Pub Date : 2024-02-01DOI: 10.1016/j.nanoms.2023.11.002
Xinyu Wang , Ramon Alberto Paredes Camacho , Xiaoyu Xu , Yumei Wang , Yi Qiang , Hans Kungl , Ruediger-A. Eichel , Yunfeng Zhang , Li Lu
Aerosol deposition (AD) method is a kind of additive manufacturing technology for fabricating dense films such as metals and ceramics at room temperature. It resolves the challenge of integrating ceramic films onto temperature-sensitive substrates, including metals, glasses, and polymers. It should be emphasized that the AD is a spray coating technology that uses powder without thermal assistance to generate films with high density. Compared to the traditional sputter-based approach, the AD shows several advantages in efficiency, convenience, better interfacial bonding and so on. Therefore, it opens some possibilities to the field of batteries, especially all-solid-state batteries (ASSBs) and draws much attention not only for research but also for large scale applications.
The purpose of this work is to provide a critical review on the science and technology of AD as well as its applications in the field of batteries. The process, mechanism and effective parameters of AD, and recent developments in AD applications in the field of batteries will be systematically reviewed so that a trend for AD will be finally provided.
{"title":"Aerosol deposition technology and its applications in batteries","authors":"Xinyu Wang , Ramon Alberto Paredes Camacho , Xiaoyu Xu , Yumei Wang , Yi Qiang , Hans Kungl , Ruediger-A. Eichel , Yunfeng Zhang , Li Lu","doi":"10.1016/j.nanoms.2023.11.002","DOIUrl":"10.1016/j.nanoms.2023.11.002","url":null,"abstract":"<div><p>Aerosol deposition (AD) method is a kind of additive manufacturing technology for fabricating dense films such as metals and ceramics at room temperature. It resolves the challenge of integrating ceramic films onto temperature-sensitive substrates, including metals, glasses, and polymers. It should be emphasized that the AD is a spray coating technology that uses powder without thermal assistance to generate films with high density. Compared to the traditional sputter-based approach, the AD shows several advantages in efficiency, convenience, better interfacial bonding and so on. Therefore, it opens some possibilities to the field of batteries, especially all-solid-state batteries (ASSBs) and draws much attention not only for research but also for large scale applications.</p><p>The purpose of this work is to provide a critical review on the science and technology of AD as well as its applications in the field of batteries. The process, mechanism and effective parameters of AD, and recent developments in AD applications in the field of batteries will be systematically reviewed so that a trend for AD will be finally provided.</p></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 1","pages":"Pages 24-37"},"PeriodicalIF":9.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000703/pdfft?md5=89118667ea7b6b122adbe336ee085ec4&pid=1-s2.0-S2589965123000703-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138495180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01DOI: 10.1016/j.nanoms.2023.05.004
T. Suhartono , F. Hazmatulhaq , Y. Sheng , A. Chaouiki , M.P. Kamil , Y.G. Ko
Despite the engineering potential by the co-existence of inorganic and organic substances to protect vulnerable metallic materials from corrosive environments, both their interaction and in-situ formation mechanism to induce the nature-inspired composite remained less understood. The present work used three distinctive mercapto-benzazole (MB) compounds working as corrosion inhibitors, such as 2-mercaptobenzoxazole (MBO), 2-mercaptobenzothiazole (MBT), and 2-mercaptobenzimidazole (MBI) in a bid to understand how the geometrical structure arising from O, S, and N atoms affected the interaction toward inorganic layer. MB compounds that were used here to control the corrosion kinetics would be interacted readily with the pre-existing MgO layer fabricated by plasma electrolysis. This phenomenon triggered the nucleation of the root network since MB compounds were seen to be adsorbed actively on the defective surface through the active sites in MB compound. Then, the molecule with twin donor atoms adjacent to the mercapto-sites affected the facile growth of the grass-like structures with ‘uniform’ distribution via molecular self-assembly, which showed better corrosion performance than those with having dissimilar donor atoms with the inhibition efficiency (η) of 97% approximately. The formation mechanism underlying nucleation and growth behavior of MB molecule was discussed concerning the theoretical calculation of density functional theory.
