Turn the Harm into A Benefit: Axial Cl Adsorption on Curved Fe-N Single Sites for Boosted Oxygen Reduction Reaction in Seawater.

Seawater electrocatalysis is urgently needed for various energy storage and conversion systems. However, the adsorption of chloride ions (Cl) to the active sites can degrade the oxygen reduction reaction (ORR) activity and stability, thus reducing the catalytic performance. In this paper, a curved FeN single atomic structure is designed by utilizing curvature engineering, which can turns the harmful Cl adsorption into a benefit on the Fe single site that changes the rate determining step of ORR and reduces the overall energy barrier according to density functional theory (DFT) calculation.

Unravelling the Role of Indium in Enhancing the Stability of Mixed Tin-Lead Perovskite Solar Cells.

Tin-lead metal halide perovskites show promise as light-absorbing materials with a tunable band gap (1.2-1.4 eV) for efficient perovskite solar cells (PSCs) with less toxicity.

Preventive effects of progressive resistance training of different intensities on breast cancer-related lymphedema.

Purpose: Explore the preventive effects of varying intensity progressive resistance exercise on breast cancer-related lymphedema.

Methods: A total of 114 breast cancer patients who underwent axillary lymph node dissection at Tangshan People's Hospital from January to April 2024 were included. Participants were randomly assigned to three groups: the control group received conventional care; intervention group 1 received conventional care + low-intensity progressive resistance exercise; and intervention group 2 received routine nursing + moderate and high-intensity progressive resistance exercise.

Effects of dynamic and static relaxation therapy on cancer-induced fatigue and sleep disorders in patients with breast cancer undergoing chemotherapy: a randomized control trial.

Purpose: To investigate the effects of dynamic-static combined relaxation therapy on fatigue and sleep disorders in breast cancer patients undergoing chemotherapy.

Methods: A total of 114 patients receiving chemotherapy at Tangshan People's Hospital (September 2023-June 2024) were randomly divided into three groups: control (routine nursing), experiment group 1 (static Benson relaxation), and experiment group 2 (dynamic yoga + static Benson relaxation). The intervention lasted 8 weeks.

Effects of intermittent hand-foot hypothermia therapy on chemotherapy-induced peripheral neurotoxicity.

Purpose: Chemotherapy-induced peripheral neuropathy (CIPN) is a common side effect in patients with breast cancer undergoing chemotherapy. This study aimed to assess the effects of three different intermittent hypothermia temperatures applied to the hands and feet on CIPN symptoms in patients with breast cancer undergoing chemotherapy.

Methods: In total, 108 patients were randomly divided into three experimental groups (n = 36).

Edge-Induced Synergy of Ni-Ni Defects in NiFe Layered-Double-Hydroxide for Electrocatalytic Water Oxidation Reaction.

Defect engineering is widely regarded as a promising strategy to enhance the performance of electrocatalysts for water splitting. In this work, defective NiFe layered double hydroxide (NiFe LDH) with a high density of edge sites (edge-rich NiFe LDH) is synthesized via a simple reduction process during the early stages of nucleation. The introduction of edges into oxygen evolution reaction (OER) catalysts modulates the electronic structure of the active sites.

Prediction of perovskite oxygen vacancies for oxygen electrocatalysis at different temperatures.

Efficient catalysts are imperative to accelerate the slow oxygen reaction kinetics for the development of emerging electrochemical energy systems ranging from room-temperature alkaline water electrolysis to high-temperature ceramic fuel cells. In this work, we reveal the role of cationic inductive interactions in predetermining the oxygen vacancy concentrations of 235 cobalt-based and 200 iron-based perovskite catalysts at different temperatures, and this trend can be well predicted from machine learning techniques based on the cationic lattice environment, requiring no heavy computational and experimental inputs. Our results further show that the catalytic activity of the perovskites is strongly correlated with their oxygen vacancy concentration and operating temperatures.

Second-shell modulation on porphyrin-like Pt single atom catalysts for boosting oxygen reduction reaction.

The first coordination shell is considered crucial in determining the performance of single atom catalysts (SACs), but the significance of the second coordination shell has been overlooked. In this study, we developed a post-doping strategy to realize predictable and controlled modulation on the second coordination shell. By incorporating a P atom into the second coordination shell of a porphyrin-like Pt SAC, the charge density at the Fermi level of Pt single atom increases, enhancing its intrinsic activity.

Pathways and enhancement strategies for magnesium hardness removal in modified induced crystallization softening.

Elevated levels of total hardness in drinking water can readily result in scaling, which poses a threat to both the safety of water quality and the convenience of its use. While there is a wealth of research on the removal of calcium hardness, there is a dearth of studies focusing on the removal of magnesium hardness. In light of this, the present study employs modified induced crystallization softening (MICS) to delineate the removal pathways and mechanisms of magnesium hardness, and to investigate viable methods for its enhancement and application.

The impact of coronavirus disease 2019 on frozen-thawed embryo transfer outcomes.

Background: Coronavirus disease 2019 (COVID-19) has raised concerns about its potential effects on human fertility, particularly among individuals undergoing assisted reproductive therapy (ART). However, the impact of COVID-19 on female reproductive and assisted reproductive outcomes is unclear. In this study, we aimed to evaluate the effects of COVID-19 on pregnancy outcomes during frozen-thawed embryo transfer (FET) cycles.

