A g-1, suggesting its great promise in practical applications for BSH devices. By integrating activated carbon as the anode with the as-obtained bimetallic selenides as the cathode, an alkaline aqueous BSH device is fabricated and delivers a high energy density of 37.54 W h kg-1 at a high power density of 842.7 W kg-1. It is found that the excellent electrochemical performances can be ascribed to facile ion and electron transport pathways, high electrical conductivity and reliable structural robustness of the prepared selenides. Moreover, the synthetic strategy presented in this paper opens up an avenue to guide the synthesis of various anion doped bimetallic compounds towards high-performance energy conversion and storage devices.
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Affiliation(s)
- Yi-Lin Liu
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China.
| | - Cheng Yan
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China. and School of Chemistry, Faculty of Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Gui-Gen Wang
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China.
| | - Fei Li
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China.
| | - Qi Kang
- Department of Polymer Science and Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hua-Yu Zhang
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China.
| | - Jie-Cai Han
- Shenzhen Key Laboratory for Advanced Materials, Harbin Institute of Technology, Shenzhen, Shenzhen 518055, China. and Center for Composite Materials, Harbin Institute of Technology, Harbin 150080, China
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18
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19
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Venkata Thulasi-Varma C, Balakrishnan B, Kim HJ. Exploration of Ni-X (O, S, Se) for high performance supercapacitor with long-term stability via solution phase synthesis. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.09.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Sun J, Tian F, Yu F, Yang Z, Yu B, Chen S, Ren Z, Zhou H. Robust Hydrogen-Evolving Electrocatalyst from Heterogeneous Molybdenum Disulfide-Based Catalyst. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03030] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Jingying Sun
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
- Department of Physics and TcSUH, University of Houston, Houston, Texas 77204, United States
| | - Fei Tian
- Department of Physics and TcSUH, University of Houston, Houston, Texas 77204, United States
| | - Fang Yu
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
- Key Laboratory for Matter Microstructure and Function of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Ze Yang
- Department of Physics and TcSUH, University of Houston, Houston, Texas 77204, United States
| | - Bo Yu
- Ningbo Fengcheng Advanced Energy Materials Research Institute, Ningbo, Zhejiang 315500, China
| | - Shuo Chen
- Department of Physics and TcSUH, University of Houston, Houston, Texas 77204, United States
| | - Zhifeng Ren
- Department of Physics and TcSUH, University of Houston, Houston, Texas 77204, United States
| | - Haiqing Zhou
- Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control Ministry of Education, School of Physics and Electronics, Hunan Normal University, Changsha 410081, China
- Key Laboratory for Matter Microstructure and Function of Hunan Province, Hunan Normal University, Changsha 410081, China
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21
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Ye S, Brown AP, Stammers AC, Thomson NH, Wen J, Roach L, Bushby RJ, Coletta PL, Critchley K, Connell SD, Markham AF, Brydson R, Evans SD. Sub-Nanometer Thick Gold Nanosheets as Highly Efficient Catalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900911. [PMID: 31728277 PMCID: PMC6839621 DOI: 10.1002/advs.201900911] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/12/2019] [Indexed: 06/10/2023]
Abstract
2D metal nanomaterials offer exciting prospects in terms of their properties and functions. However, the ambient aqueous synthesis of atomically-thin, 2D metallic nanomaterials represents a significant challenge. Herein, freestanding and atomically-thin gold nanosheets with a thickness of only 0.47 nm (two atomic layers thick) are synthesized via a one-step aqueous approach at 20 °C, using methyl orange as a confining agent. Owing to the high surface-area-to-volume ratio, abundance of unsaturated atoms exposed on the surface and large interfacial areas arising from their ultrathin 2D nature, the as-prepared Au nanosheets demonstrate excellent catalysis performance in the model reaction of 4-nitrophenol reduction, and remarkable peroxidase-mimicking activity, which enables a highly sensitive colorimetric sensing of H2O2 with a detection limit of 0.11 × 10-6 m. This work represents the first fabrication of freestanding 2D gold with a sub-nanometer thickness, opens up an innovative pathway toward atomically-thin metal nanomaterials that can serve as model systems for inspiring fundamental advances in materials science, and holds potential across a wide region of applications.
