FlatChem最新文献

{"title":"Enhanced performance of Na4Ti5O12 nanowall arrays for next-generation pseudocapacitors through sodiation treatment","authors":"Nawishta Jabeen ,&nbsp;Ahmad Hussain ,&nbsp;Faiqa Shahid ,&nbsp;Mahmoud M. Hessien","doi":"10.1016/j.flatc.2024.100715","DOIUrl":"10.1016/j.flatc.2024.100715","url":null,"abstract":"<div><p>Pseudocapacitors are well-known for performing redox reactions at the interfaces of electrode and electrolyte for storing and releasing energy competently. TiO₂ is thought to be a potential anode material for Na-ions batteries as it possesses the ability to store large sodium content at the interplanar spacing to amplify the electrochemical performances. However, for pseudocapacitors as anodes, the exact chemical mechanisms and the interaction among surface behavior and electrochemical properties are still needed to be explored. Herein this research, for the first time, monoclinic Na₄Ti₅O₁₂ nanowall arrays electrode (M−NTO NWAs) has been synthesized to investigate its structure, morphology and electrochemical characterizations as anode for supercapacitors (SCs). The mechanism of sodiation treatment for M−NTO NWAs as anode has elevated its excellent electrochemical properties. M−NTO NWAs is operated at a highly negative potential window between −1.0 and 0.0 V to achieve an excellent specific capacitance of 429 F/g, which is much superior compared to the HTO NSA electrode (295 F/g) and outstanding capacitance retention of ∼97 % is achieved after 3000 successive cycles at a high current density of 1 A/g. Enhanced electrochemical properties display the complementary contributions of structural involvement via the sodiation mechanism of M−NTO NWAs. Also, this work propels a new direction in utilizing ions insertion strategies to enhance electrode’s high performance for energy storage devices.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100715"},"PeriodicalIF":5.9,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141622179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Battery-free flexible wireless temperature sensing for food storage","authors":"Zhengzhong Wan ,&nbsp;Xujun Chen ,&nbsp;Danyao Song ,&nbsp;Zihao Wu ,&nbsp;Ruihua Zhang ,&nbsp;Meng Wang ,&nbsp;Xinqing Xiao","doi":"10.1016/j.flatc.2024.100709","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100709","url":null,"abstract":"<div><p>The method of monitoring food temperature during food storage needs to be improved to continuously and accurately perceive the temperature of the food in the package to ensure the quality and safety of the food during storage. This paper proposes and develops a battery-free flexible wireless temperature sensing system (BFTS) for food storage. The BFTS consists of a battery-free flexible wireless temperature sensing tag (BFTT), a wireless reader, and a personal computer (PC). The BFTT developed in this paper has good flexibility and can be placed inside the food package to realize the continuous monitoring of temperature changes. The flexible circuits of the BFTT were fabricated by laser engraving laser-induced graphene (LIG) −copper (Cu) plating film made with Cu plating on LIG. The LIG-Cu plating film has good thickness uniformity, electrical conductivity, and laser engraving processability. The antenna of BFTT has good performance. The wireless reader is connected to the PC using a data line, and the BFTT communicates wirelessly with the wireless reader using ultra-high frequency (UHF) radio frequency identification (RFID). The BFTT was realized by the wireless radio frequency (RF) as the supply power from the wireless reader. The BFTS could realize the temperature monitoring of food stored at 0℃ and −18℃, and it has the advantages of low cost, simple manufacturing process, and low energy consumption, which could be used to continuously and accurately monitor the inside temperature of the food packages. Overall, the LIG-Cu plating film developed in this paper could be used in the fabrication of flexible circuits, and the temperature monitoring inside food packages realized by the BFTS has potential applications in actual food storage.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100709"},"PeriodicalIF":5.9,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective mass transport mediated by two-dimensional confined water: A comprehensive review","authors":"Xiaorui Jin ,&nbsp;Yuan Chen ,&nbsp;Xiaofen Liu ,&nbsp;Lan Lan ,&nbsp;Yunfei Sun ,&nbsp;Meiling Wu ,&nbsp;Kai-Ge Zhou","doi":"10.1016/j.flatc.2024.100708","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100708","url":null,"abstract":"<div><p>Confined mass transport based on two-dimensional (2D) materials breaks the trade-off effect between permeability and selectivity, significantly enhancing the efficiency of mass transport. However, the prevailing view that mass transport performance is primarily determined by the structural design of molecules or ions within channels and the regulation of channel walls has led to the neglect of surrounding hydration layers. Recent studies indicate that the interactions between confined water and transport