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Xu Z, Lau TW, Xiong P, Li J, Li MMJ, Yin J, Zhu Y. Imaging Anisotropic Proton Intercalation in Photochromic MoO 3. NANO LETTERS 2024. [PMID: 39058683 DOI: 10.1021/acs.nanolett.4c02601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
Protonation represents a fundamental chemical process with promising applications in the fields of energy, environment, and memory devices. Probing the protonation mechanism, however, presents a formidable challenge owing to the elusiveness of intercalated protons. In this work, we utilize the atomic and electronic structure changes associated with protonation to directly image the proton intercalation pathways in α-MoO3 induced by UV illumination. We reveal the anisotropic intercalation behavior which is initiated by photocatalyzed water dissociation preferentially at the (001) edges and then propagates along the c axis, transforming α-MoO3 into HxMoO3 to realize photochromism. This photochromic process can be reversed via heating in air, leading to anisotropic proton deintercalation, also preferentially along the c axis. The observed anisotropic behavior can be attributed to the intrinsically low energy barriers for both proton migration along the c axis and water dissociation/formation at (001) edges.
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Affiliation(s)
- Zhihang Xu
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Ting Wai Lau
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Pei Xiong
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Jiangtong Li
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Molly Meng-Jung Li
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Jun Yin
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
| | - Ye Zhu
- Department of Applied Physics, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong 00000, China
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2
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Garrido M, Criado A, Prato M. Simultaneous exfoliation and functionalization of MoS 2 with tetrapyridyl porphyrin. NANOSCALE 2024; 16:13525-13533. [PMID: 38946392 DOI: 10.1039/d4nr01802h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Molybdenum disulfide (MoS2) attracts the attention of the scientific community due to its thickness dependent properties. To fully exploit these features, it is necessary to produce the material in mono or few-layers on a large scale. Several methodologies have been developed for this purpose, the most promising one being liquid phase exfoliation (LPE). LPE allows obtaining good quality exfoliated MoS2 in a simple and scalable manner. Herein we report the simultaneous exfoliation and functionalization of MoS2 in chloroform using a specific porphyrin, namely tetrapyridyl porphyrin. We have corroborated that the exfoliation of MoS2 in the volatile solvent increases in the presence of the porphyrin due to the different interactions between them, obtaining dispersions with good concentrations. Additionally, the optical properties of the porphyrin are modified by these interactions. The characterization carried out by several techniques supports the hypothesis that the interactions occur through the pyridyl rings of the porphyrin and the molybdenum atoms of the material.
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Affiliation(s)
- Marina Garrido
- Department of Chemical and Pharmaceutical Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
| | - Alejandro Criado
- Universidade da Coruña, CICA - Centro Interdisciplinar de Química e Bioloxía, Rúa as Carballeiras, 15071 A Coruña, Spain.
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 1, Trieste 34127, Italy.
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, Donostia-San Sebastián 20014, Spain.
- Ikerbasque, Basque Foundation for Science, Bilbao 48013, Spain
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3
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Yang R, Mei L, Lin Z, Fan Y, Lim J, Guo J, Liu Y, Shin HS, Voiry D, Lu Q, Li J, Zeng Z. Intercalation in 2D materials and in situ studies. Nat Rev Chem 2024; 8:410-432. [PMID: 38755296 DOI: 10.1038/s41570-024-00605-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2024] [Indexed: 05/18/2024]
Abstract
Intercalation of atoms, ions and molecules is a powerful tool for altering or tuning the properties - interlayer interactions, in-plane bonding configurations, Fermi-level energies, electronic band structures and spin-orbit coupling - of 2D materials. Intercalation can induce property changes in materials related to photonics, electronics, optoelectronics, thermoelectricity, magnetism, catalysis and energy storage, unlocking or improving the potential of 2D materials in present and future applications. In situ imaging and spectroscopy technologies are used to visualize and trace intercalation processes. These techniques provide the opportunity for deciphering important and often elusive intercalation dynamics, chemomechanics and mechanisms, such as the intercalation pathways, reversibility, uniformity and speed. In this Review, we discuss intercalation in 2D materials, beginning with a brief introduction of the intercalation strategies, then we look into the atomic and intrinsic effects of intercalation, followed by an overview of their in situ studies, and finally provide our outlook.