尽管无机物质和有机物质的共存具有保护脆弱金属材料免受腐蚀环境侵蚀的工程潜力，但人们对它们之间的相互作用以及诱导自然启发复合材料的原位形成机制仍然知之甚少。本研究使用了三种不同的巯基苯并唑（MB）化合物作为腐蚀抑制剂，如 2-巯基苯并恶唑（MBO）、2-巯基苯并噻唑（MBT）和 2-巯基苯并咪唑（MBI），旨在了解 O、S 和 N 原子产生的几何结构如何影响与无机层的相互作用。用于控制腐蚀动力学的甲基溴化合物很容易与等离子电解法制造的原有氧化镁层发生作用。这种现象引发了根网络的成核，因为甲基溴化合物通过甲基溴化合物中的活性位点被吸附在缺陷表面上。然后，与巯基位点相邻的孪生供体原子分子通过分子自组装，促进了 "均匀 "分布的草状结构的生长，其腐蚀性能比具有不同供体原子的分子更好，抑制效率（η）约为 97%。通过密度泛函理论的理论计算，探讨了甲基溴分子成核和生长行为的形成机理。
{"title":"In-situ construction of grass-like hybrid architecture responsible for extraordinary corrosion performance: Experimental and theoretical approach","authors":"T. Suhartono , F. Hazmatulhaq , Y. Sheng , A. Chaouiki , M.P. Kamil , Y.G. Ko","doi":"10.1016/j.nanoms.2023.05.004","DOIUrl":"10.1016/j.nanoms.2023.05.004","url":null,"abstract":"<div><p>Despite the engineering potential by the co-existence of inorganic and organic substances to protect vulnerable metallic materials from corrosive environments, both their interaction and in-situ formation mechanism to induce the nature-inspired composite remained less understood. The present work used three distinctive mercapto-benzazole (MB) compounds working as corrosion inhibitors, such as 2-mercaptobenzoxazole (MBO), 2-mercaptobenzothiazole (MBT), and 2-mercaptobenzimidazole (MBI) in a bid to understand how the geometrical structure arising from O, S, and N atoms affected the interaction toward inorganic layer. MB compounds that were used here to control the corrosion kinetics would be interacted readily with the pre-existing MgO layer fabricated by plasma electrolysis. This phenomenon triggered the nucleation of the root network since MB compounds were seen to be adsorbed actively on the defective surface through the active sites in MB compound. Then, the molecule with twin donor atoms adjacent to the mercapto-sites affected the facile growth of the grass-like structures with ‘uniform’ distribution via molecular self-assembly, which showed better corrosion performance than those with having dissimilar donor atoms with the inhibition efficiency (<em>η</em>) of 97% approximately. The formation mechanism underlying nucleation and growth behavior of MB molecule was discussed concerning the theoretical calculation of density functional theory.</p></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 1","pages":"Pages 44-59"},"PeriodicalIF":9.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589965123000211/pdfft?md5=966428071f51ccbd3310671753998b0f&pid=1-s2.0-S2589965123000211-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47903060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
With an extensive range of distinctive features at nano meter-scale thicknesses, two-dimensional (2D) materials drawn the attention of the scientific community. Despite tremendous advancements in exploratory research on 2D materials, knowledge of 2D electrical transport and carrier dynamics still in its infancy. Thus, here we highlighted the electrical characteristics of 2D materials with electronic band structure, electronic transport, dielectric constant, carriers mobility. The atomic thinness of 2D materials makes substantially scaled field-effect transistors (FETs) with reduced short-channel effects conceivable, even though strong carrier mobility required for high performance, low-voltage device operations. We also discussed here about factors affecting 2D materials which easily enhanced the activity of those materials for various applications. Presently, Those 2D materials used in state-of-the-art electrical and optoelectronic devices because of the extensive nature of their electronic band structure. 2D materials offer unprecedented freedom for the design of novel p-n junction device topologies in contrast to conventional bulk semiconductors. We also, describe the numerous 2D p-n junctions, such as homo junction and hetero junction including mixed dimensional junctions. Finally, we talked about the problems and potential for the future.
