Results 191 to 200 of about 3,820,327 (370)

Adaptive Catalytic Nanointerfaces for Controlled Hydrogen Evolution: an in Situ Electrochemical Approach

open access: yesAdvanced Science, EarlyView.
The ability to switch the HER activity of precious metals at will through a reconfigurable step‐edge/nanoparticle interface, using sulfur as an inorganic mediator, is demonstrated for the first time. This methodology addresses the durability issue of highly catalytic precious metals, which are typically single‐use, thereby extending their lifespan ...
Carlos Herreros‐Lucas   +6 more
wiley   +1 more source

Electrochemical Degradation of Plastic Waste Coupled with Hydrogen Evolution in Seawater Using Rosette‐Like High‐Entropy Oxides

open access: yesAdvanced Science, EarlyView.
Rosette‐like high‐entropy NiCoFeMnAlOx enable the electrochemical degradation of PGA plastic waste in seawater, coupling glycolic acid oxidation with hydrogen evolution. Abundant OH* species lower energy barriers for C─C and C─H bond activation, while in situ and theoretical studies reveal the catalytic mechanism.
Zhenhao Xu   +6 more
wiley   +1 more source

Semi‐Crystalline Ruthenium Catalyst for Zero‐Drag Hydrogen Production from Hybrid Alkaline Seawater Electrolysis

open access: yesAdvanced Science, EarlyView.
Tune metal‐support interaction to induce formation of crystalline/amorphous Ru interface towards zero‐drag hydrogen generation from hybrid alkaline seawater electrolysis. Abstract Hydrazine‐assisted hybrid alkaline seawater electrolysis offers a dual‐functional platform for environmentally benign remediation of toxic hydrazine and energy‐autonomous ...
Dongquan Yang   +6 more
wiley   +1 more source

Electrochemical CO2 Reduction on Janus Dual‐Atom Catalysts: Critical Role of Oxygen Coordination and an Effective Descriptor

open access: yesAdvanced Science, EarlyView.
Janus dual‐atom catalysts (DACs) with N3O3 hybrid coordination are designed with different combination of metal sites. Compared to normal DACs, most Janus DACs favor CH3OH or CH4 production over CO, driven by enhanced initial CO2 hydrogenation and stronger CO adsorption.
Hongling Liu   +5 more
wiley   +1 more source

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu   +5 more
wiley   +1 more source

Interior Morphology and Pore Structure in High Surface Area Carbon Catalyst Supports

open access: yesAdvanced Energy Materials, EarlyView.
The interior structure of high surface area carbon supports for proton exchange membrane fuel cells is a major yet poorly characterized factor influencing performance and durability. Using full‐range electron tomography, pores and pathways within the supports are visualized in 3D.
Robin Girod, Vasiliki Tileli
wiley   +1 more source

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