Results 191 to 200 of about 269,863 (349)

Dynamic Reconstruction‐Engineered Heterointerfaces for Acidic Hydrogen Evolution at Ampere‐Level Current Density

open access: yesAdvanced Science, EarlyView.
A dynamic reconstruction strategy was utilized to construct PtCu/Cu3P heterostructures on the surface of self‐supporting Cu3P nanowires. The loose porosity in the restructured layer, together with a dynamic “dissolution‐redeposition” equilibrium during electrocatalysis, enables the electrode to maintain a low, stable overpotential for 240 h at ampere ...
Kaixi Wang   +3 more
wiley   +1 more source

Novel non-noble catalysts for proton exchange membrane fuel cells

open access: yes, 2009
As clean energy conversion devices, polymer electrolyte membrane fuel cells (PEMFCs) have many advantages, including high efficiency and low emission, making them attractive for both mobile and stationary applications.
钟和香, 张华民
core  

Confinement‐Driven CO Spillover in CuAg@MSN Tandem Catalysts Boosts C2 Selectivity Toward Electrocatalytic CO2 Reduction

open access: yesAdvanced Science, EarlyView.
The CuAg@MSN catalyst developed in this study promotes C─C coupling by regulating the coverage of *CO intermediates through spatial confinement effects, significantly enhancing the selectivity of CO2 electroreduction for C2 product formation. ABSTRACT Tandem catalysts represent a promising paradigm for synergistic electrochemical CO2 reduction (CO2RR ...
Jiaying Zhang   +14 more
wiley   +1 more source

Multi‐Targeting Carnosic Acid Kills Drug‐Resistant Helicobacter pylori With Narrow‐Spectrum Activity

open access: yesAdvanced Science, EarlyView.
Carnosic acid selectively eradicates drug‐resistant Helicobacter pylori through a multi‐targeted mechanism involving urease inhibition, membrane disruption, and biofilm eradication. It exhibits no detectable resistance, potent in vivo efficacy, and minimal impact on gut microbiota, positioning it as a promising narrow‐spectrum lead compound against ...
Yuefan Bai   +7 more
wiley   +1 more source

Oxidation-resistant AgRuIr alloy nanocages for efficient and enduring oxygen evolution in proton exchange membrane electrolysis. [PDF]

open access: yesNat Commun
Wang X   +13 more
europepmc   +1 more source

Photothermal Amplification via Nanorobotic Swarming Dynamics

open access: yesAdvanced Science, EarlyView.
This study explores a novel approach to enhance photothermal therapy using magnetically regulated microswarms. It details the development of magnetic nanoparticles organized into dynamic structures that improve heat retention and conversion efficiency.
Qinglong Wang   +8 more
wiley   +1 more source

Secondary Electron Hyperspectral Imaging (SEHI) in FIB - SEM for Proton Exchange Membrane Fuel Cells Technology. [PDF]

open access: yesACS Omega
Farr NTH   +6 more
europepmc   +1 more source

Nitrogen‐Coordinated Single Cobalt Atom Catalysts for Oxygen Reduction in Proton Exchange Membrane Fuel Cells

open access: yesAdvances in Materials, 2018
Xiao Xia Wang   +14 more
semanticscholar   +1 more source

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