{"title":"Electronic properties of 2D materials and their junctions","authors":"Taposhree Dutta , Neha Yadav , Yongling Wu , Gary J. Cheng , Xiu Liang , Seeram Ramakrishna , Aoussaj Sbai , Rajeev Gupta , Aniruddha Mondal , Zheng Hongyu , Ashish Yadav","doi":"10.1016/j.nanoms.2023.05.003","DOIUrl":"10.1016/j.nanoms.2023.05.003","url":null,"abstract":"<div><p>With an extensive range of distinctive features at nano meter-scale thicknesses, two-dimensional (2D) materials drawn the attention of the scientific community. Despite tremendous advancements in exploratory research on 2D materials, knowledge of 2D electrical transport and carrier dynamics still in its infancy. Thus, here we highlighted the electrical characteristics of 2D materials with electronic band structure, electronic transport, dielectric constant, carriers mobility. The atomic thinness of 2D materials makes substantially scaled field-effect transistors (FETs) with reduced short-channel effects conceivable, even though strong carrier mobility required for high performance, low-voltage device operations. We also discussed here about factors affecting 2D materials which easily enhanced the activity of those materials for various applications. Presently, Those 2D materials used in state-of-the-art electrical and optoelectronic devices because of the extensive nature of their electronic band structure. 2D materials offer unprecedented freedom for the design of novel p-n junction device topologies in contrast to conventional bulk semiconductors. We also, describe the numerous 2D p-n junctions, such as homo junction and hetero junction including mixed dimensional junctions. Finally, we talked about the problems and potential for the future.</p></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"6 1","pages":"Pages 1-23"},"PeriodicalIF":9.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S258996512300020X/pdfft?md5=9284b6ef1acf50a94f9eb39b4c034bd6&pid=1-s2.0-S258996512300020X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46443779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2022.09.002
Yi Yu , Zewei Liu , Xiaofei Chen , Shujun Liu , Chongxiong Duan , Hongxia Xi
The combination of nano sizes, large pore sizes and green synthesis is recognized as one of the most crucial and challenging problems in constructing metal-organic frameworks (MOFs). Herein, a water-based strategy is proposed for the synthesis of nanoscale hierarchical MOFs (NH-MOFs) with high crystallinity and excellent stability. This approach allows the morphology and porosity of MOFs to be fine tuned, thereby enabling the nanoscale crystal generation and a well-defined hierarchical system. The aqueous solution facilitates rapid nucleation kinetics, and the introduced modulator acts as a deprotonation agent to accelerate the deprotonation of the organic ligand as well as a structure-directing agent (SDA) to guide the formation of hierarchical networks. The as-synthesized NH-MOFs (NH-ZIF-67) were assessed as efficient adsorbents and heterogeneous catalysts to facilitate the diffusion of guest molecules, outperforming the parent microZIF-67. This study focuses on understanding the NH-MOF growth rules, which could allow tailor-designing NH-MOFs for various functions.
