Qingdao University of Science and Technology

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...

Ultrasound-Assisted Extraction of Curcumin Using a Deep Eutectic Solvent: Molecular Insights into the Extraction Mechanism

In this study, five levulinic acid-based deep eutectic solvents (DESs) were evaluated for the ultrasound-assisted extraction of curcuminoids from Curcuma longa. The relationship between DES composition, intermolecular interactions, and extraction performance was investigated by c...

Preparation and Comprehensive Properties of CeO2-Doped Composite Copper Foils

In the field of flexible electronics, traditional composite copper foils generally suffer from weak interfacial adhesion between the copper layer and polymer substrate, poor corrosion resistance, insufficient surface uniformity, and limited functional adaptability. To address the...

Microfluidic engineering of CeO2/Peptide nanosheet-integrated bioactive hydrogel microspheres for multi-enzymatic biomimetic catalytic therapy of osteoarthritis

Osteoarthritis (OA) is a degenerative joint disease characterized by chronic inflammation and oxidative stress-induced cartilage degeneration, yet effective disease-modifying therapies remain limited. Herein, we report a CeO 2 /peptide nanosheet (CeP)-integrated hydrogel microsph...

Local microenvironment modulation in Cu(I)‐carbon covalent metal–organic frameworks for highly efficient CO 2 conversion

Abstract Introducing defects into metal–organic frameworks (MOFs) offers a powerful strategy to tune their local microenvironments and boost catalytic performance. Herein, we report a “truncated linker” approach to construct defect‐engineered Cu(I)‐carbon covalent bonded framewor...

Magnetic Insights Into Heterogeneous and Nonequilibrium Electrochemical Reactions

ABSTRACT Electrochemical energy systems are governed by interfacial reactions that are spatially heterogeneous and far from equilibrium, causing deviations from ideal behavior and unexpected phenomena. Despite significant advances, conventional characterization techniques remain...

Diverse life histories and childhood socialization during the middle and late Dawenkou period: incremental dentin isotope evidence from the Jiaojia site, China

Investigating childhood socialization can enhance our comprehensions of families and the overall society in the past. Previous studies paid little attention to subadults, and the evidence on the intergenerational inheritance of wealth and status is still lacking. Stable isotope a...

An efficient surrogate-assisted hybrid optimization framework for polymer flooding management

<title>Abstract</title> Reservoir injection-production optimization plays a critical role in enhancing recovery in high-water-cut oilfields. While polymer flooding improves development efficiency by increasing viscosity and controlling fluid flow, its optimization faces several c...

Revisiting the equation of state of dark energy from DESI BAO with SNe Ia and CMB

Abstract The Dark Energy Spectroscopic Instrument (DESI) measurements of baryon acoustic oscillations (BAO) have recently shown a mild preference for dynamical dark energy over the standard $$\mathrm \Lambda $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>Λ</...