SmartMat最新文献_第9页

Compacted mesoporous titania nanosheets anode for pseudocapacitance‐dominated, high‐rate, and high‐volumetric sodium‐ion storage 紧凑的介孔二氧化钛纳米片阳极用于假电容主导，高速率和高容量的钠离子存储

SmartMat Pub Date : 2023-03-10 DOI: 10.1002/smm2.1192

Jiayu Yu, Xiaojuan Huang, Yalin He, Dafu Tang, Ting Huang, Lu Liu, Haobin Wu, D. Peng, Dongyuan Zhao, Kun Lan, Qiulong Wei

{"title":"Compacted mesoporous titania nanosheets anode for pseudocapacitance‐dominated, high‐rate, and high‐volumetric sodium‐ion storage","authors":"Jiayu Yu, Xiaojuan Huang, Yalin He, Dafu Tang, Ting Huang, Lu Liu, Haobin Wu, D. Peng, Dongyuan Zhao, Kun Lan, Qiulong Wei","doi":"10.1002/smm2.1192","DOIUrl":"https://doi.org/10.1002/smm2.1192","url":null,"abstract":"Surface‐redox pseudocapacitive nanomaterials show promise for fast‐charging energy storage. However, their high surface area usually leads to low density, which is not conducive to achieving both high volumetric capacity and high‐rate capability. Herein, we demonstrate that TiO2 nanosheets (meso‐TiO2‐NSs) with densely packed mesoporous are capable of fast pseudocapacitance‐dominated sodium‐ion storage, as well as high volumetric and gravimetric capacities. Through compressing treatment, the compaction density of meso‐TiO2‐NSs is up to ~1.6 g/cm3, combined with high surface area and high porosity with mesopore channels for rapid Na+ diffusion. The compacted meso‐TiO2‐NSs electrodes achieve high pseudocapacitance (93.6% of total charge at 1 mV/s), high‐rate capability (up to 10 A/g), and long‐term cycling stability (10,000 cycles). More importantly, the space‐efficiently packed structure enables high volumetric capacity. The thick‐film meso‐TiO2‐NSs anode with the mass loading of 10 mg/cm2 delivers a gravimetric capacity of 165 mAh/g and a volumetric capacity of 223 mAh/cm3 at 5 mA/cm2, much higher than those of commercial hard carbon anode (80 mAh/g and 86 mAh/cm3). This work highlights a pathway for designing a dense nanostructure that enables fast charge kinetics for high‐density sodium‐ion storage.","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83529503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Rebirth of CuInS 2 as hole transport material for perovskite solar cells 钙钛矿太阳能电池空穴输运材料CuInS 2的再生

SmartMat Pub Date : 2023-03-10 DOI: 10.1002/smm2.1195

R. Ahmed

引用次数: 1

Materials and structural design for preferable Zn deposition behavior toward stable Zn anodes 制备稳定锌阳极的材料及结构设计

SmartMat Pub Date : 2023-03-08 DOI: 10.1002/smm2.1194

Qinghe Cao, Yong Gao, Jie Pu, Abdelnaby M. Elshahawy, C. Guan

引用次数: 2

Single‐precursor phase‐controlled synthesis of copper selenide nanocrystals and their conversion to amorphous hollow nanostructures 单前驱体控制的硒化铜纳米晶的合成及其向非晶中空纳米结构的转化

SmartMat Pub Date : 2023-03-03 DOI: 10.1002/smm2.1193

Feifan Chen, Yadong Zhang, Lijun Hu, Lifang Zheng, Feiyue Ge, Changsheng Feng, Dan-tong Xu, Ch Tao, Xuejun Wu

{"title":"Single‐precursor phase‐controlled synthesis of copper selenide nanocrystals and their conversion to amorphous hollow nanostructures","authors":"Feifan Chen, Yadong Zhang, Lijun Hu, Lifang Zheng, Feiyue Ge, Changsheng Feng, Dan-tong Xu, Ch Tao, Xuejun Wu","doi":"10.1002/smm2.1193","DOIUrl":"https://doi.org/10.1002/smm2.1193","url":null,"abstract":"The crystal phases are essential to the physicochemical properties and functionalities of materials. Copper selenide has emerged as an important and appealing semiconductor, which can exist in a variety of polymorphic phases. However, the richness of polymorphs also makes it a challenge to the direct preparation of copper selenide nanocrystals with tunable phases. Herein, two polymorphs, that is, quasi‐tetragonal Cu2−xSe nanocubes and metastable wurtzite Cu2Se nanodisks, are successfully synthesized by using a single precursor, copper(I) selenocyanate (CuSeCN), as the Cu and Se sources. The key to phase modulation is the optimal choice of the ligand in the synthesis. The as‐prepared nanocrystals possess different morphologies and compositions, giving rise to distinct optical properties and electrical conductivities. Interestingly, the copper selenide nanocrystals can provide a platform for the rational construction of two types of amorphous hollow Au─Cu─Se nanostructures by reaction with Au(I) precursor, in which their final shapes are well kept as that of the original nanocrystal templates. This work provides an easy strategy for the phase‐controlled synthesis of copper selenide nanocrystals and enables the design of new materials for broad applications.","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90178061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