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Affiliation(s)
- Ruijie Yang
- Department of Materials Science and Engineering and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, P. R. China
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada
| | - Liang Mei
- Department of Materials Science and Engineering and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, P. R. China
| | - Zhaoyang Lin
- Department of Chemistry, Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Tsinghua University, Beijing, China
| | - Yingying Fan
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada
| | - Jongwoo Lim
- Department of Chemistry, Seoul National University, Seoul, Republic of Korea
| | - Jinghua Guo
- Advanced Light Source, Energy Storage and Distributed Resources Division, and Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Yijin Liu
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - Hyeon Suk Shin
- Center for 2D Quantum Heterostructures, Institute for Basic Science, and Department of Energy Science, Sungkyunkwan University (SKKU), Suwon, Republic of Korea
| | - Damien Voiry
- Institut Européen des Membranes, IEM, UMR, Université Montpellier, ENSCM, CNRS, Montpellier, France
| | - Qingye Lu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, Canada.
| | - Ju Li
- Department of Nuclear Science and Engineering and Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Zhiyuan Zeng
- Department of Materials Science and Engineering and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, P. R. China.
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China.
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Dai Y, He Q, Huang Y, Duan X, Lin Z. Solution-Processable and Printable Two-Dimensional Transition Metal Dichalcogenide Inks. Chem Rev 2024; 124:5795-5845. [PMID: 38639932 DOI: 10.1021/acs.chemrev.3c00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDs) with layered crystal structures have been attracting enormous research interest for their atomic thickness, mechanical flexibility, and excellent electronic/optoelectronic properties for applications in diverse technological areas. Solution-processable 2D TMD inks are promising for large-scale production of functional thin films at an affordable cost, using high-throughput solution-based processing techniques such as printing and roll-to-roll fabrications. This paper provides a comprehensive review of the chemical synthesis of solution-processable and printable 2D TMD ink materials and the subsequent assembly into thin films for diverse applications. We start with the chemical principles and protocols of various synthesis methods for 2D TMD nanosheet crystals in the solution phase. The solution-based techniques for depositing ink materials into solid-state thin films are discussed. Then, we review the applications of these solution-processable thin films in diverse technological areas including electronics, optoelectronics, and others. To conclude, a summary of the key scientific/technical challenges and future research opportunities of solution-processable TMD inks is provided.
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Affiliation(s)
- Yongping Dai
- Department of Chemistry, Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong 99907, China
| | - Yu Huang
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Xiangfeng Duan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Zhaoyang Lin
- Department of Chemistry, Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Tsinghua University, Beijing 100084, China
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Li E, Wang M, Hu X, Huang S, Yang Z, Chen J, Yu B, Guo B, Ma Z, Huang Y, Cao G, Li X. NH 4 + Pre-Intercalation and Mo Doping VS 2 to Regulate Nanostructure and Electronic Properties for High Efficiency Sodium Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308630. [PMID: 38100208 DOI: 10.1002/smll.202308630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/24/2023] [Indexed: 05/30/2024]
Abstract
Sodium-ion hybrid capacitors (SIHCs) have attracted much attention due to integrating the high energy density of battery and high out power of supercapacitors. However, rapid Na+ diffusion kinetics in cathode is counterbalanced with sluggish anode, hindering the further advancement and commercialization of SIHCs. Here, aiming at conversion-type metal sulfide anode, taking typical VS2 as an example, a comprehensive regulation of nanostructure and electronic properties through NH4 + pre-intercalation and Mo-doping VS2 (Mo-NVS2) is reported. It is demonstrated that NH4 + pre-intercalation can enlarge the interplanar spacing and Mo-doping can induce interlayer defects and sulfur vacancies that are favorable to construct new ion transport channels, thus resulting in significantly enhanced Na+ diffusion kinetics and pseudocapacitance. Density functional theory calculations further reveal that the introduction of NH4 + and Mo-doping enhances the electronic conductivity, lowers the diffusion energy barrier of Na+, and produces stronger d-p hybridization to promote conversion kinetics of Na+ intercalation intermediates. Consequently, Mo-NVS2 delivers a record-high reversible capacity of 453 mAh g-1 at 3 A g-1 and an ultra-stable cycle life of over 20 000 cycles. The assembled SIHCs achieve impressive energy density/power density of 98 Wh kg-1/11.84 kW kg-1, ultralong cycling life of over 15000 cycles, and very low self-discharge rate (0.84 mV h-1).
