Guiding the Design of Heterogeneous Electrode Microstructures for Li‐Ion Batteries: Microscopic Imaging, Predictive Modeling, and Machine Learning

Heterogeneous microstructures play a critical role in determining the electrochemical and mechanical performances of Li‐ion batteries. Toward computational design of novel battery materials, the recent developments in spatially and temporally resolved imaging of microstructure and electrochemical phenomena, microstructure statistical characterization...

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Oxygen Evolution Catalysts at Transition Metal Oxide Photoanodes: Their Differing Roles for Solar Water Splitting

This review summarizes the main roles of electrocatalysts in transition metal oxide photoanodes for water oxidation in a photoelectrochemical cell and introduces analytical methods to explore their interfacial charge dynamics. It also analyzes the individual properties of semiconductors and electrocatalysts required for such efficient heterojunctions....

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High Power Density Thermoelectric Generators with Skutterudites

An innovative approach for designing high‐power‐density thermoelectric generators is presented. Inserting metallic composite layers in the thermoelectric legs enables a drastic decrease in their length, yielding record‐breaking power densities for skutterudite‐based generators. This novel design may allow for a strong reduction of the volume of thermoelectric...

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Au Clusters on Pd Nanosheets Selectively Switch the Pathway of Ethanol Electrooxidation: Amorphous/Crystalline Interface Matters

Novel of 2D PdAu heterophase nanosheets (PdAu HNS) with abundant amorphous Pd domain/crystalline Au cluster interphases are reported to achieve superior electrocatalytic performance for the ethanol oxidation reaction (EOR). In particular, the C1 pathway selectivity of PdAu HNS for EOR is improved by ten times compared with that of commercial Pd/C....

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Simultaneous Solar Steam and Electricity Generation from Synergistic Salinity‐Temperature Gradient

The coexisting temperature‐salinity gradient in solar‐driven interfacial evaporation remains to be completely exploited. A hybrid system of a thermogalvanic cell and reverse electrodialysis in solar‐driven interfacial evaporation is proposed to extract energy from temperature and salinity gradients simultaneously, achieving 1.4 kg m−2 h−1 vapor and...

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Open Framework Material Based Thin Films: Electrochemical Catalysis and State‐of‐the‐art Technologies

This review covers the ground‐breaking advances in electrocatalytic open framework materials (OFMs) based thin films by taking a look at their strengths, challenges, and future goals in electrocatalysis. In an attempt to holistically analyze the challenges from the perspective of potential research roadmaps on OFM thin films research, an outlook on...

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Ultrafast Zinc–Ion–Conductor Interface toward High‐Rate and Stable Zinc Metal Batteries

2D Zn‐based montmorillonite is developed as a zinc–ion–conductor interface for Zn metal anode based on its unique interlamellar structure and strong Zn2+ adsorption ability. Such a fast zinc–ion–conductor interface not only alleviates passivation and corrosion of Zn metal but also suppress dendrite growth, thus, achieving high‐rate, long‐cycle stability...

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High Power Density Thermoelectric Generators with Skutterudites

An innovative approach for designing high‐power‐density thermoelectric generators is presented. Inserting metallic composite layers in the thermoelectric legs enables a drastic decrease in their length, yielding record‐breaking power densities for skutterudite‐based generators. This novel design may allow for a strong reduction of the volume of thermoelectric...

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3D‐Printed Multi‐Channel Metal Lattices Enabling Localized Electric‐Field Redistribution for Dendrite‐Free Aqueous Zn Ion Batteries

A novel 3D Ni–Zn electrode with a multi‐channel lattice structure is constrcuted by 3D printing and subsequent electroless plating/electroplating techniques. The super‐hydrophilic surface and homogeneous distribution of localized electric field of the 3D lattice electrode enable highly reversible Zn plating/stripping. The 3D‐printed metal lattices with...

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Ethylene Carbonate‐Free Propylene Carbonate‐Based Electrolytes with Excellent Electrochemical Compatibility for Li‐Ion Batteries through Engineering Electrolyte Solvation Structure

Ethylene carbonate‐free propylene carbonate (PC)‐based electrolytes with excellent electrochemical compatibility are formed by employing diethyl carbonate (DEC) to introduce more PF6 − anions into the solvation sheath of Li+ to form an anion‐induced ion–solvent‐coordinated structure, greatly enhancing the reduction stability of PC towards graphite....

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