SusMat最新文献 - Book学术

Low dielectric constant and highly intrinsic thermal conductivity fluorine‐containing epoxy resins with ordered liquid crystal structures 具有有序液晶结构的低介电常数和高固有导热性含氟环氧树脂

IF 28.4 1区材料科学

SusMat Pub Date : 2023-12-07 DOI: 10.1002/sus2.172

Xuerong Fan, Zheng Liu, Shuangshuang Wang, Junwei Gu

{"title":"Low dielectric constant and highly intrinsic thermal conductivity fluorine‐containing epoxy resins with ordered liquid crystal structures","authors":"Xuerong Fan, Zheng Liu, Shuangshuang Wang, Junwei Gu","doi":"10.1002/sus2.172","DOIUrl":"https://doi.org/10.1002/sus2.172","url":null,"abstract":"Epoxy resins with a high dielectric constant and low intrinsic thermal conductivity coefficient cannot meet the current application requirements of advanced electronic and electrical equipment. Therefore, novel fluorine‐containing liquid crystal epoxy compounds (TFSAEy) with fluorinated groups, biphenyl units, and flexible alkyl chains are first synthesized via amidation and esterification reactions. Then, 4,4′‐diaminodiphenylmethane (DDM) is used as a curing agent to prepare the corresponding fluorine‐containing liquid crystal epoxy resins. The obtained dielectric constant (ε) and dielectric loss (tan δ) values of TFSAEy/DDM at 1 MHz are 2.54 and 0.025, respectively, which are significantly lower than those of conventional epoxy resins (E‐51/DDM, 3.52 and 0.038). Additionally, the intrinsic thermal conductivity coefficient (λ) of TFSAEy/DDM is 0.36 W/(m·K), 71.4% higher than that of E‐51/DDM (0.21 W/(m·K)). Meanwhile, the corresponding elastic modulus, hardness, glass transition temperature, and heat resistance index of TFSAEy/DDM are 5.73 GPa, 0.35 GPa, 213.5°C, and 188.7°C, respectively, all superior to those of E‐51/DDM (3.68 GPa, 0.27 GPa, 107.2°C, and 174.8°C), presenting potential application in high‐heating electronic component packaging and printed circuit boards.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"24 7","pages":""},"PeriodicalIF":28.4,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Toward effective electrocatalytic C–N coupling for the synthesis of organic nitrogenous compounds using CO2 and biomass as carbon sources 利用二氧化碳和生物质作为碳源，实现有效的电催化 C-N 偶联以合成有机含氮化合物

IF 28.4 1区材料科学

SusMat Pub Date : 2023-12-01 DOI: 10.1002/sus2.175

Hao Jiang, Xu Wu, Heng Zhang, Qiong Yan, Hui Li, Tianyi Ma, Song Yang

{"title":"Toward effective electrocatalytic C–N coupling for the synthesis of organic nitrogenous compounds using CO2 and biomass as carbon sources","authors":"Hao Jiang, Xu Wu, Heng Zhang, Qiong Yan, Hui Li, Tianyi Ma, Song Yang","doi":"10.1002/sus2.175","DOIUrl":"https://doi.org/10.1002/sus2.175","url":null,"abstract":"Thermochemical conversion of fossil resources into fuels, chemicals, and materials has rapidly increased atmospheric CO2 levels, hindering global efforts toward achieving carbon neutrality. With the increasing push for sustainability, utilizing electrochemical technology to transform CO2 or biomass into value‐added chemicals and to close the carbon cycle with sustainable energy sources represents a promising strategy. Expanding the scope of electrosynthesis technology is a prerequisite for the electrification of chemical manufacturing. To this end, constructing the C─N bond is considered a priority. However, a systematic review of electrocatalytic processes toward building C─N bonds using CO2 and biomass as carbon sources is not available. Accordingly, this review highlights the research progress in the electrosynthesis of organic nitrogen compounds from CO2 and biomass by C─N coupling reactions in view of catalytic materials, focusing on the enlightenment of traditional catalysis on C─N coupling and the understanding of the basis of electrochemical C─N coupling. The possibility of C─N bond in electrocatalysis is also examined from the standpoints of activation of substrates, coupling site, mechanism, and inhibition of hydrogen evolution reaction (HER). Finally, the challenges and prospects of electrocatalytic C─N coupling reactions with improved efficiency and selectivity for future development are discussed.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"37 24","pages":"781 - 820"},"PeriodicalIF":28.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139017880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 1

