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Boosting Oxygen Reduction via Integrated Construction and Synergistic Catalysis of Porous Platinum Alloy and Defective Graphitic Carbon

Integrated fabrication through the strong interaction between catalyst and carrier is crucial to realize efficient oxygen electrocatalysis for fuel cells. We report herein a porous Pt-rich alloy encapsulated by graphitic carbon via integration engineering, where a synergistic catalysis between ternary PtCuCo alloy and graphitic Co-N-C results in the...

A Solvatochromic Fluorescent Probe Reveals Polarity Heterogeneity upon Protein Aggregation in Cells.

Physicochemical details at the interphase of protein aggregation have been less explored especially in live cells. Herein, we reported a crystallization induced emission fluorophore to quantitatively interrogate the polarity of aggregated proteins. This solvatochromic probe, namely “AggRetina” probe, inherently binds to aggregated proteins and exhibits...

Self‐Assembly of a Bilayer 2D Supramolecular Organic Framework in Water

Accurate control of the layer number of orderly stacked 2D polymers has been an unsettled challenge in self-assembly. Herein we describe the fabrication of a bilayer 2D supramolecular organic framework from a monolayer 2D supramolecular organic framework in water by utilizing the multivalent coordination of a rod-like bipyridine ligands to zinc porphyrin...

Cobalt‐Catalyzed Radical Hydroamination of Alkenes with N‐fluorobenzenesulfonimides

An efficient and general radical hydroamination of alkenes using Co(salen) as catalyst, N-fluorobenzenesulfonimide (NFSI) and its analogues as both nitrogen source and oxidant was successfully disclosed. A variety of alkenes, including aliphatic alkenes, styrenes, α, β-unsaturated esters, amides, acids, as well as enones, were all compatible to provide...

1,6‐Anthrazoline‐linked π‐Conjugated Macrocycles and Two‐dimensional Polymer via Friedländer Synthesis

Synthesis of π-conjugated crystalline two-dimensional (2D) polymers remains largely unexplored due to limited synthetic methodology. Herein, we report the preparation of a 1,6-anthrazoline (AZ)-linked crystalline 2D polymer AZP via acid mediated Friedländer synthesis. The feasibility was examined first by two model reactions, followed by synthesis...

SmCo5 with a reconstructed oxyhydroxide surface for spin selective water oxidation under elevated temperature

The efficiency of electrolytic hydrogen production is limited by the slow reaction kinetics of oxygen evolution reaction (OER). Surface reconstructed ferromagnetic (FM) catalysts with spin pinning effect at the FM/oxyhydroxide interface could enhance the spin-dependent OER kinetics. However, in real-life applications electrolyzers are operated under...

Homoleptic Alkynyl‐protected Ag15 Nanocluster with Atomic Precision: Structural Analysis and Electrocatalytic Performance toward CO2 Reduction

Atomically precise Ag nanoclusters provide an ideal platform to correlate the structure and electrocatalytic performance at the atomic level. Herein, we report the fabrication of homoleptic alkynyl-protected Ag15(C≡CtBu)12+ (abbreviated as Ag15) nanocluster and its electrocatalytic properties toward CO2 reduction reaction. Crystal structure analysis...

Supernova: a deoxyribozyme that catalyzes a chemiluminescent reaction

Functional DNA molecules are useful components in nanotechnology and synthetic biology. To expand the toolkit of functional DNA parts, in this study we used artificial evolution to identify a glowing deoxyribozyme called Supernova. This deoxyribozyme transfers a phosphate from a 1,2-dioxetane substrate to its 5' hydroxyl group, which triggers a chemiluminescent...

Direct Synthesis of Functional Thermoplastic Elastomer with Excellent Mechanical Properties by Scandium‐Catalyzed Copolymerization of Ethylene and Fluorostyrenes

Synthesis of thermoplastic elastomers (TPEs) from ethylene and functionalized comonomers is of theoretical interest and practical importance. Herein, we report copolymerizations of ethylene (E) and ortho- / meta- / para- fluorostyrenes (S F = o FS/ m FS/ p FS) by using quinolyl methylene fluorenyl scandium complex (Flu-CH 2 -Qu)Sc(CH...

A Novel Low‐Strain Phosphate Cathode for High‐Rate and Ultralong Cycle‐Life Potassium‐Ion Batteries

Most potassium-ion battery (PIB) cathode materials have deficient structural stability because of the huge radius of potassium ion, leading to inferior cycling performance. In this work, we report the controllable synthesis of a novel low-strain phosphate material K 3 (VO)(HV 2 O 3 )(PO 4 ) 2 (HPO 4 ) (denoted KVP) nanorulers as an efficient...

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