Results 231 to 240 of about 63,913 (348)

Defect Engineering and Effect of Vacancy Concentration on the Electrochemical Performance of V‐Based MXenes

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Using a top‐down defect engineering approach, controllable vacancy concentrations are introduced into V‐based MXenes by rationally designing the precursor MAX phase, aiming to investigate the effect of vacancy concentration on the electrochemical performance.
Leiqiang Qin   +7 more
wiley   +1 more source

Hydrogen Fuel Cell Technologies for Decarbonization: Opportunities, Challenges, and Strategic Pathways—A Comprehensive Review

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta   +5 more
wiley   +1 more source

Engineering Polyampholytes for Energy Storage Devices: Conductivity, Selectivity, and Durability. [PDF]

open access: yesPolymers (Basel)
Mussalimova M   +5 more
europepmc   +1 more source

Unlocking the Potential of Carbon Nitride (CxNy) Electrocatalysts in Hydrogen Evolution, Oxygen Evolution and Overall Water Splitting

open access: yesExploration, EarlyView.
Electrocatalytic water splitting with carbon nitride (CxNy) materials has gained attention due to their synthesis, structure, and robust application. Among various CxNy types, g‐C3N4 is the most stable allotrope and extensively researched. This review explores recent advances in HER, OER, and OWS, focusing on defect engineering, structural engineering,
Zi Wei Tan   +4 more
wiley   +1 more source

Ordered modulation of electronic structure for efficient alkaline hydrogen oxidation

open access: yesFlexMat, EarlyView.
We developed imc‐RuGa/hp‐hCN catalyst using in situ elastic spatial confinement method. This catalyst exhibits superior performance for the alkaline HOR, maintaining stable operation for 600 h at a 0.05 V versus RHE working voltage in 0.1 M KOH. It achieved 13 times greater mass activity than commercial PtRu/C.
Ziang Shang   +4 more
wiley   +1 more source

Lifetime of the Gas Evolution Electrode of the Zn–H2 Storage System

open access: yesFuel Cells, EarlyView.
ABSTRACT A novel electrically chargeable galvanic system is presented that efficiently stores energy in the form of zinc and releases hydrogen and electricity upon discharge. In this concept, oxygen is released at the gas electrode during charging, and zinc oxide is reduced to metallic zinc at the counter electrode.
Robert Hahn   +3 more
wiley   +1 more source

Interface Engineering in Solid‐State Sodium Batteries: Advances in Materials Design, Interfacial Strategies, and Multiscale Characterization

open access: yesInterdisciplinary Materials, EarlyView.
Since solid‐state sodium batteries (SSSBs) are a promising solution for advancing sodium‐based energy storage, it is necessary to systematically summarize the development process of SSSBs. It focuses on the role of interface engineering in addressing challenges such as materials design, interfacial strategies, and multiscale characterization.
Yonghuan Fu, Guosheng Shao, Yong Lei
wiley   +1 more source

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