Jiayu Yu, Xiaojuan Huang, Yalin He, Dafu Tang, Ting Huang, Lu Liu, Haobin Wu, D. Peng, Dongyuan Zhao, Kun Lan, Qiulong Wei
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.
{"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":null,"pages":null},"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}
{"title":"Rebirth of CuInS\u0000 2\u0000 as hole transport material for perovskite solar cells","authors":"R. Ahmed","doi":"10.1002/smm2.1195","DOIUrl":"https://doi.org/10.1002/smm2.1195","url":null,"abstract":"","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79891116","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}
Qinghe Cao, Yong Gao, Jie Pu, Abdelnaby M. Elshahawy, C. Guan
{"title":"Materials and structural design for preferable Zn deposition behavior toward stable Zn anodes","authors":"Qinghe Cao, Yong Gao, Jie Pu, Abdelnaby M. Elshahawy, C. Guan","doi":"10.1002/smm2.1194","DOIUrl":"https://doi.org/10.1002/smm2.1194","url":null,"abstract":"","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74842191","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}
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.
{"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":null,"pages":null},"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}
Low‐cost sodium‐ion batteries (SIBs) are promising candidates for grid‐scale energy‐storage systems, and the wide‐temperature operations of SIBs are highly demanded to accommodate extreme weather. Herein, a low‐cost SIB is fabricated with a Na4Fe3(PO4)2P2O7 (NFPP) cathode, a natural graphite (NG) anode, and an ether‐based electrolyte. The prepared NG//NFPP batteries deliver a long lifespan of 1000 cycles, high‐power density of 5938 W/kg, and remarkable rate performance of 10 A/g with a high capacity retention of 60%. Benefiting from the solvent co‐intercalation process of the NG anode and the high Na+ diffusion rate of the NFPP cathode, the NG//NFPP battery displays outstanding performance at −40 °C and even can work at an ultralow temperature of −70 °C. Furthermore, the high boiling point of the electrolytes and high thermal stability of the electrode materials also enable the high‐temperature operation of the full battery up to 130 °C. This work will guide the design of the wide‐temperature SIBs.
低成本钠离子电池(sib)是电网规模储能系统的有前途的候选者，并且sib的宽温度运行被高度要求以适应极端天气。本文采用Na4Fe3(PO4)2P2O7 (NFPP)阴极、天然石墨(NG)阳极和醚基电解质制备了低成本SIB。制备的NG//NFPP电池具有1000次循环的长寿命，5938 W/kg的高功率密度，10 a /g的卓越倍率性能和60%的高容量保留率。得益于NG阳极的溶剂共插过程和NFPP阴极的高Na+扩散速率，NG//NFPP电池在- 40°C下表现出优异的性能，甚至可以在- 70°C的超低温下工作。此外，电解质的高沸点和电极材料的高热稳定性也使全电池的高温运行达到130°C。这项工作将指导宽温度sib的设计。
{"title":"High‐power and low‐cost sodium‐ion batteries with a wide operation temperature from −70 °C to 130 °C","authors":"Zhi Li, Yu Zhang, Yonggang Wang","doi":"10.1002/smm2.1191","DOIUrl":"https://doi.org/10.1002/smm2.1191","url":null,"abstract":"Low‐cost sodium‐ion batteries (SIBs) are promising candidates for grid‐scale energy‐storage systems, and the wide‐temperature operations of SIBs are highly demanded to accommodate extreme weather. Herein, a low‐cost SIB is fabricated with a Na4Fe3(PO4)2P2O7 (NFPP) cathode, a natural graphite (NG) anode, and an ether‐based electrolyte. The prepared NG//NFPP batteries deliver a long lifespan of 1000 cycles, high‐power density of 5938 W/kg, and remarkable rate performance of 10 A/g with a high capacity retention of 60%. Benefiting from the solvent co‐intercalation process of the NG anode and the high Na+ diffusion rate of the NFPP cathode, the NG//NFPP battery displays outstanding performance at −40 °C and even can work at an ultralow temperature of −70 °C. Furthermore, the high boiling point of the electrolytes and high thermal stability of the electrode materials also enable the high‐temperature operation of the full battery up to 130 °C. This work will guide the design of the wide‐temperature SIBs.","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77114809","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}
X. Mo, Brigitte Bouchet Fabre, N. Herlin‐Boime, Edmund C. M. Tse
{"title":"Rapid laser synthesis of surfactantless tantalum‐based nanomaterials as bifunctional catalysts for direct peroxide–peroxide fuel cells","authors":"X. Mo, Brigitte Bouchet Fabre, N. Herlin‐Boime, Edmund C. M. Tse","doi":"10.1002/smm2.1181","DOIUrl":"https://doi.org/10.1002/smm2.1181","url":null,"abstract":"","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91529376","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}
Abdul Qadeer Khan, Muhammad Shafiq, Jiatian Li, Kaiqing Yu, Zunfeng Liu, Xiang Zhou, Meifang Zhu
{"title":"Recent developments in artificial spider silk and functional gel fibers","authors":"Abdul Qadeer Khan, Muhammad Shafiq, Jiatian Li, Kaiqing Yu, Zunfeng Liu, Xiang Zhou, Meifang Zhu","doi":"10.1002/smm2.1189","DOIUrl":"https://doi.org/10.1002/smm2.1189","url":null,"abstract":"","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73851803","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}
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.
{"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":null,"pages":null},"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}
{"title":"A Van der Waals plug‐and‐probe approach","authors":"Tiantian Zhou, Deyang Ji","doi":"10.1002/smm2.1180","DOIUrl":"https://doi.org/10.1002/smm2.1180","url":null,"abstract":"","PeriodicalId":21794,"journal":{"name":"SmartMat","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85180937","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}
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