IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-22 DOI: 10.1039/d4nr04002c

Fujun Niu, Liang Qiu, Huai Chen, Xinyu Chen, Xiangpeng Kong, Qiang Rong, Junqiao Xiong, Yang Guo, Zhijian Cai, Shaohua Shen

{"title":"Nanocatalysis in Cathode Pre-lithiation for Lithium-ion Battery: Progress and Challenges","authors":"Fujun Niu, Liang Qiu, Huai Chen, Xinyu Chen, Xiangpeng Kong, Qiang Rong, Junqiao Xiong, Yang Guo, Zhijian Cai, Shaohua Shen","doi":"10.1039/d4nr04002c","DOIUrl":"https://doi.org/10.1039/d4nr04002c","url":null,"abstract":"Pre-lithiation, which is capable of supplying additional active lithium sources to lithium-ion battery, has been widely accepted as one of the most promising approaches to address the issue of active lithium loss during the entire process of initial charging and subsequent cycling. In comparison to anode pre-lithiation, cathode pre-lithiation exhibits a facile operating procedure and good compatibility with the current lithium-ion battery production processes. However, the cathode pre-lithiation additives suffer from high decomposition voltage and low decomposition efficiency. In view of this, a variety of nanocatalysts have been developed in recent years to enhance the decomposition kinetic of cathode pre-lithiation additives. Nevertheless, a comprehensive review of nanocatalysis in cathode pre-lithiation is still lacking. This timely review aims to present the crucial role of nanocatalysis in cathode pre-lithiation and provide an up-to-date overview of this field. After demonstrating the significance of nanocatalyst for cathode pre-lithiation, recent progress in the application of nanocatalysts for high-efficiency cathode pre-lithiation is briefly introduced. Finally, future challenges and directions for the commercialization of cathode pre-lithiation technique in conjunction with nanocatalysts are reviewed. The current review provides important insights into the nanocatalysis as a cutting-edge strategy for favorable cathode pre-lithiation and builds a bridge between academic research and industrial applications of nanocatalytic cathode pre-lithiation for lithium-ion battery with high capacity and good cyclability.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452265","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

Orotic acid-capped Tb(III)-doped calcium sulphate nanorods for the selective detection of tryptophan 用于色氨酸选择性检测的掺杂硫酸钙的乳清酸封接纳米棒

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr02774d

Jaydeep Kumar, Neha Yadav, Viplove Mishra, Heramba V. S. R. M. Koppisetti, Avishek Roy, Antarip Mitra, Venkataramanan Mahalingam

{"title":"Orotic acid-capped Tb(III)-doped calcium sulphate nanorods for the selective detection of tryptophan","authors":"Jaydeep Kumar, Neha Yadav, Viplove Mishra, Heramba V. S. R. M. Koppisetti, Avishek Roy, Antarip Mitra, Venkataramanan Mahalingam","doi":"10.1039/d4nr02774d","DOIUrl":"https://doi.org/10.1039/d4nr02774d","url":null,"abstract":"Lanthanide-based luminescent materials have gained huge attention due to their applications in optoelectronic devices, sensing, bio-imaging, anti-counterfeiting, and more. In this work, we report a luminescence-based sensor for the detection of tryptophan using orotic acid-capped Tb3+-doped CaSO4 nanorods (NRs). Orotic acid (OA) was found to play a dual role as a capping agent to control the growth of the nanorods and as a sensitizer for Tb3+ ions. The resulting nanorods exhibited excellent dispersibility and strong photoluminescence signals characteristic of Tb3+ ions in the visible region. Nearly 10-fold enhancement in the emission intensity was noted through OA sensitization compared to direct excitation of Tb3+ ions (acceptors). Interestingly, the strong emission intensity of the NRs reduced significantly with the addition of tryptophan. In contrast, hardly any change was noted with the addition of other amino acids and metal ions, suggesting greater selectivity for tryptophan. Moreover, there is barely any notable interference from other amino acids toward the detection of tryptophan. The limit of detection is found to be ∼0.61 μM. Finally, the sensing study was extended to biological samples to detect tryptophan present in blood plasma, urine, and saliva samples. The nanorods demonstrated high detection abilities, indicating the potential of the developed materials for biomedical applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452316","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

