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Mamata, Kumar C, Tiwari V, Ţălu Ş, Awasthi K, Dutta A. Biofabrication of GO-Ag nanocomposite using Cucumis callosus (kachri) fruits: Enhanced antibacterial properties and green synthesis approach. Microsc Res Tech 2024. [PMID: 39318246 DOI: 10.1002/jemt.24689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 08/03/2024] [Accepted: 08/18/2024] [Indexed: 09/26/2024]
Abstract
This study presents a novel, environmentally sustainable method for the synthesis of graphene oxide (GO) sheets decorated uniformly with silver nanoparticles (Ag NPs) ranging in size from 4 to 34 nm. The reduction of AgNO3 is achieved using an extract derived from Cucumis callosus fruit, which serves as a dual-function stabilizing and reducing agent. Cucumis callosus, belonging to the Cucurbitaceae family and native to regions such as India, South America, Thailand, Africa, and Egypt, is recognized for its substantial nutritional and medicinal value, encompassing antioxidant, antidiabetic, anticancer, and anti-inflammatory properties. In this study, we explore the utilization of Cucumis callosus extract for the first time in synthesizing Ag NPs, employing a green synthesis approach to produce GO-Ag nanocomposites. Comprehensive characterization techniques confirm the structural integrity and quality of the synthesized nanocomposites. The antibacterial efficacy of the green-synthesized Ag-decorated GO nanocomposites was evaluated using the disk diffusion method against Bacillus subtilis (Gram-positive) and Escherichia coli (Gram-negative) bacteria at varying dosages. The nanocomposites demonstrated dose-dependent antibacterial activity against both bacterial strains, with a notably heightened effect observed against Gram-negative bacteria. These findings underscore the potential of Cucumis callosus as a promising candidate for the sustainable preparation of GO-Ag nanocomposites with enhanced antibacterial properties, suitable for various biomedical and environmental applications. RESEARCH HIGHLIGHTS: This work presents a simple, environmentally free, and cost-effective green synthesis method to decorate uniformly small (4-34 nm) spherical Ag NPs on the GO sheets. Ag NPs were produced by reducing AgNO3 using Cucumis callosus fruit extract as a stabilizing and reducing agent. The nanocomposites show dosage-dependent antibacterial activities against both Gram-positive and Gram-negative bacteria, but the antibacterial effect is higher against the Gram-negative bacteria. Synthesis of these nanocomposites via the green route using an herbal plant/fruit like Cucumis callosus will benefit the medical industry.
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Affiliation(s)
- Mamata
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Chandra Kumar
- Escuela de Ingeniería, Facultad de Ciencias, Ingeniería y Tecnología, Universidad Mayor, Santiago, Chile
| | - Vishvanath Tiwari
- Department of Biochemistry, Central University of Rajasthan, Ajmer, India
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Cluj-Napoca, Romania
| | - Kamlendra Awasthi
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur, India
| | - Anirban Dutta
- Department of Physics, Malaviya National Institute of Technology Jaipur, Jaipur, India
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2
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Di F, Gu X, Chu Y, Li L, Geng X, Sun C, Zhou W, Zhang H, Zhao H, Tao L, Jiang G, Zhang X, An B. Enhanced stability and kinetic performance of sandwich Si anode constructed by carbon nanotube and silicon carbide for lithium-ion battery. J Colloid Interface Sci 2024; 670:204-214. [PMID: 38761573 DOI: 10.1016/j.jcis.2024.05.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
Owing to highly theoretical capacity of 3579 mAh/g for lithium-ion storage at ambient temperature, silicon (Si) becomes a promising anode material of high-performance lithium-ion batteries (LIBs). However, the large volume change (∼300 %) during lithiation/delithiation and low conductivity of Si are challenging the commercial developments of LIBs with Si anode. Herein, a sandwich structure anode that Si nanoparticles sandwiched between carbon nanotube (CNT) and silicon carbide (SiC) has been successfully constructed by acetylene chemical vapor deposition and magnesiothermic reduction reaction technology. The SiC acts as a stiff layer to inhibit the volumetric stress from Si and the inner graphited CNT plays as the matrix to cushion the volumetric stress and as the conductor to transfer electrons. Moreover, the combination of SiC and CNT can relax the surface stress of carbonaceous interface to synergistically prevent the integrated structure from the degradation to avoid the solid electrolyte interface (SEI) reorganization. In addition, the SiC (111) surface has a strong ability to adsorb fluoroethylene carbonate molecule to further stabilize the SEI. Consequently, the CNT/SiNPs/SiC anode can stably supply the capacity of 1127.2 mAh/g at 0.5 A/g with a 95.6 % capacity retention rate after 200 cycles and an excellent rate capability of 745.5 mAh/g at 4.0 A/g and 85.5 % capacity retention rate after 1000 cycles. The present study could give a guide to develop the functional Si anode through designing a multi-interface with heterostructures.