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Affiliation(s)
- Enzhi Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Mingshan Wang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Xi Hu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Siming Huang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Zhenliang Yang
- Institute of Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621908, P. R. China
| | - Junchen Chen
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Bo Yu
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Bingshu Guo
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Zhiyuan Ma
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Yun Huang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Guozhong Cao
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Xing Li
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
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6
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Zhu X, Su Z, Tan R, Guo C, Ai X, Qian J. Scalable Synthesis of Bilayer Graphene at Ambient Temperature. J Am Chem Soc 2024; 146:6388-6396. [PMID: 38408435 DOI: 10.1021/jacs.4c00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
In this work, we develop for the first time a facile chemical lithiation-assisted exfoliation approach to the controllable and scalable preparation of bilayer graphene. Biphenyl lithium (Bp-Li), a strong reducing reagent, is selected to realize the spontaneous Li-intercalation into graphite at ambient temperature, forming lithium graphite intercalation compounds (Li-GICs). The potential of Bp-Li (0.11 V vs Li/Li+), which is just lower than the potential of stage-2 lithium intercalation (0.125 V), enables the precise lithiation of graphite to stage-2 Li-GICs (LiC12). Intriguingly, the exfoliation of LiC12 leads to the bilayer-favored production of graphene, giving a high selectivity of 78%. Furthermore, the mild intercalation-exfoliation procedure yields high-quality graphene with negligible structural deterioration. The obtained graphene exhibits ultralow defect density (ID/IG ∼ 0.14) and a considerably high C/O ratio (∼29.7), superior to most current state-of-the-art techniques. This simple and scalable strategy promotes the understanding of chemical Li-intercalation methods for preparing high-quality graphene and shows great potential for layer-controlled engineering.
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Affiliation(s)
- Xiaolong Zhu
- Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States
| | - Zhikang Su
- Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Ran Tan
- Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Cunlan Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Xinping Ai
- Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Jiangfeng Qian
- Hubei Key Laboratory of Electrochemical Power Sources, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
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7
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Zhang S, Wang J, Chen K, Pu X, Zhu H, Zhao Y, Zhao A, Chen X, Fang Y, Chen Z, Cao Y. Aromatic Ketones as Mild Presodiating Reagents toward Cathodes for High-Performance Sodium-Ion Batteries. Angew Chem Int Ed Engl 2024; 63:e202317439. [PMID: 38251812 DOI: 10.1002/anie.202317439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 01/23/2024]
Abstract
Chemical presodiation (CP) is an effective strategy to enhance energy density of sodium ion batteries. However, the sodiation reagents reported so far are basically polycyclic aromatic hydrocarbons (PAHs) wth low reductive potential (~0.1 V vs. Na+ /Na), which could easily cause over-sodiation and structural deterioration of the presodiated cathodes. In this work, Aromatic ketones (AKs) are rationally designed as mild presodiating reagents by introducing a carbonyl group (C=O) into PAHs to balance the conjugated and inductive effect. As the representatives, two compounds 9-Fluorenoneb (9-FN) and Benzophenone (BP) manifest favorable equilibrium potential of 1.55 V and 1.07 V (vs. Na+ /Na), respectively. Note that 9-FN demonstrates versatile presodiating capability toward multiple Na uptake hosts (tunneled Na0.44 MnO2 , layered Na0.67 Ni0.33 Mn0.67 O2 , polyanionic Na4 Fe2.91 (PO4 )2 P2 O7 , Na3 V2 (PO4 )3 and Na3 V2 (PO4 )2 F3 ), enabling greatly improved initial charging capacity of the cathode to balance the irrevisible capacity of the anode. Our results indicate that the Aromatic ketones are competitive presodiating cathodic reagents for high-performance sodium-ion batteries, and will inspire more studies and application attempts in the future.
