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Controllable Heterogeneous Nucleation for Patterning High‐Quality Vertical and Horizontal ZnO Microstructures toward Photodetectors

High‐quality ZnO crystal microrod and microbelt arrays with precise arrangement and pure crystallographic orientation are fabricated by the combination of the capillary‐bridge lithography method and hydrothermal method. The discussion of crystallization mechanism is performed through the competition between homogeneous and heterogeneous nucleation processes....

Vacancies in Self‐Assembled Crystals: An Archetype for Clusters Statistics at the Nanoscale

Self‐assembly from a binary colloid and selective etching of one species creates vacancy‐doped crystals that serve as model systems for the study of vacancy cluster statistics. Hard sphere interaction precludes inter‐ or intra‐species affinities and secures random vacancy distribution. A cluster size tally from SEM in agreement with an analytical model...

Highly Stable Vanadium Redox‐Flow Battery Assisted by Redox‐Mediated Catalysis

A highly stable vanadium redox‐flow battery assisted by Prussian blue catalyst is demonstrated, which offers a redox‐mediated catalysis process to facilitate the interfacial charge transfer and enhance the energy efficiency. The battery shows a maximum power density of 1215 mW cm−2, the best average voltage efficiency of ≈90% and energy efficiency of...

A Tandem 0D/2D/2D NbS2 Quantum Dot/Nb2O5 Nanosheet/g‐C3N4 Flake System with Spatial Charge–Transfer Cascades for Boosting Photocatalytic Hydrogen Evolution

A tandem 0D/2D/2D NbS2 quantum dot/Nb2O5 nanosheet/g‐C3N4 flake (NSNOCN) system is developed. The unique spatial arrangement and morphology of NbS2, Nb2O5, and g‐C3N4 in the newly designed NSNOCN can introduce plenty of spatial charge–transfer cascades from g‐C3N4 to NbS2 via Nb2O5 to accelerate the charge transfer and boost the photocatalytic H2 evolution...

Bipolar Membranes to Promote Formation of Tight Ice‐Like Water for Efficient and Sustainable Water Splitting

Tight ice‐like water improves water dissociation and ion transport kinetics, significantly reducing the overpotential of a bipolar membrane for efficient water splitting. The interaction between water molecules and hematite nanoparticles grown on a graphene oxide catalyst effectively rearranges the network of water molecules to form tight ice‐like water...

SeC Bonding Promoting Fast and Durable Na+ Storage in Yolk–Shell SnSe2@SeC

Yolk–shell SnSe2@C nanospheres with SeC bonds in the carbon shell are synthesized by selenization of the SnO2@C precursor. Density functional theory calculation results reveal that the SeC bonding can enhance the charge transfer properties and the binding energy between the SnSe2 core and the carbon shell, leading to greatly improved high‐rate performance...

Interface Engineering of Partially Phosphidated Co@Co–P@NPCNTs for Highly Enhanced Electrochemical Overall Water Splitting

A composite catalyst comprising partially phosphidated core@shell Co@Co–P nanoparticles encapsulated in bamboo‐like N, P co‐doped carbon nanotubes is prepared through a pyrolysis–oxidation–phosphidation strategy. As a bifunctional catalyst for both the hydrogen evolution reaction and oxygen evolution reaction, it exhibits an excellent activity and stability...

Alkali‐Etched Ni(II)‐Based Metal–Organic Framework Nanosheet Arrays for Electrocatalytic Overall Water Splitting

The introduction of defects into metal–organic framework (MOF) by alkali‐etching treatment to create rich active sites and tailor electrical conductivity is proposed. The resultant defect‐rich Ni(II)‐MOF nanosheet array exhibits excellent electrocatalytic overall water splitting performance, comparable to the noble metal‐based benchmark catalysts. ...

Electrochemical Insights, Developing Strategies, and Perspectives toward Advanced Potassium–Sulfur Batteries

As a brand‐new, efficient, and low‐cost battery system, potassium–sulfur (K–S) batteries offer a great playground for chemists to underpin investigations on large‐scale power applications. This article addresses the electrochemical kinetic concept and discusses rational strategies on rational physical regulation and chemical engineering of K–S batteries,...

Establishing Multifunctional Interface Layer of Perovskite Ligand Modified Lead Sulfide Quantum Dots for Improving the Performance and Stability of Perovskite Solar Cells

A multifunctional interface layer is formed on perovskite film through establishing perovskite as the ligand on PbS quantum dots (QDs). The multifunctions are strong interactions of PbS QDs with perovskites particularly at the grain boundaries, an inhibition of iodide ions mobilization, and the reduction of the dangling bonds of Pb2+. Finally, the perovskite...

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