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Affiliation(s)
- Fang Di
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Xin Gu
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China; Liaoning Light Industry Institute Co., Ltd., 46 Taishan Road, Shenyang 110031, Liaoning, China
| | - Yang Chu
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Lixiang Li
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China.
| | - Xin Geng
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Chengguo Sun
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Weimin Zhou
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Han Zhang
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Hongwei Zhao
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Lin Tao
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Guangshen Jiang
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China
| | - Xueyuan Zhang
- Institute of Corrosion Science and Technology, 136 Kaiyuan Road, Guangzhou 510530, Guangdong, China
| | - Baigang An
- Key Laboratory of Energy Materials and Electrochemistry Liaoning Province, School of Chemical Engineering, University of Science and Technology Liaoning, 185 Qianshanzhong Road, Anshan 114051, Liaoning, China; Institute of Corrosion Science and Technology, 136 Kaiyuan Road, Guangzhou 510530, Guangdong, China.
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3
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Guo T, Zhou Y, Wang Z, Cunha J, Alves C, Ferreira P, Hou Z, Yin H. Indium Nitride Nanowires: Low Redox Potential Anodes for Lithium-Ion Batteries. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310166. [PMID: 38544352 PMCID: PMC11165543 DOI: 10.1002/advs.202310166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/31/2024] [Indexed: 06/12/2024]
Abstract
Advanced lithium-ion batteries (LIBs) are crucial to portable devices and electric vehicles. However, it is still challenging to further develop the current anodic materials such as graphite due to the intrinsic limited capacity and sluggish Li-ion diffusion. Indium nitride (InN), which is a new type of anodic material with low redox potential (<0.7 V vs Li/Li+) and narrow bandgap (0.69 eV), may serve as a new high-energy density anode material for LIBs. Here, the growth of 1D single crystalline InN nanowires is reported on Au-decorated carbon fibers (InN/Au-CFs) via chemical vapor deposition, possessing a high aspect ratio of 400. The binder-free Au-CFs with high conductivity can provide abundant sites and enhance binding force for the dense growth of InN nanowires, displaying shortened Li ion diffusion paths, high structural stability, and fast Li+ kinetics. The InN/Au-CFs can offer stable and high-rate Li delithiation/lithiation without Li deposition, and achieve a remarkable capacity of 632.5 mAh g-1 at 0.1 A g-1 after 450 cycles and 416 mAh g-1 at a high rate of 30 A g-1. The InN nanowires as battery anodes shall hold substantial promise for fulfilling superior long-term cycling performance and high-rate capability for advanced LIBs.
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Affiliation(s)
- Tianqi Guo
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
| | - Yurong Zhou
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
| | - Zhongchang Wang
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
- School of ChemistryBeihang UniversityBeijing100191China
| | - Joao Cunha
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
| | - Cristiana Alves
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
| | - Paulo Ferreira
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
- Mechanical Engineering Department and IDMECInstituto Superior TécnicoUniversity of LisbonLisbon1049‐001Portugal
- Materials Science and Engineering ProgramUniversity of Texas at AustinAustinTX78712USA
| | - Zhaohui Hou
- School of ChemistryBeihang UniversityBeijing100191China
| | - Hong Yin
- International Iberian Nanotechnology Laboratory (INL)Braga4715‐330Portugal
- Key Laboratory of Hunan Province for Advanced Carbon‐based Functional MaterialsSchool of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang414006China
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4
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Sun Y, Tao L, Wu M, Dastan D, Rehman J, Li L, An B. Multi-atomic loaded C 2N 1 catalysts for CO 2 reduction to CO or formic acid. NANOSCALE 2024; 16:9791-9801. [PMID: 38700428 DOI: 10.1039/d4nr01082e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
In recent years, the development of highly active and selective electrocatalysts for the electrochemical reduction of CO2 to produce CO and formic acid has aroused great interest, and can reduce environmental pollution and greenhouse gas emissions. Due to the high utilization of atoms, atom-dispersed catalysts are widely used in CO2 reduction reactions (CO2RRs). Compared with single-atom catalysts (SACs), multi-atom catalysts have more flexible active sites, unique electronic structures and synergistic interatomic interactions, which have great potential in improving the catalytic performance. In this study, we established a single-layer nitrogen-graphene-supported transition metal catalyst (TM-C2N1) based on density functional theory, facilitating the reduction of CO2 to CO or HCOOH with single-atom and multi-atomic catalysts. For the first time, the TM-C2N1 monolayer was systematically screened for its catalytic activity with ab initio molecular dynamics, density of states, and charge density, confirming the stability of the TM-C2N1 catalyst structure. Furthermore, the Gibbs free energy and electronic structure analysis of 3TM-C2N1 revealed excellent catalytic performance for CO and HCOOH in the CO2RR with a lower limiting potential. Importantly, this work highlights the moderate adsorption energy of the intermediate on 3TM-C2N1. It is particularly noteworthy that 3Mo-C2N1 exhibited the best catalytic performance for CO, with a limiting potential (UL) of -0.62 V, while 3Ti-C2N1 showed the best performance for HCOOH, with a corresponding UL of -0.18 V. Additionally, 3TM-C2N1 significantly inhibited competitive hydrogen evolution reactions. We emphasize the crucial role of the d-band center in determining products, as well as the activity and selectivity of triple-atom catalysts in the CO2RR. This theoretical research not only advances our understanding of multi-atomic catalysts, but also offers new avenues for promoting sustainable CO2 conversion.