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Affiliation(s)
- Sunjie Ye
- School of Physics and AstronomyUniversity of LeedsLeedsLS2 9JTUK
- Leeds Institute of Medical ResearchSt James's University HospitalUniversity of LeedsLeedsLS9 7TFUK
| | - Andy P. Brown
- School of Chemical and Process EngineeringUniversity of LeedsLeedsLS2 9JTUK
| | | | - Neil H. Thomson
- Division of Oral BiologySchool of DentistryUniversity of LeedsLeedsLS9 7TFUK
| | - Jin Wen
- Institute of Organic Chemistry and BiochemistryAS CR166 10 Praha 6Czech Republic
| | - Lucien Roach
- School of Physics and AstronomyUniversity of LeedsLeedsLS2 9JTUK
| | | | - Patricia Louise Coletta
- Leeds Institute of Medical ResearchSt James's University HospitalUniversity of LeedsLeedsLS9 7TFUK
| | - Kevin Critchley
- School of Physics and AstronomyUniversity of LeedsLeedsLS2 9JTUK
| | - Simon D. Connell
- School of Physics and AstronomyUniversity of LeedsLeedsLS2 9JTUK
| | - Alexander F. Markham
- Leeds Institute of Medical ResearchSt James's University HospitalUniversity of LeedsLeedsLS9 7TFUK
| | - Rik Brydson
- School of Chemical and Process EngineeringUniversity of LeedsLeedsLS2 9JTUK
| | - Stephen D. Evans
- School of Physics and AstronomyUniversity of LeedsLeedsLS2 9JTUK
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22
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Zhao Q, Yang C, Liu R. Ultrathin Graphitic Carbon Nitride Nanosheets as Efficient Catalysts for Degradation of Pollutants under Visible Light. ChemistrySelect 2019. [DOI: 10.1002/slct.201902192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Qian Zhao
- School of Chemistry and Chemical EngineeringJiangsu University 301 Xuefu Road Zhenjiang 212013, Jiangsu P. R.China
| | - Cheng Yang
- School of Chemistry and Chemical EngineeringJiangsu University 301 Xuefu Road Zhenjiang 212013, Jiangsu P. R.China
| | - Ruifeng Liu
- School of Chemistry and Chemical EngineeringJiangsu University 301 Xuefu Road Zhenjiang 212013, Jiangsu P. R.China
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Li X, Yang J. Toward Room-Temperature Magnetic Semiconductors in Two-Dimensional Ferrimagnetic Organometallic Lattices. J Phys Chem Lett 2019; 10:2439-2444. [PMID: 31034233 DOI: 10.1021/acs.jpclett.9b00769] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Obtaining room-temperature magnetically ordered two-dimensional (2D) semiconductors is urgently needed for high-speed nanospintronic devices but remains a big challenge. Here, we propose a potential route to solve this issue by constructing ferrimagnetic semiconductors in 2D metal organic frameworks, taking advantage of the high Curie temperature of ferrimagnetic semiconductors and easy tunability of metal organic frameworks. The proposal is confirmed by first-principles design of 2D metal organic frameworks with conjugated electron acceptors diketopyrrolopyrrole (DPP) as organic linkers and transition metal Cr (V) as nodes. The robust ferrimagnetic ordering comes from the strong direct exchange interaction between d-electron magnetic moments on transition metals and charge transfer-induced p-electron magnetic moments on DPPs, which can be modulated facilely by reducing the d-p orbital interaction distance via moderate compressive strain or increasing the d-p orbital charge transfer through introducing electron-withdrawing groups into the DPP moiety.
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Affiliation(s)
- Xingxing Li
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics , University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
| | - Jinlong Yang
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics , University of Science and Technology of China , Hefei , Anhui 230026 , People's Republic of China
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24
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Yu X, Wen X, Zhang W, Yang L, Wu H, Lou X, Xie Z, Liu Y, Chang H. Fast and controlled growth of two-dimensional layered ZrTe3 nanoribbons by chemical vapor deposition. CrystEngComm 2019. [DOI: 10.1039/c9ce00793h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We first demonstrated ZrTe3 nanoribbons can be grown directly by chemical vapor deposition method, which exhibit intriguing magnetic properties.
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Affiliation(s)
- Xu Yu
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Xiaokun Wen
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Wenfeng Zhang
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Li Yang
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Hao Wu
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Xun Lou
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Zijian Xie
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Yuan Liu
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Haixin Chang
- Center for Joining and Electronic Packaging
- State Key Laboratory of Material Processing and Die & Mould Technology
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
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25
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Jiang Y, Cao L, Hu X, Ren Z, Zhang C, Wang C. Simulating Powder X-ray Diffraction Patterns of Two-Dimensional Materials. Inorg Chem 2018; 57:15123-15132. [DOI: 10.1021/acs.inorgchem.8b02315] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yibin Jiang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Lingyun Cao
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Xuefu Hu
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Zikun Ren
- College of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing 210000, P.R.China
| | - Cankun Zhang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
| | - Cheng Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R. China
- College of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing 210000, P.R.China
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26
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Jiang Z, Wang P, Xing J, Jiang X, Zhao J. Screening and Design of Novel 2D Ferromagnetic Materials with High Curie Temperature above Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2018; 10:39032-39039. [PMID: 30350933 DOI: 10.1021/acsami.8b14037] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Two-dimensional (2D) intrinsic ferromagnets with high Curie temperature ( TC) are desirable for spintronic applications. Using systematic first-principles calculations, we investigate the electronic and magnetic properties of 22 monolayer 2D materials with layered bulk phases. From these candidates, we screen out five ferromagnetic monolayer materials belonging to three types of structures: type i (ScCl, YCl, LaCl), type ii (LaBr2), and type iii (CrSBr). Type i is a kind of metallic ferromagnetic material, whereas LaBr2 and CrSBr of type ii and iii are small-bandgap ferromagnetic semiconductors with TC near room temperature. Moreover, the ferromagnetic CrSBr monolayer possesses a large magnetic moment of ∼3 μB per Cr atom, originating from its distorted octahedron coordination. The robust ferromagnetism of the CrSBr monolayer is ascribed to the halogen-mediated (Cr-Br-Cr) and chalcogen-mediated (Cr-S-Cr) superexchange interactions; then, an isoelectronic substitution strategy is proposed to tailor the magnetic coupling strength. Hence, monolayer structures of CrSI, CrSCl, and CrSeBr with notably enhanced Curie temperature up to 500 K as well as favorable formation energy are designed. The moderate interlayer binding energy and high TC make these monolayer ferromagnetic materials feasible for experimental synthesis and attractive as 2D spintronic devices.