One pot synthesis of heterostructure CsPbBr3/PdSe nanowires with excellent humidity stability 一次性合成具有优异湿度稳定性的异质结构 CsPbBr3/PdSe 纳米线

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr03554b

Shuai Ye, Mingyi Huang, Jun Song, Junle Qu

引用次数: 0

Characterization of neutral metal hydride-hydroxide hydrogen-bonded clusters HMOH(H2O)2 (M = Al and Ga)† 中性金属氢化物-氢氧化物氢键团簇 HMOH(H2O)2（M = Al 和 Ga）的表征†

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr03440f

Wenhui Yan, Huijun Zheng, Tiantong Wang, Shuai Jiang, Shangdong Li, Jianxing Zhuang, Hua Xie, Gang Li, Ling Jiang

引用次数: 0

Chromium Cobaltite Based Ternary Composite as Efficient Electrode Material for Hybrid Supercapacitors with Theoretical Investigation 基于铬钴酸盐的三元复合材料作为混合超级电容器的高效电极材料及其理论研究

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr02982h

Simran Kour, Pawanpreet Kour, A. L. Sharma

{"title":"Chromium Cobaltite Based Ternary Composite as Efficient Electrode Material for Hybrid Supercapacitors with Theoretical Investigation","authors":"Simran Kour, Pawanpreet Kour, A. L. Sharma","doi":"10.1039/d4nr02982h","DOIUrl":"https://doi.org/10.1039/d4nr02982h","url":null,"abstract":"To cater the growing demand of advanced energy storage devices, the development of efficient electrode materials with brilliant electrochemical response is highly required. Battery-like materials have gained wide research attention as effective electrode materials for hybrid supercapacitors (HSCs). In this account, chromium cobaltite (CrCo2O4) has been synthesized via a facile hydrothermal route. The structural and electronic properties of CrCo2O4 have been investigated using DFT. Activated carbon (AC) and polypyrrole (PPY) have been introduced to hybridize with CrCo2O4 to enhance its electrochemical performance. The high conductivity of PPY, along with high surface area and excellent cyclic stability of AC, synergistically boost the performance of CrCo2O4. The ternary composite CrCo2O4/AC/PPY exhibited a high capacitance of 991.25 F g-1 than the pristine CrCo2O4 (301.53 F g-1) at 5 mV s-1. The composite also displayed high cyclic stability with 84.25% capacitive retention after ten thousand cycles. The composite also delivered lower charge transfer resistance (0.36 Ω), which resulted in better charge transfer. A HSC with CrCo2O4/AC/PPY as the positive and MnO2/AC as the negative electrode was fabricated that delivered a high energy density of 97.77 Wh kg-1 and power of 1.6 kW kg-1. A high capacitive retention of 76.75% was observed for ten thousand cycles. The practicality of the prepared material was tested by connecting three hybrid cells in series to illuminate a panel of 57 LEDs. The panel was able to glow for 51 minutes. The outstanding performance of the composite reveals the excellent possibility for the application in high-performance advanced hybrid SCs.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452317","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

In situ three-dimensional observation of plasticity onset in a Pt nanoparticle 原位三维观测铂纳米粒子的塑性萌发

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr02634a

Sarah Yehya, Thomas W. Cornelius, Marie-Ingrid Richard, Felisa Berenguer, Mor Levi, Eugen Rabkin, Olivier Thomas, Stéphane Labat

