Kwok Ho Lam
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View article: Engineering Na <sub>3</sub> V <sub>2</sub> (PO <sub>4</sub> ) <sub>3</sub> Cathodes via High-Entropy Substitution for Enhanced Pseudocapacitive Sodium Storage and Extended Cycle Life
Engineering Na <sub>3</sub> V <sub>2</sub> (PO <sub>4</sub> ) <sub>3</sub> Cathodes via High-Entropy Substitution for Enhanced Pseudocapacitive Sodium Storage and Extended Cycle Life Open
Na₃V₂(PO₄)₃ (NVP) is regarded as a promising cathode for sodium-ion batteries (SIBs) owing to its high operating voltage and robust NASICON-type framework. However, its practical application is hindered by poor rate capability and limited …
View article: Regulating interfacial water structure to suppress vanadium dissolution in aqueous zinc-ion batteries
Regulating interfacial water structure to suppress vanadium dissolution in aqueous zinc-ion batteries Open
Vanadium-based cathodes in aqueous zinc-ion batteries (AZIBs) suffer from severe capacity fading due to their high solubility in weakly acidic zinc salt electrolytes. In this work, we propose a novel electrolyte formulation by introducing …
High-sensitivity Sm:PIN-PMN-PT ultrasound transducer for biomedical imaging applications Open
Medical ultrasound imaging, a cornerstone of noninvasive diagnostics, relies critically on advanced piezoelectric materials to achieve high-resolution visualization and operational reliability, with the materials used in ultrasound transdu…
View article: Morphology regulation and vacancy engineering for vanadium oxide cathodes via tungsten doping towards advanced zinc-ion batteries
Morphology regulation and vacancy engineering for vanadium oxide cathodes via tungsten doping towards advanced zinc-ion batteries Open
Recently, vanadium oxide of V6O13 has emerged as a promising cathode material for aqueous zinc-ion batteries (AZIBs) due to its high theoretical specific capacity, abundant reserves, and the multiple adjustable oxidation states of vanadium…
Crystallization behavior and electrical conductivity of fluorosilane-modified multi-walled carbon nanotubes/polymethyl methacrylate/polyvinylidene fluoride ternary composite Open
In order to increase the compatibility with polyvinylidene fluoride (PVDF), the multi-walled carbon nanotubes (MWCNTs) were modified by trimethoxy (1H, 1H, 2H, 2H heptadecafluorodecyl) silane to obtain the fluorosilane-modified MWCNTs (F-M…
View article: Ag‐<scp>BN</scp> hybrid filler prepared by a rapid microwave‐heating method and its effective use for <scp>PVDF</scp>‐based composite
Ag‐<span>BN</span> hybrid filler prepared by a rapid microwave‐heating method and its effective use for <span>PVDF</span>‐based composite Open
In this work, a silver nanoparticle‐boron nitride nanoplate (Ag‐BN) hybrid filler was prepared using an effective microwave‐heating method in only 2 min and utilized as a functional filler for a polyvinylidene fluoride (PVDF)‐based composi…
View article: Identifying Problematic Phase Transformations in Pb Foil Anodes for Sodium-Ion Batteries
Identifying Problematic Phase Transformations in Pb Foil Anodes for Sodium-Ion Batteries Open
Group IVA elements have aroused attention in sodium-ion batteries (SIBs) due to their Na-storage capability. Among them, Pb is less explored perhaps due to its perceived risks, but its long-standing success in Pb-acid batteries should not …
View article: Trace alcohol ether electrolytes with dual-site hydrogen bonds and modulated solvation structures for ultralong-life zinc-ion batteries
Trace alcohol ether electrolytes with dual-site hydrogen bonds and modulated solvation structures for ultralong-life zinc-ion batteries Open
Aqueous zinc-ion batteries (AZIBs) are highly regarded for their affordability, stability, safety, and eco-friendliness. Nevertheless, their practical application is hindered by severe side reactions and the formation of zinc (Zn) dendrite…
View article: Modulating solvated structure of Zn2+ and inducing surface crystallography by a simple organic molecule with abundant polar functional groups to synergistically stabilize zinc metal anodes for long-life aqueous zinc-ion batteries
Modulating solvated structure of Zn2+ and inducing surface crystallography by a simple organic molecule with abundant polar functional groups to synergistically stabilize zinc metal anodes for long-life aqueous zinc-ion batteries Open
Aqueous zinc-ion batteries (AZIBs) have attracted significant attention owing to their inherent security, low cost, abundant zinc (Zn) resources and high energy density. Nevertheless, the growth of zinc dendrites and side reactions on the …
Development of Supercapacitors with 3D Porous Structures Open
Invited for this issue's Front Cover is the group from K. H. (Koko) Lam (The Hong Kong Polytechnic University, University of Glasgow). The front cover picture illustrates 3D interconnected nanoporous electrodes featuring a nano‐cage struct…
Front Cover: Development of Supercapacitors with 3D Porous Structures (ChemElectroChem 9/2024) Open
The Front Cover illustrates 3D interconnected nanoporous electrodes featuring a nano-cage structure, wrapping active materials within. This distinctive electrode design enhances contact between active materials, electrolytes, and current c…