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Affiliation(s)
- Zhou Jiang
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian , 116024 , China
| | - Peng Wang
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian , 116024 , China
| | - Jianpei Xing
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian , 116024 , China
| | - Xue Jiang
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian , 116024 , China
| | - Jijun Zhao
- Key Laboratory of Material Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian , 116024 , China
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27
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Zhang X, Huang H, Zhang Y, Liu D, Tong N, Lin J, Chen L, Zhang Z, Wang X. Phase Transition of Two-Dimensional β-Ga 2O 3 Nanosheets from Ultrathin γ-Ga 2O 3 Nanosheets and Their Photocatalytic Hydrogen Evolution Activities. ACS OMEGA 2018; 3:14469-14476. [PMID: 31458132 PMCID: PMC6645061 DOI: 10.1021/acsomega.8b01964] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 10/22/2018] [Indexed: 06/10/2023]
Abstract
Monoclinic β-Ga2O3 nanosheets hold great potential applications in electronic, optical, and photocatalytic fields. In this study, two-dimensional β-Ga2O3 nanosheets were successfully fabricated through a simple crystalline phase transition from the as-prepared ultrathin γ-Ga2O3 nanosheets. The photocatalytic hydrogen evolution reaction under UV light irradiation was achieved on the two kinds of photocatalysts. However, β-Ga2O3 with a higher crystallinity shows a lower photocatalytic activity in comparison with γ-Ga2O3. The average apparent quantum yield is calculated to be 0.29% for β-Ga2O3 nanosheets and 1.82% for γ-Ga2O3. More efficient separation and transfer rates of photogenerated carriers and larger specific areas were found in γ-Ga2O3. On the basis of the analysis of the structures of γ-Ga2O3 and β-Ga2O3, it is proposed that the disordered or defective structure contributes to the improvement of photocatalytic activity to some extent. Therefore, it is significant to develop the photocatalyst with a stable structure and a certain number of defects at the same time.
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Affiliation(s)
- Xiaoyan Zhang
- College
of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000 Fujian Province, P. R. China
| | - Huijuan Huang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Yingguang Zhang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Dan Liu
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Na Tong
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Jinjin Lin
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Lu Chen
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Zizhong Zhang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
| | - Xuxu Wang
- State
Key Laboratory of Photocatalysis on Energy and Environment, College
of Chemistry, Fuzhou University, Fuzhou 350002, P. R. China
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28
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Li D, Zhou J, Chen X, Song H. Achieving Ultrafast and Stable Na-Ion Storage in FeSe 2 Nanorods/Graphene Anodes by Controlling the Surface Oxide. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22841-22850. [PMID: 29883096 DOI: 10.1021/acsami.8b06318] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Designing transitional metal selenides (TMSes) with superior rate and cyclic performance for sodium-ion storage remains great challenges. To achieve this task, the influence of surface oxides on Na-ion storage behavior of FeSe2 is investigated by designing FeSe2 with varying oxide content. It is found that surface oxide has an inhibitory effect on the activity of FeSe2. Small-sized FeSe2 on graphene with higher surface oxide content exhibits obviously inferior performance compared to large-sized FeSe2 with lower oxide content. By controlling oxide content, the prepared FeSe2 nanorods/graphene exhibits a high capacity of 459 mAh/g at 0.1 A/g and superior rate performance. Only 10% capacity decrease occurs with the increase in current density from 0.1 to 5 A/g. Even at 25 A/g (∼50 C), it delivers a capacity of 227 mAh/g with almost no decay after 800 cycles. The influence mechanism of surface oxide is investigated. The oxide can be converted to a sodiated shell with high mechanical strength and poor conductivity, which generates phase-transition resistance to suppress the sodiation of FeSe2 core, blocks the transfer of Na-ions and electrons in subsequent sodiation processes. Understanding the effect of surface oxide on Na-ion storage will be helpful in designing TMSes and other active materials.