Modulating CsPbl3 crystallization by using diammonium agent for efficient solar cells 使用二铵剂调节 CsPbl3 结晶，实现高效太阳能电池

IF 28.4 1区材料科学

SusMat Pub Date : 2023-12-01 DOI: 10.1002/sus2.173

Junming Qiu, Qisen Zhou, Mei Yu, Jianhua Liu, Rongshan Zhuang, Yong Hua, Liming Ding, Xiaoliang Zhang

{"title":"Modulating CsPbl3 crystallization by using diammonium agent for efficient solar cells","authors":"Junming Qiu, Qisen Zhou, Mei Yu, Jianhua Liu, Rongshan Zhuang, Yong Hua, Liming Ding, Xiaoliang Zhang","doi":"10.1002/sus2.173","DOIUrl":"https://doi.org/10.1002/sus2.173","url":null,"abstract":"Cesium lead triiodide (CsPbI3) perovskite receives tremendous attention for photovoltaic applications, owing to its remarkable thermal stability and optoelectronic properties. However, realizing the CsPbI3 perovskite with high black‐phase stability and optoelectronic properties remains a significant challenge, which largely affects the photovoltaic performance of perovskite solar cells (PSCs). Herein, aromatic ammonium agents are used to modulate the crystallization of the CsPbI3 perovskite to improve its black‐phase stability and optoelectronic properties for efficient PSCs. Systemically experimental studies and comprehensively theoretical calculations are performed, which reveal that histammonium dihydrochloride (HACl2) could strongly couple with the perovskite during its crystallization, leading to faster nucleation and slower perovskite growth, and thus modulating the crystallization dynamics of the perovskites. Moreover, the residual diammonium cations (HA2+) distributed at the grain boundaries and on the surface of the perovskites can effectively passivate defects through electrostatic interactions, substantially suppressing trap‐assisted nonradiative recombination, and prompting more matched perovskite surface energetics. Consequently, the photovoltaic performance of CsPbI3 PSCs is largely improved because of a combination of enhanced crystallinity and optoelectronic properties of the perovskites. This work offers a new avenue to prepare inorganic perovskites with high optoelectronic properties for photovoltaics.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"64 7","pages":"894 - 908"},"PeriodicalIF":28.4,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139013439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The design and synthesis of Prussian blue analogs as a sustainable cathode for sodium‐ion batteries 设计和合成普鲁士蓝类似物作为钠离子电池的可持续阴极

IF 28.4 1区材料科学

SusMat Pub Date : 2023-12-01 DOI: 10.1002/sus2.170

Siwei Fan, Yijie Liu, Yun Gao, Yang Liu, Yun Qiao, Li Li, Shu‐Lei Chou

引用次数: 0

Dimensional engineering of covalent organic frameworks derived carbons for electrocatalytic carbon dioxide reduction 用于电催化二氧化碳还原的共价有机框架衍生碳的尺寸工程

1区材料科学

SusMat Pub Date : 2023-11-09 DOI: 10.1002/sus2.167

Guojuan Liu, Xuewen Li, Minghao Liu, Xiubei Yang, Zhuangyan Guo, Xinqing Chen, Qing Xu, Gaofeng Zeng, Yue He

{"title":"Dimensional engineering of covalent organic frameworks derived carbons for electrocatalytic carbon dioxide reduction","authors":"Guojuan Liu, Xuewen Li, Minghao Liu, Xiubei Yang, Zhuangyan Guo, Xinqing Chen, Qing Xu, Gaofeng Zeng, Yue He","doi":"10.1002/sus2.167","DOIUrl":"https://doi.org/10.1002/sus2.167","url":null,"abstract":"Abstract Covalent organic frameworks (COFs) have been developed as the precursors to construct porous carbons for electrocatalytic systems. However, the influences of carbon dimensions on the catalytic performance are still underexplored. In this work, we have first constructed COF‐derived carbons by template‐synthesis strategy in different dimensions to catalyze the carbon dioxide reduction (CO 2 RR). By using different templates, the one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) COF‐derived carbons have been employed to anchor Co‐porphyrin to form the Co‐N 5 sites to catalyze CO 2 RR. The 1D catalyst templated by carbon nano tubes presents high binding ability of CO 2 , more defective sites, and higher electronic conductivity, resulting in a higher catalytic activity for CO 2 and selectivity of CO than 2D and 3D carbon‐based catalysts. The 1D catalyst delivers the turnover frequency values of 1150 h −1 and the FECO of 94.5% at 0.7 V versus RHE, which is significantly better than those of 2D and 3D carbon‐based catalysts.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":" 37","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135292237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tungsten oxide‐anchored Ru clusters with electron‐rich and anti‐corrosive microenvironments for efficient and robust seawater splitting 具有富电子和抗腐蚀微环境的氧化钨锚定Ru团簇，用于高效和强大的海水分裂

