Materials Futures最新文献_第7页

Concentrated electrolytes for rechargeable lithium metal batteries 可充电锂金属电池用浓缩电解质

Materials Futures Pub Date : 2022-12-18 DOI: 10.1088/2752-5724/acac68

C. Tian, Kun Qin, Liumin Suo

引用次数: 11

Symmetry-enforced two-dimensional Dirac node-line semimetals 对称强制二维狄拉克节点线半金属

Materials Futures Pub Date : 2022-12-02 DOI: 10.1088/2752-5724/aca816

P. Guo, Chen Peng, Zhengxin Liu, Kai Liu, Zhong-yi Lu

引用次数: 2

The role of grain boundaries in solid-state Li-metal batteries 晶界在固态锂金属电池中的作用

Materials Futures Pub Date : 2022-11-29 DOI: 10.1088/2752-5724/aca703

Emily Milan, M. Pasta

{"title":"The role of grain boundaries in solid-state Li-metal batteries","authors":"Emily Milan, M. Pasta","doi":"10.1088/2752-5724/aca703","DOIUrl":"https://doi.org/10.1088/2752-5724/aca703","url":null,"abstract":"Despite the potential advantages promised by solid-state batteries, the success of solid-state electrolytes has not yet been fully realised. This is due in part to the lower ionic conductivity of solid electrolytes. In many solid superionic conductors, grain boundaries are found to be ionically resistive and hence contribute to this lower ionic conductivity. Additionally, in spite of the hope that solid electrolytes would inhibit lithium filaments, in most scenarios their growth is still observed, and in some polycrystalline systems this is suggested to occur along grain boundaries. It is apparent that grain boundaries affect the performance of solid-state electrolytes, however a deeper understanding is lacking. In this perspective, the current theories relating to grain boundaries in solid-state electrolytes are explored, as well as addressing some of the challenges which arise when trying to investigate their role. Glasses are presented as a possible solution to reduce the effect of grain boundaries in electrolytes. Future research directions are suggested which will aid in both understanding the role of grain boundaries, and diminishing their contribution in cases where they are detrimental.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"1640 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132097720","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: 6

Self-assembled supramolecular materials for photocatalytic H2 production and CO2 reduction 用于光催化制氢和CO2还原的自组装超分子材料

Materials Futures Pub Date : 2022-11-16 DOI: 10.1088/2752-5724/aca346

Jia Tian, Junlai Yu, Qingxuan Tang, Jiangshan Zhang, Danying Ma, Yifei Lei, Zhanbao Li

{"title":"Self-assembled supramolecular materials for photocatalytic H2 production and CO2 reduction","authors":"Jia Tian, Junlai Yu, Qingxuan Tang, Jiangshan Zhang, Danying Ma, Yifei Lei, Zhanbao Li","doi":"10.1088/2752-5724/aca346","DOIUrl":"https://doi.org/10.1088/2752-5724/aca346","url":null,"abstract":"Photosynthetic organisms harness solar radiation to produce energy-rich compounds from water and atmospheric CO2 via exquisite supramolecular assemblies, which offers a design principle for highly efficient artificial photocatalytic systems. As an emerging research field, significant effort has been devoted to self-assembled supramolecular materials for photocatalytic H2 production and CO2 reduction. In this review, we introduce the basic concepts of supramolecular photocatalytic materials. After that, we will discuss recent advances in the preparation of supramolecular photocatalytic materials from zero-dimension to three-dimension which include molecular assemblies, micelles, hybrid nanoparticles, nanofibers, nanosheets, microcrystals, lipid bilayers, supramolecular organic frameworks, supramolecular metal-organic frameworks, gels, and host-guest metal-organic frameworks, etc. Furthermore, we show the recent progress in the photocatalytic properties of supramolecular photocatalytic materials, i.e. photocatalytic proton reduction, water splitting, CO2 to HCOOH, CO2 to CO, CO2 to CH4 conversions, etc. Finally, we provide our perspective for the future research, with a focus on the development of new structures and highly efficient photocatalysis.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123219556","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: 3

Reinforced cathode-garnet interface for high-capacity all-solid-state batteries 用于高容量全固态电池的强化阴极-石榴石界面

Materials Futures Pub Date : 2022-11-08 DOI: 10.1088/2752-5724/aca110

Chenxi Zheng, Shijun Tang, Fangmei Wen, Jinxue Peng, Wu Yang, Zhongwei Lv, Yongmin Wu, Weiping Tang, Z. Gong, Yong Yang

