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Konieczny P, Sas W, Czernia D, Pacanowska A, Fitta M, Pełka R. Magnetic cooling: a molecular perspective. Dalton Trans 2022; 51:12762-12780. [PMID: 35900061 DOI: 10.1039/d2dt01565j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The magnetocaloriceffect is considered as an energy-efficient and environmentally friendly technique which can take cooling technology to the next level. Apart from its commercial application at room temperature, magnetic refrigeration is an up-and-coming solution for the cryogenic regime, especially as an alternative to He3 systems. Molecular magnets reveal advantageous features for ultra-low cooling which are competitive with intermetallic and lanthanide alloys. Here, we present a guide to the current status of magnetocaloric effect research of molecular magnets with a theoretical background focused on the inverse magnetocaloric effect and an overview of recent results and developments, including the rotating magnetocaloric effect.
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Affiliation(s)
- Piotr Konieczny
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Wojciech Sas
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Dominik Czernia
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | | | - Magdalena Fitta
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
| | - Robert Pełka
- Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342 Kraków, Poland.
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Qiao N, Li XX, Chen Y, Xin XY, Yang C, Dong SS, Wang YZ, Li XJ, Hua YP, Wang WM. Three Ln2 compounds (Gd2, Tb2 and Dy2) with a Ln2O2 center showing magnetic refrigeration property and single-molecular magnet behavior. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Coupling strong photoluminescence and narrow band gap in a new tetranuclear copper cluster: Copper(I) iodide with dimethylamine. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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4
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Chen WT. Preparation, photoluminescence and semiconductive band gap of a gadolinium compound. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2020.1793354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Wen-Tong Chen
- Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Coordination Chemistry, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji’an, Jiangxi, China
- Department of Ecological and Resources Engineering, Fujian Key laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, Fujian, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
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Chen WT. Preparation and characterization of a novel erbium(III)-mercury(II) compound with green upconversion photoluminescence. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2020.1769661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Wen-Tong Chen
- Institute of Applied Chemistry, Jiangxi Province Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an, P.R. China
- Department of Ecological and Resources Engineering, Fujian Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, P.R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, P.R. China
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Luo H, Chen WT. Preparation and characterization of two lanthanide complexes with one-dimensional chain-like structures. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820948367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Two novel RE–Hg (RE = rare earth) complexes [RE(IA)3(H3O)2]2 n·2 n(HgCl4)· n(HgCl5)· nH2O·3 nH3O (RE = Y, 1; Lu, 2; IA = isonicotinic acid anion) were synthesized through hydrothermal reactions and are structurally characterized by single-crystal X-ray diffraction. The two complexes are isostructures and are characteristic of a one-dimensional chain-like structure. Both complexes are characterized by a three-dimensional supramolecular network. Photoluminescence experiments using solid-state samples show that they possess emission bands in the blue or red region. They have remarkable CIE chromaticity coordinates of (0.1172, 0.182) and (0.623, 0.3765), respectively. As a result, they are potential candidates for light-emitting materials for light-emitting diodes. They show wide optical band gaps of 3.29 eV and 2.89 eV, as revealed by the solid-state UV/Vis diffuse reflectance spectra.
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Affiliation(s)
- Hui Luo
- Health Science Center, Jinggangshan University, Ji’an, P.R. China
| | - Wen-Tong Chen
- Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Ji’an Key Laboratory of Photoelectric Crystal Materials and Device, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jiangxi Province Key Laboratory of Coordination Chemistry, Jinggangshan University, Ji’an, P.R. China
- Department of Ecological and Resources Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, P.R. China
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7
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Chen WT. Synthesis, structure, photophysical properties, and energy transfer mechanism of an erbium–mercury compound. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820915579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A hydrothermal reaction leads to the formation of a novel erbium–mercury compound [Er(IA)3(H3O)(H2O)] n(0.5 nHg2I6) (1) (HIA = isonicotinic acid). The compound has been characterized by single-crystal X-ray diffraction. It is characteristic of a one-dimensional chain-like structure and a two-dimensional supramolecular layer. A solid-state photoluminescence experiment reveals that this compound displays upconversion green photoluminescence. The photoluminescence emission peaks can be attributed to the 4 G11/2 → 4 I15/2, 4 F7/2 → 4 I15/2, and 2 H11/2 → 4 I15/2 of the Er3+ ions. The energy transfer mechanism is consistent with the energy-level diagrams of the erbium ions and isonicotinic acid ligand. This compound possesses Commission Internationale de I'Éclairage chromaticity coordinates of 0.1755 and 0.5213. A solid-state diffuse reflectance measurement reveals that this compound features a narrow optical band gap of 1.97 eV.
