Isotope tracer study of soil erosion in a typical sub-watershed in the eastern Tianshan Mountains, China.

Soil erosion represents a critical ecological and environmental challenge on a global scale. In this study, the Baiyang River sub-watershed, located in the eastern Tianshan Mountains of Xinjiang, China, was selected as a representative area for the quantitative analysis of soil erosion. The dual isotope tracer technique, utilizing Cs and Pb, was employed to investigate the distribution patterns of these isotopes within soil profiles and to assess soil erosion dynamics under varying land-use types.

Surface hydrogen migration significantly promotes electroreduction of acetonitrile to ethylamine.

The electrochemical reduction of acetonitrile (AN) to ethylamine (EA) is an attractive yet challenging process, primarily due to the competing hydrogen evolution reaction (HER). This study demonstrates the ability to halt the HER at Volmer step, where protons migrate to the unsaturated bond of AN on a self-supported CuO@Cu heterostructure. The CuO@Cu catalyst exhibits nearly 100% Faradaic efficiency (FE) over the entire range of potentials tested from -0.

Carbon Surface Chemistry: Benchmark for the Analysis of Oxygen Functionalities on Carbon Materials.

The explicit roles of the hardly avoidable oxygen species on carbon materials in various fields remain contentious due to the limitations of characterization techniques, which lead to a lack of fundamental understanding of carbon surface chemistry. This study delves exhaustively into the comprehension of the features of different oxygen-modified carbons through the dynamic evolution of surficial oxygen functional groups. Significant differences of thermal stability and electronic properties among various oxygen species are elucidated via in situ characterizations and theoretical calculations, providing a reliable benchmark for identifying oxygen functional groups on carbon materials.

Water-Induced Integrated Regeneration of Cathode Materials from Spent Sodium-Ion Batteries.

The increasingly accumulated end-of-life batteries require high-efficiency regeneration technology for sustainable development. However, the existing recycling methods are highly restricted in a direct additive process due to the inconsistent content of alkaline ions within various spent materials and then failure to recover them together. Here, a subtractive process is introduced for the integrated regeneration of spent cathode materials, which successfully transforms the cathode materials with an unknown Na content to the desodiation phase together via water only.

Efficient amine-assisted CO hydrogenation to methanol co-catalyzed by metallic and oxidized sites within ruthenium clusters.

Amine-assisted two-step CO hydrogenation is an efficient route for methanol production. To maximize the overall catalytic performance, both the N-formylation of amine with CO (i.e.

Enhanced Simulation of Complicated MXene Materials with Graph Convolutional Neural Networks.

MXene, a notable two-dimensional transition metal carbide, has attracted increasing attention in materials science due to its unique attributes, driving innovations in energy storage, sensors, catalysts, and electromagnetic shielding. The property and application performance are determined by the electronic structure, which can be described based on the density of states (DOS). The conventional density functional theory (DFT) calculation is able to provide the DOS spectrum of a specific atomic structure.

Sparkling Synergy: Enhancing Hydrogen Evolution with a Mesoporous CoP/FeP Interface.

The reaction kinetics is predominantly determined by the surface and interface engineering of electrocatalysts. Herein, we demonstrate the growth of cobalt monophosphide and iron monophosphide (CoP/FeP) with an effective solid interface. The surface of CoP/FeP is mesoporous, which is obtained by phosphidizing mesoporous CoFeO.

A Na-Free Surface Enables "Three-In-One" Enhancement of Structural, Interfacial and Air Stability for Sodium-Ion Battery Cathodes.

O3-type layered oxides are regarded as one of the most promising cathode materials for sodium-ion batteries. However, the multistep phase transitions, severe electrode/electrolyte parasitic reactions, and moisture sensitivity are challenging for their practical application because of the highly active Na. Here, a Na-free layer is built on the surface of NaNiMnFeO (NMF111) via a leaching treatment and the subsequent surface reconstruction.

Atom-pair engineering of single-atom nanozyme for boosting peroxidase-like activity.