{"title":"Water-based synthesis of nanoscale hierarchical metal-organic frameworks: Boosting adsorption and catalytic performance","authors":"Yi Yu , Zewei Liu , Xiaofei Chen , Shujun Liu , Chongxiong Duan , Hongxia Xi","doi":"10.1016/j.nanoms.2022.09.002","DOIUrl":"10.1016/j.nanoms.2022.09.002","url":null,"abstract":"<div><div>The combination of nano sizes, large pore sizes and green synthesis is recognized as one of the most crucial and challenging problems in constructing metal-organic frameworks (MOFs). Herein, a water-based strategy is proposed for the synthesis of nanoscale hierarchical MOFs (NH-MOFs) with high crystallinity and excellent stability. This approach allows the morphology and porosity of MOFs to be fine tuned, thereby enabling the nanoscale crystal generation and a well-defined hierarchical system. The aqueous solution facilitates rapid nucleation kinetics, and the introduced modulator acts as a deprotonation agent to accelerate the deprotonation of the organic ligand as well as a structure-directing agent (SDA) to guide the formation of hierarchical networks. The as-synthesized NH-MOFs (NH-ZIF-67) were assessed as efficient adsorbents and heterogeneous catalysts to facilitate the diffusion of guest molecules, outperforming the parent microZIF-67. This study focuses on understanding the NH-MOF growth rules, which could allow tailor-designing NH-MOFs for various functions.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 361-368"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42545091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2022.08.003
Liwei Lin , Sumin Park , Yuri Kim , Minjun Bae , Jeongyeon Lee , Wang Zhang , Jiefeng Gao , Sun Ha Paek , Yuanzhe Piao
Wearable and stretchable strain sensors have potential values in the fields of human motion and health monitoring, flexible electronics, and soft robotic skin. The wearable and stretchable strain sensors can be directly attached to human skin, providing visualized detection for human motions and personal healthcare. Conductive polymer composites (CPC) composed of conductive fillers and flexible polymers have the advantages of high stretchability, good flexibility, superior durability, which can be used to prepare flexible strain sensors with large working strain and outstanding sensitivity. This review has put forward a comprehensive summary on the fabrication methods, advanced mechanisms and strain sensing abilities of CPC strain sensors reported in recent years, especially the sensors with superior performance. Finally, the structural design, bionic function, integration technology and further application of CPC strain sensors are prospected.
{"title":"Wearable and stretchable conductive polymer composites for strain sensors: How to design a superior one?","authors":"Liwei Lin , Sumin Park , Yuri Kim , Minjun Bae , Jeongyeon Lee , Wang Zhang , Jiefeng Gao , Sun Ha Paek , Yuanzhe Piao","doi":"10.1016/j.nanoms.2022.08.003","DOIUrl":"10.1016/j.nanoms.2022.08.003","url":null,"abstract":"<div><div>Wearable and stretchable strain sensors have potential values in the fields of human motion and health monitoring, flexible electronics, and soft robotic skin. The wearable and stretchable strain sensors can be directly attached to human skin, providing visualized detection for human motions and personal healthcare. Conductive polymer composites (CPC) composed of conductive fillers and flexible polymers have the advantages of high stretchability, good flexibility, superior durability, which can be used to prepare flexible strain sensors with large working strain and outstanding sensitivity. This review has put forward a comprehensive summary on the fabrication methods, advanced mechanisms and strain sensing abilities of CPC strain sensors reported in recent years, especially the sensors with superior performance. Finally, the structural design, bionic function, integration technology and further application of CPC strain sensors are prospected.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 392-403"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48032114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2023.02.001
Hong-Peng Li , Jie Wen , Shu-Mei Ding , Jia-Bao Ding , Zi-Hao Song , Chao Zhang , Zhen Ge , Xue Liu , Rui-Zheng Zhao , Feng-Chao Li
2D MXenes are highly attractive for fabricating high-precision gas sensors operated at room temperature (RT) due to their high surface-to-volume ratio. However, the limited selectivity and low sensitivity are still long-standing challenges for their further applications. Herein, the self-assembly of 0D–2D heterostructure for highly sensitive NO2 detection was achieved by integrating ZnO nanoparticles on Ti3C2Tx MXene-derived TiO2 nanosheets (designated as ZnO@M−TiO2). ZnO nanoparticles can not only act as spacers to prevent the restacking of M−TiO2 nanosheets and ensure effective transfer for gas molecules, but also enhance the sensitivity of the sensor the through trapping effect on electrons. Meanwhile, M−TiO2 nanosheets facilitate gas diffusion for rapid sensor response. Benefiting from the synergistic effect of individual components, the ZnO@M−TiO2 0D–2D heterostructure-based sensors revealed remarkable sensitivity and excellent selectivity to low concentration NO2 at RT. This work may facilitate the sensing application of MXene derivative and provide a new avenue for the development of high-performance gas sensors in safety assurance and environmental monitoring.