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Affiliation(s)
- Yimeng Sun
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
| | - Lin Tao
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
| | - Mingjie Wu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Davoud Dastan
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14850, USA
| | - Javed Rehman
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
| | - Lixiang Li
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
| | - Baigang An
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
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5
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Tian T, Zhou X, Yu J, Bai J, Chen L, He N, Li X, Zhang H, Cui H. First-Principles Predictions of MoS 2-WS 2 In-Plane Heterostructures for Sensing Dissolved Gas Species in Oil-Immersed Transformers. ACS OMEGA 2024; 9:20253-20262. [PMID: 38737029 PMCID: PMC11086640 DOI: 10.1021/acsomega.4c00681] [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: 01/21/2024] [Revised: 03/16/2024] [Accepted: 03/20/2024] [Indexed: 05/14/2024]
Abstract
This work from first-principles insight uses a MoS2-WS2 in-plane heterostructure as a potential sensing material for detection of CO and C2H2, two typical dissolved gases in oil-immersed transformers, in order to evaluate the operation status. The adsorption performance of the MoS2-WS2 heterostructure upon two gas species is assessed via three adsorption sites and compared with isolated MoS2 and WS2. Results indicate that MoS2-WS2 performs with a much stronger binding force and charge-transfer for adsorptions of CO and C2H2 in comparison to the isolated counterpart, which gives rise to more obvious deformation in the electronic property of MoS2-WS2 as well as a much larger resistance-based sensing response. The recovery time of MoS2-WS2 for desorption of CO and C2H2 molecules is also appropriate to allow the reusability of such a sensor. The findings in this work uncover the admirable sensing potential of transition metal dichalcogenides (TMDs)-based heterostructures upon oil dissolved gases, which opens up a new way to explore novel 2D nanomaterials as resistive gas sensors for dissolved gas analysis in electrical oil-immersed transformers.
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Affiliation(s)
- Tian Tian
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Xiu Zhou
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Jiaying Yu
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Jin Bai
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Lei Chen
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Ninghui He
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Xiuguang Li
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Heng Zhang
- Electric
Power Research Institute, State Grid Ningxia Electric Power Co., Ltd, Ningxia 750001, China
| | - Hao Cui
- Southwest
University, Chongqing 400715, China
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6
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Li H, Wang X, Ding Z, Gao W, Liu Y, Ma K, Hu Z, Wang Y. Crown Ether Copolymerized Polyimide Film: Enhanced Mechanical, Thermal Properties and Low Dielectric Constant under High Frequency. Polymers (Basel) 2024; 16:1188. [PMID: 38732657 PMCID: PMC11085621 DOI: 10.3390/polym16091188] [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: 02/29/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024] Open
Abstract
Polymer materials with a low dielectric constant and low dielectric loss have the potential to be applied to high-frequency signal transmissions, such as mobile phone antennas and millimeter wave radars. Two types of diamines, 4,4'-diamino-p-tetraphenyl (DPT) and crown ether diamine (CED), were prepared for ternary copolymerization with BPDA in this study. Cross-links with molecular chains were formed, increasing molecular chain distance by utilizing rings of CED. The MPI films exhibit a good thermal performance with the increase in CED addition, with Tg > 380 °C and CTE from -4 × 10-6 K-1 to 5 × 10-6 K-1. The Young's modulus can reach 8.6 GPa, and the tensile strength is above 200 MPa when 5% and 7% CED are introduced. These MPI films exhibit good mechanical performances. The dielectric constant of PI-10% film can go as low as 3.17. Meanwhile, the relationship between dielectric properties and molecular structure has been demonstrated by Molecular Simulation (MS). PI molecules are separated by low dielectric groups, resulting in a decrease in the dielectric constant.
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Affiliation(s)
- Heming Li
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Xinming Wang
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Ziyang Ding
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Weiguo Gao
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Yan Liu
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Ke Ma
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
| | - Zhizhi Hu
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China; (H.L.); (X.W.); (Z.D.); (W.G.); (Y.L.)
- Oxiranchem Holding Group Co., Ltd., Liaoyang 111003, China
| | - Yongqi Wang
- Liaoning Agricultural Technical College, Yingkou 115009, China
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7
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Li Y, Liu X, Guo Q. Adsorption Mechanisms of CO 2 on Macroporous Ion-Exchange Resin Organic Amine Composite Materials by the Density Functional Theory. ACS OMEGA 2024; 9:17541-17550. [PMID: 38645365 PMCID: PMC11025073 DOI: 10.1021/acsomega.4c00587] [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: 01/18/2024] [Revised: 03/04/2024] [Accepted: 03/28/2024] [Indexed: 04/23/2024]
Abstract
The adsorption mechanisms of CO2 on macroporous cation exchange resin (MCER), D001 ion-exchange resin, and macroporous ion-exchange resin organic amine composite materials (MCER-DEA and D001-PEI) were studied by density functional theory (DFT). The adsorption energies and Mulliken atomic charges in the adsorption process were analyzed, indicating that CO2 on MCER and D001 were physisorbed. The adsorption heat of the adsorption process of MCER-DEA and D001-PEI was calculated by the Monte Carlo method, and it was found that the adsorption process of CO2 by MCER-DEA and D001-PEI was both physical adsorption and chemical adsorption. Besides, the chemical adsorption mechanism of CO2 by MCER-DEA and D001-PEI was investigated by analyzing the free energy barrier and the Gibbs free energy change of the involved chemical reactions and the results showed that the free energy barrier required for MCER-DEA to generate zwitterion was 26.23 kcal/mol, which is 1.74 times that of D001-PEI (15.04 kcal/mol); meanwhile, the free energy barriers of the deprotonation process of zwitterions in MCER-DEA and D001-PEI were 16.23 and 9.89 kcal/mol, respectively, indicating that D001-PEI chemically adsorbs CO2 and requires more energy than MCER-DEA chemical adsorption of CO2. D001-PEI is more conducive to the chemical adsorption of CO2. In addition, H2O molecules were incorporated on the polymer models to study the influence of humidity on the CO2 adsorption mechanism. The analysis revealed that the adsorption of CO2 slowed under humid conditions.