Constructing atom-pair engineering and improving the activity of metal single-atom nanozyme (SAzyme) is significant but challenging. Herein, we design the atom-pair engineering of Zn-SA/CNCl SAzyme by simultaneously constructing Zn-N sites as catalytic sites and Zn-NCl sites as catalytic regulator. The Zn-NCl catalytic regulators effectively boost the peroxidase-like activities of Zn-N catalytic sites, resulting in a 346-fold, 1496-fold, and 133-fold increase in the maximal reaction velocity, the catalytic constant and the catalytic efficiency, compared to Zn-SA/CN SAzyme without the Zn-NCl catalytic regulator.

An Active Strategy to Reduce Residual Alkali for High-Performance Layered Oxide Cathode Materials of Sodium-Ion Batteries.

Residual alkali is one of the biggest challenges for the commercialization of sodium-based layered transition metal oxide cathode materials since it can even inevitably appear during the production process. Herein, taking O3-type NaNiMnFeMgTiO as an example, an active strategy is proposed to reduce residual alkali by slowing the cooling rate, which can be achieved in one-step preparation method. It is suggested that slow cooling can significantly enhance the internal uniformity of the material, facilitating the reintegration of Na into the bulk material during the calcination cooling phase, therefore substantially reducing residual alkali.

Effects of O, S, and P in transition-metal compounds on the adsorption and catalytic ability of sulfur cathodes in lithium-sulfur batteries.

Transition-metal compounds (TMCs) have recently become promising candidates as lithium-sulfur (Li-S) battery cathode materials because they have unique adsorption and catalytic properties. However, the relationship between the anionic species and performance has not been sufficiently revealed. Herein, using FeCoNiX (X = O, S, and P) compounds as examples, we systematically studied the effects of the anion composition of FeCoNiX compounds on the adsorption and catalytic abilities of sulfur cathodes in Li-S batteries.

Exploitation of multiple host-derived nutrients by the yellow catfish epidermal environment facilitates Vibrio mimicus to sustain infection potency and susceptibility.

Infection with Vibrio mimicus in the Siluriformes has demonstrated a rapid and high infectivity and mortality rate, distinct from other hosts. Our earlier investigations identified necrosis, an inflammatory storm, and tissue remodeling as crucial pathological responses in yellow catfish (Pelteobagrus fulvidraco) infected with V. mimicus.

Enhancing Electrocatalytic CO-to-CO Conversion by Weakening CO Binding through Nitrogen Integration in the Metallic Fe Catalyst.

Metallic iron (Fe) typically demonstrates the unfavorable catalytic activity for the CO reduction reaction (CORR), mainly attributed to the excessively strong binding of CO products on Fe sites. Toward this end, we employed an effective approach involving electronic structure modulation through nitrogen (N) integration to enhance the performance of the CORR. Here, an efficient catalyst has been developed, composed of N-doped metallic iron (Fe) nanoparticles encapsulated in a porous N-doped carbon framework.

Tuning the Solvation Structure in Water-Based Solution Enables Surface Reconstruction of Layered Oxide Cathodes toward Long Lifespan Sodium-Ion Batteries.

Layered oxides of sodium-ion batteries suffer from severe side reactions on the electrode/electrolyte interface, leading to fast capacity degradation. Although surface reconstruction strategies are widely used to solve the above issues, the utilization of the low-cost wet chemical method is extremely challenging for moisture-sensitive Na-based oxide materials. Here, the solvation tuning strategy is proposed to overcome the deterioration of NaNiMnFeO in water-based solution and conduct the surface reconstruction.

Corrigendum: Transcriptome reveals the role of the gene in mediating antibiotic resistance through cell envelope modulation in SCCF01.

[This corrects the article DOI: 10.3389/fmicb.2023.

Bioinspired stormwater control measure for the enhanced removal of truly dissolved polycyclic aromatic hydrocarbons and heavy metals from urban runoff.