substances, particularly the formation of hydration shells, significantly influence the mass transport process. Therefore, a thorough investigation of the behavior and properties of confined water, especially its presence, regulation methods, and the enhanced mechanisms of mass transport in 2D channels is particularly urgent and constitutes an indispensable research direction for the future development of materials science and engineering technologies. This review summarizes the latest progress on 2D confined water including its structure, properties, and behavior under natural conditions or environmental influences, the mechanisms enhancing mass transport, and regulatory approaches, as well as multiple applications such as membrane separation, drug delivery, and confined reactions. Lastly, we present instructive perspectives on the current challenges and future directions in the study of confined water.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100708"},"PeriodicalIF":5.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simultaneous engineering of the conductivity and work function of biphenylene via fluorine adsorption","authors":"Jiao Zhang ,&nbsp;Ying Xie ,&nbsp;Yinan Tang ,&nbsp;Yinyin Qian ,&nbsp;Jing He ,&nbsp;Zhe Wang ,&nbsp;Yanchang Zhang ,&nbsp;Jiankang Chen ,&nbsp;Lin Yang ,&nbsp;Bing Zheng","doi":"10.1016/j.flatc.2024.100704","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100704","url":null,"abstract":"<div><p>Biphenylene (BP) is a new member of the two-dimensional C nanomaterial family, and successful fabrication of BP offers an excellent opportunity for developing innovative C-based electronics. However, its unusual metallicity critically restricts its applications in field-effect transistors (FETs) and photocatalysis. Simultaneously, its relatively low work function (<em>ϕ</em>, 4.33 eV) seriously restricts its applications in anode materials of electronic devices. Therefore, understanding the tunabilities of electronic properties and <em>ϕ</em> of BP-based nanomaterials is crucial to guide experimental exploration; nevertheless, to date, little attention has been paid to this area. Herein, we theoretically demonstrate that conductivity of fluorinated BP (F<em>_n</em>-BP) evolves in the order metallic → semimetallic → semiconductivity with increasing F concentration, attributed to a bonding transition of BP (sp² → sp² + sp³ → sp³). Particularly, <em>ϕ</em> of BP can be significantly improved (4.82–6.97 eV) by fluorination, approximately two-fold higher than that of F<em>_n</em>-graphene owing to p electron transfer between F and BP. Consequently, metallic F_2D-BP and semimetallic F_4S-BP with favorable <em>ϕ</em>s can be utilized as substitutes for Au and Pt anodes, respectively. Specifically, F_8D-BP, F_16D-BP, and F_24D-BP with exceptional band gaps of 0.40, 2.80, and 3.44 eV, respectively, exhibit high potentials for making channel materials in FETs, candidate materials in photocatalysis, and buffer layers in solar cells, respectively.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100704"},"PeriodicalIF":5.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites","authors":"Francesco Maddalena ,&nbsp;Michal Makowski ,&nbsp;Chengyuan Xiao ,&nbsp;Md Abdul Kuddus Sheikh ,&nbsp;Dominik Kowal ,&nbsp;Marcin E. Witkowski ,&nbsp;Konrad J. Drozdowski ,&nbsp;Somnath Mahato ,&nbsp;Christophe Dujardin ,&nbsp;Roberto Calà ,&nbsp;Etiennette Auffray ,&nbsp;Muhammad Haris Mahyuddin ,&nbsp;Winicjusz Drozdowski ,&nbsp;Muhammad Danang Birowosuto ,&nbsp;Cuong Dang","doi":"10.1016/j.flatc.2024.100701","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100701","url":null,"abstract":"<div><p>Two-dimensional hybrid organic–inorganic perovskite (2D-HOIP) crystals, in particular lead-bromide perovskites, exhibit great promise as scintillators due to their superior environmental stability compared to their 3D counterparts, offering high light yields and rapid decay times. These cost-effective, solution-processable materials demonstrate potential for efficient wide-energy radiation detection. In this paper we focus on investigating the effect of partial substitution of n-butylammonium (BA) cation with <em>tert</em>-butylammonium (t-Bu) cation within the butylammonium lead bromide (<span><math><mrow><msub><mrow><mi>BA</mi></mrow><mrow><mn>2</mn><mo>-</mo><mi>x</mi></mrow></msub><msub><mrow><mi>tBu</mi></mrow><mrow><mi>x</mi></mrow></msub><msub><mrow><mi>PbBr</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>) structure and its impact on luminescence and scintillation properties. We observe that inclusion up to 5 % of t-Bu (x = 0.1) within the structure leads to a narrowing of the bandgap, leading also to an improvement of the light yield by 10 % and lowering of the energy resolution, compared to pristine <span><math><mrow><msub><mrow><mi>BA</mi></mrow><mrow><mn>2</mn></mrow></msub><msub><mrow><mi>PbBr</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>. The bandgap widens, compared to pristine <span><math><mrow><msub><mrow><mi>BA</mi></mrow><mrow><mn>2</mn></mrow></msub><msub><mrow><mi>PbBr</mi></mrow><mrow><mn>4</mn></mrow></msub></mrow></math></span>, with higher concentrations above 5 %, resulting in effects for the scintillating properties of the 2D-HOIP at room temperature at t-Bu concentrations above 5 %, with reduced light yield and broadened energy resolution. Higher t-Bu concentration (x = 0.4) show very poor room temperature scintillation but increased efficiency at cryogenic temperatures below 50 K. The results shown in this paper demonstrate the fundamental limitation of organic cation mixing levels for scintillation efficiency enhancement.