The impact of long-term trends in continuity of care on the medical expenses of hypertensive patients: based on group-based trajectory model.

Purpose: This study aimed to identify long-term trends in continuity of care (COC) among hypertensive patients using group-based trajectory modeling (GBTM) and evaluate their association with medical expenses, thereby providing evidence for chronic disease management.

Methods: We analyzed 6-year (2016-2021) reimbursement data of the social health insurance from Yuhuan City, China, including 30,545 hypertensive adults. Continuity of Care Index (COCI) was calculated annually.

3D-Printed Hierarchically Porous MOF-Derived Cathodes for Realizing High-Performance Flexible Quasi-Solid-State Aqueous Zinc-Cobalt Batteries.

Rechargeable aqueous Zn-ion batteries hold significant promise for wearable electronics due to their intrinsic safety and eco-friendliness, yet cobalt-based cathodes remain constrained by poor conductivity and sluggish kinetics. Addressing these limitations, we developed 3D-printed (3DP) hierarchically porous MOF-derived cathodes for aqueous zinc-cobalt (Zn-Co) batteries via three synergistic innovation technology pathways: (i) ZIF-67-derived nitrogen-doped carbon-coated CoO nanoparticles (CoO-NC NPs) were synthesized using a scalable hydrothermal method and subsequent annealing process; (ii) a dual-ion (Zn/Mn)-optimized hybrid electrolyte system, that is, the dual-ion synergy from Mn additive enhanced Zn desolvation kinetics while suppressing dendrite formation; and (iii) 3D printing hierarchically porous microlattice architecture integrating reduced graphene oxide/carbon nanotubes-based (rGO/CNTs-based) to establish bicontinuous ion/electron transport networks. The 3DP button Zn-Co cells (thickness: 0.

Amorphous Phosphates Tailor Local Proton Supply for Alkaline Hydrogen Evolution Electrocatalysis.

Hydrogen (H) is irreplaceable as a feedstock in varied industrial scenarios, and alkaline water electrolysis allows for H production without costly proton exchange membrane and noble metals with limited reserves. However, alkaline solution is devoid of directly available protons, leading to suboptimal electrochemical H-evolving kinetics even on catalysts with high intrinsic activities like CoP. On the other hand, high local acidity (i.

Hexafluorophosphate additive enables durable seawater oxidation at ampere-level current density.

Direct seawater electrolysis at ampere-level current densities, powered by coastal/offshore renewables, is an attractive avenue for sustainable hydrogen production but is undermined by chloride-induced anode degradation. Here we demonstrate the use of hexafluorophosphate (PF₆⁻) as an electrolyte additive to overcome this limitation, achieving prolonged operation for over 5,000 hours at 1 A cm and 2300 hours at 2 A cm using NiFe layered double hydroxide (LDH) as anode. Together with the experimental findings, PF₆⁻ can intercalate into LDH interlayers and adsorb onto the electrode surface under an applied electric field, blocking Cl⁻ and stabilizing Fe to prevent segregation.

Ultra-stable seawater oxidation at 1.5 A cm enabled by heptafluorotantalate intercalated NiFe layered double hydroxide.

Seawater electrolysis is a facile, economical, and ecologically friendly approach for large-scale hydrogen production. However, the presence of chloride ions (Cl) in seawater can cause severe anode corrosion, which hinders its further application. Herein, a heptafluorotantalate (TaF) intercalated NiFe layered double hydroxide on Ni foam (TF-NiFe LDH/NF) is proposed for efficient and durable alkaline seawater oxidation (ASO).

3D Printed Low-Tortuosity and Ultra-Thick Hierarchical Porous Electrodes for High-Performance Wearable Quasi-Solid-State Zn-VOH Batteries.

Rechargeable aqueous Zn-ion batteries have received considerable attention in energy storage systems owing to their merits of high safety, low cost, and excellent rate performance. However, the unsatisfactory areal energy density and poor cycling performance hinder their practical applications. Herein, the VO·6HO (VOH) nanosheet arrays and Zn nanoflake arrays growing on the 3D-printed reduced graphene oxide/carbon nanotubes (3DP-rGO/CNTs) microlattices employing the electrodeposition technique, and further serve as the cathode and anode for 3D-printed aqueous Zn-VOH battery, respectively.

Three-dimensional hierarchical urchin-like TiNbO microspheres encapsulated in N-doped carbon for high-rate lithium storage.