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Affiliation(s)
- Yan Li
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xinmin Liu
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qingjie Guo
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Jansi R, Vinay B, Revathy MS, Sasikumar P, Marasamy L, Janani A, Haldhar R, Kim SC, Almarhoon ZM, Hossain MK. Synergistic Blends of Sodium Alginate and Pectin Biopolymer Hosts as Conducting Electrolytes for Electrochemical Applications. ACS OMEGA 2024; 9:13906-13916. [PMID: 38559920 PMCID: PMC10975598 DOI: 10.1021/acsomega.3c09106] [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: 11/15/2023] [Revised: 02/12/2024] [Accepted: 02/21/2024] [Indexed: 04/04/2024]
Abstract
The world needs sustainable energy resources with affordable, economic, and accountable sources. Consequently, energy innovation technologies are evolving toward electrochemical applications like batteries, supercapacitors, etc. The current study involves the solid blend biopolymer electrolyte (SBBE) with different compositions of sodium alginate blended with pectin via the casting technique. The characterization of the sample was tested by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, AC impedance, linear sweep voltammetry (LSV), and cyclic voltammetry (CV) analyses. Evidently, the sample NP4 (NaAlg/pectin = 60:40 wt %) has a higher conductivity of 1.26 × 10-7 and 3.25 × 10-6 S cm-1 at 303 and 353 K, respectively. The performances of the samples were analyzed with variations in temperature, frequency, and time responses to signify the blended nature of the electrolyte. Hence, the studied biopolymers can be constructed for electrochemical device applications.
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Affiliation(s)
- R. Jansi
- Department
of Physics, School of Advanced Sciences, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126, Tamil Nadu, India
- Multifunctional
Materials Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126, Tamil Nadu, India
| | - Boligarla Vinay
- Department
of Chemical Engineering, School of Bio, Chemical and Processing Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126 Tamil Nadu, India
| | - M. S. Revathy
- Department
of Physics, School of Advanced Sciences, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126, Tamil Nadu, India
| | - Ponnusamy Sasikumar
- Department
of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, India
| | - Latha Marasamy
- Facultad
de Química, Materiales-Energía, Universidad Autónoma de Querétaro, Santiago de Querétaro, Querétaro C.P.76010, Mexico
| | - Aruna Janani
- Department
of Chemical Engineering, School of Bio, Chemical and Processing Engineering, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126 Tamil Nadu, India
| | - Rajesh Haldhar
- School
of
Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Seong-Cheol Kim
- School
of
Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Zainab M. Almarhoon
- Department
of Chemistry, College of Science, King Saud
University, Riyadh 11451, Saudi Arabia
| | - M. Khalid Hossain
- Institute
of Electronics, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission, Dhaka 1349, Bangladesh
- Department
of Advanced Energy Engineering Science, Interdisciplinary Graduate
School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
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9
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Liu Y, Liu J, Wei Z, Yuan T, Cui H. Single Ni Atom-Dispersed WSe 2 Monolayer for Sensing Typical Fault Gases in Dry-Type Transformers: A First-Principles Study. ACS OMEGA 2023; 8:47067-47074. [PMID: 38107966 PMCID: PMC10719922 DOI: 10.1021/acsomega.3c06980] [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: 09/12/2023] [Revised: 10/08/2023] [Accepted: 11/03/2023] [Indexed: 12/19/2023]
Abstract
This work, using the first-principles theory, uses the Ni-decorated WSe2 (Ni-WSe2) monolayer as a novel gas sensing material upon CO and HCHO in the dry-type transformers in order to evaluate their operation status. Results indicate that the Ni atom can be stably adsorbed on the TW site of the pristine WSe2 monolayer with the binding force of -4.33 eV. Via the gas adsorption analysis, it is found that the Ni-WSe2 monolayer performs chemisorption upon CO and HCHO molecules, with adsorption energies of -2.27 and -1.37 eV, respectively. The analyses of the band structure and Frontier molecular orbital manifest the potential of the Ni-WSe2 monolayer as a resistance-type gas sensor upon CO and HCHO, with sensing responses of 55.9 and 30.9% based on the band gap change and of 55.0 and 38.5% based on the energy gap change. The analysis of the density of state clearly shows the modified electronic property of the Ni-WSe2 monolayer in gas adsorptions. On the other hand, the analysis of the work function (WF) reveals the limited possibility to explore the Ni-WSe2 monolayer as a WF-based gas sensor for CO and HCHO detections. This work systemically studies the sensing potential of the Ni-WSe2 monolayer upon two typical gas species in the dry-type transformers, which is meaningful to explore novel nanomaterial-based gas sensors to monitor the operation condition of electrical equipment.