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Affiliation(s)
- Dan Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing , 100029 , P. R. China
| | - Jisheng Zhou
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing , 100029 , P. R. China
| | - Xiaohong Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing , 100029 , P. R. China
| | - Huaihe Song
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology for Materials , Beijing University of Chemical Technology , Beijing , 100029 , P. R. China
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29
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Tuček J, Błoński P, Ugolotti J, Swain AK, Enoki T, Zbořil R. Emerging chemical strategies for imprinting magnetism in graphene and related 2D materials for spintronic and biomedical applications. Chem Soc Rev 2018; 47:3899-3990. [PMID: 29578212 DOI: 10.1039/c7cs00288b] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Graphene, a single two-dimensional sheet of carbon atoms with an arrangement mimicking the honeycomb hexagonal architecture, has captured immense interest of the scientific community since its isolation in 2004. Besides its extraordinarily high electrical conductivity and surface area, graphene shows a long spin lifetime and limited hyperfine interactions, which favors its potential exploitation in spintronic and biomedical applications, provided it can be made magnetic. However, pristine graphene is diamagnetic in nature due to solely sp2 hybridization. Thus, various attempts have been proposed to imprint magnetic features into graphene. The present review focuses on a systematic classification and physicochemical description of approaches leading to equip graphene with magnetic properties. These include introduction of point and line defects into graphene lattices, spatial confinement and edge engineering, doping of graphene lattice with foreign atoms, and sp3 functionalization. Each magnetism-imprinting strategy is discussed in detail including identification of roles of various internal and external parameters in the induced magnetic regimes, with assessment of their robustness. Moreover, emergence of magnetism in graphene analogues and related 2D materials such as transition metal dichalcogenides, metal halides, metal dinitrides, MXenes, hexagonal boron nitride, and other organic compounds is also reviewed. Since the magnetic features of graphene can be readily masked by the presence of magnetic residues from synthesis itself or sample handling, the issue of magnetic impurities and correct data interpretations is also addressed. Finally, current problems and challenges in magnetism of graphene and related 2D materials and future potential applications are also highlighted.
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Affiliation(s)
- Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic.
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30
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Gunda H, Das SK, Jasuja K. Simple, Green, and High‐Yield Production of Boron‐Based Nanostructures with Diverse Morphologies by Dissolution and Recrystallization of Layered Magnesium Diboride Crystals in Water. Chemphyschem 2018; 19:880-891. [DOI: 10.1002/cphc.201701033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Harini Gunda
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Saroj Kumar Das
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Kabeer Jasuja
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
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31
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Miao N, Xu B, Zhu L, Zhou J, Sun Z. 2D Intrinsic Ferromagnets from van der Waals Antiferromagnets. J Am Chem Soc 2018; 140:2417-2420. [DOI: 10.1021/jacs.7b12976] [Citation(s) in RCA: 231] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Naihua Miao
- School
of Materials Science and Engineering, Beihang University, Beijing 100191, China
- Center
for Integrated Computational Materials Engineering, International
Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
| | - Bin Xu
- Physics
Department and Institute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Linggang Zhu
- School
of Materials Science and Engineering, Beihang University, Beijing 100191, China
- Center
for Integrated Computational Materials Engineering, International
Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
| | - Jian Zhou
- School
of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Zhimei Sun
- School
of Materials Science and Engineering, Beihang University, Beijing 100191, China
- Center
for Integrated Computational Materials Engineering, International
Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, China
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32
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Ma G, Hua F, Sun K, Fenga E, Peng H, Zhang Z, Lei Z. Nanostructure selenium compounds as pseudocapacitive electrodes for high-performance asymmetric supercapacitor. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171186. [PMID: 29410830 PMCID: PMC5792907 DOI: 10.1098/rsos.171186] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 11/08/2017] [Indexed: 05/22/2023]
Abstract
The electrochemical performance of an energy conversion and storage device like the supercapacitor mainly depends on the microstructure and morphology of the electrodes. In this paper, to improve the capacitance performance of the supercapacitor, the all-pseudocapacitive electrodes of lamella-like Bi18SeO29/BiSe as the negative electrode and flower-like Co0.85Se nanosheets as the positive electrode are synthesized by using a facile low-temperature one-step hydrothermal method. The microstructures and morphology of the electrode materials are carefully characterized, and the capacitance performances are also tested. The Bi18SeO29/BiSe and Co0.85Se have high specific capacitance (471.3 F g-1 and 255 F g-1 at 0.5 A g-1), high conductivity, outstanding cycling stability, as well as good rate capability. The assembled asymmetric supercapacitor completely based on the pseudocapacitive electrodes exhibits outstanding cycling stability (about 93% capacitance retention after 5000 cycles). Moreover, the devices exhibit high energy density of 24.2 Wh kg-1 at a power density of 871.2 W kg-1 in the voltage window of 0-1.6 V with 2 M KOH solution.