Wadsley-Roth phase TiNbO has been known as a potential anode material in high-power lithium-ion batteries (LIBs) owing to its enhanced safety, reliable cycling performance, and substantial theoretical capacity. However, its commercial application is restricted by poor electronic conductivity and slow Li-ion migration kinetics. Herein, we have developed urchin-structured TiNbO microspheres with an ultrathin N-doped carbon coating through a two-step hydrothermal and polydopamine carbonization process.

Manganese Intercalation Enabling High-Performance Aqueous Fe-VO Batteries.

The aqueous iron ion batteries (AIIBs) are an attractive option for large-scale energy storage applications. However, the inadequate plating and stripping of Fe ions underscore the need to explore more suitable cathode materials. Herein, we optimize the structure of tunnel-like VO nanosheets by introducing Mn ion intercalation as a cathode material to enhance their performance in AIIBs.

Gold Nanoparticles Decorated CoAl LDH Monolayer: A Peroxidase-Like Nanozyme for Sensitive Colorimetric Detection of Acetylcholinesterase and Inhibitors.

Monitoring acetylcholinesterase (AChE) activity and its inhibitor is crucial yet challenging for the early diagnosis and treatment of neurological diseases. In this study, we present Au nanoparticle decorated CoAl layered double hydroxide monolayer (Au@CoAl-LDH-m) as a peroxidase-like (POD) nanozyme for the sensitive colorimetric detection of AChE and its inhibitor, thiamine pyrophosphate (TPP). Remarkably, the Au@CoAl-LDH-m nanozyme can catalyze the oxidation of chromogenic substrates through its POD-like activity, which is effectively inhibited by thiocholine (TCh, a catalytic product of AChE), thereby enabling detection of AChE and TPP through a visible colorimetric readout.

Vertically Aligned Ultrathin CoNi-LDH@NiS@MXCF Core-Shell Heterostructure for Flexible Supercapacitor Electrodes and Oxygen Evolution Reaction.

A multilayer core-shell heterostructure with CoNi-LDH as the core and NiS nanosheets as the shell is deposited on MXene-coated carbon nanofibers by electrospinning and electrochemical deposition. This unique structure not only combines highly conductive and hydrophilic one-dimensional carbon nanofibers but also exposes abundant two-dimensional reactive sites and multiple ion diffusion channels to maximize material utilization, enhance electron transfer kinetics, accelerate Faraday reaction, high capacitance and strong stability. The CNNS@MXCF electrode exhibits outstanding electrochemical characteristics, including a capacity of 1441.

Optimizing Reversible Phase-Transformation of FeS Anode via Atomic-Interface Engineering Toward Fast-Charging Sodium Storage: Theoretical Predication and Experimental Validation.

Sodium-storage performance of pyrite FeS is greatly improved by constructing various FeS-based nanostructures to optimize its ion-transport kinetics and structural stability. However, less attention has been paid to rapid capacity degradation and electrode failure caused by the irreversible phase-transition of intermediate NaFeS to FeS and polysulfides dissolution upon cycling. Under the guidance of theoretical calculations, coupling FeS nanoparticles with honeycomb-like nitrogen-doped carbon (NC) nanosheet supported single-atom manganese (SAs Mn) catalyst (FeS/SAs Mn@NC) via atomic-interface engineering is proposed to address above challenge.

Stabilizing NiFe sites by high-dispersity of nanosized and anionic Cr species toward durable seawater oxidation.

Electrocatalytic H production from seawater, recognized as a promising technology utilizing offshore renewables, faces challenges from chloride-induced reactions and corrosion. Here, We introduce a catalytic surface where OH dominates over Cl in adsorption and activation, which is crucial for O production. Our NiFe-based anode, enhanced by nearby Cr sites, achieves low overpotentials and selective alkaline seawater oxidation.

Aqueous alternating electrolysis prolongs electrode lifespans under harsh operation conditions.

It is vital to explore effective ways for prolonging electrode lifespans under harsh electrolysis conditions, such as high current densities, acid environment, and impure water source. Here we report alternating electrolysis approaches that realize promptly and regularly repair/maintenance and concurrent bubble evolution. Electrode lifespans are improved by co-action of Fe group elemental ions and alkali metal cations, especially a unique Co-Na combo.

Porous VN nanosheet arrays on MXene carbon fibers for flexible supercapacitors.

VN usually has poor rate performance and cycle stability. In this work, porous VN nanosheet arrays were prepared on carbon nanofibers embedded with TiCT nanosheets by electrospinning and chemical vapor deposition. The 3D network accelerates the transfer of electrons and electrolyte ions, prevents the aggregation of VN and the self-stacking of MXene, and enhances cycle stability.

Dynamic Phase Transformations of Prussian Blue Analogue Crystals in Hydrotherms.