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Affiliation(s)
- Yan Liu
- State
Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
| | - Jianben Liu
- State
Key Laboratory of Power Grid Environmental Protection, China Electric Power Research Institute, Wuhan 430074, China
| | - Zhuo Wei
- China
Electric Power Research Institute, Wuhan 430074, China
| | - Tian Yuan
- China
Electric Power Research Institute, Wuhan 430074, China
| | - Hao Cui
- College
of Artificial Intelligence, Southwest University, Chongqing 400715, China
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10
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Nie S, Li J, Tao L, He Y, Dastan D, Meng X, Poldorn P, Yin X. Insights into Selective Mechanism of NiO-TiO 2 Heterojunction to H 2 and CO. ACS Sens 2023; 8:4121-4131. [PMID: 37873607 DOI: 10.1021/acssensors.3c01321] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The construction of p-n heterojunctions has become a widely adopted strategy for achieving the selective detection of reducing gases, including H2 and CO. Nevertheless, the elucidation of the gas selectivity mechanism at the nanoscale remains elusive. First-principle calculations provide an attractive avenue for comprehending the influence of coordination structures on gas-sensitive selectivity, thereby unveiling the structure-activity relationship of p-n heterojunction sites. In this study, we investigate the selective adsorption behavior of H2 and CO on a NiO-TiO2 heterojunction using density functional theory. The results of d-band center analysis confirm that the NiO-TiO2 heterojunction with adsorbed oxygen significantly enhances the adsorption stability of reducing gases. Intriguingly, our calculations reveal that H2 has a higher affinity for adsorbed oxygen on the heterojunction surface compared to that of CO, corresponding to a lower H2 adsorption energy. Density of states (DOS) results indicate that the NiO-TiO2 heterojunction, with preadsorbed oxygen, exhibits ultrahigh selectivity with an n-type gas-sensitive response to H2, effectively eliminating the cross-sensitivity observed with CO, as confirmed by gas-sensitive characterization research. The sensing mechanism of the NiO-TiO2 heterojunction's selective detection of H2 without interference from CO can be visually explained by electron transfer and potential barrier changes, paving the way for future developments in novel, selective gas-sensitive materials.
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Affiliation(s)
- Shuai Nie
- School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China
| | - Jing Li
- School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China
| | - Lin Tao
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
| | - Yunxia He
- School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, China
| | - Davoud Dastan
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Xianze Meng
- School of Materials, Sun Yat-sen University, Guangzhou 510006, China
| | - Preeyaporn Poldorn
- Center for Organic Electronic and Alternative Energy, Faculty of Science, Ubon Ratchathani University, Ubon Ratchathani 34190, Thailand
| | - Xitao Yin
- School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264000, China
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11
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Nguyen DK, Ha CV, Hong Gam LT, Guerrero-Sanchez J, Hoat DM. First-principles study of indium nitride monolayers doped with alkaline earth metals. RSC Adv 2023; 13:33634-33643. [PMID: 38020031 PMCID: PMC10652252 DOI: 10.1039/d3ra04169g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 11/04/2023] [Indexed: 12/01/2023] Open
Abstract
Element doping has been widely employed to modify the ground state properties of two-dimensional (2D) materials. In this work, the effects of doping with alkaline earth metals (AEMs) on the structural, electronic, and magnetic properties of indium nitride (InN) monolayers are investigated using first-principles calculations based on density functional theory. In a graphene-like honeycomb structure, the InN monolayer possesses good dynamical and thermal stability, and exhibits an indirect gap semiconductor character with a band gap of 0.37 (1.48) eV as determined by using the PBE(HSE06) functional. A single In vacancy leads to the emergence of a magnetic semiconductor character, where magnetic properties with a large total magnetic moment of 3.00 μB are produced mainly by the N atoms closest to the defect site. The incorporation of AEMs impurities causes local structural distortion due to the difference in atomic size, where Mg and Ca doping processes are energetically most favorable. Half-metallicity is induced by the partial occupancy of the N-2p orbital, which is a consequence of having one valence electron less. In these cases, the total magnetic moment of 1.00 μB mainly originates from N atoms neighboring the dopants. Further increasing the doping level preserves the half-metallic character, where N atoms play a key role on the magnetism of the highly doped systems. Results presented herein suggest the In replacement by AEMs impurities is an effective approach to make prospective spintronic 2D materials from InN monolayers.