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Affiliation(s)
- Guofu Ma
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
- Authors for correspondence: Guofu Ma e-mail:
| | - Fengting Hua
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Kanjun Sun
- College of Chemistry and Environmental Science, Lanzhou City University, Lanzhou 730070, People's Republic of China
| | - Enke Fenga
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Hui Peng
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Zhiguo Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Ziqiang Lei
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, People's Republic of China
- Authors for correspondence: Ziqiang Lei e-mail:
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33
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Tong Y, Guo Y, Mu K, Shan H, Dai J, Liu Y, Sun Z, Zhao A, Zeng XC, Wu C, Xie Y. Half-Metallic Behavior in 2D Transition Metal Dichalcogenides Nanosheets by Dual-Native-Defects Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703123. [PMID: 28861927 DOI: 10.1002/adma.201703123] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/30/2017] [Indexed: 06/07/2023]
Abstract
Two-dimensional transition metal dichalcogenides (TMDs) have been regarded as one of the best nonartificial low-dimensional building blocks for developing spintronic nanodevices. However, the lack of spin polarization in the vicinity of the Fermi surface and local magnetic moment in pristine TMDs has greatly hampered the exploitation of magnetotransport properties. Herein, a half-metallic structure of TMDs is successfully developed by a simple chemical defect-engineering strategy. Dual native defects decorate titanium diselenides with the coexistence of metal-Ti-atom incorporation and Se-anion defects, resulting in a high-spin-polarized current and local magnetic moment of 2D Ti-based TMDs toward half-metallic room-temperature ferromagnetism character. Arising from spin-polarization transport, the as-obtained T-TiSe1.8 nanosheets exhibit a large negative magnetoresistance phenomenon with a value of -40% (5T, 10 K), representing one of the highest negative magnetoresistance effects among TMDs. It is anticipated that this dual regulation strategy will be a powerful tool for optimizing the intrinsic physical properties of TMD systems.
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Affiliation(s)
- Yun Tong
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yuqiao Guo
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Kejun Mu
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Huan Shan
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jun Dai
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Yi Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhe Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Aidi Zhao
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xiao Cheng Zeng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Changzheng Wu
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yi Xie
- Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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Li G, Li L, Yuan H, Wang H, Zeng H, Shi J. Alkali-assisted mild aqueous exfoliation for single-layered and structure-preserved graphitic carbon nitride nanosheets. J Colloid Interface Sci 2017; 495:19-26. [DOI: 10.1016/j.jcis.2017.01.112] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Revised: 01/26/2017] [Accepted: 01/29/2017] [Indexed: 10/20/2022]
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35
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Wang X, Kong D, Huang ZX, Wang Y, Yang HY. Nontopotactic Reaction in Highly Reversible Sodium Storage of Ultrathin Co 9 Se 8 /rGO Hybrid Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13. [PMID: 28498516 DOI: 10.1002/smll.201603980] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 03/06/2017] [Indexed: 05/05/2023]
Abstract
Transition metal chalcogenide with tailored nanosheet architectures with reduced graphene oxide (rGO) for high performance electrochemical sodium ion batteries (SIBs) are presented. Via one-step oriented attachment growth, a facile synthesis of Co9 Se8 nanosheets anchored on rGO matrix nanocomposites is demonstrated. As effective anode materials of SIBs, Co9 Se8 /rGO nanocomposites can deliver a highly reversible capacity of 406 mA h g-1 at a current density of 50 mA g-1 with long cycle stability. It can also deliver a high specific capacity of 295 mA h g-1 at a high current density of 5 A g-1 indicating its high rate capability. Furthermore, ex situ transmission electron microscopy observations provide insight into the reaction path of nontopotactic conversion in the hybrid anode, revealing the highly reversible conversion directly between the hybrid Co9 Se8 /rGO and Co nanoparticles/Na2 Se matrix during the sodiation/desodiation process. In addition, it is experimentally demonstrated that rGO plays significant roles in both controllable growth and electrochemical conversion processes, which can not only modulate the morphology of the product but also tune the sodium storage performance. The investigation on hybrid Co9 Se8 /rGO nanosheets as SIBs anode may shed light on designing new metal chalcogenide materials for high energy storage system.
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Affiliation(s)
- Xianfen Wang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
| | - Dezhi Kong
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
| | - Zhi Xiang Huang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
| | - Ye Wang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore
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36
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Tu Z, Wu M, Zeng XC. Two-Dimensional Metal-Free Organic Multiferroic Material for Design of Multifunctional Integrated Circuits. J Phys Chem Lett 2017; 8:1973-1978. [PMID: 28412811 DOI: 10.1021/acs.jpclett.7b00636] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Coexistence of ferromagnetism and ferroelectricity in a single 2D material is highly desirable for integration of multifunctional units in 2D material-based circuits. We report theoretical evidence of C6N8H organic network as being the first 2D organic multiferroic material with coexisting ferromagnetic and ferroelectric properties. The ferroelectricity stems from multimode proton-transfer within the 2D C6N8H network, in which a long-range proton-transfer mode is enabled by the facilitation of oxygen molecule when the network is exposed to the air. Such oxygen-assisted ferroelectricity also leads to a high Curie temperature and coupling between ferroelectricity and ferromagnetism. We also find that hydrogenation and carbon doping can transform the 2D g-C3N4 network from an insulator to an n-type/p-type magnetic semiconductor with modest bandgap. Akin to the dopant induced n/p channels in silicon wafer, a variety of dopant created functional units can be integrated into the g-C3N4 wafer by design for nanoelectronic applications.
