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Hydrogen binding on the B36 borophene nanoflake decorated with first row transition metal atoms: DFT, QTAIM and AIMD study
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100799
Kristína Tančárová , Iuliia V. Voroshylova , Lukas Bucinsky , Michal Malček
{"title":"Hydrogen binding on the B36 borophene nanoflake decorated with first row transition metal atoms: DFT, QTAIM and AIMD study","authors":"Kristína Tančárová ,&nbsp;Iuliia V. Voroshylova ,&nbsp;Lukas Bucinsky ,&nbsp;Michal Malček","doi":"10.1016/j.flatc.2024.100799","DOIUrl":"10.1016/j.flatc.2024.100799","url":null,"abstract":"<div><div>Borophene, a monolayer of boron atoms, belongs to intensively studied two-dimensional “beyond-graphene” materials. The B<sub>36</sub> borophene nanoflake is a finite size model system, containing a hexagonal vacancy similar to the ones present in β<sub>12</sub> and χ<sub>3</sub> borophene sheets. The hydrogen binding performance of B<sub>36</sub> decorated with various transition metal atoms is investigated using density functional theory and quantum theory of atoms in molecules. Hydrogen is considered to become one of the crucial energy sources in future, hence, a search for effective hydrogen storage materials is of urge importance. Obtained results suggest that B<sub>36</sub> decorated with Co, Ni, Fe, and Cu possess strong affinity to bind the H<sub>2</sub> molecule via formation of <em>η</em><sup>2</sup>-dihydrogen bonds. Among them, the strongest H<sub>2</sub> binding is found for Co- and Ni-decorated B<sub>36</sub>. Furthermore, B<sub>36</sub> decorated with Sc and Ti behave like H–H bond breakers while B<sub>36</sub> decorated with Zn possess only negligible affinity to bind H<sub>2</sub> molecule. The stability of the B<sub>36</sub> decorated with Co and Ni is verified by ab initio molecular dynamics. The presented data may also serve as a basis for reference in future large-scale computational studies of borophene-based materials.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100799"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182865","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}
引用次数: 0
Enhanced macroscopic polarization in bismuth titanate nanosheets for efficient piezo-photocatalytic degradation of pollutants by Nd doping 通过掺杂钕增强钛酸铋纳米片的宏观极化,实现污染物的高效压电光催化降解
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100803
Qinrou Li , Sihai Sun , Yi Zeng , Xianxi Luo, Shiwei Liu, Jinhua Zhang, Zhiwu Chen
{"title":"Enhanced macroscopic polarization in bismuth titanate nanosheets for efficient piezo-photocatalytic degradation of pollutants by Nd doping","authors":"Qinrou Li ,&nbsp;Sihai Sun ,&nbsp;Yi Zeng ,&nbsp;Xianxi Luo,&nbsp;Shiwei Liu,&nbsp;Jinhua Zhang,&nbsp;Zhiwu Chen","doi":"10.1016/j.flatc.2024.100803","DOIUrl":"10.1016/j.flatc.2024.100803","url":null,"abstract":"<div><div>Recently, piezo-photocatalysis has attracted great scientific interest, in which a piezoelectric field promotes the separation of photogenerated electron-hole pairs, thereby significantly enhancing the photocatalytic efficiency of the material. In this study, Bi<sub>4-</sub><em><sub>x</sub></em>Nd<em><sub>x</sub></em>Ti<sub>3</sub>O<sub>12</sub> (<em>x</em> = 0, 0.5, 0.75, 1.0, <em>x</em>Nd-BTO) nanosheets were fabricated through a hydrothermal technique and employed as piezo-photocatalysts to degrade Rhodamine B (RhB) and diclofenac sodium (DS). Across all samples, 0.75Nd-BTO exhibited the highest piezo-photocatalytic efficiency, achieving complete RhB degradation in just 25 min, with an apparent rate constant of 0.2151 min<sup>−1</sup>. This activity was approximately 9.31 times greater than that of pristine BTO, surpassing the performance of most piezo-photocatalysts reported. The appropriate amount of Nd doping increases the specific surface area, optimizes energy band structure, as well as promotes the coupling of piezoelectric and photocatalytic effects, which contribute to the excellent piezo-photocatalytic activity of 0.75Nd-BTO. In this work, it is shown that doping with appropriate amounts of Nd<sup>3+</sup> can significantly improve the piezo-photocatalytic performance of piezoelectrics, which provides a feasible way to design efficient piezo-photocatalysts in the future.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100803"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182943","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}