{"title":"In situ three-dimensional observation of plasticity onset in a Pt nanoparticle","authors":"Sarah Yehya, Thomas W. Cornelius, Marie-Ingrid Richard, Felisa Berenguer, Mor Levi, Eugen Rabkin, Olivier Thomas, Stéphane Labat","doi":"10.1039/d4nr02634a","DOIUrl":"https://doi.org/10.1039/d4nr02634a","url":null,"abstract":"Defects in nanocrystals can dramatically alter their physical and chemical behavior. It is thus crucial to understand the defect behavior at the nanoscale to enhance material properties. Here, we report three-dimensional defect characterization at the onset of plasticity in a 550 nm Pt nanoparticle. By combining in situ nano-indentation with Bragg Coherent X-ray Diffraction Imaging (BCDI), we directly observe the strain field inside the Pt particle during indentation, revealing the nucleation and propagation of prismatic dislocation loops. Subsequent post mortem imaging of the complete dislocation network, coupled with multi-reflection BCDI, enabled us to determine the Burgers vectors of the defects revealing sessile dislocations. Finally, by measuring the elastic field inside the crystal during indentation, we estimate that the shear stress required to generate defects is 6.4 GPa, representing the upper theoretical limit of elasticity and setting an unprecedented standard for Pt nanoparticles. Our findings provide fundamental insights into defect dynamics in nanoscale systems, offering invaluable knowledge for advanced materials design and engineering.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452318","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

Understanding the Emergence of Negative Photoconductivity in CVD grown ReS2 Thin Film Invoking Trion Generation Mechanism 理解在 CVD 生长的 ReS2 薄膜中出现的负光电导引发的三离子生成机制

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr02577f

Sakshi Garg, Abhishek Ghosh, Pallavi Aggarwal, Taslim Khan, Sonika Singh, Ashok Kapoor, Rajendra Singh

{"title":"Understanding the Emergence of Negative Photoconductivity in CVD grown ReS2 Thin Film Invoking Trion Generation Mechanism","authors":"Sakshi Garg, Abhishek Ghosh, Pallavi Aggarwal, Taslim Khan, Sonika Singh, Ashok Kapoor, Rajendra Singh","doi":"10.1039/d4nr02577f","DOIUrl":"https://doi.org/10.1039/d4nr02577f","url":null,"abstract":"Emerging from robust Coulombic interactions and diminished dielectric screening, two-dimensional transition metal dichalcogenides (2D TMDs) manifest strongly bound excitons. While these pronounced many-body effects have been observed in 2D TMDs, their impact on the materials' intrinsic photoconductive characteristics remains relatively less explored. In this study, a considerable reduction in photoconductivity in chemically vapor deposited (CVD) ReS2 thin films has been observed. Through experimental and theoretical scrutiny, it is deduced that this anomalous phenomenon stems from the possible many-body interactions within the system, wherein photoexcited electron-hole pairs combine with excess electrons to generate trions. The formation of trions reduces the effective number of carriers contributing to photocurrent, thereby attenuating the photoconductivity. This study shows the profound influence of trion on photoconductivity behaviour of ReS2 thin films, thereby elucidating its significance in modulating optical and electrical properties crucial for optoelectronic applications.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452123","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

Selective photocatalytic C-C coupling of benzyl alcohol into hydrobenzoin using Pt-deposited CdS nanosheets passivated with cysteamine 利用半胱胺钝化的铂沉积 CdS 纳米片选择性光催化 C-C 偶联苯甲醇制氢苯甲酸酯