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Affiliation(s)
- Wen-Tong Chen
- Institute of Applied Chemistry, School of Chemistry and Chemical Engineering, Jiangxi Province Key Laboratory of Coordination Chemistry, Humic Acid Utilization Engineering Research Center of Jiangxi Province, Jinggangshan University, Ji’an, Jiangxi, P. R. of China
- Department of Ecological and Resources Engineering, Fujian Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Wuyishan, P.R. China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, P.R. China
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Two Ln(III)2 (Ln = Gd and Dy) compounds showing magnetic refrigeration and slow magnetic relaxation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127997] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Preparation, structures, photophysical properties and energy transfer mechanism of two novel samarium and thulium compounds. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Photophysical properties and energy transfer mechanism of a praseodymium compound with a two-dimensional layer. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519819900273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A hydrothermal reaction results in the formation of a novel [Pr2(2,5-PA)2(2,5-HPA)2(H2O)4] n·2 nH2O complex (2,5-H2PA = 2,5-pyridinedicarboxylic acid). The complex is structurally characterized by single-crystal X-ray diffraction and crystallizes in the space group P21 of the monoclinic system with two formula units in one cell. This praseodymium complex is characterized by a two-dimensional layered structure. A solid-state photoluminescence experiment reveals that the praseodymium complex shows an emission in the red region. The complex has Commission Internationale de I’Éclairage chromaticity coordinates of 0.5495 and 0.4492. The photoluminescence emission bands could be assigned to the characteristic emission of the 4 f electron intrashell transition of the 3 P0 → 3 H5, 1 D2 → 3 H4, 3 P0 → 3 H6, 3 P0 → 3 F2, and 3 P1 → 3 F3 of the Pr3+ ions. The energy transfer mechanism is explained by the energy level diagrams of the praseodymium ions and the 2,5-H2PA ligand. A solid-state diffuse reflectance measurement shows that the complex possesses a wide optical band gap of 3.48 eV.
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Chen WT. Photophysical properties and energy transfer mechanism of three novel lanthanide upconverting materials (UCMs). J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2019.121160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Two LnIII4 (LnIII = Gd and Dy) clusters constructed by 8-hydroxyquinoline schiff base and β-diketonate coligand: Magnetic refrigeration property and single-molecule magnet behavior. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Zheng TF, Tian XM, Ji J, Luo H, Yao SL, Liu SJ, Tang BE, Zhao YJ, Mao J, Zhao Q, He KH, Wen HR. Two Gd2 cluster complexes with monocarboxylate ligands displaying significant magnetic entropy changes. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127094] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Liu SJ, Han SD, Zhao JP, Xu J, Bu XH. In-situ synthesis of molecular magnetorefrigerant materials. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.05.009] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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15
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Zheng TF, Tian XM, Wu LH, Liu SJ, Yao SL, He KH, Huang H, Liao J, Chen JL, Wen HR. Two GdIII complexes with different structures and magnetocaloric properties induced by metal ion sources. NEW J CHEM 2019. [DOI: 10.1039/c9nj04984c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two 0D/3D GdIII complexes based on dl-malic acid have been constructed and they display weak ferromagnetic behaviors and significant MCEs.
