Abstract Production of ammonia is currently realized by the Haber–Bosch process, while electrochemical N 2 fixation under ambient conditions recognized as a promising green substitution in near future. A lack efficient electrocatalysts remains primary hurdle for initiation potential electrocatalytic synthesis ammonia. For cheaper metals, such copper, limited progress has been made to date. In this work, we boost reduction reaction catalytic activity Cu nanoparticles, which originally...

Highly efficient fixation of CO2 for the synthesis useful organic carbonates has drawn much attention. The design sustainable Lewis acid-base pairs, which mainly relied on expensive ligands, is key challenge in activation substrate and molecule. Here, we report application Mott-Schottky type nanohybrids composed electron-deficient Cu electron-rich N-doped carbon fixation. A ligand-free additive-free method was used to boost basicity supports acidity by increasing Schottky barrier at their...

Abstract Oxygen vacancies can help to capture oxygen‐containing species and act as active centers for oxygen evolution reaction (OER). Unfortunately, effective methods generating a high amount of on the surface various nanocatalysts are rather limited. Here, we described an way generate oxygen‐vacancy‐rich transition metal oxides, exemplified with Co 3 O 4 , simply by constructing highly coupled interface ultrafine nanocrystals metallic Ti. Impressively, amounts vacancy /Ti surpassed...

Primary alkyl alcohols can be directly converted into acetals and H₂<italic>via</italic> TiO₂-photocatalytic dehydrogenation coupling at room temperature, with no need for any hydrogen acceptors.

Abstract As a new type of heterogeneous catalyst with “homogeneous‐like” activity, single‐site transition‐metal materials are usually treated as integrated but separate active centers. A novel grouping effect is reported for single Ni−N 4 sites in nitrogen‐doped carbon (Ni/NC), where an effective ligand‐stabilized polycondensation method endows Ni/NC nanocatalysts high content Ni up to 9.5 wt %. The enhanced electron density at each site promotes highly efficient hydrogen transfer, which...

Cobalt nanoparticles containing both Co²⁺ and Co⁰ species supported on carbon nitride can function as heterogeneous nanocatalysts for a general transfer hydrogenation reaction in aqueous ammonia-borane solution at room temperature.

The exploitation of metal-free organic polymers as electrodes for water splitting reactions is limited by their presumably low activity and poor stability, especially the oxygen evolution reaction (OER) under more critical conditions. Now, thickness a cheap robust polymer, poly(p-phenylene pyromellitimide) (PPPI) was rationally engineered an in situ polymerization method to make polymer available first time flexible, tailorable, efficient, ultra-stable oxidation over wide pH range. PPPI...

Self-supported aerogel composed of carbon nitride nanolayers can act as a bifunctional photocatalyst and show enhanced photoreduction photooxidation performance due to the large surface areas nitrogen vacancies. The catalyze hydrogen evolution at rate nearly 4.2 mmol h-1 g-1 oxidize benzyl alcohols with high conversion efficiency selectivity under milder conditions. Note that activity for photochemical alcohol oxidation shows outstanding compared based photocatalysts. Both density functional...

A hydrogenation–dehydrogenation coupling process efficiently realized an intermolecular hydrogen transfer from isopropanol to LA under photocatalytic conditions over gold-loaded TiO₂ catalysts.

Abstract Electrochemical gas evolution and activation reactions are complicated processes, involving not only active electrocatalysts but also the interaction among solid electrodes, electrolyte, gas‐phase products reactants. In this study, multiphase interfaces of superadsorbing graphene‐based electrodes were controlled without changing centers to significantly facilitate mass diffusion kinetics for superior performance. The achieved in‐depth understanding how regulate interfacial...

We described an effective way to generate a Co3O4 mesocrystal array with well-developed porosity, simply by uniting coupled interface hydrazine treatment. Due the fast electron transfer and sufficient active sites, Ti mesh-supported nanoneedles electrode could provide current density of 49.9 mA cm-2 at 570 mV OER overpotential has exceptionally high stability.

The inactive g-C₃N₄ nanolayers could act as a voltage-driven “pump” to extract electrons from BiVO₄ and promote the hole–electron separation efficiency.

Enzyme catalysts always show an excellent catalytic selectivity, which is important in biochemistry, especially synthesis and biopharming. This selectivity achieved by combining the binding effect induced electrostatic of enzyme to attract a specific substrate then prearrangement substrates inside pocket. Herein, we report proof-of-concept application interfacial field constructing Schottky heterojunctions mimic catalysis enzyme. In combination with 3 D structure, transition metal/carbon...

Abstract As a new type of heterogeneous catalyst with “homogeneous‐like” activity, single‐site transition‐metal materials are usually treated as integrated but separate active centers. A novel grouping effect is reported for single Ni−N 4 sites in nitrogen‐doped carbon (Ni/NC), where an effective ligand‐stabilized polycondensation method endows Ni/NC nanocatalysts high content Ni up to 9.5 wt %. The enhanced electron density at each site promotes highly efficient hydrogen transfer, which...

Abstract The exploitation of metal‐free organic polymers as electrodes for water splitting reactions is limited by their presumably low activity and poor stability, especially the oxygen evolution reaction (OER) under more critical conditions. Now, thickness a cheap robust polymer, poly( p ‐phenylene pyromellitimide) (PPPI) was rationally engineered an in situ polymerization method to make polymer available first time flexible, tailorable, efficient, ultra‐stable oxidation over wide pH...

Direct activation of oxygen gas is achieved over dendritic carbons, resulting in an ultra-high current density without a diffusion plateau.

Transformer fault diagnosis is a necessary operation to ensure the stable of power system.

Abstract Carbon dioxide has been important in green chemistry, especially catalytic and chemical engineering applications. While exploring CO 2 to produce cyclohexanone for nylon or 66 that is currently produced with low yields using harsh methods, we made the exciting discovery carbonic acid, generated from dissolved water, was utilized as molecular ligand via hydrogenation of nitrobenzene aqueous solution uses Pd catalysts a total yield higher than 90 %. Importantly, gaseous nature H 3...