1区材料科学

SusMat Pub Date : 2023-10-19 DOI: 10.1002/sus2.164

Yiming Zhang, Weiqiong Zheng, Huijuan Wu, Ran Zhu, Yinghan Wang, Mao Wang, Tian Ma, Chong Cheng, Zhiyuan Zeng, Shuang Li

{"title":"Tungsten oxide‐anchored Ru clusters with electron‐rich and anti‐corrosive microenvironments for efficient and robust seawater splitting","authors":"Yiming Zhang, Weiqiong Zheng, Huijuan Wu, Ran Zhu, Yinghan Wang, Mao Wang, Tian Ma, Chong Cheng, Zhiyuan Zeng, Shuang Li","doi":"10.1002/sus2.164","DOIUrl":"https://doi.org/10.1002/sus2.164","url":null,"abstract":"Abstract Ruthenium (Ru) has been recognized as a prospective candidate to substitute platinum catalysts in water‐splitting‐based hydrogen production. However, minimizing the Ru contents, optimizing the water dissociation energy of Ru sites, and enhancing the long‐term stability are extremely required, but still face a great challenge. Here, we report on creating tungsten oxide‐anchored Ru clusters (Ru–WO x ) with electron‐rich and anti‐corrosive microenvironments for efficient and robust seawater splitting. Benefiting from the abundant oxygen vacancy structure in tungsten oxide support, the Ru–WO x exhibits strong Ru–O and Ru–W bonds at the interface. Our study elucidates that the strong Ru–O bonds in Ru–WO x may accelerate the water dissociation kinetics, and the Ru–W bonds will lead to the strong metal–support interaction and electrons transfer from W to Ru. The optimal Ru–WO x catalysts exhibit a low overpotential of 29 and 218 mV at the current density of 10 mA cm −2 in alkaline and seawater media, respectively. The outstanding long‐term stability discloses that the Ru–WO x catalysts own efficient corrosion resistance in seawater electrolysis. We believe that this work offers new insights into the essential roles of electron‐rich and anti‐corrosive microenvironments in Ru‐based catalysts and provide a new pathway to design efficient and robust cathodes for seawater splitting.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135778868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Synthesis of stable iodoplumbate and perovskite for efficient annealing‐free device and long‐term storage 合成稳定的碘铅酸盐和钙钛矿，用于高效的免退火器件和长期储存

1区材料科学

SusMat Pub Date : 2023-10-17 DOI: 10.1002/sus2.163

Jihyun Kim, Sang‐Won Park, Younghyun Lee, Hideo Hosono, Byungwoo Park, Jinhyun Kim

{"title":"Synthesis of stable iodoplumbate and perovskite for efficient annealing‐free device and long‐term storage","authors":"Jihyun Kim, Sang‐Won Park, Younghyun Lee, Hideo Hosono, Byungwoo Park, Jinhyun Kim","doi":"10.1002/sus2.163","DOIUrl":"https://doi.org/10.1002/sus2.163","url":null,"abstract":"As a next‐generation photovoltaic device, perovskite solar cells are rapidly emerging. Nevertheless, both solution and device stability pose challenges for commercialization due to chemical degradation caused by internal and external factors. Especially, the decomposition of iodoplumbate in a perovskite solution hinders the long‐term use of perovskite solutions. Moreover, the synthesis of stable perovskites at low temperature is important for stable devices and wide applications (flexible devices and high reproducibility). Herein, the critical composition of perovskite is found to obtain high stabilities of both iodoplumbate and perovskite crystals by utilizing CsPbBr3 and FAPbI3, exhibiting high device performance and long‐term solution storage. The novel composition of CsPbBr3‐alloyed FAPbI3 not only crystallizes under annealing‐free conditions but also demonstrates excellent iodoplumbate stability for 100 days (∼3000 h) without any degradation. Furthermore, high device stabilities are achieved over 2000 and 3000 h under extreme conditions of A.M. 1.5 and 85°C/85% relative humidity, respectively. Overall, the device exhibited a high power conversion efficiency of 23.4%, and furthermore, CsPbBr3‐alloyed FAPbI3 was devoted to widen the applications in both flexible and carbon‐electrode devices, thereby addressing both scientific depths and potential commercial materials.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136037920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A new method to determine composition of sphalerite without secondary pollution based on CIELAB color space 基于CIELAB色彩空间的无二次污染闪锌矿成分测定新方法