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Affiliation(s)
- Zhengyuan Tu
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Menghao Wu
- School of Physics and Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology , Wuhan 430074, China
| | - Xiao Cheng Zeng
- Department of Chemistry and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
- Collaborative Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China , Hefei, Anhui 230026, China
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37
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Li X, Yang J. Low-dimensional half-metallic materials: theoretical simulations and design. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2017. [DOI: 10.1002/wcms.1314] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xingxing Li
- Hefei National Laboratory for Physical Sciences at the Microscale; University of Science and Technology of China; Hefei China
- Synergetic Innovation Center of Quantum Information & Quantum Physics; University of Science and Technology of China; Hefei China
| | - Jinlong Yang
- Hefei National Laboratory for Physical Sciences at the Microscale; University of Science and Technology of China; Hefei China
- Synergetic Innovation Center of Quantum Information & Quantum Physics; University of Science and Technology of China; Hefei China
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38
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Tan C, Cao X, Wu XJ, He Q, Yang J, Zhang X, Chen J, Zhao W, Han S, Nam GH, Sindoro M, Zhang H. Recent Advances in Ultrathin Two-Dimensional Nanomaterials. Chem Rev 2017; 117:6225-6331. [PMID: 28306244 DOI: 10.1021/acs.chemrev.6b00558] [Citation(s) in RCA: 1956] [Impact Index Per Article: 279.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Since the discovery of mechanically exfoliated graphene in 2004, research on ultrathin two-dimensional (2D) nanomaterials has grown exponentially in the fields of condensed matter physics, material science, chemistry, and nanotechnology. Highlighting their compelling physical, chemical, electronic, and optical properties, as well as their various potential applications, in this Review, we summarize the state-of-art progress on the ultrathin 2D nanomaterials with a particular emphasis on their recent advances. First, we introduce the unique advances on ultrathin 2D nanomaterials, followed by the description of their composition and crystal structures. The assortments of their synthetic methods are then summarized, including insights on their advantages and limitations, alongside some recommendations on suitable characterization techniques. We also discuss in detail the utilization of these ultrathin 2D nanomaterials for wide ranges of potential applications among the electronics/optoelectronics, electrocatalysis, batteries, supercapacitors, solar cells, photocatalysis, and sensing platforms. Finally, the challenges and outlooks in this promising field are featured on the basis of its current development.
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Affiliation(s)
- Chaoliang Tan
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xiehong Cao
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore.,College of Materials Science and Engineering, Zhejiang University of Technology , 18 Chaowang Road, Hangzhou 310014, China
| | - Xue-Jun Wu
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Qiyuan He
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Jian Yang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Xiao Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Junze Chen
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Wei Zhao
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Shikui Han
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Gwang-Hyeon Nam
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Melinda Sindoro
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Hua Zhang
- Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
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39
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Guo J, Song K, Wu B, Zhu X, Zhang B, Shi Y. Atomically thin SiC nanoparticles obtained via ultrasonic treatment to realize enhanced catalytic activity for the oxygen reduction reaction in both alkaline and acidic media. RSC Adv 2017. [DOI: 10.1039/c7ra01701d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Atomically thin SiC derived from commercial SiC and possesses prominent ORR catalytic activity, comparable with Pt/C. The ORR process is dominated by a 4-electron pathway. Atomically thin SiC also exhibited outstanding durability and methanol crossover resistance.
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Affiliation(s)
- Jiahao Guo
- College of Chemistry and Materials Engineering
- Anhui Science and Technology University
- Fengyang
- P. R. China
| | - Kaiyue Song
- College of Chemistry and Materials Engineering
- Anhui Science and Technology University
- Fengyang
- P. R. China
| | - Bingbing Wu
- College of Chemistry and Materials Engineering
- Anhui Science and Technology University
- Fengyang
- P. R. China
| | - Xiang Zhu
- College of Chemistry and Materials Engineering
- Anhui Science and Technology University
- Fengyang
- P. R. China
| | - Beilin Zhang
- College of Chemistry and Materials Engineering
- Anhui Science and Technology University
- Fengyang
- P. R. China
| | - Yantao Shi
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian
- P. R. China
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40
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Dou Y, Zhang L, Xu X, Sun Z, Liao T, Dou SX. Atomically thin non-layered nanomaterials for energy storage and conversion. Chem Soc Rev 2017; 46:7338-7373. [DOI: 10.1039/c7cs00418d] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The research progress of atomically thin non-layered nanomaterials on energy storage and conversion applications is reviewed in this work.
