Design principle and synthetic strategy for metal-organic framework composites

Lattice-confined localized alloying of Bi0.67TaS2 anode enabling ultrafast and stable sodium storage up to 150 C

Green and non-destructive separation of cathode materials from aluminum foil in spent lithium-ion batteries

Synergistic Bulk and Surface Engineering for Expeditious and Durable Reversible Protonic Ceramic Electrochemical Cells Air Electrode

AbstractReversible protonic ceramic electrochemical cells (R‐PCECs) offer the potential for high‐efficiency power generation and green hydrogen production at intermediate temperatures. However, the commercial viability of R‐PCECs is hampered by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) within conventional air electrodes operating at reduced temperatures. To address this challenge, this work introduces a novel approach based on the simultaneous optimization of bulk‐phase metal‐oxygen bonds and in‐situ formation of a metal oxide nano‐catalyst surface modification. This strategy is designed to expedite the ORR/OER electrocatalytic activity of air electrodes exhibiting triple (O2−, H+, e−) conductivity. Specifically, this engineered air electrode nanocomposite‐Ba(Co0.4Fe0.4Zr0.1Y0.1)0.95Ni0.05F0.1O2.9‐δ demonstrates remarkable ORR/OER catalytic activity and exceptional durability in R‐PCECs. This is evidenced by significantly improved peak power density from 626 to 996 mW cm−2 and highly stable reversibility over a 100‐h cycling period. This research offers a rational design strategy to achieve high‐performance R‐PCEC air electrodes with superior operational activity and stability for efficient and sustainable energy conversion and storage.

Atomic-scale insights into the electrochemical mechanisms of aluminum-sulfur batteries: A first-principles study of Al-S clusters on graphene

Modified Zhenwu Decoction improved intestinal barrier function of experimental colitis through activation of sGC-mediated cGMP/PKG signaling

Simultaneously mastering operando strain and reconstruction effects via phase-segregation strategy for enhanced oxygen-evolving electrocatalysis

The Dual‐Site Adsorption and High Redox Activity Enabled by Hybrid Organic‐Inorganic Vanadyl Ethylene Glycolate for High‐Rate and Long‐Durability Lithium–Sulfur Batteries (Small 20/2023)

3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application

The Dual‐Site Adsorption and High Redox Activity Enabled by Hybrid Organic‐Inorganic Vanadyl Ethylene Glycolate for High‐Rate and Long‐Durability Lithium–Sulfur Batteries

The bio-inspired heterogeneous single-cluster catalyst Ni100–Fe₄S₄ for enhanced electrochemical CO₂ reduction to CH₄

A heterogeneous single-cluster catalyst Ni100-Fe4S4via bio-inspired design strategy exhibits excellent theoretical CO2 electroreduction performance.

Detection and treatment of biofilm-induced periodontitis by histidine-doped FeSN nanozyme with ultra-high peroxidase-like activity

How Alginate Lyase Produces Quasi-Monodisperse Oligosaccharides: A Normal Mod-Based Docking and Molecular Dynamics Simulation Study

Exceptional Anisotropic Noncovalent Interactions in Ultrathin Nanorods: The Terminal σ-Hole

A universal chemical-induced tensile strain tuning strategy to boost oxygen-evolving electrocatalysis on perovskite oxides

Exploring effective, facile, and universal tuning strategies to optimize material physicochemical properties and catalysis processes is critical for many sustainable energy systems, but still challenging. Herein, we succeed to introduce tensile strain into various perovskites via a facile thermochemical reduction method, which can greatly improve material performance for the bottleneck oxygen-evolving reaction in water electrolysis. As an ideal proof-of-concept, such a chemical-induced tensile strain turns hydrophobic Ba5Co4.17Fe0.83O14- δ perovskite into the hydrophilic one by modulating its solid–liquid tension, contributing to its beneficial adsorption of important hydroxyl reactants as evidenced by fast operando spectroscopy. Both surface-sensitive and bulk-sensitive absorption spectra show that this strategy introduces oxygen vacancies into the saturated face-sharing Co-O motifs of Ba5Co4.17Fe0.83O14- δ and transforms such local structures into the unsaturated edge-sharing units with positive charges and enlarged electrochemical active areas, creating a molecular-level hydroxyl pool. Theoretical computations reveal that this strategy well reduces the thermodynamic energy barrier for hydroxyl adsorption, lowers the electronic work function, and optimizes the charge/electrostatic potential distribution to facilitate the electron transport between active sites and hydroxyl reactants. Also, this strategy is reliable for other single, double, and Ruddlesden–Popper perovskites. We believe that this finding will enlighten rational material design and in-depth understanding for many potential applications.

Embedding Atomically Dispersed Iron Sites in Nitrogen‐Doped Carbon Frameworks‐Wrapped Silicon Suboxide for Superior Lithium Storage

Combined Corner‐Sharing and Edge‐Sharing Networks in Hybrid Nanocomposite with Unusual Lattice‐Oxygen Activation for Efficient Water Oxidation

Tensile‐Strained RuO ₂ Loaded on Antimony‐Tin Oxide by Fast Quenching for Proton‐Exchange Membrane Water Electrolyzer

The adaptability of H9N2 avian influenza A virus to humans: A comparative docking simulation study

Structure, stability, electronic and magnetic properties of monometallic Pd, Pt, and bimetallic Pd-Pt core–shell nanoparticles