Results 151 to 160 of about 1,921,662 (293)

Interplay Between Oxidation State, Intervalence Charge Transfer Transitions and Electronic Conductivity in a Series of Ru‐Based Metal–Organic Frameworks

open access: yesSmall, EarlyView.
Ru‐based square‐grid metal–organic frameworks undergo dramatic conductivity enhancements after chemical oxidation. The mixed‐valent states exhibit the highest conductivity values, which correlate with the appearance of intervalence charge transfer bands.
Wang Zhang   +12 more
wiley   +1 more source

Heavy‐Metal‐Free Colloidal Quantum Dots for Photocatalysis

open access: yesSmall, EarlyView.
Heavy‐metal‐free colloidal quantum dots provide sustainable photocatalytic platforms by combining tunable band structures, strong light absorption, and programmable surfaces/interfaces. This Review highlights how core/shell engineering, alloying, defect regulation, ligand design, and hybrid‐interface construction direct charge separation and ...
Xintong Xu, Ge Yang, Qin Li, Dechao Chen
wiley   +1 more source

Design and implementation of a phasor measurement unit using a new measurement technique. [PDF]

open access: yesSci Rep
Mohamed SA   +5 more
europepmc   +1 more source

One‐Step, High‐Yield Deconstruction of Kraft Lignin Into a Redox‐Active Small Molecule Using Sonicated Emulsive Water Microdroplets

open access: yesSmall, EarlyView.
This study reports a rapid (∼20 min), uncatalyzed deconstruction of Kraft lignin (∼14.2 kDa) using sonicated emulsive water microdroplets (SEWMs) in the presence of 2.5 M HNO3. The work demonstrates the combined synergistic effect of sonochemical excitation and microdroplet redox chemistry to induce C─C bond cleavage and reductive nitration to ...
Supriya Das   +12 more
wiley   +1 more source

Near‐Theoretical Redox‐Site Utilization and Fast Zn2+ Storage in a Polyimide‐CNT Cathode

open access: yesSmall, EarlyView.
A CNT‐integrated PTO‐based π‐conjugated polyimide cathode achieves near‐theoretical redox‐site utilization, ultrafast Zn2+ storage up to 20 A g−1, and exceptional cycling stability over 10 000 cycles in aqueous zinc‐ion batteries. ABSTRACT Achieving high utilization efficiency together with fast electrochemical transport remains a central challenge for
Heba H. Farrag   +3 more
wiley   +1 more source

Thermal Instability Pathways of Aluminum‐Based Nanocomposites: The Role of Alloying‐Element‐Driven Precipitation and Amorphous Interlayers

open access: yesSmall, EarlyView.
Thermal instability mechanisms governing novel Al‐based PVD/ALD nanocomposites are uncovered through synchrotron XRD, STEM, APT, and micromechanical testing. Temperature‐dependent crystallite evolution reveals a defined stability window before degradation dominates, offering new insight into the design of thermally robust, functional Al‐based ...
Hendrik C. Jansen   +10 more
wiley   +1 more source

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