Stormwater harvesting (SWH) addresses the UN's Sustainable Development Goals (SDGs). Conventional stormwater control measures (SCMs) effectively remove particulate and colloidal contaminants from urban runoff; however, they fail to retain dissolved contaminants, particularly substances of concern like polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs), thereby hindering the SWH applicability. Here, inspired by protein folding in nature, we reported a novel biomimetic SCM for the efficient removal of dissolved PAHs and HMs from urban runoff.

The cAMP Receptor Protein (CRP) of Regulates Its Bacterial Growth, Type II Secretion System, Flagellum Formation, Adhesion Genes, and Virulence.

is a serious pathogen in aquatic animals, resulting in significant economic losses. The cAMP receptor protein (CRP) often acts as a central regulator in highly pathogenic pathogens. SCCF01 is a highly pathogenic strain isolated from yellow catfish; the gene deletion strain (Δ) was constructed by natural transformation to determine whether this deletion affects the virulence phenotypes.

The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis.

The utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in energy consumption. Water electrolysis, utilizing pure water, has proven to be a robust technology for clean hydrogen production. Recently, seawater electrolysis has emerged as an attractive alternative due to the limitations of deep-sea regions imposed by the transmission capacity of long-distance undersea cables.

Progress in Anode Stability Improvement for Seawater Electrolysis to Produce Hydrogen.

Seawater electrolysis for hydrogen production is a sustainable and economical approach that can mitigate the energy crisis and global warming issues. Although various catalysts/electrodes with excellent activities have been developed for high-efficiency seawater electrolysis, their unsatisfactory durability, especially for anodes, severely impedes their industrial applications. In this review, attention is paid to the factors that affect the stability of anodes and the corresponding strategies for designing catalytic materials to prolong the anode's lifetime.

Computational understanding of Na-LTA for ethanol-water separation.

There is a growing demand for high purity ethanol as an electronic chemical. The conventional distillation process is effective for separating ethanol from water but consumes a significant amount of energy. Selective membrane separation using the LTA-type molecular sieve has been introduced as an alternative.

Transcriptome reveals the role of the gene in mediating antibiotic resistance through cell envelope modulation in SCCF01.

HtpG, a bacterial homolog of the eukaryotic 90 kDa heat-shock protein (Hsp90), represents the simplest member of the heat shock protein family. While the significance of Hsp90 in fungal and cancer drug resistance has been confirmed, the role of HtpG in bacterial antibiotic resistance remains largely unexplored. This research aims to investigate the impact of the gene on antibiotic resistance in .

Genotype diversity and antibiotic resistance risk in Aeromonas hydrophila in Sichuan, China.

Sichuan is a significant aquaculture province in China, with a total aquaculture output of 1.72 × 10 tons in 2022. One of the most significant microorganisms hurting the Sichuan aquaculture is Aeromonas hydrophila, whose genotype and antibiotic resistance are yet unknown.

Ag Nanoparticle-Induced Surface Chloride Immobilization Strategy Enables Stable Seawater Electrolysis.

Although hydrogen gas (H ) storage might enable offshore renewable energy to be stored at scale, the commercialization of technology for H generation by seawater electrolysis depends upon the development of methods that avoid the severe corrosion of anodes by chloride (Cl ) ions. Here, it is revealed that the stability of an anode used for seawater splitting can be increased by more than an order of magnitude by loading Ag nanoparticles on the catalyst surface. In experiments, an optimized NiFe-layered double hydroxide (LDH)@Ag electrode displays stable operation at 400 mA cm in alkaline saline electrolyte and seawater for over 5000 and 2500 h, respectively.

Temperature-Mediated Phase Separation Enables Strong yet Reversible Mechanical and Adhesive Hydrogels.

Hydrogels with strong yet reversible mechanical and adhesive properties fabricated in a facile and friendly manner are important for engineering and intelligent electronics applications but are challenging to create and control. Existing approaches for preparing hydrogels involve complicated pretreatments and produce hydrogels that suffer from limited skin applicability. Copolymerized hydrogels are expected to present an intriguing target in this field by means of thermoresponsive features, while the perceived intrinsic flaws of brittleness, easy fracture, and weak adhesion enervate the development prospects.