引用次数: 0
Rapid self-reconstruction of nickel in amorphous nickel borate nanosheets for efficient oxygen evolution in alkaline seawater splitting
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100804
Thangavel Sakthivel , Abiyazhini Rajendran
{"title":"Rapid self-reconstruction of nickel in amorphous nickel borate nanosheets for efficient oxygen evolution in alkaline seawater splitting","authors":"Thangavel Sakthivel ,&nbsp;Abiyazhini Rajendran","doi":"10.1016/j.flatc.2024.100804","DOIUrl":"10.1016/j.flatc.2024.100804","url":null,"abstract":"<div><div>Enhancing the transformation of true (Ni<sup>2+</sup> to Ni<sup>3+</sup>) active site in amorphous nickel borate (NiB) is the paramount importance in alkaline water/ seawater splitting. In this study, we strengthen the oxygen evolution reaction (OER) performance of amorphous NiB nanosheets by adding Fe. The incorporated Fe enriches conductivity which facilitating formation of real active site in the NiFeB. This unique nanosheet structure of NiFeB features more active sites and large open surface area that permit the better electrolyte diffusion. The optimized electrocatalyst demonstrates impressive OER activity with an ultra-low overpotential of 180 mV (50 mA cm<sup>−2</sup>), a small Tafel slope (63 mV dec<sup>−1</sup>) also exhibits exceptional durability over 24 h in alkaline water. Similarly, in alkaline seawater, the catalyst displays a low over potential of 185 mV to reach 50 mA cm<sup>−2</sup>, a small Tafel slope 46 mV dec<sup>−1</sup> and excellent durability over 24 h. For the hydrogen evolution reaction in alkaline water, the amorphous NiFe0.5B nanosheet shows low overpotential as 290 mV at 10 mA cm<sup>−2</sup>, a small Tafel slope 195 mV dec<sup>−1</sup>. In overall alkaline seawater splitting, the catalyst delivers 50 mA cm<sup>−2</sup> at the lowest cell voltage of 1.63 V with exceptional stability. This work provides valuable insights into the cost-effective design of amorphous transition metal borate OER catalyst for seawater splitting.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100804"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143183021","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}
引用次数: 0
Graphene-enhanced polymer composites: A state-of-the-art perspective on applications
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100797
Saurav Kumar Maity , Uplabdhi Tyagi , Ritesh Kumar , Krishna Kumar , Nikita Sheoran , Shagun Singh , Gulshan Kumar
{"title":"Graphene-enhanced polymer composites: A state-of-the-art perspective on applications","authors":"Saurav Kumar Maity ,&nbsp;Uplabdhi Tyagi ,&nbsp;Ritesh Kumar ,&nbsp;Krishna Kumar ,&nbsp;Nikita Sheoran ,&nbsp;Shagun Singh ,&nbsp;Gulshan Kumar","doi":"10.1016/j.flatc.2024.100797","DOIUrl":"10.1016/j.flatc.2024.100797","url":null,"abstract":"<div><div>Graphene-reinforced polymer composites (GRPCs) have evolved into a cutting-edge class of materials with remarkable physicochemical and thermomechanical properties. These composites offer a viable alternative to traditional materials with multifaceted applications. While existing studies have focused on specific polymer matrices and applications, there remains a lack of comprehensive analysis that integrates recent advancements in both thermosetting and thermoplastic polymers with an emphasis on their multifunctional properties. Therefore, the present review extensively focused on the state-of-the-art in the fabrication of GRPCs covering a wide range of thermosetting and thermoplastic polymer matrices. Several functionalization methods of graphene including covalent and non-covalent approaches were explored to enhance its compatibility and dispersion within