Results 271 to 280 of about 188,983 (374)

Unassisted Switchable Dual‐Photoelectrode Devices Utilizing p‐n Carbon Quantum Dots as “Semiconductor Electrolytes”: Optimization Between H2O2 and Solar Electricity Production

open access: yesAdvanced Science, EarlyView.
p‐n type carbon quantum dots (N‐CQDs) are designed as a conceptually‐new “semiconductor electrolyte” to develop a self‐driven photoelectrochemical cell that can be switched to optimize between H2O2 production and electricity generation under visible‐light illumination with water and O2 as reaction reagents.
Hui‐Min Duan   +8 more
wiley   +1 more source

Xenon Improves Neurologic Outcome and Reduces Secondary Injury Following Trauma in an In Vivo Model of Traumatic Brain Injury*

open access: yesCritical Care Medicine, 2015
R. Campos-Pires   +11 more
semanticscholar   +1 more source

Boosting Electronic Properties of CsPbBr3 Nanocrystals via Lithium‐Ion Doping and Surface Passivation for Enhanced Electrical Conductivity and Efficient White Light‐Emitting Diodes

open access: yesAdvanced Science, EarlyView.
Lithium doping in CsPbBr3 nanocrystals (NCs) enhances electrical conductivity (50‐fold increase) and photoluminescence quantum yield (50% to 67%) via lattice insertion and LimPbn alloy passivation. Optimized LiBr:PbBr2 ratio enable controlled doping, while hydrolyzed LiBr induces a phase transition to Cs4PbBr6.
Zhongsheng Ge   +9 more
wiley   +1 more source

Releasing 8.0 wt.% H2 from the LiBH4−2LiNH2 Composite within 5 Min under Light Illumination

open access: yesAdvanced Science, EarlyView.
The N−H bond in the [NH2]− ion group is significantly weakened by the non‐thermal effect of UV light, leading to a 60‐fold increase in dehydrogenation rate at the same temperature. As a result, over 8.0 wt.% H2 is released within 5 min. Abstract The absence of safe and efficient hydrogen storage technologies is the major bottleneck for widespread ...
Haoyang Yu   +7 more
wiley   +1 more source

Evaluation of Graphite/h-BN Bimaterials for Electric Propulsion. [PDF]

open access: yesJ Elect Propuls
Chari CS   +6 more
europepmc   +1 more source

Boosting Organic Long Persistent Luminescence by Enhancing Charge Separation Processes in Three‐Component Systems

open access: yesAdvanced Science, EarlyView.
Electron donor TMB is introduced into BF2bdk‐PhB system to enhance charge separation process. The resultant three‐component materials exhibit visible‐light‐excitable OLPL afterglow lasting for several hours under ambient environment, with OLPL efficiency of ≈10% and display OLPL brightness comparable to inorganic materials.
Zi Ye   +6 more
wiley   +1 more source

Inner-shell electrons enable both high power and energy densities. [PDF]

open access: yesNatl Sci Rev
Jiang Y   +6 more
europepmc   +1 more source

Respiration Drives Dynamic Metal–Organic Framework for Smart Photoresponse to Volatile Toxic Vapors and Their Photodynamic Sterilization

open access: yesAdvanced Science, EarlyView.
The flexible AIEgen (H4TPPE) with obvious molecular rotor structure is used as a linker to connect with the octahedral Zr6O4(OH)8(H2O)4 cluster‐based SBU to obtain the first smart luminescent MOF (Zr‐TPE‐MOF) with dynamic respiration driven by toxic vapors.
Yun‐Lan Li   +6 more
wiley   +1 more source

Secondary Electron Hyperspectral Imaging of Carbons: New Insights and Good Practice Guide

open access: yesAdvanced Science, EarlyView.
Secondary hyperspectral imaging of carbon surfaces is assessed with reference materials and in comparison to standard spectroscopies. Characterization of functional carbon materials from battery research reveals otherwise inaccessible information about the distribution of sp2 and amorphous carbon, as shown in graphite anode and carbon coated lithium ...
James F. Nohl   +22 more
wiley   +1 more source

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