{"title":"Synergistic coupling of 0D–2D heterostructure from ZnO and Ti3C2Tx MXene-derived TiO2 for boosted NO2 detection at room temperature","authors":"Hong-Peng Li , Jie Wen , Shu-Mei Ding , Jia-Bao Ding , Zi-Hao Song , Chao Zhang , Zhen Ge , Xue Liu , Rui-Zheng Zhao , Feng-Chao Li","doi":"10.1016/j.nanoms.2023.02.001","DOIUrl":"10.1016/j.nanoms.2023.02.001","url":null,"abstract":"<div><div>2D MXenes are highly attractive for fabricating high-precision gas sensors operated at room temperature (RT) due to their high surface-to-volume ratio. However, the limited selectivity and low sensitivity are still long-standing challenges for their further applications. Herein, the self-assembly of 0D–2D heterostructure for highly sensitive NO<sub>2</sub> detection was achieved by integrating ZnO nanoparticles on Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene-derived TiO<sub>2</sub> nanosheets (designated as ZnO@M−TiO<sub>2</sub>). ZnO nanoparticles can not only act as spacers to prevent the restacking of M−TiO<sub>2</sub> nanosheets and ensure effective transfer for gas molecules, but also enhance the sensitivity of the sensor the through trapping effect on electrons. Meanwhile, M−TiO<sub>2</sub> nanosheets facilitate gas diffusion for rapid sensor response. Benefiting from the synergistic effect of individual components, the ZnO@M−TiO<sub>2</sub> 0D–2D heterostructure-based sensors revealed remarkable sensitivity and excellent selectivity to low concentration NO<sub>2</sub> at RT. This work may facilitate the sensing application of MXene derivative and provide a new avenue for the development of high-performance gas sensors in safety assurance and environmental monitoring.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 421-428"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42145549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2022.10.003
Zilian Qi , Tianwei Zhang , Xiao-Dong Zhang , Qing Xu , Kun Cao , Rong Chen
The flexible pressure sensor has been credited for leading performance including higher sensitivity, faster response/recovery, wider detection range and higher mechanical durability, thus driving the development of novel sensing materials enabled by new processing technologies. Using atomic layer infiltration, Pt nanocrystals with dimensions on the order of a few nanometers can be infiltrated into the compressible lamellar structure of Ti3C2Tx MXene, allowing a modulation of its interlayer spacing, electrical conductivity and piezoresistive property. The flexible piezoresistive sensor is further developed from the Pt-infiltrated MXene on a paper substrate. It is demonstrated that Pt infiltration leads to a significant enhancement of the pressure-sensing performance of the sensor, including increase of sensitivity from 0.08 kPa−1 to 0.5 kPa−1, extension of detection limit from 5 kPa to 9 kPa, decrease of response time from 200 ms to 20 ms, and reduction of recovery time from 230 ms to 50 ms. The mechanical durability of the flexible sensor is also improved, with the piezoresistive performance stable over 1000 cycles of flexure fatigue. The atomic layer infiltration process offers new possibilities for the structure modification of MXene for advanced sensor applications.