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Affiliation(s)
- Shihao Zhang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Jing Wang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Kean Chen
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Xiangjun Pu
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Huiying Zhu
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Yanan Zhao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Along Zhao
- Shenzhen Janaenergy techonulogy Co., Ltd., Shenzhen, 518000, China
| | - Xiaoyang Chen
- Shenzhen Janaenergy techonulogy Co., Ltd., Shenzhen, 518000, China
| | - Yongjin Fang
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
| | - Zhongxue Chen
- Key Laboratory of Hydraulic Machinery Transients, Ministry of Education, School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, China
| | - Yuliang Cao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, China
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8
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Hu X, Yu J, Wang Y, Guo W, Zhang X, Armand M, Kang F, Wang G, Zhou D, Li B. A Lithium Intrusion-Blocking Interfacial Shield for Wide-Pressure-Range Solid-State Lithium Metal Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308275. [PMID: 37852011 DOI: 10.1002/adma.202308275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/29/2023] [Indexed: 10/20/2023]
Abstract
Lithium garnets are considered as promising solid-state electrolytes for next-generation solid-state Li metal batteries (SSLBs). However, the Li intrusion driven by external stack pressure triggers premature of Li metal batteries. Herein, for the first time, an in situ constructed interfacial shield is reported to efficiently inhibit the pressure-induced Li intrusion in SSLBs. Theoretical modeling and experimental investigations reveal that high-hardness metallic Mo nanocrystals inside the shield effectively suppress Li dendrite growth without alloy hardening-derived interfacial contact deterioration. Meanwhile the electrically insulated Li2 S as a shield component considerably promotes interfacial wettability and hinders Li dendrite penetration into the bulk of garnet electrolyte. Interfacial shield-protected Li6.4 La3 Zr1.4 Ta0.6 O12 (LLZTO)-based cells exhibit significantly enhanced cyclability without short circuits under conventional pressures of ≈0.2 MPa and even at high pressure of up to 70 MPa; which is the highest endurable stack pressure reported for SSLBs using garnet electrolytes. These key findings are expected to promote the wide-pressure-range applications of SSLBs.
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Affiliation(s)
- Xia Hu
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jiahao Yu
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yao Wang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Weiqian Guo
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xiang Zhang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Michel Armand
- Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, Vitoria-Gasteiz, 01510, Spain
| | - Feiyu Kang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Guoxiu Wang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Dong Zhou
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Baohua Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
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9
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Huang Q, Yang M, Rani KK, Wang L, Wang R, Liu X, Huang D, Yang Z, Devasenathipathy R, Chen DH, Fan Y, Chen W. Sheet-Isolated MoS 2 Used for Dispersing Pt Nanoparticles and its Application in Methanol Fuel Cells. Chemistry 2024; 30:e202302934. [PMID: 37842799 DOI: 10.1002/chem.202302934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/08/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
It is highly challenging to activate the basal plane and minimize the π-π stacking of MoS2 sheets, thus enhancing its catalytic performance. Here, we display an approach for making well-dispersed MoS2 . By using the N-doped multi-walled carbon nanotubes (NMWCNTs) as an isolation unit, the aggregation of MoS2 sheets was effectively reduced, favoring the dispersion of Pt nanoparticles (noted as Pt/NMWCNTs-isolated-MoS2 ). Excellent bifunctional catalytic performance for methanol oxidation and oxygen reduction reaction (MOR/ORR) were demonstrated by the produced Pt/NMWCNTs-isolated-MoS2 . In comparison to Pt nanoparticles supported on MoS2 (Pt/MoS2 ), the MOR activity (2314.14 mA mgpt -1 ) and stability (317.69 mA mgpt -1 after 2 h of operation) on Pt/NMWCNTs-isolatedMoS2 were 24 and 232 times higher, respectively. As for ORR, Pt/NMWCNTs-isolated-MoS2 holds large half-wave potential (0.88 V) and high stability (92.71 % after 22 h of operation). This work presents a tactic for activating the basal planes and reducing the π-π stacking of 2D materials to satisfy their applications in electrocatalysis. In addition, the proposed sheet-isolation method can be used for fabricating other 2D materials to promote the dispersion of nanoparticles, which assist its application in other fields of energy as well as the environment.
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Affiliation(s)
- Qiulan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Mengping Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics (KLOFE) and, Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Limin Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Ruixiang Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Xiaotian Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Dujuan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Zhongyun Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics (KLOFE) and, Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211816, China
| | - Du-Hong Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
| | - Wei Chen
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China
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10
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Alharbi TMD, Raston CL. High conversion continuous flow exfoliation of 2D MoS 2. NANOSCALE ADVANCES 2023; 5:6405-6409. [PMID: 38024295 PMCID: PMC10662006 DOI: 10.1039/d3na00880k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023]
Abstract
We report a low-cost and highly efficient process for exfoliating of MoS2 using an energy efficient vortex fluidic device (VFD). This method is high in green chemistry metrics in avoiding the use of auxiliary substances, and the process is scalable, with a conversion of as received MoS2 into 2D sheets at ∼73%.