1区材料科学

SusMat Pub Date : 2023-10-01 DOI: 10.1002/sus2.161

Yong Liu, Ning Duan, Linhua Jiang, Hongping He, Han Cheng, Jiaqi Liao, Yanli Xu, Wen Cheng, Ying Chen, Guangbin Zhu, Fuyuan Xu

{"title":"A new method to determine composition of sphalerite without secondary pollution based on CIELAB color space","authors":"Yong Liu, Ning Duan, Linhua Jiang, Hongping He, Han Cheng, Jiaqi Liao, Yanli Xu, Wen Cheng, Ying Chen, Guangbin Zhu, Fuyuan Xu","doi":"10.1002/sus2.161","DOIUrl":"https://doi.org/10.1002/sus2.161","url":null,"abstract":"Abstract Currently, most of the methods for mineral materials analysis generate secondary pollution, which is detrimental to human health. For instance, traditional methods for sphalerite analysis in the zinc (Zn) smelting industry including chemical titration, atomic absorption spectrometry, and inductively coupled atomic emission spectroscopy. Colored indicators and toxic heavy metals are used in the analytical processes, causing severe pollution. For some methods, liquid is transformed into gaseous plasma, which is more dangerous to human health. Due to large quantities of sphalerite being used, secondary pollution cannot be ignored. This study proposes a green analysis method for the detection of sphalerite based on colorimetry, which does not generate secondary pollution. The results show that the strong substitution ability of iron (Fe) for Zn contributes to their inverse correlation in contents. The lattice parameters decrease with the increasing Fe content, resulting in a darker coloration. Here, key colorimetry parameters of L*, a*, and b* show clear linear correlations with the Zn and Fe contents. Compared with traditional approaches, this new method is environmental friendly with high sensitivity and accuracy. The relative error and relative standard deviation were less than 10% and 5%, respectively. This study provides a significant reference for nonpollution determination of other mineral materials.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135606037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The effect of volume change and stack pressure on solid‐state battery cathodes 体积变化和堆压对固态电池阴极的影响

1区材料科学

SusMat Pub Date : 2023-10-01 DOI: 10.1002/sus2.162

Boyang Liu, Shengda D. Pu, Christopher Doerrer, Dominic Spencer Jolly, Robert A. House, Dominic L. R. Melvin, Paul Adamson, Patrick S. Grant, Xiangwen Gao, Peter G. Bruce

{"title":"The effect of volume change and stack pressure on solid‐state battery cathodes","authors":"Boyang Liu, Shengda D. Pu, Christopher Doerrer, Dominic Spencer Jolly, Robert A. House, Dominic L. R. Melvin, Paul Adamson, Patrick S. Grant, Xiangwen Gao, Peter G. Bruce","doi":"10.1002/sus2.162","DOIUrl":"https://doi.org/10.1002/sus2.162","url":null,"abstract":"Abstract Solid‐state lithium batteries may provide increased energy density and improved safety compared with Li‐ion technology. However, in a solid‐state composite cathode, mechanical degradation due to repeated cathode volume changes during cycling may occur, which may be partially mitigated by applying a significant, but often impractical, uniaxial stack pressure. Herein, we compare the behavior of composite electrodes based on Li 4 Ti 5 O 12 (LTO) (negligible volume change) and Nb 2 O 5 (+4% expansion) cycled at different stack pressures. The initial LTO capacity and retention are not affected by pressure but for Nb 2 O 5 , they are significantly lower when a stack pressure of <2 MPa is applied, due to inter‐particle cracking and solid‐solid contact loss because of cyclic volume changes. This work confirms the importance of cathode mechanical stability and the stack pressures for long‐term cyclability for solid‐state batteries. This suggests that low volume‐change cathode materials or a proper buffer layer are required for solid‐state batteries, especially at low stack pressures.","PeriodicalId":29781,"journal":{"name":"SusMat","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135661838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Recent Progress in Melt Pyrolysis: Fabrication and Applications of High‐Value Carbon Materials from Abundant Sources 熔融热解的最新进展:高价值碳材料的制备与应用

1区材料科学

SusMat Pub Date : 2023-10-01 DOI: 10.1002/sus2.165

Kuikui Zhang, Zeai Huang, Mingkai Yang, Mengying Liu, Yunxiao Zhou, Junjie Zhan, Ying Zhou

引用次数: 0