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100701"},"PeriodicalIF":5.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring magnetic space groups of Cr2N MXene and its connection to vibrational and electronic properties","authors":"M.C Barrero-Moreno ,&nbsp;A.M. Garay-Tapia","doi":"10.1016/j.flatc.2024.100703","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100703","url":null,"abstract":"<div><p>The vibrational, electronic, and magnetic properties of two-dimensional <span><math><mrow><msub><mrow><mi>Cr</mi></mrow><mrow><mn>2</mn></mrow></msub><mi>N</mi></mrow></math></span> MXene were investigated. Two crystal cells (hexagonal and monoclinic) were considered with their respective magnetic space groups. In the absence of experimental data to fine-tune the <span><math><mrow><msub><mrow><mi>U</mi></mrow><mrow><mi>eff</mi></mrow></msub></mrow></math></span> (Hubbard correction), we utilized cell parameters and magnetic moment as a reference window, derived from meta-GGA calculations performed with the SCAN functional. A value of <span><math><mrow><msub><mrow><mi>U</mi></mrow><mrow><mi>eff</mi></mrow></msub></mrow></math></span> (1.25 eV) was determined, which does not overestimate the lattice parameters and magnetic moment values. Phonon scattering was calculated, and the vibrational modes were indexed. According to the density of states, the observed splitting in the <span><math><mrow><msub><mrow><mi>e</mi></mrow><mrow><mi>g</mi></mrow></msub></mrow></math></span> and <span><math><mrow><msub><mrow><mi>t</mi></mrow><mrow><mn>2</mn><mi>g</mi></mrow></msub></mrow></math></span> orbitals, and the crystal field analysis, we deduce that chromium in the MXene <span><math><mrow><msub><mrow><mi>Cr</mi></mrow><mrow><mn>2</mn></mrow></msub><mi>N</mi></mrow></math></span> predominantly adopts an octahedral coordination environment, a combination of octahedral and tetrahedral coordination results in the splitting of the <em>d</em> orbitals. Finally, using Monte Carlo simulation, the critical temperature (<span><math><mrow><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub></mrow></math></span>) for each space group with different functionals was obtained.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100703"},"PeriodicalIF":5.9,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forming more and sharper sensing protrusions on graphene-based electrodes through annealing","authors":"Yijing Y. Stehle ,&nbsp;Hayden Qualls ,&nbsp;Rebecca Cortez ,&nbsp;Sang Duang ,&nbsp;Ivan Vlassiouk","doi":"10.1016/j.flatc.2024.100707","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100707","url":null,"abstract":"<div><p>A better understanding of the microstructure, physicochemical properties, and sensing behavior of an electrode is critical in developing quick, high sensitivity, and robust electrochemical sensors. In this study, a single electrode was fabricated with self-prepared graphene ink through a drop-cast process followed with a subsequent annealing treatment. The graphene ink-based electrodes were characterized through AFM, contact angle, FTIR, impedance spectra, Raman, and SEM to understand annealing treatment effects. The dynamic response of the electrode to humidity, and vapors of ethanol, propanol, or acetone was measured using a four-point probe station in a closed chamber. The annealing treatment increased the conductivity of the electrode and improved its sensing performance by forming more and sharper protrusions on the electrode surface. These unique surface protrusions suggest that the annealed graphene ink-based electrodes hold great potential in developing high-performance electrochemical sensors.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100707"},"PeriodicalIF":5.9,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141482437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing electrocatalytic hydrogen evolution performance through homogeneous deposition of 2H-Phase MoSe2 on Ti3C2Tx","authors":"Peihan Wang ,&nbsp;Qing Zhang ,&nbsp;Aiqing Fan ,&nbsp;Lin Li ,&nbsp;Dechao Geng ,&nbsp;Wenping Hu","doi":"10.1016/j.flatc.2024.100705","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100705","url":null,"abstract":"<div><p>The interplay between catalytic agents and substrates in composite materials is crucial in the hydrogen evolution reaction (HER). However, maximizing the utilization of support carrier architectures and ensuring the uniform nucleation and growth of active nanocrystals are imperative for the enhancement of HER capabilities in composite nanomaterials. Herein, we demonstrate