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Affiliation(s)
- Thaar M D Alharbi
- Physics Department, Faculty of Science, Taibah University Almadinah Almunawarrah 42353 Saudi Arabia
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5001 Australia
| | - Colin L Raston
- Flinders Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University Adelaide SA 5001 Australia
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11
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Zhao D, Xu S, Wang H, Shen Y, Xu Q. Exfoliation of MoS 2 by zero-valent transition metal intercalation. Chem Commun (Camb) 2023. [PMID: 37309252 DOI: 10.1039/d3cc02528d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Exfoliation of bulk molybdenum disulfide (MoS2) into few-layered nanosheets is achieved with the assistance of zero-valent transition metal (Co0, Ni0, Cu0) intercalation. The as-prepared MoS2 nanosheets are characterized to consist of 1T- and 2H-phases with an enhanced electrocatalytic hydrogen evolution reaction (HER) activity. This work provides a novel strategy to prepare 2D MoS2 nanosheets using mild reductive reagents, which is expected to avoid the undesired structural damage from conventional chemical exfoliation.
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Affiliation(s)
- Duanduan Zhao
- College of Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, P. R. China.
| | - Song Xu
- College of Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, P. R. China.
| | - Hengan Wang
- International College, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yonglong Shen
- School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450052, P. R. China.
| | - Qun Xu
- College of Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450052, P. R. China.
- School of Material Science and Engineering, Zhengzhou University, Zhengzhou 450052, P. R. China.
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12
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Thoutam LR, Mathew R, Ajayan J, Tayal S, Nair SV. A critical review of fabrication challenges and reliability issues in top/bottom gated MoS 2field-effect transistors. NANOTECHNOLOGY 2023; 34:232001. [PMID: 36731113 DOI: 10.1088/1361-6528/acb826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
The voyage of semiconductor industry to decrease the size of transistors to achieve superior device performance seems to near its physical dimensional limitations. The quest is on to explore emerging material systems that offer dimensional scaling to match the silicon- based technologies. The discovery of atomic flat two-dimensional materials has opened up a completely new avenue to fabricate transistors at sub-10 nanometer level which has the potential to compete with modern silicon-based semiconductor devices. Molybdenum disulfide (MoS2) is a two-dimensional layered material with novel semiconducting properties at atomic level seems like a promising candidate that can possibly meet the expectation of Moore's law. This review discusses the various 'fabrication challenges' in making MoS2based electronic devices from start to finish. The review outlines the intricate challenges of substrate selection and various synthesis methods of mono layer and few-layer MoS2. The review focuses on the various techniques and methods to minimize interface defect density at substrate/MoS2interface for optimum MoS2-based device performance. The tunable band-gap of MoS2with varying thickness presents a unique opportunity for contact engineering to mitigate the contact resistance issue using different elemental metals. In this work, we present a comprehensive overview of different types of contact materials with myriad geometries that show a profound impact on device performance. The choice of different insulating/dielectric gate oxides on MoS2in co-planar and vertical geometry is critically reviewed and the physical feasibility of the same is discussed. The experimental constraints of different encapsulation techniques on MoS2and its effect on structural and electronic properties are extensively discussed.