{"title":"Reinforced cathode-garnet interface for high-capacity all-solid-state batteries","authors":"Chenxi Zheng, Shijun Tang, Fangmei Wen, Jinxue Peng, Wu Yang, Zhongwei Lv, Yongmin Wu, Weiping Tang, Z. Gong, Yong Yang","doi":"10.1088/2752-5724/aca110","DOIUrl":"https://doi.org/10.1088/2752-5724/aca110","url":null,"abstract":"Garnet-type solid-state electrolytes (SSEs) are particularly attractive in the construction of all-solid-state lithium (Li) batteries due to their high ionic conductivity, wide electrochemical window and remarkable (electro)chemical stability. However, the intractable issues of poor cathode/garnet interface and general low cathode loading hinder their practical application. Herein, we demonstrate the construction of a reinforced cathode/garnet interface by spark plasma sintering, via co-sintering Li6.5La3Zr1.5Ta0.5O12 (LLZTO) electrolyte powder and LiCoO2/LLZTO composite cathode powder directly into a dense dual-layer with 5 wt% Li3BO3 as sintering additive. The bulk composite cathode with LiCoO2/LLZTO cross-linked structure is firmly welded to the LLZTO layer, which optimizes both Li-ion and electron transport. Therefore, the one-step integrated sintering process implements an ultra-low cathode/garnet interfacial resistance of 3.9 Ω cm2 (100 °C) and a high cathode loading up to 2.02 mAh cm−2. Moreover, the Li3BO3 reinforced LiCoO2/LLZTO interface also effectively mitigates the strain/stress of LiCoO2, which facilitates the achieving of superior cycling stability. The bulk-type Li|LLZTO|LiCoO2-LLZTO full cell with areal capacity of 0.73 mAh cm−2 delivers capacity retention of 81.7% after 50 cycles at 100 μA cm−2. Furthermore, we reveal that non-uniform Li plating/stripping leads to the formation of gaps and finally results in the separation of Li and LLZTO electrolyte during long-term cycling, which becomes the dominant capacity decay mechanism in high-capacity full cells. This work provides insight into the degradation of Li/SSE interface and a strategy to radically improve the electrochemical performance of garnet-based all-solid-state Li batteries.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128037445","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: 12

Advanced scanning probe techniques and materials research 先进扫描探针技术与材料研究

Materials Futures Pub Date : 2022-11-07 DOI: 10.1088/2752-5724/aca0ae

K. Wu, Ying Jiang

引用次数: 1

Tailoring the oxygen concentration in Ge-Sb-O alloys to enable femtojoule-level phase-change memory operations 定制Ge-Sb-O合金中的氧浓度，以实现飞焦耳级相变存储器操作

Materials Futures Pub Date : 2022-11-05 DOI: 10.1088/2752-5724/aca07b

Jiangjing Wang, Xiaozhe Wang, Yudong Cheng, Jie Tan, C. Nie, Zhe Yang, Ming Xu, Xiangshui Miao, Wei Zhang, En Ma

{"title":"Tailoring the oxygen concentration in Ge-Sb-O alloys to enable femtojoule-level phase-change memory operations","authors":"Jiangjing Wang, Xiaozhe Wang, Yudong Cheng, Jie Tan, C. Nie, Zhe Yang, Ming Xu, Xiangshui Miao, Wei Zhang, En Ma","doi":"10.1088/2752-5724/aca07b","DOIUrl":"https://doi.org/10.1088/2752-5724/aca07b","url":null,"abstract":"Chalcogenide phase-change materials (PCMs), in particular, the flagship Ge2Sb2Te5 (GST), are leading candidates for advanced memory applications. Yet, GST in conventional devices suffer from high power consumption, because the RESET operation requires melting of the crystalline GST phase. Recently, we have developed a conductive-bridge scheme for low-power phase-change application utilizing a self-decomposed Ge-Sb-O (GSO) alloy. In this work, we present thorough structural and electrical characterizations of GSO thin films by tailoring the concentration of oxygen in the phase-separating GSO system. We elucidate a two-step process in the as-deposited amorphous film upon the introduction of oxygen: with increasing oxygen doping level, germanium oxides form first, followed by antimony oxides. To enable the conductive-bridge switching mode for femtojoule-level RESET energy, the oxygen content should be sufficiently low to keep the antimony-rich domains easily crystallized under external electrical stimulus. Our work serves as a useful example to exploit alloy decomposition that develops heterogeneous PCMs, minimizing the active switching volume for low-power electronics.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114676273","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: 6