a homogeneous synthesis of oxygen-modified 2H-phase molybdenum diselenide nanocrystals on titanium carbide (denoted as MoSe₂/O@Ti₃C₂T_x) to achieve an enhanced HER performance. The improved performance is ascribed to the organ-like structure of Ti₃C₂T_x, which offers numerous sites for anchoring MoSe₂ nanocrystals, hence preventing their excessive aggregation and achieve uniform growth. Ultrathin MoSe₂ crystals and Ti₃C₂T_x interact to reduce the energy barrier for water molecule dissociation, thus improving the catalytic performance for HER. The MoSe₂/O@Ti₃C₂T_x catalyst exhibits outstanding HER performance under acidic conditions, achieving a Tafel slope of 82 mV dec^-1 and a low overpotential of 121 mV at a current density of 10 mA cm⁻², comparable to the best reported MoSe₂-based nanocomposite catalysts. Durability assessments indicate sustained performance for a minimum duration of 10 h at a current density of 10 mA cm⁻². This work lays the groundwork for the development of next-generation high-performance nanocomposite hydrogen evolution catalysts.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100705"},"PeriodicalIF":5.9,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141486992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption behavior of Rh-VSe2 monolayer upon dissolved gases in transformer oil and the effect of applied electric field","authors":"Jie Gao ,&nbsp;Fangjie Chen ,&nbsp;Chaowen Xue ,&nbsp;Chencheng Hu ,&nbsp;Long Lin","doi":"10.1016/j.flatc.2024.100706","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100706","url":null,"abstract":"<div><p>Dissolved gas analysis (DGA) in transformer oil is an effective method to monitor the operating status of transformers. Based on fundamental principles, the adsorption behavior of decomposed gases from transformer oil (CO, CH₄, C₂H₂, C₂H₄, and C₂H₆) on intrinsic and Rh-doped VSe₂ monolayers is examined. The adsorption structure, adsorption energy, charge transfer, density of state, electron density difference, work function, and desorption properties are discussed to evaluate the potential applications of VSe₂ monolayers as scavengers and gas-sensing materials for transformer oil decomposed gases. The results show that Rh dopant can be stably adsorbed on the surface of VSe₂ monolayer, and the minimum binding energy is −4.957 eV. The adsorption behavior of oil-dissolved gases on the intrinsic VSe₂ monolayer is weak. The sensing performance of VSe₂ monolayer for oil-dissolved gas molecules is significantly enhanced after the introduction of Rh dopant. The sensing performance of Rh-VSe₂ monolayer for CO, C₂H₂, C₂H₄ and C₂H₆ gases is stronger than that of CH₄. Furthermore, in order to improve the applicability of the Rh doped VSe₂ monolayer for the detection of oil-dissolved gases molecules. The effect of electric field on the sensing properties of gas molecules on Rh doped VSe₂ monolayers is also investigated. Finally, the desorption performance of the system is evaluated based on the transition state theory and Van’t-Hoff-Arrhenius expression. The findings of the study not only disclose the method by which the Rh doped VSe₂ monolayer detects the breakdown gasses in transformer oil, but they also offer theoretical recommendations for the advancement of VSe2-based sensors and scavengers.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100706"},"PeriodicalIF":5.9,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum phase structural stability and switching in twist-graphenes","authors":"Iu.A. Melchakova ,&nbsp;G.T. Oyeniyi ,&nbsp;D.R. Engelgardt ,&nbsp;S.P. Polyutov ,&nbsp;P.V. Avramov","doi":"10.1016/j.flatc.2024.100702","DOIUrl":"https://doi.org/10.1016/j.flatc.2024.100702","url":null,"abstract":"<div><p>This study examines the electronic structure and potential energy surfaces of migration paths in various types of bilayer graphene. Using periodic boundary conditions, density functional theory (DFT), and the generalized gradient approximation (GGA) exchange–correlation functional, along with the nudged elastic band (NEB) method, to investigate the structural stability and dynamic equilibrium of twisted bilayer graphenes (TBGs) with twist angles of 13.2° and 21.8°. The results suggest that twist angles significantly impact atomic and electronic properties, including moiré patterns, superlattice periods, and interfragment distances, which in turn influence bilayer graphene strongly correlated electronic quantum states. This research elucidates the fundamental mechanisms of superlubricity and mutual migration pathways of graphene fragments in TBGs. The low migration barriers observed could facilitate transitions between different energy-related phases, which are determined by the lattice moiré patterns and the localization character of the electronic states, resulting in superlubricity. External mechanical factors may affect the quantum properties of TBGs, indicating potential applications in quantum computing and quantum sensing.</p></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100702"},"PeriodicalIF":5.9,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}