the polymer matrices for enhanced properties. Recent advances in fabrication strategies which are crucial for enhancing interfacial bonding and preserving the intrinsic properties of graphene for optimizing the overall performance of the composite, are thoroughly discussed. Furthermore, several applications have been comprehensively explored in various sectors which lies due to the superior performance, higher sensitivity, and enhanced durability. In addition, this review critically discusses the environmental impact and sustainability related to GRPCs along with their challenges in the development and potential to revolutionize material design. This review offers a thorough overview of the latest advancements in GRPCs, bridging existing knowledge gaps and serving as a valuable asset for driving innovation across industries and promoting the growth of human civilization.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100797"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182936","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}
引用次数: 0
Visible light-driven degradation of Brilliant Green and Indigo Carmine organic contaminants using SnS2/GCN/rGO and CuS/GCN/rGO ternary composites – A comparative study
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100805
Sarvesha Chandra Shyagathur , Jayadev Pattar , Mahendra K , Anil Halaudara Nagaraja Rao , Sreekanth R , Ganganagappa Nagaraju
{"title":"Visible light-driven degradation of Brilliant Green and Indigo Carmine organic contaminants using SnS2/GCN/rGO and CuS/GCN/rGO ternary composites – A comparative study","authors":"Sarvesha Chandra Shyagathur ,&nbsp;Jayadev Pattar ,&nbsp;Mahendra K ,&nbsp;Anil Halaudara Nagaraja Rao ,&nbsp;Sreekanth R ,&nbsp;Ganganagappa Nagaraju","doi":"10.1016/j.flatc.2024.100805","DOIUrl":"10.1016/j.flatc.2024.100805","url":null,"abstract":"<div><div>This study introduces novel SnS<sub>2</sub>/GCN/rGO and CuS/GCN/rGO ternary composites for the visible-light-driven degradation of organic contaminants, specifically targeting the dyes Brilliant Green (BG) and Indigo Carmine (IC). X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM-EDS), UV–visible, Photoluminescence (PL), and impedance spectroscopy were used to characterize the synthesized samples to extract the characteristic features of the catalysts. The chemical compositions of synthesized samples were confirmed using X-ray photoelectron spectroscopy (XPS). The ternary composite SnS<sub>2</sub>/GCN/rGO revealed the degradation of BG by 98.0 % and IC by 80.9 %. CuS/GCN/rGO composite has shown degradation efficiencies of 92.7 % for BG and 78.5 % for IC. Unlike previous approaches, this work provides a comparative analysis of SnS<sub>2</sub> and CuS-based ternary systems, emphasizing their distinct photocatalytic mechanisms Z-scheme in SnS<sub>2</sub>/GCN/rGO and direct electron transfer in CuS/GCN/rGO. By integrating GCN and rGO, this study addresses the typical limitations of metal sulfides, such as rapid charge recombination, enhanced electron mobility, and overall degradation efficiency under visible light. The confirmation of degradation species is made using chemical oxygen demand (COD) measurements. These results were supported by the reduction in the photoluminescence intensity and lower charge transfer resistance by impedance spectra suggesting an enhanced degradation rate for the ternary composites.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100805"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182864","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}
引用次数: 0
Highly efficient overall photocatalytic water splitting in 2D heterostructure GaSe/ScGaSe3
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100798
Chao He , Du He , Qinghua Lv , Bei Peng , Hao Wang , Pan Zhang , Jun-Hui Yuan , Jiafu Wang , Hui Lv
