Beijing University of Chemical Technology

Superior Leaf Deposition and Subsequent Uptake: Nanocarrier Boosts Cyproflanilide for Enhanced Pest Control

Abstract Chemical pesticides remain indispensable for crop protection, but inefficient delivery and overapplication lead to resistance and environmental risks. Cyproflanilide is a novel meta-diamide insecticide active against a broad range of agricultural pests. Here, we develope...

Design and mechanistic study of hollow SiO 2 ‐based porous liquids for catalytic CO 2 cycloaddition

Abstract Porous liquids (PLs) are novel materials with permanent pores, showing promise for gas capture and catalysis. Hollow SiO 2 (HS) is commonly used to construct Type I PLs due to its well‐defined structure and functionalizable surface. Here, ionic liquids IL1–5 with catalyt...

Covalent organic frameworks for oxygen reduction: Coupling electron, proton, and molecular transport with kinetics

Abstract The oxygen reduction reaction (ORR) remains a central kinetic bottleneck in fuel cells. Its performance depends not only on catalyst activity, but also on electron/proton transfer, oxygen transport, and surface reaction kinetics. Because catalytic reactions and mass tran...

Spontaneous ChlorineGeneration via Interfacial Oxidationof Chloride by O2 on Acidic Microdroplets

Abstract Reactive chlorine species significantly influence atmospheric chemistry, yet their sources remain inadequately defined. We have discovered a spontaneous formation pathway for substantial molecular chlorine (Cl2) from the oxidation of chloride (Cl–) through interfacial ox...

MWMOTE-MLLM: A cluster-level difficulty-aware oversampling multimodal large language model framework for imbalanced fault diagnosis of rolling bearings in horizontal reactors

The horizontal reactor serves as a critical piece of equipment in petrochemical production and operates under extreme conditions, including high temperature, high pressure, and strong corrosion. Under such conditions, rolling bearings are prone to faults caused by excessive vibra...

Isomer Effect of Double-Spiro Mechanophores in Polymer Mechanochemistry

Abstract Easy construction of rhodamine spiro rings and diversity of naphthalenediol enable various isomers of the naphthalene-fused double rhodamine structure and provide the possibility to study the structure–performance relationship of double-spiro mechanophores. Herein, we fo...

Knowledge-Guided Graph iTransformer Enhanced by Reinforcement Learning for Industrial Fault Diagnosis

Complex industrial processes are characterized by strong coupling, nonlinear interactions, and dynamic causal dependencies between variables, posing significant challenges for accurate fault diagnosis. Conventional data-driven methods often fail to effectively exploit structural...

Atomic High-Spin Cobalt Unlocks Reversible Multi-Electron Transfer Chemistry for Superb Aqueous Zn-Mn Batteries

Abstract To settle inherent irreversible phase transition and motivate re-dissolution of deposited “dead” MnO 2 without acid and redox mediator addition, we introduced atomic-dispersed Co atoms with high-spin state into layered MnO 2 , denoted as Co–MnO 2 , via an in situ topolog...

Decouple Intrinsic Activity and Mass Transfer Optimization to Achieve Ultra-High Hydrogen Evolution Reaction Performance at High Current Density

Abstract Improving the hydrogen evolution reaction (HER) performances of the Pt catalysts is important for reducing the cost of proton exchange membrane water electrolyzers. Understanding the origin of the overpotential when Pt/C catalyzes the HER is significant for designing hig...

Structural Water‐Enabled Helicity Emergence From an Asymmetric Achiral Molecule

ABSTRACT Helical supramolecular architectures are ubiquitous in nature yet remain challenging to construct from asymmetric achiral molecules. Here, we demonstrate that structural water acts as a symmetry‐breaking and frustration‐generating element in artificial self‐assembly. Usi...

Direct visualization of RNA virus and evaluation of drug effect in living cells by catalytically transformable DNA cube

In situ visualization of viral RNA in living cells is critical for understanding infection dynamics and evaluating antiviral responses, yet offline methods such as polymerase chain reaction are incompatible with real-time analysis. Here, a CAtalytically Transformable DNA Cube (CA...

Metabolic engineering of Escherichia coli for efficient production of d-phenylglycine

d -phenylglycine (D-PHG) is a valuable building block extensively used in the synthesis of β-lactam antibiotics and other high-value pharmaceuticals. However, its conventional chemical production relies on expensive starting materials and harsh reaction conditions, while existing...

Are corporate cash holdings sensitive to neighborhood carbon emissions?

Abstract As carbon transition and regulatory risks escalate, understanding the impact of local carbon emissions on corporate financial strategies is essential, particularly in shaping cash holding policies to manage environmental liabilities. This study investigates the impact of...

What is happening at the atomic level during the seed-mediated growth of copper on gold?

Bimetallic nanocrystals obtained via seed-mediated growth are typically analyzed using conventional electron microscopy and many interesting features at the atomic level are often missed. Here we report the seed-mediated growth of copper (Cu) on gold (Au) nanospheres for the synt...

Symbolic or Substantive? The Impact of Managerial Climate Awareness on Firms' Sustainability

ABSTRACT This study examines whether managerial climate awareness contributes to symbolic or substantive sustainability of Chinese publicly listed firms. We find that only when managers' climate awareness is high enough will they significantly drive firms toward substantive susta...

Axial N Disrupt d –π Conjugation of Asymmetric Fe─Cu Dual‐Atom Enhances CO 2 Electroreduction

ABSTRACT Precise spin‐polarization modulation of electronic structures in dual single‐atomic sites (DSAS) is critical yet challenging for boosting electrocatalytic CO 2 reduction reaction (CO 2 RR). Here, we report a Fe 3 d ‐orbital spin‐polarization regulation strategy through c...

A biodegradable piezoelectric vertebral implant for programmable electro-neuromodulation in spinal cord injury

Spinal cord stimulation has emerged as a promising therapeutic strategy for spinal cord injury (SCI), yet conventional electronic implants remain limited by surgical risk and long-term safety concerns. We introduce a biodegradable piezoelectric cryogel (Piezo Gel) that enables pr...

Nanoconfinement Engineering Enables Pt Nanocrystals in MOF-on-MOF Derived Nanoporous Carbon Microspheres for Hydrogen Evolution

Abstract Developing Pt-based catalysts with maximized atomic utilization and optimized electronic structures remains crucial for accelerating the cathodic hydrogen evolution reaction (HER). Herein, we develop a MOF-on-MOF-derived confinement strategy to construct a defect-mediate...

Two‐Dimensional Conjugated Metal Organic Frameworks with Dual Metal Catalytic Active Sites Enhance POD Activity for Antibacterial Treatment

ABSTRACT The emergence of drug‐resistant bacteria has brought a grand challenge to the treatment of oral ulcers (OUs). Peroxidase (POD) enzymes catalyze the conversion of hydrogen peroxide (H 2 O 2 ) into reactive oxygen species (ROS), offering a promising strategy for treating d...

Dynamic Resilience Screening of Strait of Hormuz-Induced Trade Squeeze in Global Food Supply Chain Systems

A maritime chokepoint shock can spread beyond the countries directly connected to the affected route. We develop a monthly resilience screening model for a hypothetical Strait of Hormuz closure that separates direct disruption, scarcity-driven trade squeeze, household access pres...