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Affiliation(s)
- Duy Khanh Nguyen
- Laboratory for Computational Physics, Institute for Computational Science and Artificial Intelligence, Van Lang University Ho Chi Minh City Vietnam
- Faculty of Mechanical - Electrical and Computer Engineering, School of Technology, Van Lang University Ho Chi Minh City Vietnam
| | - Chu Viet Ha
- Faculty of Physics, TNU-University of Education Thai Nguyen 250000 Vietnam
| | - Le T Hong Gam
- Faculty of Physics, TNU-University of Education Thai Nguyen 250000 Vietnam
| | - J Guerrero-Sanchez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología Apartado Postal 14 Ensenada Baja California Código Postal 22800 Mexico
| | - D M Hoat
- Institute of Theoretical and Applied Research, Duy Tan University Ha Noi 100000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang 550000 Vietnam
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12
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Boonpalit K, Kinchagawat J, Prommin C, Nutanong S, Namuangruk S. Efficient exploration of transition-metal decorated MXene for carbon monoxide sensing using integrated active learning and density functional theory. Phys Chem Chem Phys 2023; 25:28657-28668. [PMID: 37849315 DOI: 10.1039/d3cp03667g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
The urgent demand for chemical safety necessitates the real-time detection of carbon monoxide (CO), a highly toxic gas. MXene, a 2D material, has shown potential for gas sensing applications (e.g., NH3, NO, SO2, CO2) due to its high surface accessibility, electrical conductivity, stability, and flexibility in surface functionalization. However, the pristine MXene generally exhibits poor interaction with CO; still, transition metal decoration can strengthen the interaction between CO and MXene. This study presents a high-throughput screening of 450 combinations of transition-metal (TM) decorated MXene (TM@MXene) for CO sensing applications using an integrated active learning (AL) and density functional theory (DFT) screening pipeline. Our AL pipeline, adopting a crystal graph convolutional neural network (CGCNN) as a surrogate model, successfully accelerates the screening of CO sensor candidates with minimal computational resources. This study identifies Sc@Zr3C2O2 and Y@Zr3C2O2 as the optimal TM@MXene candidates with promising CO sensing performance regarding the screening criteria of recovery time, surface stability, charge transfer, and sensitivity to CO. The proposed AL framework can be extended for property finetuning in the combinatorial chemical space.
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Affiliation(s)
- Kajjana Boonpalit
- School of Information Science and Technology, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Jiramet Kinchagawat
- School of Information Science and Technology, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Chanatkran Prommin
- School of Information Science and Technology, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Sarana Nutanong
- School of Information Science and Technology, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Supawadee Namuangruk
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Luang, Pathum Thani 12120, Thailand
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13
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Wang H, Li X, Wu J, Zhang D. An Experimental and Density Functional Theory Simulation Study of NO Reduction Mechanisms over Fe 0 Supported on Graphene with and without CO. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15369-15379. [PMID: 37862119 DOI: 10.1021/acs.langmuir.3c02461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
NO reduction over highly dispersed zerovalent iron (Fe0) supported on graphene (G), with and without the presence of CO in the reacting stream, was systematically studied using a fixed-bed reactor, and the reaction mechanism was examined with the aid of in situ Fourier transform infrared (FTIR) spectroscopy and density functional theory (DFT) calculations. The in situ FTIR results showed that NO adsorbed on the Fe0 site is reduced to form active surface oxygen species (O*), which is then reduced by carbon in graphene to form CO2. The presence of CO in the reacting stream helps to reduce the oxidized Fe(O) sites to regenerate Fe0 sites, making NO reduction easier. It was revealed that NO and CO2 are easily adsorbed on the active surface oxygen species (O*) to form nitrate and carbonate, inhibiting their reduction by CO and deactivating the catalyst. The DFT calculations results suggest that the role of Fe is to reduce the energy barrier of the NO adsorption and decomposition, which controls the formation of active surface oxygen species and N2. The combined FTIR and DFT results offer new insights into the possible mechanism of catalytic NO reduction over graphene loaded with Fe, with and without CO.
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Affiliation(s)
- Huanran Wang
- Liaoning Provincial Engineering Research Centre for Advanced Coking and Coal Utilization, University of Science and Technology Liaoning, Anshan 114051, China
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
- Centre for Energy (M473), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Xianchun Li
- Liaoning Provincial Engineering Research Centre for Advanced Coking and Coal Utilization, University of Science and Technology Liaoning, Anshan 114051, China
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China
| | - Junzhi Wu
- Centre for Energy (M473), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
- Shanxi Institute of Energy, Taiyuan, Shanxi 030006, China
| | - Dongke Zhang
- Centre for Energy (M473), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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14
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Shi N, Yan H, Wang X, Liu G, Wang J, Han Y, Duan Z, Zhao G. A flexible and wearable PET-based chemiresistive H 2S gas sensor modified with MoS 2-AgCl@AgNPs nanocomposite for the dynamic monitoring of egg spoilage. Anal Chim Acta 2023; 1279:341836. [PMID: 37827651 DOI: 10.1016/j.aca.2023.341836] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/16/2023] [Accepted: 09/19/2023] [Indexed: 10/14/2023]
Abstract
In this study, a flexible and wearable chemiresistive hydrogen sulfide (H2S) sensor is developed by modifying the MoS2-AgCl@AgNPs (MAAN) nanocomposite on a flexible PET-based Au interdigital electrode (FPAIDE) (MAAN/FPAIDE) to monitor egg spoilage at room temperature inexpensively. A new method is developed for the low-cost batch fabrication of MAAN/FPAIDEs by laser direct writing. The morphology and composition of the synthesized MAAN nanocomposite are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and transmission electron microscopy (TEM). Based on the oxygen adsorption model, a new H2S sensing mechanism is discussed, which is related to the formation of p-n junctions between MoS2 and AgCl and the specific adsorption of H2S by AgNPs on the MAAN sensing layer, causing a decrease in resistance. X-ray photoelectron spectroscopy (XPS) is used to characterize the charge transfer between gas molecules and the MAAN sensing layer and sulfide generation during the response process. The concentration of H2S can be detected down to 27 ppb at 25 °C. Finally, the prepared sensor has been successfully utilized in the real-time monitoring of egg spoilage with satisfactory results, indicating its great potential for the application of fresh food quality and safety supervision and the smart packaging of poultry eggs.
