Results 81 to 90 of about 59,836 (250)

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi   +8 more
wiley   +1 more source

Iridium-Catalyzed Regiodivergent Atroposelective C–H Alkylation of Heterobiaryls with Alkenes

open access: yes
The atroposelective direct C–H alkylation of heterobiaryls with simple alkenes represents a challenging and underexplored frontier. Herein we report an iridium(I)-catalyzed regiodivergent and enantioselective C–H alkylation of 1-arylisoquinolines or 2 ...
Dong Xing (760733)   +5 more
core   +3 more sources

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

open access: yesAdvanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida   +4 more
wiley   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

open access: yesAdvanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon   +6 more
wiley   +1 more source

Iridium-Catalyzed Regioselective Hydroalkynylation of Internal Alkenes Directed by an Oxime

open access: yes, 2021
We report here an iridium-catalyzed hydroalkynylation of allylic alcohols protected by an oxime group. Catalytic alkynylation occurs exclusively at the distal position of the alkene.
Bi-Jie Li   +5 more
core   +1 more source

Iridium-Catalyzed Reaction of Aroyl Chlorides with Internal Alkynes to Produce Substituted Naphthalenes and Anthracenes

open access: yes, 2016
Benzoyl chlorides efficiently react with 2 equiv of dialkylacetylenes as well as diphenylacetylene in the presence of an iridium catalyst accompanied by decarbonylation to produce 1,2,3,4-tetrasubstituted naphthalenes in good yields.
Masakatsu Nomura (2706712)   +3 more
core   +2 more sources

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Iridium-Catalyzed 1,3-Rearrangement of Allylic Ethers

open access: yes, 2023
The 1,3-rearrangement of allylic derivatives has rarely been reported, except for allylic alcohols. Herein, we describe an iridium-catalyzed 1,3-rearrangement of readily available allylic ethers to access the difficultly prepared allylic ethers with a ...
Yifan Song (2537101)   +5 more
core   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin   +7 more
wiley   +1 more source

Iridium Oxide Network on Non‐conductive TiO2 Support as a Catalyst for Oxygen Evolution Reaction

open access: yesChemElectroChem
Successful deployment of hydrogen technologies relies on converting electricity from renewable energy sources into hydrogen. Proton exchange membrane electrolyzers are currently the technology of choice for this transformation.
Shabnam Zargarian   +3 more
doaj   +1 more source

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