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Affiliation(s)
- Yuhai Dou
- Institute for Superconducting and Electronic Materials
- Australian Institute for Innovative Materials
- University of Wollongong Australia
- Wollongong
- Australia
| | - Lei Zhang
- Institute for Superconducting and Electronic Materials
- Australian Institute for Innovative Materials
- University of Wollongong Australia
- Wollongong
- Australia
| | - Xun Xu
- Institute for Superconducting and Electronic Materials
- Australian Institute for Innovative Materials
- University of Wollongong Australia
- Wollongong
- Australia
| | - Ziqi Sun
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - Ting Liao
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology
- Brisbane
- Australia
| | - Shi Xue Dou
- Institute for Superconducting and Electronic Materials
- Australian Institute for Innovative Materials
- University of Wollongong Australia
- Wollongong
- Australia
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41
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Ternary Transitional Metal Chalcogenide Nanosheet with Significantly Enhanced Electrocatalytic Hydrogen-Evolution Activity. Catal Letters 2016. [DOI: 10.1007/s10562-016-1907-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Zhang P, Xu B, Gao C, Chen G, Gao M. Facile Synthesis of Co 9Se 8 Quantum Dots as Charge Traps for Flexible Organic Resistive Switching Memory Device. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30336-30343. [PMID: 27750409 DOI: 10.1021/acsami.6b09616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Uniform Co9Se8 quantum dots (CSQDs) were successfully synthesized through a facile solvothermal method. The obtained CSQDs with average size of 3.2 ± 0.1 nm and thickness of 1.8 ± 0.2 nm were demonstrated good stability and strong fluorescence under UV light after being easily dispersed in both of N,N-dimethylformamide (DMF) and deionized water. We demonstrated the flexible resistive switching memory device based on the hybridization of CSQDs and polyvinylpyrrolidone (PVP) (CSQDs-PVP). The device with the Al/CSQDs-PVP/Pt/poly(ethylene terephthalate) (PET) structure represented excellent switching parameters such as high ON/OFF current ratio, low operating voltages, good stability, and flexibility. The flexible resistive switching memory device based on hybridization of CSQDs and PVP has a great potential to be used in flexible and high-performance memory applications.
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Affiliation(s)
- Peng Zhang
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University , Lanzhou 730000, P. R. China
- Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University , Lanzhou 730000, P. R. China
| | - Benhua Xu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , Lanzhou 730000, P. R. China
| | - Cunxu Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University , Lanzhou 730000, P. R. China
- Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University , Lanzhou 730000, P. R. China
| | - Guilin Chen
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University , Lanzhou 730000, P. R. China
- Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University , Lanzhou 730000, P. R. China
| | - Meizhen Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University , Lanzhou 730000, P. R. China
- Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University , Lanzhou 730000, P. R. China
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43
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44
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Meng JP, Gong Y, Lin JH. Band Gaps and Photocurrent Responses of Bulk and Thin‐Film Coordination Polymers Based on 3,6‐Di(1
H
‐imidazol‐1‐yl)‐9
H
‐carbazole. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jiang Ping Meng
- Department of Applied ChemistryCollege of Chemistry and Chemical EngineeringChongqing University400030ChongqingP. R. China
| | - Yun Gong
- Department of Applied ChemistryCollege of Chemistry and Chemical EngineeringChongqing University400030ChongqingP. R. China
| | - Jian Hua Lin
- Department of Applied ChemistryCollege of Chemistry and Chemical EngineeringChongqing University400030ChongqingP. R. China
- State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking University100871BeijingP. R. China
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45
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Zhou J, Wang Y, Zhang J, Chen T, Song H, Yang HY. Two dimensional layered Co0.85Se nanosheets as a high-capacity anode for lithium-ion batteries. NANOSCALE 2016; 8:14992-15000. [PMID: 27471135 DOI: 10.1039/c6nr03571j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In recent years, two-dimensional (2D) layered transitional metal chalcogenides (TMCs) have received much attention as promising electrode materials in energy storage. Although recent reports on 2D TMC nanostructures have demonstrated promising electrochemical performances, the major scientific challenge is to develop a viable synthesis process to produce layered structures of chalcogenides (Co, Ni or Fe based TMCs) as anode materials. In this work, we propose the synthesis of layered Co0.85Se nanosheets in a solution based method by using a 2D oriented attachment strategy. The as-prepared Co0.85Se nanosheets exhibit specific capacities as high as 675 mA h g(-1) at 100 mA g(-1). When the current densities were further increased to 200, 500 and 1000 mA g(-1), the reversible capacities can still reach up to 645, 574 and 493 mA h g(-1) with excellent cycling life of 95, 85 and 73%, respectively. Li-ion storage performance of layered Co0.85Se nanosheets is higher than that of Co0.85Se microspheres as well as cobalt sulfide. The superior electrochemical performance of Co0.85Se nanosheets is attributed to their 2D layered structure which enhances electrical conductivity and improves diffusion pathways of the Li-ion within the host material. The synthesis method described in this work serves as a general route for the design and preparation of other 2D layered TMCs.
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Affiliation(s)
- Jisheng Zhou
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore. and State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, P. R. China.
| | - Ye Wang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore.
| | - Jun Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Tupei Chen
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Huaihe Song
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, P. R. China.
| | - Hui Ying Yang
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore.