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Affiliation(s)
- Ning Shi
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Hanlong Yan
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Xiaochan Wang
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Gang Liu
- Key Lab of Modern Precision Agriculture System Integration Research, Ministry of Education of China, China Agricultural University, Beijing, 100083, PR China
| | - Jiaxuan Wang
- College of Engineering, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Yu Han
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Zhibo Duan
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China
| | - Guo Zhao
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, 210031, PR China.
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15
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Cui H, Gao C, Wang P, Li L, Ye H, Wen Z, Liu Y. DFT Study of Zn-Modified SnP 3: A H 2S Gas Sensor with Superior Sensitivity, Selectivity, and Fast Recovery Time. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2781. [PMID: 37887932 PMCID: PMC10609550 DOI: 10.3390/nano13202781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/11/2023] [Accepted: 10/15/2023] [Indexed: 10/28/2023]
Abstract
The adsorption properties of Cu, Ag, Zn, and Cd-modified SnP3 monolayers for H2S have been studied using density functional theory (DFT). Based on phonon spectrum calculations, a structurally stable intrinsic SnP3 monolayer was obtained, based on which four metal-modified SnP3 monolayers were constructed, and the band gaps of the modified SnP3 monolayers were significantly reduced. The adsorption capacity of Cu, Zn-modified SnP3 was better than that of Ag, Cd-modified SnP3. The adsorption energies of Cu-modified SnP3 and Zn-modified SnP3 for H2S were -0.749 eV and -0.639 eV, respectively. In addition, Cu-modified SnP3 exhibited chemisorption for H2S, while Zn-modified SnP3 exhibited strong physisorption, indicating that it can be used as a sensor substrate. Co-adsorption studies showed that ambient gases such as N2, O2, and H2O had little effect on H2S. The band gap change rate of Zn-modified SnP3 after adsorption of H2S was as high as -28.52%. Recovery time studies based on Zn-modified SnP3 showed that the desorption time of H2S was 0.064 s at 298 K. Therefore, Zn-modified SnP3 can be used as a promising sensor substrate for H2S due to its good selectivity, sensitivity, and fast recovery time.
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Affiliation(s)
- Hongyuan Cui
- Key Laboratory of Optoelectronic Technology & Systems (Chongqing University), Ministry of Education, Chongqing 400044, China; (H.C.)
- Centre for Intelligent Sensing Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Chenshan Gao
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Pengwei Wang
- Key Laboratory of Optoelectronic Technology & Systems (Chongqing University), Ministry of Education, Chongqing 400044, China; (H.C.)
- Centre for Intelligent Sensing Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
| | - Lijie Li
- Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UK
| | - Huaiyu Ye
- School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhongquan Wen
- Key Laboratory of Optoelectronic Technology & Systems (Chongqing University), Ministry of Education, Chongqing 400044, China; (H.C.)
| | - Yufei Liu
- Key Laboratory of Optoelectronic Technology & Systems (Chongqing University), Ministry of Education, Chongqing 400044, China; (H.C.)
- Centre for Intelligent Sensing Technology, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
- Faculty of Science and Engineering, Swansea University, Swansea SA1 8EN, UK
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16
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Wei C, Ge M, Fang T, Tang X, Liu X. Rational design of MXene-based single atom catalysts for Na-Se batteries from sabatier principle. Phys Chem Chem Phys 2023; 25:24948-24959. [PMID: 37694491 DOI: 10.1039/d3cp02150e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Na-Se batteries have attracted great attention because of their high-energy density and low cost, though the shuttle effect of polyselenides and sluggish reaction dynamics still limit their practical applications. Herein, MXenes were decorated with single zinc atom as selenium hosts, and the effect of interfacial electrochemical reaction was studied via first-principles simulation. The embedding of single zinc atom into MXenes was found to enhance the anchoring ability to inhibit the shuttle effect. However, Zn-MXenes as single atom catalysts had different effects on interfacial electrochemical reactions, which can be attributed to the increased interaction strengths between Zn-MXenes and polyselenides. For Ti-based MXenes, the enhanced interaction was found to be beneficial for the electrochemical reaction, whereas the overly strong anchoring strength of Zn-Cr2CO2 would inhibit charging-discharging kinetics. Therefore, the matching of MXenes and metal atoms should be considered to adjust the anchoring ability based on the Sabatier principle. This work provides new insights into the design of SACs and high-performance Na-Se batteries.
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Affiliation(s)
- Chunlei Wei
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, Shandong, China
| | - MengMeng Ge
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
- College of Materials Science and Engineering, Qingdao University, Qingdao 266071, Shandong, China
| | - Timing Fang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
| | - Xiao Tang
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
| | - Xiaomin Liu
- School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, China.