High‐power and low‐cost sodium‐ion batteries with a wide operation temperature from −70 °C to 130 °C 高功率和低成本的钠离子电池，工作温度从- 70°C到130°C

SmartMat Pub Date : 2023-02-27 DOI: 10.1002/smm2.1191

Zhi Li, Yu Zhang, Yonggang Wang

引用次数: 0

Synergistic fluorescent hydrogel actuators with selective spatial shape/color‐changing behaviors via interfacial supramolecular assembly 通过界面超分子组装具有选择性空间形状/颜色变化行为的协同荧光水凝胶致动器

SmartMat Pub Date : 2023-02-24 DOI: 10.1002/smm2.1190

Wei Lu, Ruijia Wang, Muqing Si, Yi Zhang, Shuangshuang Wu, Ning Zhu, Wenqin Wang, Tao Chen

引用次数: 0

Rapid laser synthesis of surfactantless tantalum‐based nanomaterials as bifunctional catalysts for direct peroxide–peroxide fuel cells 激光快速合成无表面活性剂钽基纳米材料作为直接过氧化氢燃料电池的双功能催化剂

SmartMat Pub Date : 2023-02-24 DOI: 10.1002/smm2.1181

X. Mo, Brigitte Bouchet Fabre, N. Herlin‐Boime, Edmund C. M. Tse

引用次数: 0

Recent developments in artificial spider silk and functional gel fibers 人造蜘蛛丝和功能性凝胶纤维的最新进展

SmartMat Pub Date : 2023-02-24 DOI: 10.1002/smm2.1189

Abdul Qadeer Khan, Muhammad Shafiq, Jiatian Li, Kaiqing Yu, Zunfeng Liu, Xiang Zhou, Meifang Zhu

引用次数: 4

Dynamic polymeric materials based on reversible B–O bonds with dative boron–nitrogen coordination 基于硼氮配位可逆B-O键的动态高分子材料

SmartMat Pub Date : 2023-02-21 DOI: 10.1002/smm2.1187

Zi‐Han Zhao, Cheng‐Hui Li, J. Zuo

{"title":"Dynamic polymeric materials based on reversible B–O bonds with dative boron–nitrogen coordination","authors":"Zi‐Han Zhao, Cheng‐Hui Li, J. Zuo","doi":"10.1002/smm2.1187","DOIUrl":"https://doi.org/10.1002/smm2.1187","url":null,"abstract":"To minimize the environmental pollution caused by polymeric waste, materials based dynamic chemistry have attracted extensive attention around the world. Various dynamic covalent bonds or noncovalent interactions have been employed to design multifunctional polymers with recyclability, reprocessablility, and sustainability. Among them, polymers based on reversible boron–oxygen (B–O) bonds have been widely investigated because of their unique properties. Particularly, lots of scientists have demonstrated that the combination with boron–nitrogen (B–N) coordination can effectively accelerate the dynamicity as well as enhance the stability of B–O bonds. Therefore, numerous polymers containing dynamic B–O bonds with dative B–N coordination have been designed and synthesized in recent years. These polymers exhibit excellent versatility and great potential for diverse applications such as biosensors, battery electrolytes, and artificial skins. This review provides an overview of the comprehensive influence of dynamic B–N coordination chemistry on B–O bonds in organoboron species and highlights the developments in the area of constructing boron‐containing polymeric materials with this interesting linkage. The design guidelines, existing challenges, and future perspectives in this burgeoning field are discussed and proposed.","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82393696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Van der Waals plug‐and‐probe approach 一种范德华塞-探针方法

SmartMat Pub Date : 2023-02-21 DOI: 10.1002/smm2.1180

Tiantian Zhou, Deyang Ji

引用次数: 0