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr03148b

Pan Lu, Gui-Min Kim, Nianfang Wang, Joongjai Panpranot, Whi Dong Kim, Doh C. Lee

{"title":"Selective photocatalytic C-C coupling of benzyl alcohol into hydrobenzoin using Pt-deposited CdS nanosheets passivated with cysteamine","authors":"Pan Lu, Gui-Min Kim, Nianfang Wang, Joongjai Panpranot, Whi Dong Kim, Doh C. Lee","doi":"10.1039/d4nr03148b","DOIUrl":"https://doi.org/10.1039/d4nr03148b","url":null,"abstract":"Achieving high selectivity towards hydrobenzoin (HB) from photocatalytic carbon-carbon (C-C) coupling reaction of benzyl alcohol (BzOH) remains a challenge due to side competing reactions and subsequent conversions of HB into its derivatives. In this study, we have developed a high-performance CdS-based photocatalyst for synthesizing HB with precisely controlled surface properties and structure, achieving high selectivity for HB synthesis. We employed strategies such as cysteamine passivation and Pt deposition to address issues related to photogenerated charge trapping and recombination, thereby enhancing the photocatalytic capability of CdS. With optimized Pt/CdS NSs as the photocatalyst, we investigated the impact of the Pt/CdS heterostructure on intermediate reactions, which in turn altered product selectivity. Specifically, excessive Pt suppresses the electron-induced benzaldehyde-to-intermediate reaction by consuming electrons for competing hydrogen evolution reaction (HER), leading to high selectivity toward benzaldehyde. In contrast, bare CdS without Pt suffers from insufficient charge supply for BzOH conversion due to the charge recombination issue, which promotes the subsequent conversion of HB to its derivatives. Notably, when Pt is precisely loaded to avoid dominant HER competition, the overall reaction rate increases, maintaining high selectivity towards HB and ensuring faster conversion of BzOH to HB rather than subsequent conversions of HB into its derivatives, thereby maximizing the HB yield. Subsequently, we have developed a photocatalyst that achieves a 93.4% conversion of 0.24 mmol BzOH with 85.3% selectivity toward HB under solar simulator irradiation (AM 1.5G). This work is expected to offer instructive guidance on rationally designing the photocatalyst for efficient C-C coupling reactions.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451593","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

Engineering light-driven micromotors with fluorescent dye coatings for easy detection and tracking 设计带有荧光染料涂层的光驱动微电机，便于检测和跟踪

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr03274h

Srikanta Debata, Suvendu Kumar Panda, Dhruv Pratap Singh

{"title":"Engineering light-driven micromotors with fluorescent dye coatings for easy detection and tracking","authors":"Srikanta Debata, Suvendu Kumar Panda, Dhruv Pratap Singh","doi":"10.1039/d4nr03274h","DOIUrl":"https://doi.org/10.1039/d4nr03274h","url":null,"abstract":"Micromotors are the backbone of material research as they are small-sized, self-propelled, intelligent systems capable of performing multiple tasks ranging from biomedicine to environmental monitoring. One of the primary obstacles the field faces is the live detection and differentiation of individual units through a complex environment. In this study, we demonstrate a facile approach for designing light-activated dye-tagged micromotors on a large scale. Both rod and sphere shaped micromotors made of titanium dioxide (TiO2)/copper oxide (Cu2O)-silica are designed to self-propel under the illumination of low-intensity UV/Visible light in aqueous peroxide medium. The micromotors were modified with site-specific coatings of different dyes, such as Alq3, Alizarin, Zinc Phthalocyanine, etc. The fabrication of micromotors and coating with dyes was performed using a simple and versatile physical vapor deposition-based glancing angle deposition (GLAD) technique. The fluorescent dyes help to detect the motion and position of micromotors independently. Moreover, they also help to identify the swimming direction as well as differentiate the micromotors in a complex medium consisting of similar configurations of other particles (bacteria and passive fluorescent particles). Light provides full control over the dynamics as well as the fluorescent nature of micromotors. To present the versatility of our design scheme, micromotors of different shapes, materials, and dye coatings are designed and explored for fluorescence-based observations. The simplistic design approach with easy-to-load multiple fluorescent dyes at specific locations is an interesting feature that makes the micromotors suitable candidates for various microfluidic and lab-on-a-chip studies, including biological or fluorescent samples.","PeriodicalId":92,"journal":{"name":"Nanoscale","volume":null,"pages":null},"PeriodicalIF":6.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451599","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

Photocatalytic Applications of Covalent Organic Frameworks: Synthesis, Characterization, and Utility 共价有机框架的光催化应用：合成、表征和实用性

IF 6.7 3区材料科学

Nanoscale Pub Date : 2024-10-21 DOI: 10.1039/d4nr03204g

Jared G Doremus, Bertha Lotsi, Aadarsh Sharma, Psaras L McGrier

引用次数: 0

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