View article: Heterogeneous engineering and carbon confinement strategy to synergistically boost the sodium storage performance of transition metal selenides
Heterogeneous engineering and carbon confinement strategy to synergistically boost the sodium storage performance of transition metal selenides Open
Transition metal selenides (TMSs) stand out as a promising anode material for sodium-ion batteries (SIBs) owing to their natural resources and exceptional sodium storage capacity. Despite these advantages, their practical application faces…
View article: In-vivo assessment of a rat rectal tumor using optical-resolution photoacoustic endoscopy
In-vivo assessment of a rat rectal tumor using optical-resolution photoacoustic endoscopy Open
Optical-resolution photoacoustic endoscopy (OR-PAE) has been proven to realize imaging on the vascular network in the gastrointestinal (GI) tract with high sensitivity and spatial resolution, providing morphological information. Various ph…
Development of Supercapacitors with 3D Porous Structures Open
The pursuit of supercapacitors with simultaneous high power and energy densities has led to extensive research and successful outcomes through the integration of three‐dimensional (3D) electrodes, encompassing both 3D active materials and …
Miniature Ultrasound Transducer Incorporating Sm-PMN-PT 1-3 Composite Open
Piezoelectric 1-3 composite materials have become extensively utilized in diagnostic ultrasound transducers owing to their high electromechanical coupling coefficient, low acoustic impedance, and low dielectric loss. In this study, Sm-dope…
View article: Optimizing Interplanar Spacing, Oxygen Vacancies and Micromorphology via Lithium‐Ion Pre‐Insertion into Ammonium Vanadate Nanosheets for Advanced Cathodes in Aqueous Zinc‐Ion Batteries
Optimizing Interplanar Spacing, Oxygen Vacancies and Micromorphology via Lithium‐Ion Pre‐Insertion into Ammonium Vanadate Nanosheets for Advanced Cathodes in Aqueous Zinc‐Ion Batteries Open
Ammonium vanadates, featuring an N─H···O hydrogen bond network structure between NH 4 + and V─O layers, have become popular cathode materials for aqueous zinc‐ion batteries (AZIBs). Their appeal lies in their multi‐electron transfer, high …
View article: Boosting the sodium storage performance of iron selenides by a synergetic effect of vacancy engineering and spatial confinement
Boosting the sodium storage performance of iron selenides by a synergetic effect of vacancy engineering and spatial confinement Open
Recently, iron selenides have been considered as one of the most promising candidates for the anodes of sodium-ion batteries (SIBs) due to their cost-effectiveness and high theoretical capacity; however, their practical application is limi…
View article: Critical roles of multiphase coexistence in boosting piezo-catalytic activity of BaTiO3-based piezoelectric ceramics
Critical roles of multiphase coexistence in boosting piezo-catalytic activity of BaTiO3-based piezoelectric ceramics Open
Recently, piezocatalysis induced by perovskite ferroelectric ceramics has widely been favored as a possible fascinating strategy for water remediation due to its low cost, simplicity and feasibility. Herein, a strategy of three-ferroelectr…
Samarium-Doped Lead Magnesium Niobate-Lead Titanate Ceramics Fabricated by Sintering the Mixture of Two Different Crystalline Phases Open
The fabrication method plays a key role in the performance of lead magnesium niobate–lead titanate-based ceramics. (1 − w)[Pb(Mg1/3Nb2/3)0.67Ti0.33O3]-w[Pb1−1.5xSmx(Mg1/3Nb2/3)yTi1−yO3] piezoelectric ceramics were prepared by sintering the…
Insights into the Sodiation Kinetics of Si and Ge Anodes for Sodium-Ion Batteries Open
Group IVA elements exhibit interesting Na storage capabilities due to the success of their Li alloy analogues. However, beyond hard carbon, they remain poorly understood as anodes for sodium-ion batteries (SIBs). Here, kinetic investigatio…
View article: Efficient Suppression of Dendrites and Side Reactions by Strong Electrostatic Shielding Effect via the Additive of Rb<sub>2</sub>SO<sub>4</sub> for Anodes in Aqueous Zinc‐Ion Batteries
Efficient Suppression of Dendrites and Side Reactions by Strong Electrostatic Shielding Effect via the Additive of Rb<sub>2</sub>SO<sub>4</sub> for Anodes in Aqueous Zinc‐Ion Batteries Open
Aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention due to their low cost and environmental friendliness. However, the rampant dendrite growth and severe side reactions during plating/stripping on the surface of zinc (…
View article: High‐Energy‐Density Cathode Achieved via the Activation of a Three‐Electron Reaction in Sodium Manganese Vanadium Phosphate for Sodium‐Ion Batteries
High‐Energy‐Density Cathode Achieved via the Activation of a Three‐Electron Reaction in Sodium Manganese Vanadium Phosphate for Sodium‐Ion Batteries Open
Sodium superionic conductor (NASICON)‐type Na 3 V 2 (PO 4 ) 3 has attracted considerable interest owing to its stable three‐dimensional framework and high operating voltage; however, it suffers from a low‐energy density due to the poor int…