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Affiliation(s)
- Laxman Raju Thoutam
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi 682041, India
| | - Ribu Mathew
- School of Electrical & Electronics Engineering, VIT Bhopal University, Bhopal, 466114, India
| | - J Ajayan
- Department of Electronics and Communication Engineering, SR University, Warangal, 506371, India
| | - Shubham Tayal
- Department of Electronics and Communication Engineering, SR University, Warangal, 506371, India
| | - Shantikumar V Nair
- Amrita School of Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Ponekkara, Kochi 682041, India
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13
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Giri A, Park G, Jeong U. Layer-Structured Anisotropic Metal Chalcogenides: Recent Advances in Synthesis, Modulation, and Applications. Chem Rev 2023; 123:3329-3442. [PMID: 36719999 PMCID: PMC10103142 DOI: 10.1021/acs.chemrev.2c00455] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The unique electronic and catalytic properties emerging from low symmetry anisotropic (1D and 2D) metal chalcogenides (MCs) have generated tremendous interest for use in next generation electronics, optoelectronics, electrochemical energy storage devices, and chemical sensing devices. Despite many proof-of-concept demonstrations so far, the full potential of anisotropic chalcogenides has yet to be investigated. This article provides a comprehensive overview of the recent progress made in the synthesis, mechanistic understanding, property modulation strategies, and applications of the anisotropic chalcogenides. It begins with an introduction to the basic crystal structures, and then the unique physical and chemical properties of 1D and 2D MCs. Controlled synthetic routes for anisotropic MC crystals are summarized with example advances in the solution-phase synthesis, vapor-phase synthesis, and exfoliation. Several important approaches to modulate dimensions, phases, compositions, defects, and heterostructures of anisotropic MCs are discussed. Recent significant advances in applications are highlighted for electronics, optoelectronic devices, catalysts, batteries, supercapacitors, sensing platforms, and thermoelectric devices. The article ends with prospects for future opportunities and challenges to be addressed in the academic research and practical engineering of anisotropic MCs.
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Affiliation(s)
- Anupam Giri
- Department of Chemistry, Faculty of Science, University of Allahabad, Prayagraj, UP-211002, India
| | - Gyeongbae Park
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk790-784, Korea.,Functional Materials and Components R&D Group, Korea Institute of Industrial Technology, Gwahakdanji-ro 137-41, Sacheon-myeon, Gangneung, Gangwon-do25440, Republic of Korea
| | - Unyong Jeong
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Gyeongbuk790-784, Korea
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14
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Mia AK, Meyyappan M, Giri PK. Two-Dimensional Transition Metal Dichalcogenide Based Biosensors: From Fundamentals to Healthcare Applications. BIOSENSORS 2023; 13:bios13020169. [PMID: 36831935 PMCID: PMC9953520 DOI: 10.3390/bios13020169] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/16/2023] [Accepted: 01/20/2023] [Indexed: 06/13/2023]
Abstract
There has been an exponential surge in reports on two-dimensional (2D) materials ever since the discovery of graphene in 2004. Transition metal dichalcogenides (TMDs) are a class of 2D materials where weak van der Waals force binds individual covalently bonded X-M-X layers (where M is the transition metal and X is the chalcogen), making layer-controlled synthesis possible. These individual building blocks (single-layer TMDs) transition from indirect to direct band gaps and have fascinating optical and electronic properties. Layer-dependent opto-electrical properties, along with the existence of finite band gaps, make single-layer TMDs superior to the well-known graphene that paves the way for their applications in many areas. Ultra-fast response, high on/off ratio, planar structure, low operational voltage, wafer scale synthesis capabilities, high surface-to-volume ratio, and compatibility with standard fabrication processes makes TMDs ideal candidates to replace conventional semiconductors, such as silicon, etc., in the new-age electrical, electronic, and opto-electronic devices. Besides, TMDs can be potentially utilized in single molecular sensing for early detection of different biomarkers, gas sensors, photodetector, and catalytic applications. The impact of COVID-19 has given rise to an upsurge in demand for biosensors with real-time detection capabilities. TMDs as active or supporting biosensing elements exhibit potential for real-time detection of single biomarkers and, hence, show promise in the development of point-of-care healthcare devices. In this review, we provide a historical survey of 2D TMD-based biosensors for the detection of bio analytes ranging from bacteria, viruses, and whole cells to molecular biomarkers via optical, electronic, and electrochemical sensing mechanisms. Current approaches and the latest developments in the study of healthcare devices using 2D TMDs are discussed. Additionally, this review presents an overview of the challenges in the area and discusses the future perspective of 2D TMDs in the field of biosensing for healthcare devices.
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Affiliation(s)
- Abdul Kaium Mia
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - M. Meyyappan
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - P. K. Giri
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, India
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India
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15
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An R, Liang Y, Du P, Lei P, Zhang H. Facile synthesis of rare earth-doped CeF 3 two-dimensional nanosheets and their application in ratiometric luminescence temperature sensing. CrystEngComm 2022. [DOI: 10.1039/d2ce00550f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Rare earth-doped CeF3 two-dimensional nanosheets have been successfully synthesized and their potential application as a ratiometric luminescent thermometer.
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Affiliation(s)
- Ran An
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Yuan Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, China
| | - Pengye Du
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Pengpeng Lei
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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