{"title":"Highly efficient overall photocatalytic water splitting in 2D heterostructure GaSe/ScGaSe3","authors":"Chao He ,&nbsp;Du He ,&nbsp;Qinghua Lv ,&nbsp;Bei Peng ,&nbsp;Hao Wang ,&nbsp;Pan Zhang ,&nbsp;Jun-Hui Yuan ,&nbsp;Jiafu Wang ,&nbsp;Hui Lv","doi":"10.1016/j.flatc.2024.100798","DOIUrl":"10.1016/j.flatc.2024.100798","url":null,"abstract":"<div><div>In the field of photocatalytic water splitting, the efficient utilization of solar energy is paramount. However, until now, the infrared and ultraviolet portions of the solar spectrum, which collectively constitute nearly half of the total solar energy, have remained underutilized, resulting in significant losses in solar energy utilization efficiency. Herein, we meticulously design a type-II band-aligned GaSe/ScGaSe<sub>3</sub> heterostructure and meticulously examine its photocatalytic capabilities through rigorous first-principles calculations. The calculation results reveal the valence band and conduction band are distributed on two opposite surfaces with a large electrostatic potential difference produced by the intrinsic dipole of the photocatalyst. This surface potential difference, acting as an auxiliary booster for photoexcited electrons, This enables the GaSe/ScGaSe<sub>3</sub> heterostructure to exhibit a minimal indirect band gap of 0.44 eV, ensuring effective photocatalytic water splitting reactions at all pH values under the action of the inherent electric field. Furthermore, the heterostructure possesses unique optical properties, demonstrating a high light absorption coefficient. It captures an impressive 10 % to 43 % of visible and ultraviolet light, significantly enhancing the utilization efficiency of sunlight. Encouragingly, our analysis shows that the corrected solar-to-hydrogen (STH) efficiency of this heterostructure is 33.77 %, marking a tremendous leap of 346 % compared to standalone GaSe monolayers. Additionally, the application of biaxial tensile strain further boosts this efficiency to an astonishing 36.46 %. These remarkable characteristics not only emphasize the immense potential and broad application prospects of the GaSe/ScGaSe<sub>3</sub> heterostructure but also underscore its significance in advancing the field of photocatalytic water splitting.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100798"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182940","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}
引用次数: 0
Boron phosphide (BP) graphenylene as work function-type sensor for glucose detection: First-principles investigations 磷化硼 (BP) 石墨苯作为功函数型传感器用于葡萄糖检测:第一原理研究
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2025.100810
Yusuf Zuntu Abdullahi , Sohail Ahmad , José A.S. Laranjeira , Nicolas F. Martins
{"title":"Boron phosphide (BP) graphenylene as work function-type sensor for glucose detection: First-principles investigations","authors":"Yusuf Zuntu Abdullahi ,&nbsp;Sohail Ahmad ,&nbsp;José A.S. Laranjeira ,&nbsp;Nicolas F. Martins","doi":"10.1016/j.flatc.2025.100810","DOIUrl":"10.1016/j.flatc.2025.100810","url":null,"abstract":"<div><div>Diabetes is a chronic metabolic disorder characterized by elevated blood sugar levels, leading to severe health complications. Non-invasive glucose monitoring is essential for effective diabetes management, and porous materials are promising candidates for this purpose due to their high surface-to-volume ratio and the availability of active sites for adsorption. In this study, we explore the potential of g-BP (graphenylene-like boron phosphide) as a non-enzymatic glucose sensor. Adsorption energies (E<span><math><msub><mrow></mrow><mrow><mi>a</mi><mi>d</mi><mi>s</mi></mrow></msub></math></span>) for glucose, fructose, and xylose on gaseous (aqueous) media were calculated as −0.74 eV (−1.13 eV), −0.66 eV (−1.04 eV), and −0.58 eV (−1.07 eV), respectively, with the sugar molecules chemisorbed on the g-BP surface. The variations on E<span><math><msub><mrow></mrow><mrow><mi>a</mi><mi>d</mi><mi>s</mi></mrow></msub></math></span> when water molecules are present are due to hydrogen bonding interactions between H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>O and the sugars. Recovery time results indicate that the g-BP monolayer can be utilized as a reusable sensor for these sugar molecules with high selectivity. A band gap opening of approximately 0.67 eV is observed under the adsorption of all sugar molecules. Notably, the work function (<span><math><mi>ϕ</mi></math></span>) of g-BP changes significantly upon glucose adsorption for both gaseous and aqueous environments, making it highly sensitive for glucose detection. These findings suggest that g-BP is a promising material for non-invasive work function glucose sensors, as well as for diabetes management.