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46
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Li T, Liu H, Wu Z, Liu Y, Guo Z, Zhang H. Seeded preparation of ultrathin FeS2 nanosheets from Fe3O4 nanoparticles. NANOSCALE 2016; 8:11792-11796. [PMID: 27243138 DOI: 10.1039/c6nr02211a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
FeS2 nanomaterials with two-dimensional features hold great promise for electrochemical and photovoltaic applications. However, the preparation of ultrathin FeS2 nanosheets is still challenging because of the lack of a tailor-made approach. In this work, FeS2 nanosheets with a thickness of 2.1 nm are prepared through a Fe3O4-seeded approach. Uniform Fe3O4 nanoparticles are foremost synthesized via the standard method in organic media. The injection of a S solution leads to the replacement of O in Fe3O4 through anion-exchange, which generates (110) facet-enriched FeS2 nuclei. The subsequent (110) facet-mediated oriented attachment and fusion of FeS2 nuclei produce ultrathin FeS2 nanosheets. As catalysts in the hydrogen evolution reaction, FeS2 nanosheets exhibit good electrochemical activity.
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Affiliation(s)
- Tingting Li
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China and State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Huiwen Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Zhennan Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Yi Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Zuoxing Guo
- Key Laboratory of Automobile Materials, Ministry of Education, College of Materials Science and Engineering, Jilin University, Changchun 130012, P. R. China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
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47
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Liu K, Li H, Lu Y, Wang R, Bei F, Lu L, Han Q, Wu X. A completely controlled sphere-to-bilayer micellar transition: the molecular mechanism and application on the growth of nanosheets. SOFT MATTER 2016; 12:3703-3709. [PMID: 26996652 DOI: 10.1039/c6sm00003g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The combination of a simple modification of the sample addition method to generate a sort of continuously accumulated external stimulation with only minute increments in amplitude and the introduction of probe molecules (herein aniline) within the micelle allow the direct continuous in situ spectroscopic monitoring of possible micellar transitions. In this way, a sphere-to-ellipsoid and further an ellipsoid-to-bilayer micellar transition of sodium dodecyl sulfate (SDS) induced by camphor sulfuric acid (CSA) is observed to experience four stages in the time sequence: (i) the accumulated protons released from CSA in the hydration layer of the micelle stimulate the rearrangement of SDS micelles; (ii) the micelles transform into ellipsoidal shapes as evidenced by the characteristic chemical shift anisotropy and the corresponding molecular dynamic properties from probe molecules; (iii) further protonation of aniline induces the micelle to turn into lamellar structures; (iv) aniline is freed from the micelle while leaving the SDS bilayers undistorted. Moreover, polyaniline nanosheets incorporating SDS bilayers in sandwich structures, which can display excellent capacitive behavior at relatively high current densities for the fabricated supercapacitors, are prepared from the aniline oriented by the bending energy of the SDS bilayers.
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Affiliation(s)
- Kong Liu
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Huanyuan Li
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Yuan Lu
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Ruijuan Wang
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Fengli Bei
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Lude Lu
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Qiaofeng Han
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
| | - Xiaodong Wu
- Key Laboratory for Soft Chemistry and Functional Materials, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China.
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48
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Wang Y, Li F, Dong S, Liu X, Li M. A facile approach for synthesizing Fe-based layered double hydroxides with high purity and its exfoliation. J Colloid Interface Sci 2016; 467:28-34. [DOI: 10.1016/j.jcis.2015.12.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 12/30/2015] [Accepted: 12/31/2015] [Indexed: 01/30/2023]
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49
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Wang L, Song C, Shi Y, Dang L, Jin Y, Jiang H, Lu Q, Gao F. Generalized Low-Temperature Fabrication of Scalable Multi-Type Two-Dimensional Nanosheets with a Green Soft Template. Chemistry 2016; 22:5575-82. [PMID: 26946433 DOI: 10.1002/chem.201504569] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Lanfang Wang
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing National Laboratory of Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Chuang Song
- Department of Materials Science and Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Yi Shi
- Department of Materials Science and Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Liyun Dang
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing National Laboratory of Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Ying Jin
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing National Laboratory of Microstructures; Nanjing University; Nanjing 210093 P. R. China
- College of Biological and Chemical Engineering; Anhui Polytechnic University; Wuhu 241000, Anhui P. R. China
| | - Hong Jiang
- Department of Materials Science and Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Qingyi Lu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing National Laboratory of Microstructures; Nanjing University; Nanjing 210093 P. R. China
| | - Feng Gao
- Department of Materials Science and Engineering; Collaborative Innovation Center of Advanced Microstructures; Nanjing University; Nanjing 210093 P. R. China
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50
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Kong X, Xu K, Zhang C, Dai J, Norooz Oliaee S, Li L, Zeng X, Wu C, Peng Z. Free-Standing Two-Dimensional Ru Nanosheets with High Activity toward Water Splitting. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02730] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiangkai Kong
- Department
of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
- School
of Physics and Electronic Information, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Kun Xu
- Hefei
National Laboratory for Physical Sciences at the Microscale, Collaborative
Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Changlin Zhang
- Department
of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Jun Dai
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Shirin Norooz Oliaee
- Department
of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Lingyan Li
- Department
of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
| | - Xiaocheng Zeng
- Department
of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, United States
| | - Changzheng Wu
- Hefei
National Laboratory for Physical Sciences at the Microscale, Collaborative
Innovation Center of Chemistry for Energy Materials, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenmeng Peng
- Department
of Chemical and Biomolecular Engineering, University of Akron, Akron, Ohio 44325, United States
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