{"title":"MXene-based flexible pressure sensor with piezoresistive properties significantly enhanced by atomic layer infiltration","authors":"Zilian Qi , Tianwei Zhang , Xiao-Dong Zhang , Qing Xu , Kun Cao , Rong Chen","doi":"10.1016/j.nanoms.2022.10.003","DOIUrl":"10.1016/j.nanoms.2022.10.003","url":null,"abstract":"<div><div>The flexible pressure sensor has been credited for leading performance including higher sensitivity, faster response/recovery, wider detection range and higher mechanical durability, thus driving the development of novel sensing materials enabled by new processing technologies. Using atomic layer infiltration, Pt nanocrystals with dimensions on the order of a few nanometers can be infiltrated into the compressible lamellar structure of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene, allowing a modulation of its interlayer spacing, electrical conductivity and piezoresistive property. The flexible piezoresistive sensor is further developed from the Pt-infiltrated MXene on a paper substrate. It is demonstrated that Pt infiltration leads to a significant enhancement of the pressure-sensing performance of the sensor, including increase of sensitivity from 0.08 kPa<sup>−1</sup> to 0.5 kPa<sup>−1</sup>, extension of detection limit from 5 kPa to 9 kPa, decrease of response time from 200 ms to 20 ms, and reduction of recovery time from 230 ms to 50 ms. The mechanical durability of the flexible sensor is also improved, with the piezoresistive performance stable over 1000 cycles of flexure fatigue. The atomic layer infiltration process offers new possibilities for the structure modification of MXene for advanced sensor applications.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 439-446"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49549404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2023.02.002
Wanjing Zhao , Zhaoyang Wei , Chonghao Lu , Yizhang Tong , Jingshu Huang , Xianwu Cao , Dean Shi , Robert K.Y. Li , Wei Wu
Polyimide (PI) is a promising electronic packaging material, but it remains challenging to obtain an all-organic PI hybrid film with decreased dielectric constant and loss without modifying the monomer. Herein, a series of all-organic PI hybrid films were successfully prepared by introducing the covalent organic framework (COF), which could induce the formation of the cross-linking structure in the PI matrix. Due to the synergistic effects of the COF fillers and the cross-linking structure, the PI/COF hybrid film containing 2 wt% COF exhibited the lowest dielectric constant of 2.72 and the lowest dielectric loss (tan ) of 0.0077 at 1 MHz. It is attributed to the intrinsic low dielectric constant of COF and a large number of mesopores within the PI. Besides, the cross-linking network of PI prevents the molecular chains from stacking and improves the fraction of free volume (FFV). The molecular dynamics simulation results are well consistent with the dielectric properties data. Furthermore, the PI/COF hybrid film with 5 wt% COF showed a significant enhancement in breakdown strength, which increased to 412.8 kV/mm as compared with pure PI. In addition, the PI/COF hybrid film achieve to reduce the dielectric constant and thermal expansion coefficient (CTE). It also exhibited excellent thermal, hydrophobicity, and mechanical performance. The all-organic PI/COF hybrid films have great commercial potential as next-generation electronic packaging materials.
{"title":"Construction of all-organic low dielectric polyimide hybrids via synergistic effect between covalent organic framework and cross-linking structure","authors":"Wanjing Zhao , Zhaoyang Wei , Chonghao Lu , Yizhang Tong , Jingshu Huang , Xianwu Cao , Dean Shi , Robert K.Y. Li , Wei Wu","doi":"10.1016/j.nanoms.2023.02.002","DOIUrl":"10.1016/j.nanoms.2023.02.002","url":null,"abstract":"<div><div>Polyimide (PI) is a promising electronic packaging material, but it remains challenging to obtain an all-organic PI hybrid film with decreased dielectric constant and loss without modifying the monomer. Herein, a series of all-organic PI hybrid films were successfully prepared by introducing the covalent organic framework (COF), which could induce the formation of the cross-linking structure in the PI matrix. Due to the synergistic effects of the COF fillers and the cross-linking structure, the PI/COF hybrid film containing 2 wt% COF