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17
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Khan J, Bibi S, Naseem I, Ahmed S, Hafeez M, Ahmed K, Altaf F, Dastan D, Syed A, Jabir MS, Mohammed MKA, Tao L. Ternary Metal (Cu-Ni-Zn) Oxide Nanocomposite via an Environmentally Friendly Route. ACS OMEGA 2023; 8:21032-21041. [PMID: 37323397 PMCID: PMC10268284 DOI: 10.1021/acsomega.3c01896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023]
Abstract
In this work, we report the engineering of sub-30 nm nanocomposites of CuO/ZnO/NiO by using Dodonaea viscosa leaf extract. Zinc sulfate, nickel chloride, and copper sulfate were used as salt precursors, and isopropyl alcohol and water were used as solvents. The growth of nanocomposites was investigated by varying the concentrations of precursors and surfactants at pH 12. The as-prepared composites were characterized by XRD analysis and found to have CuO (monoclinic), ZnO (hexagonal primitive), and NiO (cubic) phases with an average size of 29 nm. FTIR analysis was performed to investigate the mode of fundamental bonding vibrations of the as-prepared nanocomposites. The vibrations of the prepared CuO/ZnO/NiO nanocomposite were detected at 760 and 628 cm-1, respectively. The optical bandgap energy of the CuO/NiO/ZnO nanocomposite was 3.08 eV. Ultraviolet-visible spectroscopy was performed to calculate the band gap by the Tauc approach. Antimicrobial and antioxidant activities of the synthesized CuO/NiO/ZnO nanocomposite were investigated. It was found that the antimicrobial activity of the synthesized nanocomposite increases with an increase in the concentration. The antioxidant activity of the synthesized nanocomposite was examined by using both ABTS and DPPH assays. The obtained results show an IC50 value of 0.110 for the synthesized nanocomposite compared to DPPH and ABTS (0.512), which is smaller than that of ascorbic acid (IC50 = 1.047). Such a low IC50 value ensures that the antioxidant potential of the nanocomposite is higher than that of ascorbic acid, which in turn shows their excellent antioxidant activity against both DPPH and ABTS.
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Affiliation(s)
- Jahanzeb Khan
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur, Azad Kashmir 10250, Pakistan
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Saiqa Bibi
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Irsa Naseem
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Shakeel Ahmed
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P. R. China
| | - Muhammad Hafeez
- Department
of Chemistry, University of Azad Jammu &
Kashmir, Muzaffarabad, Azad Kashmir 13100, Pakistan
| | - Khalil Ahmed
- Department
of Chemistry, Mirpur University of Science
and Technology (MUST), Mirpur, Azad Kashmir 10250, Pakistan
| | - Faizah Altaf
- Department
of Environmental Sciences, Women University
of Azad Kashmir, Bagh 12500, Pakistan
| | - Davoud Dastan
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14850, United States
| | - Asad Syed
- Department
of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Majid S. Jabir
- Department
of Applied Sciences, University of Technology-Iraq, 10011 Baghdad, Iraq
| | - Mustafa K. A. Mohammed
- College
of Remote Sensing and Geophysics, Al-Karkh
University of Science, Al-Karkh Side, Haifa St. Hamada Palace, Baghdad 10011, Iraq
| | - Lin Tao
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan, Liaoning CN 114051, P. R. China
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18
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Li H, Wang X, Gong Y, Zhao H, Liu Z, Tao L, Peng Y, Ma K, Hu Z, Dastan D. Polyimide/crown ether composite film with low dielectric constant and low dielectric loss for high signal transmission. RSC Adv 2023; 13:7585-7596. [PMID: 36908549 PMCID: PMC9993404 DOI: 10.1039/d2ra07043j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/21/2023] [Indexed: 03/14/2023] Open
Abstract
Dielectric properties of polyimide (PI) are constrained by its inherent molecular structure and inter-chain packing capacities. The compromised dielectric properties of PI, however, could be rescued by introducing trifluoromethyl and forming a host-guest inclusion complex with the introduction of crown ethers (CEs). Herein, we report PI/crown ether composite films as a communication substrate that could be applied under high frequency circumstances. In this work, three kinds of bisphenol A-containing diamine (2,2'-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(2-methyl-4-aminophenoxy)phenyl]propane, and 2,2-bis[4-(2-trifluoro methyl-4-aminophenoxy)phenyl]propane) are synthesized and polymerized with 4,4'-(hexafluoroisopropylidene)diphthalic anhydride to prepare low-dielectric PI films by means of thermal imidization. Crown ethers are introduced into the PI with different mass fractions to obtain three series of PI films. Following the combination of trifluoromethyl into the molecular chain of PI, high frequency dielectric loss of modified PI films can be effectively reduced. The properties of these materials (especially the dielectric properties) are thoroughly explored by crown ether addition. The results show that the crown ether addition process can offer crown ethers with increased free volume of PI matrix, thus allowing them to generate a special necklace-like supramolecular structure, which makes the crown ether disperse more uniformly in the PI matrix, resulting in improved dielectric properties. Importantly, the dielectric constant and dielectric loss of the composite films at high frequencies are remarkably reduced to 2.33 and 0.00337, respectively. Therefore, these composite films are expected to find extensive use as a 5G communication substrate at high frequencies in the future.
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Affiliation(s)
- Heming Li
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Xinming Wang
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Yuze Gong
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Sinochem LantianFluoro Materials Co., Ltd China
| | - Hongbin Zhao
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Zhaobin Liu
- Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Lin Tao
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Youyou Peng
- Montverde Future Academy Shanghai 88 jianhao Road, Pudong New District Shanghai 201318 China
| | - Ke Ma
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China
| | - Zhizhi Hu
- School of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 China .,Oxiranchem Holding Group Co. Ltd Liaoyang 111003 China
| | - Davoud Dastan
- Department of Materials Science and Engineering, Cornell University Ithaca NY 14850 USA
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