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100810"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182941","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}
引用次数: 0
Graphene oxide functionalized halloysite nanotubes for voltammetric determination of psychoactive drug from alcoholic and non-alcoholic drinks 氧化石墨烯功能化哈洛石纳米管用于伏安法测定酒精和非酒精饮料中的精神活性药物
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2024.100794
Gurpreet Kaur , Garima , Varnika Prakash , Swati Gupta , Manoj Kumar Chaudhary , S.K. Mehta , Shweta Sharma
{"title":"Graphene oxide functionalized halloysite nanotubes for voltammetric determination of psychoactive drug from alcoholic and non-alcoholic drinks","authors":"Gurpreet Kaur ,&nbsp;Garima ,&nbsp;Varnika Prakash ,&nbsp;Swati Gupta ,&nbsp;Manoj Kumar Chaudhary ,&nbsp;S.K. Mehta ,&nbsp;Shweta Sharma","doi":"10.1016/j.flatc.2024.100794","DOIUrl":"10.1016/j.flatc.2024.100794","url":null,"abstract":"<div><div>In context to the widespread misuse of benzodiazepines, a novel platform based on the graphene oxide functionalized halloysite nanotubes (HNT/GO) has been introduced for the electrochemical detection of commonly abused date rape drug-nitrazepam (NZP). In this work, HNT/GO composite has been synthesized <em>via</em> simple stirring method and the fabricated materials were characterized by using combination of spectroscopic, microscopic, X-ray and voltammetric techniques i.e., FTIR, FE-SEM-EDX, TEM, XRD, XPS and Cyclic voltammetry. Surface modification of HNTs with GO increased the synergistic properties of both the materials for electrochemical sensing of nitrazepam. Specifically, HNTs provided high surface area, nanotubular morphology with unique surface functionalities and GO added electron rich functional sites. Combination of HNTs with GO significantly increased electrochemical active surface area from 0.06 to 0.236 cm<sup>2</sup> which increased electron transfer on the surface of electrode towards electrochemical reduction of nitrazepam. The developed sensor showed excellent electrochemical response for nitrazepam detection with a linear dynamic range of 0.16–150 μM and limit of detection 0.79 μM. The proposed sensor has successfully been employed for electrochemical determination of nitrazepam in non-alcoholic and alcoholic drinks without any sample pre-treatment.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100794"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182938","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}
引用次数: 0
Heteroatom-doped graphene: From fabrication to supercapacitor and batteries energy storage applications 掺杂杂原子的石墨烯:从制造到超级电容器和电池储能应用
IF 5.9 3区 材料科学
FlatChem Pub Date : 2025-01-01 DOI: 10.1016/j.flatc.2025.100807
Oladipo Folorunso , Rotimi Sadiku , Yskandar Hamam , Williams Kupolati
{"title":"Heteroatom-doped graphene: From fabrication to supercapacitor and batteries energy storage applications","authors":"Oladipo Folorunso ,&nbsp;Rotimi Sadiku ,&nbsp;Yskandar Hamam ,&nbsp;Williams Kupolati","doi":"10.1016/j.flatc.2025.100807","DOIUrl":"10.1016/j.flatc.2025.100807","url":null,"abstract":"<div><div>Graphene, despite its exceptional properties, requires certain surface and structural modifications to enhance its performance in energy storage applications. The introduction of dopants can create charge carriers that can improve electrical conductivity and the overall properties of graphene. However, careful control over dopant concentration is crucial since excessive doping can lead to the formation of defects that can hinder electron mobility. This review discussed the functionalization of graphene, dopant selection