Achieving Excess Hydrogen Output via Concurrent Electrochemical and Chemical Redox Reactions on P-Doped Co-Based Catalysts with Electron Manipulation and Kinetic Regulation.

Electrolytic hydrogen production is of great significance in energy conversion and sustainable development. Traditional electrolytic water splitting confronts high anode voltage with oxygen generation and the amount of hydrogen produced at cathode depends entirely on the quantity of electric charge input. Herein, excess hydrogen output can be achieved by constructing a spontaneous hydrazine oxidation reaction (HzOR) coupled hydrogen evolution reaction (HER) system.

Tunable Low-Pressure Water Adsorption in Stable Multivariate Metal-Organic Frameworks for Boosting Water-Based Ultralow-Temperature-Driven Refrigeration.

The green water-based adsorption refrigeration is considered as a promising strategy to realize near-zero-carbon cooling applications. Although many metal-organic frameworks (MOFs) have been developed as water adsorbents, their cooling performance are commonly limited by the insufficient water uptakes below P/P = 0.2.

Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation.

Recently there has been a great interest in covalent organic frameworks due to their fascinating properties. Current approaches to improve their hydrolytic stability mainly rely on the transformation of the dynamic bonds into strong and irreversible bonds, but these approaches also reduce the versatility of the frameworks. Herein, we would like to demonstrate a solution to this dilemma by forming hierarchical bonds through olefin metathesis to produce highly stable COFs.

Lanthanocene and Cerocene Alkyl Complexes: Synthesis, Structure, and Reactivity Studies.

Lanthanocene and cerocene alkyl complexes [η-1,3-(MeC)CH]Ln(CHCH--NMe) (Ln = La and Ce ) were obtained from the salt metathesis of {[η-1,3-(MeC)CH]Ln(μ-κ-OSCF)K(THF)}·THF (Ln = La and Ce ) with LiCHCH--NMe. Reactivity of and toward various small molecules provides access to a series of lanthanide derivatives. For example, reactions of and with elemental chalcogens (sulfur and selenium) in 1:1 molar ratio give the lanthanide thiolates {[η-1,3-(MeC)CH]Ln(μ-SCHCH--NMe)} (Ln = La and Ce ) and selenolates {[η-1,3-(MeC)CH]Ln(μ-SeCHCH--NMe)} (Ln = La and Ce ).

An Azobenzenyl Anion Radical Complex of Magnesium: Synthesis, Structure, and Reactivity Studies.

Azobenzenyl anion radical complex of magnesium [HC(C(Me)N-2,6-PrCH)]Mg(PhNNPh) (THF) (2) was obtained for the first time through the reaction of [HC(C(Me)N-2,6-PrCH)]MgBr (1) with potassium graphite in the presence of azobenzene. Complex 2 is a useful electron-transfer reagent as shown by the reactivity with diphenyl disulfide, diphenyl diselenide, oxygen, sulfur, and MeSiN yielding the magnesium thiolate [HC(C(Me)N-2,6-PrCH)]Mg(SPh)(THF) (3), magnesium selenolate [HC(C(Me)N-2,6-PrCH)]Mg(SePh)(THF) (4), peroxido complex {[HC(C(Me)N-2,6-PrCH)]Mg(THF)}(μ-η-η-O) (5), persulfido complex {[HC(C(Me)N-2,6-PrCH)]Mg(THF)}(μ-η-η-S) (6), and azido complex [HC(C(Me)N-2,6-PrCH)]MgN (7), respectively. Furthermore, treatment of 2 with MeSiCHN results in a rearrangement product {[HC(C(Me)N-2,6-PrCH)]Mg[CNN(SiMe)]} (8).