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Affiliation(s)
- Teng-Fei Zheng
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Xue-Mei Tian
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Lin-Hui Wu
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Sui-Jun Liu
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Shu-Li Yao
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Kun-Huan He
- College of Petroleum and Chemical Engineering
- Beibu Gulf University
- Qinzhou 535011
- P. R. China
| | - Haiping Huang
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jinsheng Liao
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - Jing-Lin Chen
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
| | - He-Rui Wen
- School of Chemistry and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- P. R. China
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Wang WM, Yue RX, Gao Y, Wang MJ, Hao SS, Shi Y, Kang XM, Wu ZL. Large magnetocaloric effect and remarkable single-molecule-magnet behavior in triangle-assembled LnIII6 clusters. NEW J CHEM 2019. [DOI: 10.1039/c9nj03921j] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Two intriguing triangle-assembled LnIII6 clusters (1 and 2) have been synthesized. The magnetic study reveals that 1 displays a larger cryogenic magnetocaloric effect, while 2 exhibits remarkable SMM behaviors.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
| | - Rong-Xin Yue
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Yu Gao
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Mei-Jiao Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Sha-Sha Hao
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Ying Shi
- Department of Biology
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xiao-Min Kang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- P. R. China
| | - Zhi-Lei Wu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- P. R. China
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Wang WM, He LY, Wang XX, Shi Y, Wu ZL, Cui JZ. Linear-shaped LnIII4 and LnIII6 clusters constructed by a polydentate Schiff base ligand and a β-diketone co-ligand: structures, fluorescence properties, magnetic refrigeration and single-molecule magnet behavior. Dalton Trans 2019; 48:16744-16755. [DOI: 10.1039/c9dt03478a] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A series of linear-shaped LnIII4 and LnIII6 clusters were synthesized. The structures, fluorescence properties and magnetic properties have been deeply studied.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
- Department of Chemistry
| | - Li-Yuan He
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xin-Xin Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Ying Shi
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Zhi-Lei Wu
- Department of Chemistry
- Tianjin University
- Tianjin
- China
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Wang WM, Zhang L, Li XZ, He LY, Wang XX, Shi Y, Wang J, Dong J, Wu ZL. Structures, fluorescence properties and magnetic properties of a series of rhombus-shaped LnIII4 clusters: magnetocaloric effect and single-molecule-magnet behavior. NEW J CHEM 2019. [DOI: 10.1039/c9nj02872b] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family LnIII4 clusters were successfully synthesized and structurally characterized. Magnetic studies show that Gd4 cluster displays magnetic refrigeration, while Dy4 cluster demonstrates two distinct slow magnetic relaxation processes.
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Affiliation(s)
- Wen-Min Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
| | - Li Zhang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xian-Zhen Li
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Li-Yuan He
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Xin-Xin Wang
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Ying Shi
- Department of Biology
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Jie Wang
- Department of Biology
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Jie Dong
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- China
- Department of Chemistry
| | - Zhi-Lei Wu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education)
- Nankai University
- Tianjin 300071
- China
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Petersen SV, Qiu L, Li D. Controlled Gelation of Graphene Towards Unprecedented Superstructures. Chemistry 2017; 23:13264-13269. [PMID: 28714171 DOI: 10.1002/chem.201703121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/07/2022]
Abstract
Graphene exhibits a range of exceptional physical properties and holds great promise for development of novel bulk materials for widespread applications. Properly engineering of assembled structures of graphene at multiple length scales is essential to realize its full potential in bulk forms. In this Concept article, we highlight the unique colloidal and gelation behavior of a commonly used precursor for graphene, graphene oxide (GO), and discuss how the colloidal chemistry of GO and reduced GO can enable new scalable and cost-effective approaches to construct graphene-based soft superstructures with excellent properties.
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Affiliation(s)
- Søren Vermehren Petersen
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia.,Institute of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C, Denmark
| | - Ling Qiu
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia
| | - Dan Li
- Department of Materials Science and Engineering, Monash Centre for Atomically Thin Materials, Monash University, Clayton, VIC, 3800, Australia.,Department of Chemical Engineering, University of Melbourne, Melbourne, VIC, 3010, Australia
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