exhibited the lowest dielectric constant of 2.72 and the lowest dielectric loss (tan <span><math><mrow><mi>δ</mi></mrow></math></span>) of 0.0077 at 1 MHz. It is attributed to the intrinsic low dielectric constant of COF and a large number of mesopores within the PI. Besides, the cross-linking network of PI prevents the molecular chains from stacking and improves the fraction of free volume (FFV). The molecular dynamics simulation results are well consistent with the dielectric properties data. Furthermore, the PI/COF hybrid film with 5 wt% COF showed a significant enhancement in breakdown strength, which increased to 412.8 kV/mm as compared with pure PI. In addition, the PI/COF hybrid film achieve to reduce the dielectric constant and thermal expansion coefficient (CTE). It also exhibited excellent thermal, hydrophobicity, and mechanical performance. The all-organic PI/COF hybrid films have great commercial potential as next-generation electronic packaging materials.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 429-438"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45111092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2022.04.002
Yang Mu , Xiaoyu Pei , Yunfeng Zhao , Xueying Dong , Zongkui Kou , Miao Cui , Changgong Meng , Yifu Zhang
Rational design of oxygen evolution reaction (OER) catalysts at low cost would greatly benefit the economy. Taking advantage of earth-abundant elements Si, Co and Ni, we produce a unique-structure where cobalt-nickel silicate hydroxide [Co2.5Ni0.5Si2O5(OH)4] is vertically grown on a reduced graphene oxide (rGO) support (CNS@rGO). This is developed as a low-cost and prospective OER catalyst. Compared to cobalt or nickel silicate hydroxide@rGO (CS@rGO and NS@rGO, respectively) nanoarrays, the bimetal CNS@rGO nanoarray exhibits impressive OER performance with an overpotential of 307 mV@10 mA cm−2. This value is higher than that of CS@rGO and NS@rGO. The CNS@rGO nanoarray has an overpotential of 446 mV@100 mA cm−2, about 1.4 times that of the commercial RuO2 electrocatalyst. The achieved OER activity is superior to the state-of-the-art metal oxides/hydroxides and their derivatives. The vertically grown nanostructure and optimized metal-support electronic interactions play an indispensable role for OER performance improvement, including a fast electron transfer pathway, short proton/electron diffusion distance, more active metal centers, as well as optimized dual-atomic electron density. Taking advantage of interlay chemical regulation and the in-situ growth method, the advanced-structural CNS@rGO nanoarrays provide a new horizon to the rational and flexible design of efficient and promising OER electrocatalysts.
合理设计低成本的析氧反应(OER)催化剂将大大提高经济效益。利用地球上丰富的元素Si, Co和Ni，我们生产了一种独特的结构，将钴镍硅酸盐氢氧化物[Co2.5Ni0.5Si2O5(OH)4]垂直生长在还原氧化石墨烯(rGO)载体上(CNS@rGO)。这是一种低成本、有前景的OER催化剂。与钴或硅酸镍hydroxide@rGO(分别为CS@rGO和NS@rGO)纳米阵列相比，双金属CNS@rGO纳米阵列表现出令人印象深刻的OER性能，过电位为307 mV@10 mA cm−2。该值高于CS@rGO和NS@rGO。CNS@rGO纳米阵列的过电位为446 mV@100 mA cm−2，约为商用RuO2电催化剂的1.4倍。所获得的OER活性优于最先进的金属氧化物/氢氧化物及其衍生物。垂直生长的纳米结构和优化的金属-支撑电子相互作用对OER性能的提高起着不可或缺的作用，包括快速的电子转移途径、更短的质子/电子扩散距离、更活跃的金属中心以及优化的双原子电子密度。利用层间化学调控和原位生长的方法，先进结构的CNS@rGO纳米阵列为合理、灵活地设计高效、有前途的OER电催化剂提供了新的视野。
{"title":"In situ confined vertical growth of Co2.5Ni0.5Si2O5(OH)4 nanoarrays on rGO for an efficient oxygen evolution reaction","authors":"Yang Mu , Xiaoyu Pei , Yunfeng Zhao , Xueying Dong , Zongkui Kou , Miao Cui , Changgong Meng , Yifu Zhang","doi":"10.1016/j.nanoms.2022.04.002","DOIUrl":"10.1016/j.nanoms.2022.04.002","url":null,"abstract":"<div><div>Rational design of oxygen evolution reaction (OER) catalysts at low cost would greatly benefit the economy. Taking advantage of earth-abundant elements Si, Co and Ni, we produce a unique-structure where cobalt-nickel silicate hydroxide [Co<sub>2.5</sub>Ni<sub>0.5</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub>] is vertically grown on a reduced graphene oxide (rGO) support (CNS@rGO). This is developed as a low-cost and prospective OER catalyst. Compared to cobalt or nickel silicate hydroxide@rGO (CS@rGO and NS@rGO, respectively) nanoarrays, the bimetal CNS@rGO nanoarray exhibits impressive OER performance with an overpotential of 307 mV@10 mA cm<sup>−2</sup>. This value is higher than that of CS@rGO and NS@rGO. The CNS@rGO nanoarray has an overpotential of 446 mV@100 mA cm<sup>−2</sup>, about 1.4 times that of the commercial