Nanoporous Heterojunction Photocatalysts with Engineered Interfacial Sites for Efficient Photocatalytic Nitrogen Fixation.

Photocatalytic N reduction reaction (PNRR) offers a promising strategy for sustainable production of ammonia (NH). However, the reported photocatalysts suffer from low efficiency with great room to improve regarding the charge carrier utilization and active site engineering. Herein, a porous and chemically bonded heterojunction photocatalyst is developed for efficient PNRR to NH production via hybridization of two semiconducting metal-organic frameworks (MOFs), MIL-125-NH (MIL=Material Institute Lavoisier) and Co-HHTP (HHTP=2,3,6,7,10,11-hexahydroxytripehenylene).

Ultrahigh Néel Temperature Antiferromagnetism and Ultrafast Laser-Controlled Demagnetization in a Dirac Nodal Line MoB Monolayer.

Two-dimensional (2D) antiferromagnetic (AFM) materials boasting a high Néel temperature (), high carrier mobility, and fast spin response under an external field are in great demand for efficient spintronics. Herein, we theoretically present the MoB monolayer as an ideal 2D platform for AFM spintronics. The AFM MoB monolayer features a symmetry-protected, 4-fold degenerate Dirac nodal line (DNL) at the Fermi level.

Anthracite-Derived Porous Carbon@MoS Heterostructure for Elevated Lithium Storage Regulated by the Middle TiO Layer.

The rational design of MoS/carbon composites have been widely used to improve the lithium storage capability. However, their deep applications remain a big challenge due to the slow electrochemical reaction kinetics of MoS and weak bonding between MoS and carbon substrates. In this work, anthracite-derived porous carbon (APC) is sequential coated by TiO nanoparticles and MoS nanosheets via a chemical activation and two-step hydrothermal method, forming the unique APC@TiO@MoS ternary composite.

p-d Orbital Hybridization in Ag-based Electrocatalysts for Enhanced Nitrate-to-Ammonia Conversion.

Considering the substantial role of ammonia, developing highly efficient electrocatalysts for nitrate-to-ammonia conversion has attracted increasing interest. Herein, we proposed a feasible strategy of p-d orbital hybridization via doping p-block metals in an Ag host, which drastically promotes the performance of nitrate adsorption and disassociation. Typically, a Sn-doped Ag catalyst (SnAg) delivers a maximum Faradaic efficiency (FE) of 95.

Waxberry-like hydrophilic Co-doped ZnFeO as bifunctional electrocatalysts for water splitting.

Water splitting is a promising technique for clean hydrogen production. To improve the sluggish hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), the development of efficient bifunctional electrocatalysts for both HER and OER is urgent to approach the scale-up applications of water splitting. Nowadays transition metal oxides (TMOs) are considered as the promising electrocatalysts due to their low cost, structural flexibility and stability, however, their electrocatalytic activities are eager to be improved.

Electrochemical Reduction of N to Ammonia Promoted by Hydrated Cation Ions: Mechanistic Insights from a Combined Computational and Experimental Study.

Alkali ions, major components at the electrode-electrolyte interface, are crucial to modulating reaction activity and selectivity of catalyst materials. However, the underlying mechanism of how the alkali ions catalyze the N reduction reaction (NRR) into ammonia remains elusive, posing challenges for experimentalists to select appropriate electrolyte solutions. In this work, by employing a combined experimental and computational approach, we proposed four essential roles of cation ions at Fe electrodes for N fixation: (i) promoting NN bond cleavage; (ii) stabilizing NRR intermediates; (iii) suppressing the competing hydrogen evolution reaction (HER); and (iv) modulating the interfacial charge distribution at the electrode-electrolyte interface.

Colloidal Synthesis of Carbon Dot-ZnSe Nanoplatelet Van der Waals Heterostructures for Boosting Photocatalytic Generation of Methanol-Storable Hydrogen.

Methanol is not only a promising liquid hydrogen carrier but also an important feedstock chemical for chemical synthesis. Catalyst design is vital for enabling the reactions to occur under ambient conditions. This study reports a new class of van der Waals heterojunction photocatalyst, which is synthesized by hot-injection method, whereby carbon dots (CDs) are grown in situ on ZnSe nanoplatelets (NPLs), i.

Cu-Mo Dual Sites in Cu-Doped MoSe for Enhanced Electrosynthesis of Urea.

The quest for sustainable urea production has directed attention toward electrocatalytic methods that bypass the energy-intensive traditional Haber-Bosch process. This study introduces an approach to urea synthesis through the coreduction of CO and NO using copper-doped molybdenum diselenide (Cu-MoSe) with Cu-Mo dual sites as electrocatalysts. The electrocatalytic activity of the Cu-MoSe electrode is characterized by a urea yield rate of 1235 μg h mg at -0.

Highly Curved Defect Sites: How Curvature Effect Influences Metal-Free Defective Carbon Electrocatalysts.

Topological defects are widely recognized as effective active sites toward a variety of electrochemical reactions. However, the role of defect curvature is still not fully understood. Herein, carbon nanomaterials with rich topological defect sites of tunable curvature is reported.