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Stable Pd(0) Complexes with Ferrocene Bisphosphanes Bearing Phosphatrioxaadamantyl Substituents Efficiently Catalyze Selective C‐H Arylation of Benzoxazoles by Aryl Chlorides

Versatile applications and unique performance of 1,1’-bis(diphenylphosphanyl)ferrocene (dppf) in coordination chemistry and catalysis prompted the search for its analogs. This contribution describes the synthesis of the first donor-unsymmetric dppf congeners bearing bulky and rigid 1,3,5,7-tetramethyl-2,4,6-trioxa-8-phosphaadamantyl (CgP) donor groups,...

Supported Vanadium Catalysts for Selective Sulfur‐Oxidative Dehydrogenation of Propane

Applying the approach of using sulfur vapor (S2) as an alternative oxidant, the oxidative dehydrogenation of propane (ODHP) proceeds with promising propylene selectivity over supported V/Al2O3 precatalysts. Compared to O2 as the oxidant, S2 leads to significantly higher selectivities to propene, underscoring its promise as a “soft” oxidant. Abstract...

Hierarchical Bimetallic Electrocatalyst with Amorphous SnO Layer for Highly Efficient Electroreduction of CO2

Renewable electricity-driven reduction of CO2 into value-added chemicals has been recognized as a promising sustainable energy conversion method to achieve carbon-neutral. Although Sn-based catalysts show excellent selectivity towards CO and HCOOH in CO2 reduction, the reaction activity, i.e. current density, remains quite low (< 100 mA cm–2 )....

Electrocatalytic Oxidation of Methanol over An Electrode with Ni‐MOF‐74 Catalyst

Developing non-noble metal catalysts for methanol oxidation in fuel cells is of importance. In this work, Ni-MOF-74 was synthesized through simple solvothermal method and fully characterized. The as-made Ni-MOF-74 modified carbon paste electrode (Ni-MOF-74/CPE) was applied for methanol electrooxidation reaction in 0.1 M NaOH solution. Ni-MOF-74 had...

Convenient Unsymmetrical Disulfane Synthesis: Basic Zeolite‐Catalyzed Thiol‐Disulfane Exchange Reaction

Convenient catalytic synthetic methods for the preparation of unsymmetrical disulfanes are described. Na-exchanged X type zeolite (Na-X), commercially available as MS-13X, effectively catalyzes thiol-disulfane exchange reactions with 1.0 equivalent of thiols and 2.5–3.0 equivalents of disulfanes at 10 o C to room temperature under air. The reactions...

Boosting the Electrocatalytic Activity of Fe−Co Dual‐Atom Catalysts for Oxygen Reduction Reaction by Ligand‐Modification Engineering

Inside the intermediates: The reaction intermediates of *O, *OH, and *O2 can be stably adsorbed on FeCoN6 to bring in new active centers by forming FeCoN6(O), FeCoN6(OH) and FeCoN6(O2) complexes and to boost the ORR activity. Especially, the overpotentials of FeCoN6-I(OH) and FeCoN6-I(O2) are as low as ∼0.23 V, showing the extraordinary ORR activity....

Cu2O‐CuO/Chitosan Composites as Heterogeneous Catalysts for Benzylic C—H Oxidation at Room Temperature

Recently, in catalysis, chitosan has been exploited as a macrochelating ligand for metal active species due to the presence of various functional groups in its structure. Moreover, copper-based catalysts are classified as one of the most environmentally friendly catalytic systems and their use for the oxidation of alkylarene has not been established...

Stable CAAC‐based Ruthenium Complexes for Dynamic Olefin Metathesis Under Mild Conditions

A series of olefin metathesis catalysts bearing cyclic (alkyl)(amino)carbene (CAAC) ligands of varying size and steric demand has been synthesized and evaluated in ring-closing-, self-, and cross-metathesis reactions at room temperature. The catalysts were also probed for potential applications in dynamic covalent chemistry. The majority of the catalysts...

Supported Plasmonic Nanocatalysts for Hydrogen Production by Wet and Dry Photoreforming of Biomass and Biogas Derived Compounds: Recent Progress and Future Perspectives

Biomass photoconversion: This review summarizes recent developments of wet- and dry-photoreforming of biomass-derived compounds and biogas, focusing on the design of supported nano-photocatalysts, hydrogen production rates, and reaction mechanisms for various feedstocks. Photogenerated hydrogen yield may be enhanced by the bandgap modulation, metal/semiconductor...

Enhanced Catalytic Efficiency of L‐amino Acid Deaminase Achieved by a Shorter Hydride Transfer Distance

Protein engineering: α-Keto acids are widely used in pharmaceutical, feed, food, and chemical synthesis. In this study, the key factors affecting the catalytic efficiency was found, the catalytic efficiency and substrate scope were improved through rational protein engineering and a strategy for using PmiLAAD variants (W1 and W2) in one pot in a parallel,...

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