Prussian blue analogue (PBA)/metal-organic frameworks (MOFs) are multifunctional precursors for the synthesis of metal/metal compounds, carbon, and their derived composites (P/MDCs) in chemical, medical, energy, and other applications. P/MDCs combine the advantages of both the high specific surface area of PBA/MOF and the electronic conductivity of metal compound/carbon. Although the calcination under different atmospheres has been extensively studied, the transformation mechanism of PBA/MOF under hydrothermal conditions remains unclear.

Versatile Separators Toward Advanced Lithium-Sulfur Batteries: Status, Recent Progress, Challenges and Perspective.

Lithium-sulfur batteries (LSBs) have recently gained extensive attention due to their high energy density, low cost, and environmental friendliness. However, serious shuttle effect and uncontrolled growth of lithium dendrites restrict them from further commercial applications. As "the third electrode", functional separators are of equal significance as both anodes and cathodes in LSBs.

Efficient bubble/precipitate traffic enables stable seawater reduction electrocatalysis at industrial-level current densities.

Seawater electroreduction is attractive for future H production and intermittent energy storage, which has been hindered by aggressive Mg/Ca precipitation at cathodes and consequent poor stability. Here we present a vital microscopic bubble/precipitate traffic system (MBPTS) by constructing honeycomb-type 3D cathodes for robust anti-precipitation seawater reduction (SR), which massively/uniformly release small-sized H bubbles to almost every corner of the cathode to repel Mg/Ca precipitates without a break. Noticeably, the optimal cathode with built-in MBPTS not only enables state-of-the-art alkaline SR performance (1000-h stable operation at -1 A cm) but also is highly specialized in catalytically splitting natural seawater into H with the greatest anti-precipitation ability.

Efficient Electrochemical Co-Reduction of Carbon Dioxide and Nitrate to Urea with High Faradaic Efficiency on Cobalt-Based Dual-Sites.

Renewable electricity-powered nitrate/carbon dioxide co-reduction reaction toward urea production paves an attractive alternative to industrial urea processes and offers a clean on-site approach to closing the global nitrogen cycle. However, its large-scale implantation is severely impeded by challenging C-N coupling and requires electrocatalysts with high activity/selectivity. Here, cobalt-nanoparticles anchored on carbon nanosheet (Co NPs@C) are proposed as a catalyst electrode to boost yield and Faradaic efficiency (FE) toward urea electrosynthesis with enhanced C-N coupling.

Arming Amorphous NiMoO on Nickel Phosphide Enables Highly Stable Alkaline Seawater Oxidation.

Seawater electrolysis holds tremendous promise for the generation of green hydrogen (H). However, the system of seawater-to-H faces significant hurdles, primarily due to the corrosive effects of chlorine compounds, which can cause severe anodic deterioration. Here, a nickel phosphide nanosheet array with amorphous NiMoO layer on Ni foam (NiP@NiMoO/NF) is reported as a highly efficient and stable electrocatalyst for oxygen evolution reaction (OER) in alkaline seawater.

Rational Construction of 3D Self-Supported MOF-Derived Cobalt Phosphide-Based Hollow Nanowall Arrays for Efficient Overall Water Splitting At large Current Density.

Developing efficient nonprecious bifunctional electrocatalysts for hydrogen and oxygen evolution reactions (HER and OER) in the same electrolyte with a low overpotential and large current density presents an appealing yet challenging goal for large-scale water electrolysis. Herein, a unique 3D self-branched hierarchical nanostructure composed of ultra-small cobalt phosphide (CoP) nanoparticles embedded into N, P-codoped carbon nanotubes knitted hollow nanowall arrays (CoPʘNPCNTs HNWAs) on carbon textiles (CTs) through a carbonization-phosphatization process is presented. Benefiting from the uniform protrusion distributions of CoP nanoparticles, the optimum CoPʘNPCNTs HNWAs composites with high abundant porosity exhibit superior electrocatalytic activity and excellent stability for OER in alkaline conditions, as well as for HER in both acidic and alkaline electrolytes, even under large current densities.

A Metal Coordination Number Determined Catalytic Performance in Manganese Borides for Ambient Electrolysis of Nitrogen to Ammonia.

A new strategy that can effectively increase the nitrogen reduction reaction performance of catalysts is proposed and verified by tuning the coordination number of metal atoms. It is found that the intrinsic activity of Mn atoms in the manganese borides (MnB) increases in tandem with their coordination number with B atoms. Electron-deficient boron atoms are capable of accepting electrons from Mn atoms, which enhances the adsorption of N on the Mn catalytic sites (*) and the hydrogenation of N to form *NNH intermediates.