criteria, heteroatom-doped graphene preparation techniques, and the energy storage applications of the doped graphene system. Dopant selection is very important as it determines the applications of the doped graphene. Various synthesis methods, including chemical vapor deposition (CVD), solvothermal, hydrothermal, ball milling, electrochemical synthesis, thermal annealing, plasma synthesis, and arc discharge, have been explored for the fabrication of heteroatom-doped graphene. Each technique presents its distinct advantages and challenges, thereby influencing the materials scalability, cost, and properties. For instance, solvothermal and hydrothermal methods can produce scalable and cost-effective materials, while ball-milling and the electrochemical synthesis routes offer simplicity and low operational costs. The CVD technique, while advantageous, faces challenges in large-scale production, due to some complex mechanisms. Plasma synthesis provides tunability and environmental benefits but suffers from high-temperature issues. The thermal annealing and the arc discharge methods offer efficient production, but they require thorough optimization of temperature and current, respectively. Therefore, this review provides concise evidence and a thorough examination of the production of heteroatom-doped graphene for supercapacitor and lithium-ion batteries energy storage applications. Hydrothermal and solvothermal synthesis methods have shown high possibilities in the production of sustainable heteroatom-doped graphene for energy storage applications. The review further confirms the possibility for the use of heteroatom-doped graphene, with its fast electrolyte ion diffusion, compact porosity, high capacitance, and long cycle life, in the production of commercial supercapacitor, lithium-ion and sodium-ion batteries electrodes.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100807"},"PeriodicalIF":5.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182937","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}
引用次数: 0
Insight on electronic and thermal behaviors of conductive MXene-based composite material and their electromagnetic shielding Applications: A Review 导电mxene基复合材料的电子和热行为及其电磁屏蔽应用综述
IF 5.9 3区 材料科学
FlatChem Pub Date : 2024-11-26 DOI: 10.1016/j.flatc.2024.100782
Ranlu Miao , Qixun Xia , Libo Wang , Qianku Hu , Nanasaheb M. Shinde , Aiguo Zhou
{"title":"Insight on electronic and thermal behaviors of conductive MXene-based composite material and their electromagnetic shielding Applications: A Review","authors":"Ranlu Miao ,&nbsp;Qixun Xia ,&nbsp;Libo Wang ,&nbsp;Qianku Hu ,&nbsp;Nanasaheb M. Shinde ,&nbsp;Aiguo Zhou","doi":"10.1016/j.flatc.2024.100782","DOIUrl":"10.1016/j.flatc.2024.100782","url":null,"abstract":"<div><div>MXenes, a family of two-dimensional materials, have garnered significant attention due to their excellent electrical conductivity, large specific surface area, and simple processing methods. Their discovery has expanded applications in fields such as medical treatment and energy storage. Notably, MXenes are highly effective in electromagnetic interference (EMI) shielding, capable of reflecting and absorbing electromagnetic waves due to their layered structure. This property allows for the efficient dissipation of electromagnetic radiation, making MXenes a strong candidate for EMI solutions. The production of MXenes relies heavily on various etching methods, which are crucial for tailoring their properties for specific applications. Furthermore, the development of MXene composites has enhanced their performance in EMI shielding and other uses. Overall, the ongoing research into MXenes and their composites highlights their potential to address the challenges posed by increasing electromagnetic radiation exposure in our daily lives.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"49 ","pages":"Article 100782"},"PeriodicalIF":5.9,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747303","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}
引用次数: 0
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