Ion transport and structural design of lithium-ion conductive solid polymer electrolytes: a perspective 锂离子导电固体聚合物电解质的离子输运与结构设计

Materials Futures Pub Date : 2022-10-28 DOI: 10.1088/2752-5724/ac9e6b

Bo Tong, Ziyu Song, Hao Wu, Xingxing Wang, Wenfang Feng, Zhibin Zhou, Heng Zhang

引用次数: 24

Facile molten salt synthesis of carbon-anchored TiN nanoparticles for durable high-rate lithium-ion battery anodes 易熔盐合成碳锚定TiN纳米颗粒用于耐用高速率锂离子电池阳极

Materials Futures Pub Date : 2022-10-24 DOI: 10.1088/2752-5724/ac9cf7

Ruijia Liu, Naichao Li, Enyue Zhao, Jinkui Zhao, Lingxu Yang, Wenjun Wang, H. Liu, C. Zeng

{"title":"Facile molten salt synthesis of carbon-anchored TiN nanoparticles for durable high-rate lithium-ion battery anodes","authors":"Ruijia Liu, Naichao Li, Enyue Zhao, Jinkui Zhao, Lingxu Yang, Wenjun Wang, H. Liu, C. Zeng","doi":"10.1088/2752-5724/ac9cf7","DOIUrl":"https://doi.org/10.1088/2752-5724/ac9cf7","url":null,"abstract":"Transition metal nitrides (TMNs), including titanium nitride (TiN), exhibit remarkable application prospects as anodes for durable high-rate lithium-ion batteries (LIBs). Regrettably, the absence of simple synthesis methods restricts their further development. Herein, a facile and low-cost molten salt synthesis strategy was proposed to prepare carbon-anchored TiN nanoparticles as an advanced anode material for LIBs with high rate capabilities. This nanosized TiN obtained is ∼5 nm in size and well-distributed onto carbon plates, which could release a reversible capacity of ∼381.5 mAh g−1 at 0.1 A g−1 after 250 cycles and ∼141.5 mAh g−1 at 1.0 A g−1 after 1000 cycles. Furthermore, it was confirmed that the conversion reaction between TiN and Li-ions happened during the electrochemical reaction process, resulting in the formation of Li3N and Ti. This unique microstructure attributed from TiN nanoparticles anchored by carbon could support the structural volume during cycling. This work highlights the method superiority of TiN prepared via a molten salt synthesis strategy as an anode for LIBs with impressive rate performances.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"119 S11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113961508","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: 11

Efficient emission of quasi-two-dimensional perovskite films cast by inkjet printing for pixel-defined matrix light-emitting diodes 喷墨打印准二维钙钛矿薄膜在像素矩阵发光二极管上的高效发射

Materials Futures Pub Date : 2022-10-19 DOI: 10.1088/2752-5724/ac9b2d

Junjie Wang, Danyang Li, Jian Wang, Junbiao Peng

{"title":"Efficient emission of quasi-two-dimensional perovskite films cast by inkjet printing for pixel-defined matrix light-emitting diodes","authors":"Junjie Wang, Danyang Li, Jian Wang, Junbiao Peng","doi":"10.1088/2752-5724/ac9b2d","DOIUrl":"https://doi.org/10.1088/2752-5724/ac9b2d","url":null,"abstract":"Quasi-two-dimensional (quasi-2D) perovskites are promising materials for potential application in light-emitting diodes (LEDs) due to their high exciton binding energy and efficient emission. However, their luminescent performance is limited by the low-n phases that act as quenching luminescence centers. Here, a novel strategy for eliminating low-n phases is proposed based on the doping of strontium bromide (SrBr2) in perovskites, in which SrBr2 is able to manipulate the growth of quasi-2D perovskites during their formation. It was reasonably inferred that SrBr2 readily dissociated strontium ions (Sr2+) in dimethyl sulfoxide solvent, and Sr2+ was preferentially adsorbed around [PbBr6]4− through strong electrostatic interaction between them, leading to a controllable growth of quasi-2D perovskites by appropriately increasing the formation energy of perovskites. It has been experimentally proved that the growth can almost completely eliminate low-n phases of quasi-2D perovskite films, which exhibited remarkably enhanced photoluminescence. A high electroluminescent efficiency matrix green quasi-2D perovskite-LED (PeLED) with a pixel density of 120 pixels per inch fabricated by inkjet printing technique was achieved, exhibiting a peak external quantum efficiency of 13.9%, which is the most efficient matrix green quasi-2D PeLED so far to our knowledge.","PeriodicalId":221966,"journal":{"name":"Materials Futures","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131917063","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: 3