RuO<sub>2</sub> electrocatalyst. The achieved OER activity is superior to the state-of-the-art metal oxides/hydroxides and their derivatives. The vertically grown nanostructure and optimized metal-support electronic interactions play an indispensable role for OER performance improvement, including a fast electron transfer pathway, short proton/electron diffusion distance, more active metal centers, as well as optimized dual-atomic electron density. Taking advantage of interlay chemical regulation and the <em>in-situ</em> growth method, the advanced-structural CNS@rGO nanoarrays provide a new horizon to the rational and flexible design of efficient and promising OER electrocatalysts.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 351-360"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138495172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-01DOI: 10.1016/j.nanoms.2022.09.001
Jingxi Li , Gemeng Liang , Wei Zheng , Shilin Zhang , Kenneth Davey , Wei Kong Pang , Zaiping Guo
High-performance lithium-ion batteries (LIB) are important in powering emerging technologies. Cathodes are regarded as the bottleneck of increasing battery energy density, among which layered oxides are the most promising candidates for LIB. However, a limitation with layered oxides cathodes is the transition metal and Li site mixing, which significantly impacts battery capacity and cycling stability. Despite recent research on Li/Ni mixing, there is a lack of comprehensive understanding of the origin of cation mixing between the transition metal and Li; therefore, practical means to address it. Here, a critical review of cation mixing in layered cathodes has been provided, emphasising the understanding of cation mixing mechanisms and their impact on cathode material design. We list and compare advanced characterisation techniques to detect cation mixing in the material structure; examine methods to regulate the degree of cation mixing in layered oxides to boost battery capacity and cycling performance, and critically assess how these can be applied practically. An appraisal of future research directions, including superexchange interaction to stabilise structures and boost capacity retention has also been concluded. Findings will be of immediate benefit in the design of layered cathodes for high-performance rechargeable LIB and, therefore, of interest to researchers and manufacturers.
{"title":"Addressing cation mixing in layered structured cathodes for lithium-ion batteries: A critical review","authors":"Jingxi Li , Gemeng Liang , Wei Zheng , Shilin Zhang , Kenneth Davey , Wei Kong Pang , Zaiping Guo","doi":"10.1016/j.nanoms.2022.09.001","DOIUrl":"10.1016/j.nanoms.2022.09.001","url":null,"abstract":"<div><div>High-performance lithium-ion batteries (LIB) are important in powering emerging technologies. Cathodes are regarded as the bottleneck of increasing battery energy density, among which layered oxides are the most promising candidates for LIB. However, a limitation with layered oxides cathodes is the transition metal and Li site mixing, which significantly impacts battery capacity and cycling stability. Despite recent research on Li/Ni mixing, there is a lack of comprehensive understanding of the origin of cation mixing between the transition metal and Li; therefore, practical means to address it. Here, a critical review of cation mixing in layered cathodes has been provided, emphasising the understanding of cation mixing mechanisms and their impact on cathode material design. We list and compare advanced characterisation techniques to detect cation mixing in the material structure; examine methods to regulate the degree of cation mixing in layered oxides to boost battery capacity and cycling performance, and critically assess how these can be applied practically. An appraisal of future research directions, including superexchange interaction to stabilise structures and boost capacity retention has also been concluded. Findings will be of immediate benefit in the design of layered cathodes for high-performance rechargeable LIB and, therefore, of interest to researchers and manufacturers.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"5 4","pages":"Pages 404-420"},"PeriodicalIF":9.9,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43164861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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