Nano Research’s Post

Excited to share our latest publication: Optimisation of a P3 Phase with Superior High Voltage Reversibility, now available https://lnkd.in/eREPj3kP In this study, we investigate the effect of Zn and Ti substitution in P3-type sodium layered oxide cathode materials, focusing on how these influence anion redox reversibility. This research was made possible through fantastic collaboration, and I want to express my gratidute to my co-authors and collaborators for their invaluable contributions. Yongseok Choi, Yingling Liao, Ioanna Maria Pateli, Aaron Naden, John Irvine, Robert House, David Scanlon, Rob Armstrong The Faraday Institution

#polymers #porousmaterials #batteries Developing porous polymeric structures for membrane and separator applications is nowadays considered a crucial task. By combining two techniques for the creation of porous polymeric materials, we were able to create a highly crystalline porous shish-kebab structure for the first time. This structure is based on orientated ultrahigh molecular weight polyethylene (UHMWPE) films with a high degree of crystallinity. The use of supercritical carbon dioxide (scCO2) provided special conditions for the crystallization of dissolved UHMWPE macromolecules on the surface of oriented UHMWPE crystals. Controlling the conditions for the crystallization of the UHMWPE macromolecules using supercritical CO2 gives the possibility to control the size of both lamellar disks and pores formed. https://lnkd.in/ePbnp-pz

Péter Csvila and Tibor Czigány presented their review on ’Multifunctional energy storage polymer composites: The role of nanoparticles in the performance of structural supercapacitors' in the latest issue (Vol. 18, No. 10, pp. 1023-1038). https://lnkd.in/dPmiNYtK #structuralsupercapacitor #electricdoublelayercapacitor #carbonbasednanoparticle #metalbasednanoparticle #structuralelectrode #solidelectrolyte

Electrocaloric effect in polymers can be sensitive to interfaces at the molecular scale. https://lnkd.in/gWgm6AGC

To understand the ionic transport of lithium cation is the foundation for molecular design for artificial interphase and polymer electrolytes.

【Electrochemical Studies on Photoactive Thin Solid Films of Poly (2-(2-Thienyl) Furan) Occluded with a g-C3N4/SiC Mixture in Gel Electrolyte】 Full article: https://lnkd.in/gx3w-dB6 (Authored by Kasem K. Kasem and Joe Russeau, from Indiana University Kokomo, USA.) The proven photocatalytic capabilities of graphite carbon nitride g-C3N4 or (CN) for hydrogen evolution in aqueous electrolytes under visible light irradiation attracted the attention of many research efforts. SiC is a typical non-metallic #semiconductor with some photocatalytic activities with good physicochemical stability. This study focuses on evaluating the photoelectrochemical (PEC) responses of a ternary system composed of SiC, CN, and PTF (as conjugated organic polymer) in assembly (CN/SIC/PTF), aiming to see if PTF provides a better environment to create multiphase interfaces that facilitate charge carrier movements with both CN and SiC and prevent the recombination of e/h pairs. #Electrochemistry #Gel_Electrolyte #Photocurrent Official Submission:  https://lnkd.in/g4s25XQ2 whatsapp:+86 135 4503 2449

Dynamical Janus Interface Design for Reversible and Fast-Charging Zinc–Iodine Battery under Extreme Operating Conditions Aqueous zinc (Zn) iodine (I2) batteries have emerged as viable alternatives to conventional metal-ion #batteries. However, undesirable Zn deposition and irreversible iodine conversion during #cycling have impeded their progress. To overcome these concerns, we report a dynamical interface design by cation chemistry that improves the reversibility of Zn deposition and four-electron iodine conversion. Due to this design, we demonstrate an excellent Zn-plating/-stripping behavior in Zn||Cu asymmetric cells over 1000 cycles with an average Coulombic efficiency (CE) of 99.95%. Moreover, the Zn||I2 full cells achieve a high-rate #capability (217.1 mA h g–1 at 40 A g–1; C rate of 189.5C) at room temperature and enable stable cycling with a CE of more than 99% at −50 °C at a current #density of 0.05 A g–1. In situ spectroscopic investigations and simulations reveal that introducing tetraethylammonium cations as ion sieves can dynamically modulate the electrode–electrolyte interface environment, forming the unique water-deficient and chloride ion (Cl–)-rich interface. Such Janus interface accounts for the suppression of side reactions, the prevention of ICl decomposition, and the enrichment of reactants, enhancing the reversibility of Zn-stripping/-plating and four-electron iodine chemistry. This fundamental understanding of the intrinsic interplay between the electrode–electrolyte interface and cations offers a rational standpoint for tuning the reversibility of iodine conversion. Read more: https://lnkd.in/gWk4y5xa #battery #batterytechnology #Zn #Zinc #cyclelife #fastcharging

We are pleased to invite you to read selected papers on the topic of Multivalent Metal-Ion Batteries, from the previous two years. Selected Papers from 2022–2023 on the Topic of Multivalent Metal-Ion Batteries https://brnw.ch/21wJOvW Part of them are: 1. “Effect of Lithium Salt Concentration on Materials Characteristics and Electrochemical Performance of Hybrid Inorganic/Polymer Solid Electrolyte for Solid-State Lithium-Ion Batteries” 2. “Recent Progress and Challenges of Flexible Zn-Based Batteries with Polymer Electrolyte” 3. “Transition Metal Dichalcogenides for High-Performance Aqueous Zinc Ion Batteries” 4. “Electrolyte Additive Strategies for Suppression of Zinc Dendrites in Aqueous Zinc-Ion Batteries”

In our recent collaboration synthesizing Friedel's salt, we observe that by optimizing mixing efficiency to application resulted in a noticeable increase in both the yield and purity of the Friedel's salt crystals, without altering any other reaction parameters. In laboratory settings, scientists often rely on mechanical stirring for thick suspensions, while magnetic stirring, can be less reliable. In this use case, the SBE-02 stir bar from FLXR Eng bridges this gap, offering the efficiency of mechanical stirring with the convenience of magnetic stirring and cost saving from scaling down. Effective mixing is crucial in crystallization processes, as it ensures uniform nucleation and crystal growth, reducing impurities and enhancing the overall quality of the crystals. These results highlight the critical role of optimized stirring in achieving proper outcomes in chemical synthesis. ⚗️ #Crystallization #ChemicalEngineering #MaterialsScience #LabOptimization #ResearchAndDevelopment

The success of Friedel’s salt crystal formation probability depends on the distribution of the elements in the process of forming stable nuclei of homogeneous size. After the sufficient addition of NaOH into the mixture generate CaAl2 (OH) to bond with Cl,OH and H2O producing the 2 layers hydroxide, this reduce the solubility of the suspension, making the nuclei to settle down at the bottom of the beaker.  Without sufficient mixing the nuclei and the rest of non-reacted elements cannot be reacted to form the desired product. Consequently, a portion of the reagent transforms into non-desirable compounds. To solve this problem, MIXR-SBE series has sufficient shear rate to move through the thickness of the suspension and disrupt the sedimentation. The multi-blade feature with rotational movement dredges the sedimented particle and revolutionary movement deliver the nuclei to contact with the rest of Ca and Al elements in the suspension. This sufficient shear stress mixing produces a more crystalline material as evidenced by the sharper and more intense diffraction peaks of XRD.